Long-term groundwater dynamics affected by intense agricultural activities in oasis areas of arid inland river basins, Northwest China

2018 ◽  
Vol 203 ◽  
pp. 37-52 ◽  
Author(s):  
Minghuan Liu ◽  
Yao Jiang ◽  
Xu Xu ◽  
Quanzhong Huang ◽  
Zailin Huo ◽  
...  
Keyword(s):  
Northwest China ◽  
River Basins ◽  
Agricultural Activities ◽  
Groundwater Dynamics ◽  
Inland River

scholarly journals Hydrological and water cycle processes of inland river basins in the arid region of Northwest China

2019 ◽  
Vol 11 (2) ◽  
pp. 161-179 ◽  
Author(s):  
Yaning Chen ◽  
Baofu Li ◽  
Yuting Fan ◽  
Congjian Sun ◽  
Gonghuan Fang
Keyword(s):  
Arid Region ◽  
Water Cycle ◽  
Northwest China ◽  
River Basins ◽  
Inland River

scholarly journals Agricultural Water Use Efficiency—A Case Study of Inland-River Basins in Northwest China

2020 ◽  
Vol 12 (23) ◽  
pp. 10192
Author(s):  
Wei Qu ◽  
Yanmei Tan ◽  
Zhentao Li ◽  
Eefje Aarnoudse ◽  
Qin Tu
Keyword(s):  
Water Resources ◽  
Water Use Efficiency ◽  
Water Use ◽  
Linear Regression Analysis ◽  
Northwest China ◽  
River Basins ◽  
Gansu Province ◽  
Utilization Efficiency ◽  
Inland River ◽  
Use Efficiency

Water resources play a vital role in the process of economic development, especially in arid and semi-arid regions. Improving the efficiency of water use is an effective way to solve the shortage of water resources. In this paper, influencing factors of water utilization efficiency in three inland river basins (Shiyang, Heihe, and Shule river) in Gansu Province, Northwest China, are investigated. Using survey data of 306 households, results of the multiple linear regression analysis show that management capacity and its strictness in a different basin, irrigation technology and facility conditions, and farmers’ self-government are key factors affecting farmers’ irrigation efficiency. Additionally, factors at the farmer and family level, as well as the differences in natural conditions and economic and social development in different regions, also have a significant impact on water use efficiency.

Ecosystem restoration and conservation in the arid inland river basins of Northwest China: Problems and strategies

2016 ◽  
Vol 94 ◽  
pp. 629-637 ◽  
Author(s):  
Yonghua Zhu ◽  
Yaning Chen ◽  
Liliang Ren ◽  
Haishen Lü ◽  
Wenzhi Zhao ◽  
...  
Keyword(s):  
Ecosystem Restoration ◽  
Northwest China ◽  
River Basins ◽  
Inland River

scholarly journals Modeling an Aquifer: Numerical Solution to the Groundwater Flow Equation

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
V. Vázquez-Báez ◽  
A. Rubio-Arellano ◽  
D. García-Toral ◽  
I. Rodríguez Mora
Keyword(s):  
Stationary Flow ◽  
Flow Equation ◽  
Computational Tool ◽  
Groundwater Dynamics ◽  
Isotropic Media ◽  
Groundwater Flow Equation ◽  
The Finite Difference Method ◽  
Anisotropic Soil ◽  
Constant Slope

We present a model of groundwater dynamics under stationary flow and, governed by Darcy’s law of water motion through porous media, we apply it to study a 2D aquifer with water table of constant slope comprised of a homogeneous and isotropic media; the more realistic case of an homogeneous anisotropic soil is also considered. Taking into account some geophysical parameters we develop a computational routine, in the Finite Difference Method, which solves the resulting elliptic partial equation, both in a homogeneous isotropic and in a homogeneous anisotropic media. After calibration of the numerical model, this routine is used to begin a study of the Ayamonte-Huelva aquifer in Spain, a modest analysis of the system is given, and we compute the average discharge vector as well as its root mean square as a first predictive approximation of the flux in this system, providing us a signal of the location of best exploitation; long term goal is to develop a complete computational tool for the analysis of groundwater dynamics.

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