Article
Plant Sciences
Yunzhou Qiao, Dongxiao Li, Wenjun Qiao, Yongpeng Li, Hong Yang, Wenwen Liu, Mengyu Liu, Xiying Zhang, Baodi Dong
Summary: The study quantified the relationship between transpiration efficiency and relative soil water content, finding TE (FC) to be a surrogate for screening high-yield and high-WUE cultivars.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Hanaa Darouich, Razan Karfoul, Tiago B. Ramos, Ali Moustafa, Baraa Shaheen, Luis S. Pereira
Summary: This study aimed to investigate the water requirements of jute mallow in the Akkar region of Syria, and analyzed the impact of different irrigation methods on the crop. The results showed that drip irrigation had the highest water productivity and economic indicators, while basin irrigation led to substantial percolation losses.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Agronomy
Carlos Felipe dos Santos Cordeiro, Cristiane Pilon, Fabio Rafael Echer, Renato Albas, R. Scott Tubbs, Glendon H. Harris, Ciro Antonio Rosolem
Summary: Peanut pod yield and its response to fertilizer-K are influenced by the interaction between the environment and plant density. Planting density and K fertilization have a greater impact on rainfed areas than irrigated environments. Increasing plant density leads to an increase in peanut leaf area index and dry matter accumulation, but a decrease in stomatal conductance, particularly in rainfed fields. The application of 50 kg ha(-1) of K in low-K soil can increase leaf K concentration, stomatal conductance, and yield in rainfed fields, while in irrigated fields, yield increases up to a certain plant density and does not further increase with higher densities or K application.
Article
Agronomy
Minguo Liu, Xiaojuan Wu, Huimin Yang
Summary: This study focused on the evapotranspiration characteristics and soil water balance of alfalfa grasslands under different irrigation treatments. Results showed good agreement between model-simulated soil water and measured values, and transpiration was identified as the main water loss in alfalfa grasslands. The research concluded that moderate deficit irrigation can be applied to improve water use efficiency in alfalfa production.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Agronomy
Chong Nie, Yuefei Huang, Shuo Zhang, Yuting Yang, Sha Zhou, Changjie Lin, Guangqian Wang
Summary: The study found that the sensitivity of WUE to soil water content increases significantly with the increase of vapor pressure deficit, and the sensitivity of WUE to soil water content is higher at high vapor pressure deficit. The change in T/ET is the main reason for the change in ecosystem WUE with SWC.
AGRICULTURAL AND FOREST METEOROLOGY
(2021)
Article
Environmental Sciences
Rui Kong, Zengxin Zhang, Zejiang Yu, Richao Huang, Ying Zhang, Xi Chen, Chong-Yu Xu
Summary: This study used the LPJ model to investigate the potential effects of climate change and soil moisture on water use efficiency (WUE) in China. The results showed that WUE had increased in the past 40 years, especially in the grassland areas of Northwest China. Future climate change is projected to further increase WUE and exacerbate soil moisture dryness, highlighting the need for careful water resource management in arid and semi-arid regions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Xiangyang Sun, Xinyu Zhang, Genxu Wang, Zhaoyong Hu, Chunlin Song, Shan Lin, Juying Sun, Shouqin Sun
Summary: This study classified 71 FLUXNET2015 sites into energy-limited, transitional, and water-limited climates based on the Budyko dryness index. Modified WUE models were used to predict daytime transpiration, and the results showed that an additional net radiation term in the WUE model effectively predicted transpiration in energy-limited and transitional regions, while an additional soil water content term performed well in water-limited regions. Combining these two terms improved the prediction of transpiration in both energy-limited and transitional regions.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2023)
Article
Horticulture
E. B. Lulane, S. Dzikiti, T. Volschenk, E. Lotze, S. J. E. Midgley
Summary: Apple producers are using nets to address climate and pest-related challenges. This study found that under fixed nets, water use in apple orchards decreased and water saving benefits were smaller than expected.
SCIENTIA HORTICULTURAE
(2022)
Article
Agronomy
Tiago B. Ramos, Lucian Simionesei, Ana R. Oliveira, Ramiro Neves, Hanaa Darouich
Summary: The success of an irrigation decision support system relies on the reliability of information provided to farmers, which can be validated by remote sensing data. A study in southern Portugal found that hydrological models accurately estimated soil water balance, with remote sensing products complementing this information. This suggests that remote sensing can be a valuable tool in improving irrigation practices for vine crops.
