Article
Agronomy
Zhongdian Zhang, Mingbin Huang
Summary: This study investigated the effects of vertical soil moisture heterogeneity on water transport safety in the soil-plant-atmosphere continuum (SPAC), using split-root experiments with different soil types. The results showed that water transport safety in SPAC varied significantly with soil moisture distribution, soil types, and atmospheric evaporative demand. Understanding these factors is crucial for optimizing water resource management and analyzing the functional differences of water storage in various soil depths.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Biodiversity Conservation
Jiayuan Liao, Qiqi Luo, Ang Hu, Wenkai Wan, Dian Tian, Jingwei Ma, Tian Ma, Hao Luo, Sheng Lu
Summary: Research has shown that soil moisture-atmosphere interactions play a significant role in influencing global N2O emissions, affecting the balance of nitrogen flux and the response of ecosystems to environmental changes.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Environmental Sciences
Xiazhen Xi, Xing Yuan
Summary: This study used MODIS data to investigate the impact of soil and atmospheric moisture deficits on carbon and water use in the ecosystem during flash droughts and high temperature conditions in eastern China. The results showed that soil moisture stress had a greater influence on vegetation productivity in humid regions. However, high vapor pressure deficit significantly affected the light use efficiency of vegetation in 55% of the regions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biodiversity Conservation
Yupeng Li, Yaning Chen, Fan Sun, Zhi Li
Summary: The study reveals that there has been noticeable vegetation browning in the Tianshan Mountain region over the past few decades, particularly evident post-1998, indicating a high vulnerability and sensitivity to water deficits.
ECOLOGICAL INDICATORS
(2021)
Article
Forestry
Xianji Yang, Yuan Jiang, Feng Xue, Xinyuan Ding, Minghao Cui, Manyu Dong, Muyi Kang
Summary: This study investigated the impact of environmental stress on the storage dynamics of nonstructural carbohydrates (NSCs) in Larix principis-rupprechtii on Luya Mountain, China. The results showed that temperature was the main environmental factor affecting tree NSCs. Decreasing soil-atmosphere temperature gradient led to increased concentrations of soluble sugars in needles and starch in shoots, stems, and roots.
Article
Environmental Sciences
Drew S. Lyons, Solomon Z. Dobrowski, Zachary A. Holden, Marco P. Maneta, Anna Sala
Summary: Drought stress is a major contributor to global plant mortality, with recent advances in remote sensing allowing for observations of plant water status on a large scale. A new index, nVOD(r), quantifies the difference between night and daytime VOD retrievals to determine plant sensitivity to water supply variations and atmospheric water demand. Vegetation in transitional climate zones between forests and non-forests shows the highest sensitivity to both soil moisture and VPD variations, suggesting they will likely be impacted first by drought stress as the planet warms.
REMOTE SENSING OF ENVIRONMENT
(2021)
Article
Agronomy
Zhenyu Zhang, Yanlian Zhou, Weimin Ju, Jingming Chen, Jingfeng Xiao
Summary: Recent studies have shown that current LUE models generally overestimate GPP during drought years and SM regulates LUE during these years. The effectiveness of concurrent, lagged, and accumulated soil moisture deficit in capturing actual LUE during drought years was compared. Accumulated soil moisture deficit (ASMD) had stronger correlations with LUE and outperformed commonly used water stress scalars.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Review
Environmental Sciences
Yuanyuan Ma, Hu Liu, Yang Yu, Li Guo, Wenzhi Zhao, Omer Yetemen
Summary: This article revisits and analyzes the key role of soil water potential in ecohydrological processes, and explores the development and potential challenges of soil water potential research. By proposing views on focusing on lateral root responses and hormone signaling research, as well as emphasizing the application of soil water potential in controlling plant pathogens and improving resource acquisition efficiency, it provides support for assessing plant vulnerability to drought under current and future climatic conditions.
