Article
Agronomy
Junjun Nie, Lin Sun, Lijie Zhan, Xue Li, Wenting Hou, Yanjun Zhang, Weijiang Li, Dongmei Zhang, Zhengpeng Cui, Zhenhuai Li, Shizhen Xu, Jianlong Dai, Hezhong Dong
Summary: This study aimed to determine how terminal removal at first square affects vegetative branching and yield under different plant densities. The results showed that, at low plant density, terminal removal at first square (TRS) increased seedcotton yield and biological yield; while at high plant density, TRS decreased seedcotton yield and harvest index, but increased biological yield. TRS increased dry matter partitioning to vegetative organs but decreased partitioning to reproductive organs compared to other pruning modes.
FIELD CROPS RESEARCH
(2023)
Article
Multidisciplinary Sciences
Sarah Ponte, Nancy F. Sonti, Tuana H. Phillips, Mitchell A. Pavao-Zuckerman
Summary: The hydrological functioning of urban trees plays a crucial role in reducing stormwater runoff, mitigating flood risk, and improving water quality in developed areas. Research showed that single trees had significantly higher transpiration rates compared to closed canopy trees and tree clusters in different management contexts. Additionally, single trees were found to be more responsive to environmental drivers such as vapor pressure deficit.
SCIENTIFIC REPORTS
(2021)
Article
Biodiversity Conservation
Liyang Liu, Xiuzhi Chen, Philippe Ciais, Wenping Yuan, Fabienne Maignan, Jin Wu, Shilong Piao, Ying-Ping Wang, Jean-Pierre Wigneron, Lei Fan, Pierre Gentine, Xueqin Yang, Fanxi Gong, Hui Liu, Chen Wang, Xuli Tang, Hui Yang, Qing Ye, Bin He, Jiali Shang, Yongxian Su
Summary: Research shows that the impact of drought on forest canopies varies with canopy height, with taller tropical forests experiencing greater reductions in Ku-VOD during drought and larger increases in non-drought periods. Taller forests are more vulnerable to drought stress due to smaller xylem-transport safety margins. The variation in hydraulic transport based on canopy height should be considered in ecosystem models to improve predictions of tropical forest responses to drought.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Forestry
Peter Biber, Hans Pretzsch
Summary: This study used long-term experimental data from mixed mountain forests in Southern Germany and found that tree growth near canopy gaps was influenced, with growth rates exceeding the range covered by the classic spatial competition index. The study also revealed that the effects of gap exposure on tree growth lasted for a longer period of time.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Environmental Sciences
Ying Liu, Tor Oiamo, Daniel Rainham, Hong Chen, Marianne Hatzopoulou, Jeffrey R. Brook, Hugh Davies, Sophie Goudreau, Audrey Smargiassi
Summary: This study combined a traffic propagation model and random forests machine learning algorithm to map environmental noise levels on Montreal Island. The hybrid approach improved accuracy by addressing the complexity of environmental conditions and noise propagation relationships. By using deterministic and stochastic models, accurate total environmental noise estimates were provided for large geographic areas.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Shuwen Liu, Zhengbing Yan, Zhihui Wang, Shawn Serbin, Marco Visser, Yuan Zeng, Youngryel Ryu, Yanjun Su, Zhengfei Guo, Guangqin Song, Qianhan Wu, He Zhang, K. H. Cheng, Jinlong Dong, Billy Chi Hang Hau, Ping Zhao, Xi Yang, Lingli Liu, Alistair Rogers, Jin Wu
Summary: Accurate understanding of the variability in foliar physiological traits across landscapes is critical to improve terrestrial biosphere models. Imaging spectroscopy can characterize foliar biochemical and morphological traits at the canopy scale, but limited evidence exists for retrieving canopy photosynthetic capacity. This study collected imaging spectroscopy data from an Unoccupied Aerial System (UAS) platform over two forest sites in China and developed spectral models to estimate key foliar traits at the tree-crown scale. The results demonstrate the potential of UAS-based imaging spectroscopy for characterizing foliar physiological traits and highlight the influence of canopy structure on the spectra-trait relationships.
REMOTE SENSING OF ENVIRONMENT
(2023)
Article
Geography, Physical
Kai Cheng, Yanjun Su, Hongcan Guan, Shengli Tao, Yu Ren, Tianyu Hu, Keping Ma, Yanhong Tang, Qinghua Guo
Summary: This study used multi-source remote sensing images and crowdsourced samples to create the first high-resolution map of China's planted forests. The findings show that China's planted forests account for 31.30% of the world's total planted forests, with the majority located in the Eastern, Center-South, and Southwestern regions. The analysis of image features revealed that temporal features are crucial for identifying forests in East and Center-South China, while structural and textural features are more useful for locating forests in North and Northeast China.
ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING
(2023)
Article
Environmental Sciences
Xiaoqiang Liu, Yanjun Su, Tianyu Hu, Qiuli Yang, Bingbing Liu, Yufei Deng, Hao Tang, Zhiyao Tang, Jingyun Fang, Qinghua Guo
Summary: This study developed a novel neural network guided interpolation (NNGI) method to map forest canopy height using integrated spaceborne lidar data and optical images. The results showed high mapping accuracy, demonstrating the feasibility of the proposed method for monitoring forest canopy height at national to global scales and advancing our understanding of forest ecosystem processes and carbon storage.
REMOTE SENSING OF ENVIRONMENT
(2022)
Article
Biodiversity Conservation
Nanghyun Cho, Sinkyu Kang, Bora Lee, Casimir Agossou, Jihye Lee, Jong-Hwan Lim, Eunsook Kim
Summary: This study proposed a satellite-based approach to map canopy-onset thermal traits in temperate forests and found distinct geographic patterns of GDD and CR, with low inter-annual variations. The patterns and temperature dependency of thermal parameters are relevant to species-level thermal acclimation and plant composition changes with temperature.
ECOLOGICAL INDICATORS
(2021)
Review
Plant Sciences
I. Touhami, T. Rzigui, L. Zribi, A. Ennajah, S. Dhahri, H. Aouinti, M. T. Elaieb, S. Fkiri, H. Ghazghazi, A. Khorchani, K. Candelier, A. Khaldi, M. L. Khouja
Summary: According to IPCC's sixth assessment report, global climate change is now indisputable. Tunisia, like other countries, has experienced the impacts of climate change, including rising temperatures, heatwaves, and altered precipitation patterns. Drought is a primary factor contributing to the decline and dieback of trees, making them more vulnerable to pests and diseases. The study conducted in this research aims to assess the effects of climate change on forest ecosystems in Tunisia, considering natural disturbances and the adaptability of forest species. The findings indicate a negative trend in drought variability in Tunisian forests, and the loss of tree cover due to fires in 2021 further emphasizes the need for adaptation strategies.
Article
Forestry
Jose Manuel Alvarez, Sonia Maria Rodriguez, Francisco Fuente-Maqueda, Isabel Feito, Ricardo Javier Ordas, Candela Cuesta
Summary: This study describes a simple methodology for identifying candidate genes in Pinus pinaster by transferring existing knowledge from model species and focusing on plant growth factors. Through comparative analysis and domain conservation assessment, key genes associated with growth were identified in P. pinaster. The expression levels of these candidate genes were validated in P. pinaster trees with contrasting growth patterns. This study lays the foundation for further exploration of genes involved in the growth and branching processes of P. pinaster.
Article
Ecology
Christine R. Rollinson, M. Ross Alexander, Alex W. Dye, David J. P. Moore, Neil Pederson, Valerie Trouet
Summary: The study analyzed growth information from 1,084 trees across eight sites in the northeastern United States, finding significant and nonlinear differences in climate sensitivity for four common tree species based on canopy position. Understory trees showed stronger reductions in growth at high temperatures and varied shifts in precipitation response compared to overstory trees, contradicting previous assumptions.
Article
Biodiversity Conservation
Brigitte Rohner, Simpal Kumar, Katharina Liechti, Arthur Gessler, Marco Ferretti
Summary: The study investigated the impact of a severe 2018 summer drought on beech trees in the Swiss National Forest Inventory, finding that affected trees suffered significant losses in growth and carbon sequestration, which partially recovered in 2019. Since the standard forest health assessment methods were unable to capture these effects, the authors suggest opportunities for adapting the assessment design to better reflect the impacts of climate change.
ECOLOGICAL INDICATORS
(2021)
Article
Environmental Sciences
Vit Kaspar, Lucia Hederova, Martin Macek, Jana Mullerova, Jiri Prosek, Peter Surovy, Jan Wild, Martin Kopecky
Summary: Canopy variables obtained from unmanned aerial systems and LiDAR can be used for forest microclimate modeling, with UAS equipped with inexpensive optical cameras providing high spatial resolution microclimatic data for biologically relevant predictions of species responses to climate change.