Article
Plant Sciences
Weldemichael Tesfuhuney, Muthianzhele Ravuluma, Admire Rukudzo Dzvene, Zaid Bello, Fourie Andries, Sue Walker, Davide Cammarano
Summary: The purpose of this study was to evaluate alternative management practices such as in-field rainwater harvesting (IRWH) and intercropping techniques through conducting on-farm demonstrations. The study found that water productivity and radiation use efficiency were positively related, and the associations varied for different tillage systems. In-field rainwater harvesting had higher water use and radiation use efficiency compared to conventional tillage, and intercropping systems showed water use advantages over solely growing crops. Adjusting plant population and sowing dates based on water availability and the onset of rainfall can enhance the efficiency of water and radiation usage in intercropping management.
Article
Geosciences, Multidisciplinary
Yuchan Chen, Xiuzhi Chen, Meimei Xue, Chuanxun Yang, Wei Zheng, Jun Cao, Wenting Yan, Wenping Yuan
Summary: This study introduces a method based on hydrologically similar groups to quantify the Pw parameter in the Budyko framework and applies it to 366 watersheds worldwide. Results show that soil moisture (SM) and fractional vegetation cover (FVC) are controlling factors of Pw in each hydrologically similar group. Non-linear regression models are developed to estimate Pw for different hydrologically similar groups. Validation results indicate satisfactory performance of the proposed method in estimating Pw in the Budyko framework.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2023)
Article
Forestry
You Yin, Yong-Bin Zhou, Hui Li, Song-Zhu Zhang, Yun-Ting Fang, Yong-Jiang Zhang, Xiaoming Zou
Summary: Water use efficiency (WUE) is a key physiological trait in studying plant carbon and water relations. This study found that tree WUE is influenced by calcium availability and precipitation. The research also established a tight coupling between water and calcium uptake, with soil calcium contributing more to WUE than precipitation.
Article
Environmental Sciences
Yahui Wang, Sien Li, Yaokui Cui, Shujing Qin, Hui Guo, Danni Yang, Chunyu Wang
Summary: Drip irrigation has been shown to increase crop water use efficiency by 11% compared to traditional border irrigation, reducing evapotranspiration and soil evaporation. However, the water-saving effect of drip irrigation at a large scale is not always more than a 20% improvement as seen in many field experiments.
Article
Biodiversity Conservation
Xiang An
Summary: This study investigates the impacts of precipitation and temperature on ecosystem water use efficiency (EWUE) and vegetation water use efficiency (VWUE). The results show that VWUE decreases at a higher rate than EWUE in winter, and VWUE exhibits a decreasing trend over the years, while EWUE increases. Precipitation negatively affects both EWUE and VWUE, while temperature has a significant positive impact. Through sensitivity and contribution rate analysis, it is determined that precipitation attenuates WUE, while temperature promotes WUE. This study enhances our understanding of the climate response of ecosystems and vegetation water flux.
ECOLOGICAL INDICATORS
(2022)
Article
Agronomy
Cui Deng, Maokui Lyu, Xiaoling Xiong, Josep Penuelas, Jordi Sardans, Xiaojie Li, Weisheng Lin, Yusheng Yang, Jinsheng Xie
Summary: When reforesting degraded lands in subtropical China, the presence of understory ferns can affect soil organic carbon dynamics and soil respiration. This study found that removing ferns from restoration sites significantly decreased soil respiration in younger pine stands, but not in older ones.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Forestry
Dominik Thom, Christian Ammer, Peter Annighoefer, Reka Aszalos, Sebastian Dittrich, Jonas Hagge, William S. Keeton, Bence Kovacs, Ole Krautkraemer, Jorg Mueller, Goddert von Oheimb, Rupert Seidl
Summary: With progressing climate change, increasing weather extremes will endanger tree regeneration. Canopy openings provide light for tree establishment, but also reduce the microclimatic buffering effect of forests.
