Results 31 to 40 of about 912,350 (302)

Initial soil moisture conditions dominate variation in event-scale propagation time from meteorological to agricultural drought

Agricultural Water Management
Agricultural drought, typically triggered by meteorological drought, poses a significant threat to crop production and regional water resources. Understanding the propagation from meteorological to agricultural drought is therefore crucial for improving ...
Zhengguang Xu, Bo Jiang, Xiao Guo, Zhiyong Wu, Siqi Fan   +4 more
doaj   +1 more source

Study on the propagation law of meteorological drought to hydrological drought under variable time Scale: An example from the Yellow River Water Supply Area in Henan

Ecological Indicators, 2023
To study the propagation law of meteorological droughts to hydrological droughts under variable time scales, and to reveal the synchronisation gap and lag time of hydrological droughts compared to meteorological droughts, and the lag degree of ...
Fang Wan, Fei Zhang, Yu Wang, Shaoming Peng, Xiaokang Zheng   +4 more
doaj   +1 more source

An Artificially Selected Cytokinin‐Pathway Transcription Factor Balances Soybean Yield and Pathogen Resistance

Advanced Science, EarlyView.
A cytokinin pathway transcription factor, RR2b, was artificially selected during soybean domestication and improvement based on its differential transcriptional activity, which correlates with ATT repeat polymorphisms in its promoter. RR2b balances yield and defense by fine‐tuning its expression level and offers a promising target for decoupling trade ...
Qun Ma, Yaqing Chen, Yiwen Gao, Xueting Hu, Qun Yang, Yucheng Liu, Peiyong Xin, Jijun Yan, Jinfang Chu, Lei Li, Zhixi Tian, Bo Ren   +11 more
wiley   +1 more source

Dynamic analysis of drought propagation in the context of climate change and watershed characterization: a quantitative study based on GAMLSS and Copula models [PDF]

Natural Hazards and Earth System Sciences
Investigating the processes governing drought propagation under a changing environment is essential for advancing drought early warning and reducing socio-economic risks.
M. Li, M. Li, Z. Feng, M. Zhang, L. Shi, Y. Yao   +5 more
doaj   +1 more source

Dynamics of hydrological droughts propagation in mountainous catchments

Miscellanea Geographica, 2022
Abstract In the study, hydrological drought was identified assuming that the occurrence of river low-flow is a symptom of drought, and is also a good estimator of its progress. The research was conducted in the upper Dunajec river catchment, for which a series of daily discharges from 20 gauging stations during the period 1989–2018 ...
Malwina Kozek, Edmund Tomaszewski
openaire   +2 more sources

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

Advanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais, S. Peng, J. Chang, F. Li, Q. Zhu, K. Yuan, G. Hugelius, H. Li, Y. Cai, F. Chevallier, K. Tibrewal, E. A. Kort, K. Arndt, J. Watts, B. Buma, N. Besic, P. I. Palmer, H. Cadillo‐Quiroz, E. Euskirchen, M. J. Gondwe, A. Hoyt, R. Jackson, S. Malone, D. Monteverde, S. Natali, M. Ramonet, C. Rey‐Sanchez, L. B. Sagang, E. A. G. Schuur, R. Vargas, R. Varner, Z. Zhang, B. Poulter   +32 more
wiley   +1 more source

Attribution mechanism of drought propagation time with changes in climate and underlying surface

Journal of Hydrology: Regional Studies
Study region: Thirteen catchment regions of the Yellow River basin, located in northern China. Study focus: Drought is a natural phenomenon characterized by a water deficiency that impacts various aspects of the hydrological cycle.
Kai Zhou, Yimin Wang, Jianxia Chang
doaj   +1 more source

Groundwater Rise Sustains the World's Largest Alpine Water System Under Global Warming

Advanced Science, EarlyView.
Shallow groundwater depth (SGWD) across the non‐permafrost plains of the Qinghai–Xizang Plateau decreased at averagely 0.02 m year−1, adding 31.44 Gt of freshwater storage from 2000 to 2020 and sustaining ∼53 500 km2 of alpine ecosystems. A vadose‐zone capacity of 426.6 Gt reveals these aquifers as promising reservoirs, highlighting groundwater's ...
Jianqing Du, Zhixiang Niu, Yanfen Wang, Shirui Zhou, Youqing Yang, Xiang Wei, Haishan Niu, Yitao Zhang, Anquan Xia, Yali Liu, Yanbin Hao, Kai Xue, Bingfang Wu, Xinquan Zhao, Tandong Yao, Yiyu Chen   +15 more
wiley   +1 more source

The Mitogen‐Activated Protein Kinase GhNTF3 Modulates the Arbuscular Mycorrhizal Symbiosis‐Immunity Trade‐Off in Cotton by Regulating Salicylic Acid Biosynthesis

Advanced Science, EarlyView.
AM symbiosis induces GhWAK13 to promote fungal colonization. GhNTF3 negatively regulates symbiosis by promoting SA biosynthesis. GhWAK13 sequesters GhNTF3 at the membrane, limiting its nuclear translocation and relieving SA‐mediated suppression. Under Verticillium stress, GhNTF3 enters the nucleus and interacts with GhJAZ6 to activate SA signaling ...
Shuangjie Jia, Jingshang Wen, Jihang Li, Meina Feng, Yiming He, Ruojun Liu, Qian Liu, Junli Zhang, Kai Cheng, Xiangyu Zhang, Xiao Zhang   +10 more
wiley   +1 more source

Impact of human activities on the propagation dynamics from meteorological to hydrological drought in the Nenjiang River Basin, Northeast China

Journal of Hydrology: Regional Studies
Study region: Nenjiang River Basin, Northeast China Study focus: Understanding the propagation processes between different types of droughts is crucial for drought early warning and adaptation strategies.
Xubo Geng, Xiaoping Lei, Xiaoyan Song, Junyao Zhang, Wenbin Liu   +4 more
doaj   +1 more source