REMOTE SENSING OF ENVIRONMENT
(2021)
Article
Biochemistry & Molecular Biology
Rajesh Kumar Singh, Rishikesh P. Bhalerao, Jay P. Maurya
Summary: Long-lived perennial plants optimize their shoot architecture by protecting their apical and lateral meristematic tissues in response to seasonal cues, involving transcriptional, translational, and metabolic changes regulated by multiple pathways. Recent studies have revealed the recruitment of these pathways for seasonal adaptation and regulation of shoot architecture in perennials.
Article
Water Resources
Josep Padulles Cubino, James Barrie Kirkpatrick, Josep Vila Subiros
URBAN WATER JOURNAL
(2017)
Article
Environmental Sciences
Amelia E. Fowles, Rick D. Stuart-Smith, Nicole A. Hill, Russell J. Thomson, Elisabeth M. A. Strain, Timothy J. Alexander, James Kirkpatrick, Graham J. Edgar
ENVIRONMENTAL POLLUTION
(2018)
Article
Ecology
Jamie B. Kirkpatrick, Aidan Davison
LANDSCAPE AND URBAN PLANNING
(2018)
Article
Environmental Sciences
Vishnu Prahalad, Jamie B. Kirkpatrick
AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
(2019)
Article
Ecology
James Kirkpatrick, Louise Gilfedder, Fred Duncan, Mark Wapstra
Article
Environmental Sciences
Shirisa Timilsina, Jagannath Aryal, Jamie B. Kirkpatrick
Article
Ecology
Busola Christianah Adedokun, James Barrie Kirkpatrick, Melinda Therese McHenry
Summary: Recreational fishers forming paths to access wilderness waterbodies in Australia has not been well documented. This study found that paths parallel to waterbodies experience more human traffic than orthogonal paths, with path width greater on parallel paths. The presence of paths may have a conservation benefit in terms of maintaining rare plant communities.
ECOLOGICAL MANAGEMENT & RESTORATION
(2022)
Article
Geography
Jamie B. Kirkpatrick
Summary: The isolation effects on plant species distributions in fragmented forests appear to be weak over short time scales but strong over long geological eras. The study focused on the effects of intermediate periods of isolation on plant species occurrence and composition using Bass Strait and other disjunctions in Eucalyptus regnans forests. The results showed minimal isolation effects from Bass Strait but a lesser compositional effect of disjunctions within land masses than between land masses.
GEOGRAPHICAL RESEARCH
(2023)
Article
Plant Sciences
Nicholas B. Fitzgerald, Jamie B. Kirkpatrick, Catherine R. Dickson, Laura K. Williams, Alexander J. Fergus, Jennie Whinam
Summary: This study examines the use of species distribution models to predict plant species assemblages in a subantarctic environment. It finds that modeling based on core range produces more accurate vegetation patterns compared to presence or absence modeling, and identifies the most influential predictor variables for each species.
AUSTRALIAN JOURNAL OF BOTANY
(2022)
Article
Geography
Busola Christianah Adedokun, Melinda Therese McHenry, James Barrie Kirkpatrick
Summary: Flyfishers in the Tasmanian Wilderness World Heritage Area are motivated by a love of nature and desire for challenge, but they also recognize the environmental and social problems caused by fishing activities and are willing to take action to mitigate these impacts.
GEOGRAPHICAL RESEARCH
(2023)
Article
Plant Sciences
Zimeng Liu, Jamie B. Kirkpatrick
Summary: Variation in tree death in eucalypt forests across environmental gradients was analyzed. It was found that tree mortality has increased as the climate has become warmer, drier, and windier. Factors such as elevation, fire history, aspect, soil type, and vegetation type were found to be significant predictors of tree death.
AUSTRALIAN JOURNAL OF BOTANY
(2023)
Article
Plant Sciences
J. B. Kirkpatrick, N. Gibson, N. Fitzgerald
Summary: The study found that in stable mosaic bolster heath, there is cyclic succession of species with little evidence of long-term directional change, driven by unclear mechanisms. Vegetation loss and recovery processes were rapid.
AUSTRALIAN JOURNAL OF BOTANY
(2021)
Article
Plant Sciences
Yanti Winoto-Lewin, Jamie B. Kirkpatrick
AUSTRALIAN JOURNAL OF BOTANY
(2020)
Article
Hospitality, Leisure, Sport & Tourism
Anne Hardy, Jamie B. Kirkpatrick
JOURNAL OF OUTDOOR RECREATION AND TOURISM-RESEARCH PLANNING AND MANAGEMENT
(2017)
Article
Plant Sciences
Jamie B. Kirkpatrick, Manuel Nunez, Kerry L. Bridle, Jared Parry, Neil Gibson
AUSTRALIAN JOURNAL OF BOTANY
(2017)