EUROPEAN JOURNAL OF FOREST RESEARCH
(2023)
Article
Biodiversity Conservation
Joerg Mueller, Oliver Mitesser, Marc W. Cadotte, Fons van der Plas, Akira S. Mori, Christian Ammer, Anne Chao, Michael Scherer-Lorenzen, Petr Baldrian, Claus Baessler, Peter Biedermann, Simone Cesarz, Alice Classen, Benjamin M. Delory, Heike Feldhaar, Andreas Fichtner, Torsten Hothorn, Claudia Kuenzer, Marcell K. Peters, Kerstin Pierick, Thomas Schmitt, Bernhard Schuldt, Dominik Seidel, Diana Six, Ingolf Steffan-Dewenter, Simon Thorn, Goddert von Oheimb, Martin Wegmann, Wolfgang W. Weisser, Nico Eisenhauer
Summary: Intensification of land use by humans has led to a homogenization of landscapes and decreasing resilience of ecosystems globally due to a loss of biodiversity, including the majority of forests. Biodiversity-ecosystem functioning (BEF) research has provided compelling evidence for a positive effect of biodiversity on ecosystem functions and services at the local (alpha-diversity) scale, but we largely lack empirical evidence on how the loss of between-patch beta-diversity affects biodiversity and multifunctionality at the landscape scale (gamma-diversity).
GLOBAL CHANGE BIOLOGY
(2023)
Article
Forestry
Laura Somenguem Donfack, Peter Schall, Martina Mund, Alexander Knohl, Christian Ammer
Summary: Thinning has different effects on the growth patterns of beech stands, with managed stands showing higher growth rates than unmanaged stands. In managed stands, stem base growth begins earlier and lasts longer compared to unmanaged stands.
TREES-STRUCTURE AND FUNCTION
(2023)
Article
Biodiversity Conservation
Amani S. Lwila, Annapurna Post-Leon, Christian Ammer, Martina Mund
Summary: This study investigates the effects of tree diversity on fine root productivity, mortality, and turnover rates in Germany. The results suggest that site conditions and species identity play a crucial role in explaining fine root dynamics, and increasing tree species diversity may not necessarily lead to higher belowground productivity.
ECOLOGICAL INDICATORS
(2023)
Article
Plant Sciences
Iris Hordijk, Daniel S. Maynard, Simon P. Hart, Lidong Mo, Hans ter Steege, Jingjing Liang, Sergio de-Miguel, Gert-Jan Nabuurs, Peter B. Reich, Meinrad Abegg, C. Yves Adou Yao, Giorgio Alberti, Angelica M. Almeyda Zambrano, Braulio V. Alvarado, Alvarez-Davila Esteban, Patricia Alvarez-Loayza, Luciana F. Alves, Christian Ammer, Clara Anton-Fernandez, Alejandro Araujo-Murakami, Luzmila Arroyo, Valerio Avitabile, Gerardo A. Aymard C, Timothy Baker, Radomir Balazy, Olaf Banki, Jorcely Barroso, Meredith L. Bastian, Jean-Francois Bastin, Luca Birigazzi, Philippe Birnbaum, Robert Bitariho, Pascal Boeckx, Frans Bongers, Olivier Bouriaud, Pedro H. S. Brancalion, Susanne Brandl, Roel Brienen, Eben N. Broadbent, Helge Bruelheide, Filippo Bussotti, Roberto Cazzolla Gatti, Ricardo G. Cesar, Goran Cesljar, Robin Chazdon, Han Y. H. Chen, Chelsea Chisholm, Emil Cienciala, Connie J. Clark, David B. Clark, Gabriel Colletta, David Coomes, Fernando Cornejo Valverde, Jose J. Corral-Rivas, Philip Crim, Jonathan Cumming, Selvadurai Dayanandan, Andre L. de Gasper, Mathieu Decuyper, Geraldine Derroire, Ben DeVries, Ilija Djordjevic, Amaral Ieda, Aurelie Dourdain, Engone Obiang Nestor Laurier, Brian Enquist, Teresa Eyre, Adande Belarmain Fandohan, Tom M. Fayle, Leandro V. Ferreira, Ted R. Feldpausch, Leena Finer, Markus Fischer, Christine Fletcher, Lorenzo Frizzera, Javier G. P. Gamarra, Damiano Gianelle, Henry B. Glick, David Harris, Andrew Hector, Andrea Hemp, Geerten Hengeveld, Bruno