Article
Meteorology & Atmospheric Sciences
Ercan Yesilirmak
Summary: By investigating temperature-based agroclimatic indices in western Anatolia, Turkey, it was found that southern low-elevation stations have the lowest frequency, intensity, and duration of frost events, while northern high-elevation stations have the opposite characteristics. Trend analysis revealed decreasing trends in frost events, earlier start of growing season, later end of growing season, longer growing season length, and increasing trends in growing degree-day and heat stress indices.
THEORETICAL AND APPLIED CLIMATOLOGY
(2022)
Article
Agronomy
Thomas Awio, Kalimuthu Senthilkumar, Christian O. Dimkpa, George William Otim-Nape, Paul C. Struik, Tjeerd Jan Stomph
Summary: Increasing productivity per unit area is crucial for meeting cereal demand in sub-Saharan Africa. This study evaluated the contribution of recommended agronomic practices (RAP) and fertilization on closing the yield gap. Results showed that RAP and farmer-selected best practices significantly increased grain yield, while NPK fertilization further enhanced the yield. Different agronomic practices have varying effects on reducing the yield gap and need to be considered in terms of cost and fertilizer prices.
Article
Agronomy
Louis Kouadio, Vivekananda M. Byrareddy, Alidou Sawadogo, Nathaniel K. Newlands
Summary: This study evaluated the accuracy of coffee yield forecasts using statistical models in major coffee-producing provinces in Vietnam. The models performed reasonably well, with stable errors for forecasts leading up to harvest. The flexibility and scalability of the forecasting system suggest potential for application to a larger number of coffee farms in the region.
AGRICULTURAL AND FOREST METEOROLOGY
(2021)
Article
Meteorology & Atmospheric Sciences
Richard Y. K. Agyeman, Fei Huo, Zhenhua Li, Yanping Li
Summary: This study assessed the potential changes in agroclimatic indices in western Canada through simulations of current and future climates, finding that rising temperatures will significantly impact growing degree-days and frost days in southern Alberta and Saskatchewan. While favoring regional crop production, global warming also poses risks by modifying heat accumulations and water availability, leading to increased plant heat stress and exacerbating water stress on the Canadian Prairies.
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
(2021)
Article
Agronomy
Meijian Yang, Guiling Wang, Shu Wu, Paul Block, Rehenuma Lazin, Sarah Alexander, Jonathan Lala, Muhammad Rezaul Haider, Zoi Dokou, Ezana Amdework Atsbeha, Marika Koukoula, Xinyi Shen, Malaquias Pena, Efthymios Nikolopoulos, Amvrossios Bagtzoglou, Emmanouil Anagnostou
Summary: In this study, an analog approach for preseason crop yield prediction is developed and tested. The approach is based on antecedent precipitation and planting time soil moisture content indices. The models constructed were accurate and easy to implement, and they showed potential for informing farmers' crop choices.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Agronomy
Zemin Zhang, Changhe Lu
Summary: In recent years, there has been a decline in China's crop production growth rate, leading to concerns over whether grain yields have reached their potential. A study conducted in the North China Plain (NCP) used the WOFOST model to simulate the potential yield of irrigated maize crops. The study found that the average potential yield in the region decreased by 37.6 kg ha(-1) per year from 1960 to 2017, with an annual maize yield gap of 29.0%-51.3% during 1998-2017 in the NCP.
FOOD AND ENERGY SECURITY
(2023)
Article
Geosciences, Multidisciplinary
Rui Guo, Alberto Montanari
Summary: Simulations of daily rainfall produced by 13 climate models for the period 1850-2100 in Bologna were compared with historical rainfall data observed from 1850 to 2014. The analysis focused on monthly and annual rainfall, seasonality, and drought events to gather information about future water resource availability. The results indicate that historical data analysis provides more cautious predictions for long-term meteorological droughts compared to climate model simulations, highlighting the importance of integrating information.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2023)
Article
Food Science & Technology
Corey Lesk, Ethan Coffel, Jonathan Winter, Deepak Ray, Jakob Zscheischler, Sonia Seneviratne, Radley Horton
Summary: Climate change is projected to modify temperature-moisture couplings and potentially worsen the impacts of warming on key global crops. Rising air temperatures pose a significant risk to global crop production, with the sensitivity of crops to heat depending on the strength of temperature-moisture couplings in the climate system. However, the impact of these changes on crop yields is highly uncertain in some regions, highlighting the need for robust adaptation strategies to address the underappreciated risk to food production from climate change.
Article
Biodiversity Conservation
Mohammad Hadi Ahmad, Ahmed Abubakar, Mohd Yusoff Ishak, Samir Shehu Danhassan, Zhang Jiahua, Juha M. Alatalo
Summary: Climate change has significant impacts on vegetation and livelihoods, particularly in dryland areas. This study uses remote sensing and GIS analysis to simulate the effects of temperature and precipitation on vegetation dynamics in Katsina State, Nigeria. The results demonstrate increasing temperatures, decreasing precipitation, and a more adverse trend under the RCP8.5 scenario.
