scholarly journals The Process of Cultivated Land and Water Resource Distribution Changing in Recent Decades in Upstream and Downstream in Shiyang Inland River Basin in Arid Area of Northwest China

2016 ◽  
Vol 04 (07) ◽  
pp. 166-171 ◽  
Author(s):  
Huaidong Wei ◽  
Ya Li ◽  
Cundong Xu ◽  
Lanping Zhou ◽  
Xiaoke Hu ◽  
...  
Keyword(s):  
River Basin ◽  
Water Resource ◽  
Resource Distribution ◽  
Northwest China ◽  
Arid Area ◽  
Cultivated Land ◽  
Inland River ◽  
Inland River Basin

Analysis of Trends and Changes in the Water Environment of an Inland River Basin in an Arid Area

2014 ◽  
Vol 86 (2) ◽  
pp. 104-110 ◽  
Author(s):  
Wei H. Li ◽  
Ai H. Fu ◽  
Hong H. Zhou ◽  
Cheng G. Zhu ◽  
Dilinuer· Aji
Keyword(s):  
River Basin ◽  
Water Environment ◽  
Arid Area ◽  
Inland River ◽  
Inland River Basin

scholarly journals A Comprehensive Approach to Assess the Hydrological Drought of Inland River Basin in Northwest China

Atmosphere ◽  
2018 ◽  
Vol 9 (10) ◽  
pp. 370 ◽  
Author(s):  
Nina Zhu ◽  
Jianhua Xu ◽  
Weihong Li ◽  
Kaiming Li ◽  
Cheng Zhou
Keyword(s):  
Soil Moisture ◽  
River Basin ◽  
Potential Evapotranspiration ◽  
Warning System ◽  
Northwest China ◽  
Reanalysis Data ◽  
Hydrological Drought ◽  
Comprehensive Approach ◽  
Inland River ◽  
Inland River Basin

How to measure and quantitatively assess hydrological drought (HD) in the inland river basins of Northwest China is a difficult problem because of the complicated geographical environment and climatic processes. To address this problem, we conducted a comprehensive approach and selected the Aksu River Basin (ARB) as a typical inland river basin to quantitatively assess the hydrological drought based on the observed data and reanalysis data during the period of 1980–2010. We used two mutual complementing indicators, i.e., the standardized runoff index (SRI) and standardized terrestrial water storage index (SWSI), to quantitatively measure the spatio-temporal pattern of HD, where the SRI calculated from the observed runoff data indicate the time trend of HD of the whole basin, while SWSI extracted from the reanalysis data indicate the spatial pattern of HD. We also used the auto-regressive distribution lag model (ARDL) to show the autocorrelation of HD and its dependence on precipitation, potential evapotranspiration (PET), and soil moisture. The main conclusions are as follows: (a) the western and eastern regions of the ARB were prone to drought, whereas the frequency of drought in the middle of the ARB is relatively lower; (b) HD presents significant autocorrelation with two months’ lag, and soil moisture is correlated with SWSI with two months’ lag, whereas PET and precipitation are correlated with SWSI with 1 month’ lag; (c) the thresholds of HD for annual PET, annual precipitation, and annual average soil moisture are greater than 844.05 mm, less than 134.52 mm, and less than 411.07 kg/m2, respectively. A drought early warning system that is based on the thresholds was designed.

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