Herault, John Herbohn, Annika Hillers, Euridice N. Honorio Coronado, Cang Hui, Hyunkook Cho, Thomas Ibanez, Il Bin Jung, Nobuo Imai, Andrzej M. Jagodzinski, Bogdan Jaroszewicz, Vivian Johanssen, Carlos A. Joly, Tommaso Jucker, Viktor Karminov, Kuswata Kartawinata, Elizabeth Kearsley, David Kenfack, Deborah Kennard, Sebastian Kepfer-Rojas, Gunnar Keppel, Mohammed Latif Khan, Timothy Killeen, Hyun Seok Kim, Kanehiro Kitayama, Michael Koehl, Henn Korjus, Florian Kraxner, Diana Laarmann, Mait Lang, Simon Lewis, Huicu Lu, Natalia Lukina, Brian Maitner, Yadvinder Malhi, Eric Marcon, Beatriz Schwantes Marimon, Ben Hur Marimon-Junior, Andrew Robert Marshall, Emanuel Martin, Olga Martynenko, Jorge A. Meave, Omar Melo-Cruz, Casimiro Mendoza, Cory Merow, Miscicki Stanislaw, Abel Monteagudo Mendoza, Vanessa Moreno, Sharif A. Mukul, Philip Mundhenk, Maria G. Nava-Miranda, David Neill, Victor Neldner, Radovan Nevenic, Michael Ngugi, Pascal A. Niklaus, Jacek Oleksyn, Petr Ontikov, Edgar Ortiz-Malavasi, Yude Pan, Alain Paquette, Alexander Parada-Gutierrez, Elena Parfenova, Minjee Park, Mar Parren, Narayanaswamy Parthasarathy, Pablo L. Peri, Sebastian Pfautsch, Oliver L. Phillips, Nicolas Picard, Maria Teresa Piedade, Daniel Piotto, Nigel C. A. Pitman, Irina Polo, Lourens Poorter, Axel Dalberg Poulsen, John R. Poulsen, Hans Pretzsch, Freddy Ramirez Arevalo, Zorayda Restrepo-Correa, Mirco Rodeghiero, Samir Rolim, Anand Roopsind, Francesco Rovero, Ervan Rutishauser, Purabi Saikia, Christian Salas-Eljatib, Peter Schall, Dmitry Schepaschenko, Michael Scherer-Lorenzen, Bernhard Schmid, Jochen Schongart, Eric B. Searle, Vladimir Seben, Josep M. Serra-Diaz, Douglas Sheil, Anatoly Shvidenko, Javier Silva-Espejo, Marcos Silveira, James Singh, Plini Sist, Ferry Slik, Bonaventure Sonke, Alexandre F. Souza, Krzysztof Sterenczak, Jens-Christian Svenning, Miroslav Svoboda, Ben Swanepoel, Natalia Targhetta, Nadja Tchebakova, Raquel Thomas, Elen Tikhonova, Peter Umunay, Vladimir Usoltsev, Renato Valencia, Fernando Valladares, Fons van Der Plas, Do Van Tran, Michael E. Van Nuland, Rodolfo Vasquez Martinez, Hans Verbeeck, Helder Viana, Alexander C. Vibrans, Simone Vieira, Klaus von Gadow, Hua-Feng Wang, James Watson, Gijsbert D. A. Werner, Susan K. Wiser, Florian Wittmann, Verginia Wortel, Roderick Zagt, Tomasz Zawila-Niedzwiecki, Chunyu Zhang, Xiuhai Zhao, Mo Zhou, Zhi-Xin Zhu, Irie Casimir Zo-Bi, Thomas W. Crowther
Summary: Biodiversity is important for ecosystems, with higher species richness often leading to increased productivity. However, the relationship between biodiversity and productivity varies across environments and is less pronounced at high levels of species richness. Community evenness can mediate this relationship, and our study shows that it is negatively correlated with species richness and plays a crucial role in the biodiversity-productivity relationship.
JOURNAL OF ECOLOGY
(2023)
Article
Forestry
Antonios Apostolakis, Ingo Schoening, Beate Michalzik, Christian Ammer, Peter Schall, Falk Haensel, Thomas Nauss, Susan Trumbore, Marion Schrumpf
Summary: In this study, forest and soil inventories were conducted in 150 temperate forest sites in three German landscapes, and in situ soil CO2 efflux was measured in early summer of 2018 and 2019. The results showed that forest structural properties had a significant impact on soil CO2 efflux, while forest composition had a minor effect. The study also found that under drought conditions, the influence of forest structural properties on soil CO2 efflux was mediated by fine root biomass.
