Results 41 to 50 of about 941,608 (152)

Simulation and analysis of evapotranspiration from desert grasslands based on a random forest regression model

Scientific Reports
Evapotranspiration (ET) is a critical component of the water and energy cycles in desert grassland ecosystems. However, modeling ET in arid grasslands faces significant challenges due to data scarcity, high spatiotemporal heterogeneity, and complex ...
Haitao Chen, Nishi Chu, Aiqing Kang, Wenchuan Wang, Ji He   +4 more
doaj   +1 more source

Water Demand Forecast in the Baiyangdian Basin with the Extensive and Low-Carbon Economic Modes

Journal of Applied Mathematics, 2014
The extensive and low-carbon economic modes were constructed on the basis of population, urbanization level, economic growth rate, industrial structure, industrial scale, and ecoenvironmental water requirement.
T. L. Qin, D. H. Yan, G. Wang, J. Yin
doaj   +1 more source

Study on Water and Salt Transport Characteristics of Sunflowers under Different Irrigation Amounts in the Yellow River Irrigation Area

Agronomy
The control of irrigation volume is of significant importance in arid regions of northwest China. Particularly, it has a crucial impact on the salinization of shallow groundwater areas.
Changfu Tong, Rui He, Jun Wang, Hexiang Zheng   +3 more
doaj   +1 more source

Study of Drought Characteristics and Atmospheric Circulation Mechanisms via a “Cloud Model”, Inner Mongolia Autonomous Region, China

Agronomy
Droughts are long-term natural disasters and encompass many unknown factors. Herein, yearly and seasonal standardized precipitation evapotranspiration index (SPEI) values were calculated by analyzing monthly temperature and precipitation data from 1971 ...
Sinan Wang, Henglu Miao, Yingjie Wu, Wei Li, Mingyang Li   +4 more
doaj   +1 more source

TCN-Attention Model-Based Prediction of Reference Crop Evapotranspiration in Northern Henan Province

Agronomy
Accurate and reliable estimation of reference crop evapotranspiration (ET0) in the North Henan Plain is crucial for agricultural water resource management, production, and food supply in China. This study aims to evaluate the performance of deep learning
Jianqin Ma, Fu Zhao, Bifeng Cui, Lei Liu, Xiuping Hao, Yan Zhao, Yu Ding, Yijian Chen   +7 more
doaj   +1 more source

Coupled Impacts of Bed Erosion and Roughness Variation on Stage-Discharge Relationships: A 1D Hydrodynamic Modeling Analysis of the Regulated Jingjiang Reach

Hydrology
The stage-discharge relationship in the Jingjiang Reach of the Yangtze River has undergone significant alterations due to post-Three Gorges Reservoir (TGR) operation effects, notably bed erosion and roughness variation. This study employs a calibrated 1D
Yanqing Li, Minglong Dai, Dongdong Zhang, Yingqi Chen   +3 more
doaj   +1 more source

Simulation of Maize Growth Under the Applications of Brackish Water in Northwest China

Agronomy
The objective of this study is to assess the suitability of the AquaCrop model for growing maize using brackish water irrigation in Northwest China. Additionally, this study aims to examine how maize utilizes water in various soil layers when irrigated ...
Changfu Tong, Rui He, Jun Wang, Hexiang Zheng   +3 more
doaj   +1 more source

Study on Alfalfa Water Use Efficiency and Optimal Irrigation Strategy in Agro-Pastoral Ecotone, Northwestern China

Agronomy
Agro-pastoral ecotone is an important livestock production area in the north of China, and alfalfa is the main pasture crop in this area. Aiming to address the issues of groundwater overexploitation in the area with water demand, we assessed the ...
Xiangyang Miao, Guoshuai Wang, Bing Xu, Ruiping Li, Delong Tian, Jie Ren, Zekun Li, Ting Fan, Zisen Zhang, Qiyu Xu   +9 more
doaj   +1 more source

Assessing the effects of dam regulation on multiscale variations in river hydrological regime and ecological responses

Journal of Water and Climate Change
Using a combination of the long short-term memory model and hydrological change indicators, this study proposes an assessment framework at inter-annual and intra-annual scales to quantify the hydrological regime changes and ecological event responses ...
Hongxiang Wang, Xiangyu Bai, Huan Yang, Xuyang Jiao, Lintong Huang, Wenxian Guo   +5 more
doaj   +1 more source

SMGformer: integrating STL and multi-head self-attention in deep learning model for multi-step runoff forecasting

Scientific Reports
Accurate runoff forecasting is of great significance for water resource allocation flood control and disaster reduction. However, due to the inherent strong randomness of runoff sequences, this task faces significant challenges. To address this challenge,
Wen-chuan Wang, Miao Gu, Yang-hao Hong, Xiao-xue Hu, Hong-fei Zang, Xiao-nan Chen, Yan-guo Jin   +6 more
doaj   +1 more source