ECOLOGICAL INDICATORS
(2023)
Article
Meteorology & Atmospheric Sciences
Lucas Eduardo de Oliveira Aparecido, Joao Antonio Lorencone, Pedro Antonio Lorencone, Guilherme Botega Torsoni, Rafael Fausto Lima, Jose Reinaldo dade Silva CabralMoraes
Summary: Climate has a direct and indirect impact on agriculture, particularly on coffee yield. This study used regression models and meteorological data to predict the yield of Coffea arabica in Parana, Brazil. The research found that maximum air temperature is the most influential climate element on coffee plants during fruit formation. A multiple linear regression model was developed to forecast coffee yield 2 to 3 months before harvest.
THEORETICAL AND APPLIED CLIMATOLOGY
(2022)
Article
Geosciences, Multidisciplinary
David J. Nash, George C. D. Adamson, Linden Ashcroft, Martin Bauch, Chantal Camenisch, Dagomar Degroot, Joelle Gergis, Adrian Jusopovic, Thomas Labbe, Kuan-Hui Elaine Lin, Sharon D. Nicholson, Qing Pei, Maria del Rosario Prieto, Ursula Rack, Facundo Rojas, Sam White
Summary: Narrative evidence within historical documents and inscriptions serves as a valuable record of climate variability, with the common approach of generating ordinal-scale climate indices to convert such qualitative information. There is considerable variability in the types of phenomena reconstructed using an index approach, as well as in the practices of index development across different regions worldwide.
CLIMATE OF THE PAST
(2021)
Article
Multidisciplinary Sciences
Virgilio A. Bento, Ana Russo, Emanuel Dutra, Andreia F. S. Ribeiro, Celia M. Gouveia, Ricardo M. Trigo
Summary: This study aims to assess the accuracy of seasonal forecast models in predicting wheat and barley yields in Spain. The results show that the forecasts have better accuracy in the later part of the season, and using the SEAS5 forecast model can provide higher accuracy compared to persistence forecasts.
SCIENTIFIC REPORTS
(2022)
Article
Agronomy
Hai Nguyen, Allen Thompson, Christine Costello
Summary: The trend of drought-induced yield losses in U.S. agriculture has been increasing despite financial investments and technological development. Evaluating drought impacts on crop production is crucial as climate change worsens drought conditions. This study assessed the effectiveness of modified Standardized Precipitation Indices (SPIs) and Standardized Precipitation Evapotranspiration Index (SPEI) in evaluating drought impacts on maize and soybean yields in the southeastern U.S. Results showed that the modified SPI can be as effective as SPEI in assessing drought impacts. Drought events during critical growth stages significantly affected yield variability, and irrigation reduced the sensitivity to drought.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Environmental Sciences
David C. Lafferty, Ryan L. Sriver, Iman Haqiqi, Thomas W. Hertel, Klaus Keller, Robert E. Nicholas
Summary: A study compared different climate models and found that CMIP5 models overestimated historical yield variability, while bias-corrected and downscaled models underestimated weather-induced yield declines. There are significant differences in projected yields and other metrics throughout this century, leading to modeling choices that require balancing trade-offs in resolution, historical accuracy, and projection confidence.
COMMUNICATIONS EARTH & ENVIRONMENT
(2021)
Article
Environmental Sciences
Krishna Prasad Sigdel, Narayan Prasad Ghimire, Bhopal Pandeya, Binod Dawadi
Summary: This study aims to understand the trend and changes in precipitation and temperature in the Gandaki River Basin (GRB), Nepal, particularly in the Himalayan region. The research findings show an increasing trend in precipitation and temperature, with the highest increment in monsoon season and winter season. Wet extremes are projected to increase, while dry spells are expected to decline in the distant future. The increase in temperature trend leads to a decrease in cold related temperature extremes and an increase in warm related extremes. Large-scale ocean-atmospheric circulation patterns were found to influence the changes in precipitation and temperature extremes over GRB. The study’s results provide valuable insights into the implications of historical and future changes in precipitation and temperature in the GRB.