Review
Biodiversity Conservation
Sabina Burrascano, Francesco Chianucci, Giovanni Trentanovi, Sebastian Kepfer-Rojas, Tommaso Sitzia, Flora Tinya, Inken Doerfler, Yoan Pailletj, Thomas Andrew Nagel, Bozena Mitic, Lourdes Morillas, Silvana Munzi, Theo Van der Sluis, Edoardo Alterio, Lorenzo Balducci, Rafael Barreto de Andrades, Christophe Bougett, Paolo Giordani, Thibault Lachat, Dinka Matosevicx, Francesca Napoleone, Juri Nascimbene, Chiara Paniccia, Nicolas Roth, Reka Aszalos, Gediminas Brazaitis, Andrea Cutini, Ettore D'Andrea, Pallieter De Smedt, Jacob Heilmann-Clausen, Philippe Janssen, Daniel Kozak, Anders Marell, Martin Mikolas, Bjorn Norden, Radim Matula, Peter Schall, Miroslav Svoboda, Mariana Ujhazyova, Kris Vandekerkhove, Michael Wohlwend, Fotios Xystrakis, Michele Aleffi, Christian Ammer, Frederic Archaux, Thomas Asbeck, Dimitrios Avtzis, Manfred Ayasse, Simonetta Bagella, Rosario Balestrieri, Anna Barbati, Marco Basile, Ariel Bergamini, Giada Bertini, Alessandro Bruno Biscaccianti, Steffen Boch, Janos Boloni, Pierluigi Bombi, Yves Boscardin, Giorgio Brunialti, Hans Henrik Bruun, Francois Buscotbc, David Bille Byriel, Thomas Campagnarob, Alessandro Campanaro, Matthieu Chauvat, Michal Ciach, Marek Ciliak, Luca Cistrone, Joao Manuel Cordeiro Pereira, Rolf Daniel, Bruno De Cinti, Gabriele De Filippo, Wouter Dekoninck, Umberto Di Salvatore, Yann Dumas, Zoltan Elek, Fabrizio Ferretti, Dimitrios Fotakis, Tamas Frank, Julian Frey, Carmen Giancola, Erika Gomoryova, Marion Gosselin, Frederic Gosselin, Martin M. Gossner, Frank Gotmark, Elena Haeler, Aslak Kappel Hansen, Lionel Hertzog, Jenyk Hofmeister, Jan Hosek, Vivian Kvist Johannsen, Mathias Just Justensen, Nathalie Korboulewsky, Bence Kovacs, Ferenc Lakatos, Carlos Miguel Landivar, Luc Lens, Emanuele Lingua, Fabio Lombardi, Frantisek Malis, Luca Marchino, Vitas Marozas, Giorgio Matteucci, Walter Mattioli, Peter Friis Moller, Jorg Mueller, Csaba Nemeth, Gabor Onodi, Francesco Parisi, Thomas Perot, Sandrine Perret, Anna Maria Persiani, Alessia Portaccio, Mario Posillico, Zydrunas Preiksa, Carsten Rahbek, Nolan James Rappa, Sonia Ravera, Antonio Romano, Ferenc Samu, Christoph Scheidegger, Inger Kappel Schmidt, Sebastian Schwegmann, Flavia Sicuriello, Andreea Petronela Spinu, Gavriil Spyroglou, Jonas Stillhard, Eleni Topalidou, Anders P. Tottrup, Karol Ujhazy, Katalin Veres, Kris Verheyen, Wolfgang W. Weissercw, Livia Zapponi, Peter Odor
Summary: The European biodiversity and forest strategies rely on forest sustainable management (SFM) to conserve forest biodiversity. However, current sustainability assessments hardly account for direct biodiversity indicators. We focused on forest multi-taxon biodiversity to gather existing information, identify research gaps, and discuss its research potential.
BIOLOGICAL CONSERVATION
(2023)
Review
Biodiversity Conservation
Laura Zeller, Agnes Foerster, Constanze Keye, Peter Meyer, Christian Roschak, Christian Ammer
Summary: The effects of forest management on species richness and diversity have become important research interests. This review analyzed 85 studies in the temperate region of Europe and found that canopy gaps and structural attributes related to old-growth successional stage were mostly positively correlated with species richness. The findings suggest that these specific structural attributes can be used for further development of biodiversity monitoring concepts and forest management.