Article
Geosciences, Multidisciplinary
Dayang Zhao, Zhaoying Zhang, Yongguang Zhang
Summary: In the summer of 2022, a record-breaking compound drought-heatwave event (DH2022) occurred in China. Results show that soil moisture (SM) dominates the decline in forest productivity during DH2022, rather than vapor pressure deficit (VPD). Once SM drops below a certain threshold, forest productivity would decline sharply. The study provides insights into the forest response to extreme compound drought-heatwave events at the ecosystem scale.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Zilin Li, Xiaoyong Bai, Qiu Tan, Cuiwei Zhao, Yangbing Li, Guangjie Luo, Fei Chen, Chaojun Li, Chen Ran, Sirui Zhang, Lian Xiong, Fengjiao Song, Chaochao Du, Biqin Xiao, Yingying Xue, Minkang Long
Summary: Dryness stress can limit vegetation growth and weaken the sustainability of vegetation-based cooling. Soil moisture and atmospheric vapor pressure deficit are two influencing factors, and an increase in the restricted area of dryness stress threatens the sustainability of vegetation cooling effect.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Nivedita Dubey, Subimal Ghosh
Summary: Atmospheric aridity and soil moisture deficit have different impacts on vegetation productivity in India, with soil moisture being the primary limiting factor. The association between vegetation and atmospheric aridity varies across different agroecological regions in India. These findings contribute to our understanding of vegetation dynamics under regional dryness stress and can improve dynamic vegetation model estimates for India in a changing climate.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Agronomy
Xianji Yang, Yuan Jiang, Feng Xue, Xinyuan Ding, Minghao Cui, Manyu Dong, Muyi Kang
Summary: This study investigates the dynamics of nonstructural carbohydrate (NSC) storage in Picea meyeri at different altitudes on Luya Mountain. The results show that NSC concentrations vary with altitude, with the highest levels in the needles and the lowest in the stems. Soil moisture is identified as the major factor influencing NSC dynamics, and root NSC reserves are important for the tree's response to low soil moisture.
AGRICULTURAL AND FOREST METEOROLOGY
(2022)
Article
Biodiversity Conservation
Matthew P. Dannenberg, Dong Yan, Mallory L. Barnes, William K. Smith, Miriam R. Johnston, Russell L. Scott, Joel A. Biederman, John F. Knowles, Xian Wang, Tomer Duman, Marcy E. Litvak, John S. Kimball, A. Park Williams, Yao Zhang
Summary: Earth's ecosystems are facing increasing threats from hot drought, which can have significant impacts on the carbon cycle. Through a natural experiment, it was found that hot drought leads to a significant reduction in gross primary production (GPP), with both meteorological and hydrological factors playing a role. Future increases in air temperature and vapor pressure deficit may lead to more frequent and intense hot droughts, exacerbating the reduction in GPP caused by drought.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Ecology
Andreas H. Schweiger, Telse Zimmermann, Christian Poll, Sven Marhan, Vinzent Leyrer, Bernd J. Berauer
Summary: The lack of comparability among rainfall manipulation studies hinders generalizations in ecological climate change impact research. A common framework for studying ecological drought effects is urgently needed. This study proposes the soil-plant-atmosphere-continuum (SPAC) as a holistic concept of drought in rainfall manipulation experiments, allowing for the reconciliation of experimental drought ecology. The investigation of leaf water potential, along with edaphic and atmospheric drought, is essential for understanding the effect of drought on plants.
Article
Meteorology & Atmospheric Sciences
Eric Rappin, Rezaul Mahmood, Udaysankar Nair, Roger A. Pielke, William Brown, Steve Oncley, Joshua Wurman, Karen Kosiba, Aaron Kaulfus, Chris Phillips, Emilee Lachenmeier, Joseph Santanello, Edward Kim, Patricia Lawston-Parker
Summary: The passage discusses the impacts of irrigated agriculture on temperature and precipitation in the central United States, as well as the Great Plains Irrigation Experiment conducted in southeastern Nebraska. The experiment showed a clear irrigation signal during the peak growing season, affecting surface fluxes, temperature, humidity, and boundary layer dynamics.
BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
(2021)
Article
Ecology
Nathaniel Looker, Justin Martin, Zachary Hoylman, Kelsey Jencso, Jia Hu
Article
Water Resources
Sarah R. Schmitt, Diego A. Riveros-Iregui, Jia Hu
HYDROLOGICAL PROCESSES
(2018)
Article
Environmental Sciences
Zachary H. Hoylman, Kelsey G. Jencso, Jia Hu, Justin T. Martin, Zachary A. Holden, Carl A. Seielstad, Eric M. Rowell
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2018)
Article
Biodiversity Conservation
Justin Martin, Nathaniel Looker, Zachary Hoylman, Kelsey Jencso, Jia Hu
GLOBAL CHANGE BIOLOGY
(2018)
Article
Multidisciplinary Sciences
David M. Barnard, John F. Knowles, Holly R. Barnard, Michael L. Goulden, Jia Hu, Marcy E. Litvak, Noah P. Molotch
SCIENTIFIC REPORTS
(2018)
Correction
Meteorology & Atmospheric Sciences
Sean P. Burns, Jielun Sun, Donald H. Lenschow, Steven P. Oncley, Britton B. Stephens, Chuixiang Yi, Dean E. Anderson, Jia Hu, Russell K. Monson
BOUNDARY-LAYER METEOROLOGY
(2019)
Article
Environmental Sciences
Zachary H. Hoylman, Kelsey G. Jencso, Jia Hu, Zachary A. Holden, Justin T. Martin, W. Payton Gardner
WATER RESOURCES RESEARCH
(2019)
Article
Ecology
Yuriko Yano, Claire Qubain, Zach Holyman, Kelsey Jencso, Jia Hu
Article
Ecology
Ravindra Dwivedi, Christopher Eastoe, John F. Knowles, William E. Wright, Lejon Hamann, Rebecca Minor, Bhaskar Mitra, Tom Meixner, Jennifer McIntosh, Paul A. Ty Ferre, Christopher Castro, Gou-Yue Niu, Greg A. Barron-Gafford, Nate Abramson, Shirley A. Papuga, Michael Stanley, Jia Hu, Jon Chorover
Article
Forestry
David Laufenberg, David Thoma, Andrew Hansen, Jia Hu
Article
Ecology
Tim Clute, Justin Martin, Nate Looker, Jia Hu
Summary: This study examined the hydraulic traits of three conifers in the Northern Rockies to understand the mechanisms allowing different plant species to co-exist across a watershed. The study found that the hydraulic traits of trees did not necessarily correspond to their specific locations in the landscape, and that a combination of physiological and morphological traits likely allowed trees to persist across a broader hydroclimatic gradient.
Article
Ecology
Claire A. Qubain, Yuriko Yano, Jia Hu
Summary: This study explored nitrogen dynamics within mature Douglas-fir trees and found that the majority of nitrogen used for new growth originated from the soils rather than aboveground storage. This suggests a tight coupling between soil available nitrogen and nitrogen uptake in the ecosystem.
Article
Ecology
Paul Szejner, Soumaya Belmecheri, Flurin Babst, William E. Wright, David C. Frank, Jia Hu, Russell K. Monson
Summary: Recent evidence has shown the emergence of a megadrought in southwestern North America since 2000. Trees near their arid range limit exhibit unique sensitivity to pre-megadrought conditions, particularly in key seasonal months such as winter and summer. This physiological sensitivity could potentially aid in the early detection of long-lasting droughts.
Article
Environmental Sciences
Kathrin Kuehnhammer, Joost van Haren, Angelika Kuebert, Kinzie Bailey, Maren Dubbert, Jia Hu, S. Nemiah Ladd, Laura K. Meredith, Christiane Werner, Matthias Beyer
Summary: Deep rooting is a crucial drought-mitigation trait that plays a significant role in the water cycling of ecosystems. However, there is limited knowledge regarding the quantitative water use of deep roots and the dynamic shifts of water uptake depths with changing ambient conditions, especially for tropical trees. In this study, researchers conducted a drought, deep soil water labeling, and re-wetting experiment in the Biosphere 2 Tropical Rainforest. They found that deep soil serves as an essential water source for tropical trees, mitigating the negative impacts of drought caused by climate change. The water uptake largely depends on precipitation input.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)