Review
Plant Sciences
Jerry L. Hatfield, Christian Dold
FRONTIERS IN PLANT SCIENCE
(2019)
Article
Agronomy
Christian Dold, Joshua Heitman, Gill Giese, Adam Howard, John Havlin, Tom Sauer
Article
Environmental Sciences
Troy S. Magney, Christian Frankenberg, Philipp Kohler, Gretchen North, Thomas S. Davis, Christian Dold, Debsunder Dutta, Joshua B. Fisher, Katja Grossmann, Alexis Harrington, Jerry Hatfield, Jochen Stutz, Ying Sun, Albert Porcar-Castell
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2019)
Article
Soil Science
C. Dold, Andrew L. Thomas, A. J. Ashworth, D. Philipp, D. K. Brauer, T. J. Sauer
NUTRIENT CYCLING IN AGROECOSYSTEMS
(2019)
Article
Environmental Sciences
Christian Dold, Jerry L. Hatfield, John H. Prueger, Tom B. Moorman, Tom J. Sauer, Michael H. Cosh, Darren T. Drewry, Ken M. Wacha
Article
Agronomy
Andrew L. Thomas, Robert Kallenbach, Thomas J. Sauer, David K. Brauer, David M. Burner, Mark Coggeshall, Christian Dold, Wendi Rogers, Sougata Bardhan, Shibu Jose
AGROFORESTRY SYSTEMS
(2020)
Review
Agronomy
Peter L. O'Brien, Jerry L. Hatfield, Christian Dold, Erica J. Kistner-Thomas, Kenneth M. Wacha
Article
Geosciences, Multidisciplinary
Liyin He, Troy Magney, Debsunder Dutta, Yi Yin, Philipp Kohler, Katja Grossmann, Jochen Stutz, Christian Dold, Jerry Hatfield, Kaiyu Guan, Bin Peng, Christian Frankenberg
GEOPHYSICAL RESEARCH LETTERS
(2020)
Correction
Soil Science
C. Z. Dold, Andrew L. Thomas, A. J. Ashworth, D. Philipp, D. K. Brauer, T. J. Sauer
NUTRIENT CYCLING IN AGROECOSYSTEMS
(2020)
Article
Environmental Sciences
C. Dold, K. M. Wacha, T. J. Sauer, J. L. Hatfield, J. H. Prueger
Summary: This study conducted a long-term investigation on soil carbon and nitrogen changes in a corn-soybean rotation field in central Iowa, showing a decreasing trend in soil carbon and nitrogen content. The findings suggest that conventional corn-soybean production may have adverse effects on regional carbon and nitrogen dynamics in the Midwestern United States.
GLOBAL BIOGEOCHEMICAL CYCLES
(2021)
Article
Environmental Sciences
Nadine Mengis, Aram Kalhori, Sonja Simon, Carina Harpprecht, Lars Baetcke, Enric Prats-Salvado, Cornelia Schmidt-Hattenberger, Angela Stevenson, Christian Dold, Juliane Zohbi, Malgorzata Borchers, Daniela Thraen, Klaas Korte, Erik Gawel, Tobias Dolch, Dominik Hess, Christopher Yeates, Terese Thoni, Till Markus, Eva Schill, Mengzhu Xiao, Fiona Koehnke, Andreas Oschlies, Johannes Foerster, Knut Goerl, Martin Dornheim, Torsten Brinkmann, Silke Beck, David Bruhn, Zhan Li, Bettina Steuri, Michael Herbst, Torsten Sachs, Nathalie Monnerie, Thomas Pregger, Daniela Jacob, Roland Dittmeyer
Summary: This study envisions a net-zero Germany by 2050 by combining energy-system modeling with an analysis of carbon circularity and carbon dioxide removal potentials. It analyzes how Germany achieved a balance between anthropogenic CO2 sources and sinks, with a focus on full decarbonization and zero emissions by 2050 through three key strategies: avoiding, reducing, and removing emissions. This collaborative work involves interdisciplinary scientists from the Helmholtz Climate Initiative HI-CAM's Net-Zero-2050 cluster.
Article
Environmental Sciences
Malgorzata Borchers, Daniela Thraen, Yaxuan Chi, Nicolaus Dahmen, Roland Dittmeyer, Tobias Dolch, Christian Dold, Johannes Foerster, Michael Herbst, Dominik Hess, Aram Kalhori, Ketil Koop-Jakobsen, Zhan Li, Nadine Mengis, Thorsten B. H. Reusch, Imke Rhoden, Torsten Sachs, Cornelia Schmidt-Hattenberger, Angela Stevenson, Terese Thoni, Jiajun Wu, Christopher Yeates
Summary: In its latest assessment report, the IPCC emphasizes the importance of carbon dioxide removal (CDR) to achieve net zero carbon dioxide or greenhouse gas emissions. The potential and feasibility of CDR measures depend on specific conditions, such as site characteristics and resource availability. This study selected 13 CDR concepts and estimated their CO2 removal potentials in 2050. Northern Germany appears to be a preferable area for deployment, but successful implementation requires further socio-economic analysis and policy incentives.
FRONTIERS IN CLIMATE
(2022)
Article
Agronomy
Kenneth M. Wacha, Jerry L. Hatfield, Peter L. O'Brien, Christian Dold
Summary: This study conducted a randomized complete block design experiment in a growth chamber to evaluate the short-term impact of N amendment sources on CO2 fluxes, aggregate stability, and aboveground plant biomass. Results showed that organic N sources can increase soil biological activity and aggregation processes, indicating an increased capacity for several soil functions even over a short-term study.
AGROSYSTEMS GEOSCIENCES & ENVIRONMENT
(2021)
Review
Engineering, Multidisciplinary
Jerry L. Hatfield, John H. Prueger, Thomas J. Sauer, Christian Dold, Peter O'Brien, Ken Wacha
Article
Agriculture, Multidisciplinary
C. Dold, J. L. Hatfield, T. J. Sauer, C. Cambardella, K. M. Wacha
AGRICULTURAL & ENVIRONMENTAL LETTERS
(2018)