ECOLOGICAL INDICATORS
(2023)
Article
Forestry
Alexander Seliger, Christian Ammer, Holger Kreft, Stefan Zerbe
Summary: The goal of forest management in Central Europe is to convert pure and even-aged coniferous stands into more diverse and mixed broad-leaved forests. The conversion was achieved through single-tree selection and resulted in increased structural heterogeneity and tree species diversity. The forest conversion in the Bavarian Spessart mountains was successful in diversifying forest structure and tree species, but the stands are still in a transitional phase.
EUROPEAN JOURNAL OF FOREST RESEARCH
(2023)
Article
Forestry
Hans Pretzsch, Michael Heym, Torben Hilmers, Andres Bravo-Oviedo, Shamim Ahmed, Christian Ammer, Admir Avdagic, Kamil Bielak, Felipe Bravo, Gediminas Brazaitis, Marek Fabrika, Vaclav Hurt, Viktor Kurylyak, Magnus Lof, Maciej Pach, Quentin Ponette, Ricardo Ruiz-Peinado, Dejan Stojanovic, Miroslav Svoboda, Barbara Wolff, Tzvetan Zlatanov, Miren del Rio
Summary: Many studies have found that mixed species stands have higher gross growth compared to monocultures, but little is known about mortality in mixed stands. By evaluating different plots of Scots pine and European beech across Europe, this study found that mixed stands have higher mortality rates and lower net growth compared to monocultures. The study also showed that the mixing proportion of Scots pine decreased over time, indicating a tendency towards demixing due to pine.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Forestry
Dominik Seidel, Christian Ammer
Summary: Managing forests for increased structural complexity and understanding them as 'complex adaptive systems' is important in modern silviculture. However, managed forests are often less complex in structure compared to primary forests due to specific production goals. The reason why natural forests tend to have large aboveground structural complexity remains unanswered. Considering thermodynamic theory in forest ecosystem research can provide insights into why structural complexity is a result of natural selection and beneficial to forests, linking it to productivity and adaptive capacity.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Environmental Sciences
Alexander Seliger, Christian Ammer, Holger Kreft, Stefan Zerbe
Summary: The understorey vegetation of temperate forests plays a crucial role in biodiversity and ecosystem functioning, but it has undergone changes in species diversity and composition due to various factors. The conversion of even-aged coniferous forests into mixed broad-leaved forests is a major objective in sustainable forest management. This study investigated changes in the understorey vegetation of the Bavarian Spessart mountains in Germany after forest conversion, revealing a decrease in soil acidity and a shift towards species associated with broad-leaved forests.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Soil Science
Estela Covre Foltran, Christian Ammer, Norbert Lamersdorf
Summary: An analysis of pure and mixed species stands in Germany showed that pure spruce stands had the lowest base saturation, while beech had the highest values. The impact of Douglas fir on soil chemistry depended on site conditions. Mixed stands had higher soil exchangeable K content and reduced base cation depletion compared to conifer stands.
Article
Ecology
Jonas Glatthorn, Scott Appleby, Niko Balkenhol, Peter Kriegel, Likulunga Emmanuel Likulunga, Jing-Zhong Lu, Dragan Matevski, Andrea Polle, Hannes Riebl, Carmen Alicia Rivera Perez, Stefan Scheu, Alexander Seinsche, Peter Schall, Andreas Schuldt, Severin Wingender, Christian Ammer
Summary: Cultivation of non-native tree species in managed forests has the potential to adapt to climate change, but the impacts on forest associates need to be considered. We found that non-native tree species in pure stands and mixed stands with native tree species have higher species diversity than native species in temperate Northwest Germany. However, the overall diversity of forest-floor-associated biota is not improved by cultivating non-native tree species in mixture with native tree species.
Article
Multidisciplinary Sciences
Kai Boedeker, Claudia Jordan-Fragstein, Torsten Vor, Christian Ammer, Thomas Knoke
Summary: Intensive browsing by ungulates has a significant impact on forests worldwide. The interactions between browsed saplings and their biotic and abiotic environment play a key role in sapling mortality. The study finds that light availability and browsing probability are the most influential factors affecting selectively browsed tree species, and silvicultural management and efficient hunting strategies can mitigate browsing impact.
SCIENTIFIC REPORTS
(2023)
Article
Agronomy
Wenyi Xu, Bo Elberling, Per Lennart Ambus
Summary: The frequency and extent of wildfires in the Arctic have been increasing due to climate change. In this study, researchers conducted experiments in West Greenland to investigate the long-term impacts of climate warming on post-fire carbon dioxide exchange in arctic tundra ecosystems. They found that fire increased soil organic phosphorus concentrations and burned areas remained a net CO2 source five years after the fire. However, with four to five years of summer warming, the burned areas turned into a net CO2 sink.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Yuanhang Yang, Jiabo Yin, Shengyu Kang, Louise J. Slater, Xihui Gu, Aliaksandr Volchak
Summary: This study investigates the impacts of water and heat stress on carbon uptake in China and explores the driving mechanisms of droughts using a machine learning model. The results show that droughts are mostly driven by atmospheric dryness, with precipitation, relative humidity, and temperature playing dominant roles. Water and heat stress have negative impacts on carbon assimilation, and drought occurrence is projected to increase significantly in the future. Improving ecosystem resilience to climate warming is crucial in mitigating the negative effects of droughts on carbon uptake.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Ningbo Cui, Shunsheng Zheng, Shouzheng Jiang, Mingjun Wang, Lu Zhao, Ziling He, Yu Feng, Yaosheng Wang, Daozhi Gong, Chunwei Liu, Rangjian Qiu
Summary: This study proposes a method to partition evapotranspiration (ET) into its components in agroforestry systems. The method is based on water-carbon coupling theory and flux conservation hypothesis. The results show that the partitioned components agree well with measurements from other sensors. The study also finds that atmospheric evaporation demand and vegetation factors greatly influence the components of ET, and increased tree leaf area limits understory grass transpiration.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Xinhao Li, Tianshan Zha, Andrew Black, Xin Jia, Rachhpal S. Jassal, Peng Liu, Yun Tian, Chuan Jin, Ruizhi Yang, Feng Zhang, Haiqun Yu, Jing Xie
Summary: With the rapid increase of urbanization, evapotranspiration (ET) in urban forests has become increasingly important in urban hydrology and climate. However, there is still a large uncertainty regarding the factors that regulate ET in urban areas. This study investigates the temporal variations of ET in an urban forest park in Beijing using the eddy-covariance technique. The results show that daily ET is close to zero during winter but reaches 3-6 mm day-1 in summer. Daily ET increases with vapor pressure deficit (VPD) and soil water content (SWC). Monthly ET increases linearly with normalized difference vegetation index and shows a strong correlation with surface conductance (gs), while exhibiting saturated responses to increasing monthly precipitation (PPT). Annual ET ranges from 326 to 566 mm, and soil water replenishment through PPT from the previous year is responsible for the generally higher monthly ET in spring relative to PPT. Biotic factors and PPT seasonality play essential roles in regulating ET at different scales.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Zhaogang Liu, Zhi Chen, Meng Yang, Tianxiang Hao, Guirui Yu, Xianjin Zhu, Weikang Zhang, Lexin Ma, Xiaojun Dou, Yong Lin, Wenxing Luo, Lang Han, Mingyu Sun, Shiping Chen, Gang Dong, Yanhong Gao, Yanbin Hao, Shicheng Jiang, Yingnian Li, Yuzhe Li, Shaomin Liu, Peili Shi, Junlei Tan, Yakun Tang, Xiaoping Xin, Fawei Zhang, Yangjian Zhang, Liang Zhao, Li Zhou, Zhilin Zhu
Summary: This study investigates the responses of temperate grassland (TG) and alpine grassland (AG) to climate change by studying carbon (C) fluxes across different regions in China. The results reveal that water factors consistently increase C fluxes, while temperature factors have opposite effects on TG and AG. The study enhances our understanding of C sinks and grassland sensitivity to climate change.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Peng Li, Huijie Li, Bingcheng Si, Tao Zhou, Chunhua Zhang, Min Li
Summary: This study mapped the distribution of forest age on the Chinese Loess Plateau using the LandTrendr algorithm. The results show that the LT algorithm is a convenient, efficient, and reliable method for identifying forest age. The findings have important implications for assessing and quantifying biomass and carbon sequestration in afforestation efforts on the Chinese Loess Plateau.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Review
Agronomy
Yean-Uk Kim, Heidi Webber, Samuel G. K. Adiku, Rogerio de S. Noia Junior, Jean-Charles Deswarte, Senthold Asseng, Frank Ewert
Summary: As climate change is expected to increase the intensity and frequency of extreme weather events, it is crucial to assess their impact on cropping systems and explore adaptation options. Process-based crop models (PBCMs) have improved in simulating the impacts of major extreme weather events, but still struggle to reproduce low crop yields under wet conditions. This article provides an overview of the yield-loss mechanisms of excessive rainfall in cereals and the associated modelling approaches, aiming to guide improvements in PBCMs.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Xiaodong Liu, Yingjie Feng, Xinyu Zhao, Zijie Cui, Peiling Liu, Xiuzhi Chen, Qianmei Zhang, Juxiu Liu
Summary: Understanding the impact of climate on litterfall production is crucial for simulating nutrient cycling in forest ecosystems. This study analyzed a 14-year litterfall dataset from two subtropical forests in South China and found that litterfall was mainly influenced by wind speed during the wet season and by temperature during the dry season. These findings have potential significance in improving our understanding of carbon and nutrient cycling in subtropical forest ecosystems under climate change conditions.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Ruonan Chen, Liangyun Liu, Zhunqiao Liu, Xinjie Liu, Jongmin Kim, Hyun Seok Kim, Hojin Lee, Genghong Wu, Chenhui Guo, Lianhong Gu
Summary: Solar-induced chlorophyll fluorescence (SIF) has the potential to estimate gross primary production (GPP), but the quantitative relationship between them is not constant. In this study, a mechanistic model for SIF-based GPP estimation in evergreen needle forests (ENF) was developed, considering the seasonal variation in a key parameter of the model. The GPP estimates from this model were more accurate compared to other benchmark models, especially in extreme conditions.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Jingyi Zhu, Yanzheng Yang, Nan Meng, Ruonan Li, Jinfeng Ma, Hua Zheng
Summary: This study developed a random forest model using climate station and satellite data to generate high-precision precipitation datasets for the Qinghai-Tibet Plateau. By incorporating multisource satellite data, the model achieved a significant enhancement in precipitation accuracy and showed promising results in regions with limited meteorological stations and substantial spatial heterogeneity in precipitation patterns.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Yulin Yan, Youngryel Ryu, Bolun Li, Benjamin Dechant, Sheir Afgen Zaheer, Minseok Kang
Summary: Sustainable rice farming practices are urgently needed to meet increasing food demand, cope with water scarcity, and mitigate climate change. Traditional farming methods that prioritize a single objective have proven to be insufficient, while simultaneously optimizing multiple competing objectives remains less explored. This study optimized farm management to increase rice yield, reduce irrigation water consumption, and tackle the dilemma of reducing GHG emissions. The results suggest that the optimized management can maintain or even increase crop yield, while reducing water demand and GHG emissions by more than 50%.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Sasha D. Hafner, Jesper N. Kamp, Johanna Pedersen
Summary: This study compared micrometeorological and wind tunnel measurements using a semi-empirical model to understand wind tunnel measurement error. The results showed differences in emission estimates between the two methods, but the ALFAM2 model was able to reproduce emission dynamics for both methods when considering differences in mass transfer. The study provides a template for integrating and comparing measurements from different methods, suggesting the use of wind tunnel measurements for model evaluation and parameter estimation.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Wenfang Xu, Wenping Yuan, Donghai Wu, Yao Zhang, Ruoque Shen, Xiaosheng Xia, Philippe Ciais, Juxiu Liu
Summary: In the summer of 2022, China experienced record-breaking heatwaves and droughts, which had a significant impact on plant growth. The study also found that heatwaves were more critical than droughts in limiting vegetation growth.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Jiaqi Guo, Xiaohong Liu, Wensen Ge, Liangju Zhao, Wenjie Fan, Xinyu Zhang, Qiangqiang Lu, Xiaoyu Xing, Zihan Zhou
Summary: Vegetation photosynthetic phenology is an important indicator for understanding the impacts of climate change on terrestrial carbon cycle. This study evaluated and compared the abilities of different spectral indices to model photosynthetic phenology, and found that NIRv and PRI are effective proxies for monitoring photosynthetic phenology.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Arango Ruda Elizabeth, M. Altaf Arain
Summary: Temperate deciduous forests have significant impacts on regional and global water cycles. This study examined the effects of climate change and extreme weather events on the water use and evapotranspiration of a temperate deciduous forest in eastern North America. The results showed that photosynthetically active radiation and air temperature were the primary drivers of evapotranspiration, while vapor pressure deficit regulated water use efficiency. The study also found a changing trend in water use efficiency over the years, influenced by extreme weather conditions.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
