scholarly journals Risk Assessment of Regional Irrigation Water Demand and Supply in an Arid Inland River Basin of Northwestern China

2015 ◽  
Vol 7 (9) ◽  
pp. 12958-12973 ◽  
Author(s):  
Bin Guo ◽  
Weihong Li ◽  
Jinyun Guo ◽  
Chuanfa Chen
Keyword(s):  
Risk Assessment ◽  
River Basin ◽  
Irrigation Water ◽  
Water Demand ◽  
Northwestern China ◽  
Demand And Supply ◽  
Inland River ◽  
Irrigation Water Demand ◽  
Inland River Basin ◽  
Water Demand And Supply

Recent changes in climate seasonality in the inland river basin of Northwestern China

2020 ◽  
Vol 590 ◽  
pp. 125212
Author(s):  
Tingting Ning ◽  
Qi Feng ◽  
Zongxing Li ◽  
Zhi Li
Keyword(s):  
River Basin ◽  
Northwestern China ◽  
Inland River ◽  
Inland River Basin

scholarly journals Water resources planning in the Upper Niger River basin: Are there gaps between water demand and supply?

2019 ◽  
Vol 21 ◽  
pp. 176-194 ◽  
Author(s):  
Stefan Liersch ◽  
Samuel Fournet ◽  
Hagen Koch ◽  
Abdouramane Gado Djibo ◽  
Julia Reinhardt ◽  
...  
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Water Demand ◽  
Water Resources Planning ◽  
Demand And Supply ◽  
Water Demand And Supply ◽  
Niger River ◽  
Resources Planning

scholarly journals Responses of snowmelt runoff to climatic change in an inland river basin, Northwestern China, over the past 50 years

2010 ◽  
Vol 14 (10) ◽  
pp. 1979-1987 ◽  
Author(s):  
J. Wang ◽  
H. Li ◽  
X. Hao
Keyword(s):  
Climate Change ◽  
Climatic Change ◽  
River Basin ◽  
Air Temperature ◽  
Northwestern China ◽  
Heihe River ◽  
Snowmelt Runoff ◽  
The Past ◽  
Inland River ◽  
Inland River Basin

Abstract. The spatial and temporal variations of snowcover distribution, and snowmelt runoff are considered as sensitive indicators for climatic change. The purpose of this paper is to analyze and forecast the responses of snowmelt runoff to climate change in an inland river basin. The upper basin of Heihe River in Northwestern China was chose as the study area, and the observation data from the meteorological and hydrological stations were utilized to analyze the status and regularity of the climatic change over the past 50 years. Snow cover area was obtained by an optimized technology using Moderate Resolution Imaging Spectroradiometer data with Normalized Difference Snow Index adjustment and topographic correction. A concept of potential snowmelt was suggested to illustrate the response of spatial snowmelt to climate change. The results show that the annual SCA proportion and the potential snowmelt keep an increasing trend since 2000. There is a negative relationship between annual air temperature and SCA proportion from 2000 to 2008. Snowmelt Runoff Model was chose to simulate snowmelt runoff and scenario forecast the change trend of snowmelt runoff in this region. The results show that climatic warming was apparent in the upper basin of Heihe River over the past 50 a. Annual average air temperature of three different weather stations located in the basin has increased 2.1 °C, 2.6 °C and 2.9 °C respectively from 1956 to present. The snowmelt runoff has increased obviously from 1970 to present. With different warming climate scenarios, the results by using SRM simulating showed that the first occurred time of snowmelt runoff shift ahead and discharge become larger as responses of snowmelt runoff to air temperature increasing, and the influence of temperature rising on average discharge of the whole snow season is not obvious.

scholarly journals The relationship between irrigation water demand and drought in the Yellow River basin

2016 ◽  
Vol 374 ◽  
pp. 129-136 ◽  
Author(s):  
Yu Wang ◽  
Weihao Wang ◽  
Shaoming Peng ◽  
Guiqin Jiang ◽  
Jian Wu
Keyword(s):  
River Basin ◽  
Irrigation Water ◽  
Water Demand ◽  
Yellow River ◽  
Yellow River Basin ◽  
Irrigation District ◽  
The Yellow River ◽  
Irrigation Water Demand ◽  
Irrigation Districts ◽  
The Yellow River Basin

Abstract. In order to organize water for drought resistance reasonably, we need to study the relationship between irrigation water demand and meteorological drought in quantitative way. We chose five typical irrigation districts including the Qingtongxia irrigation district, Yellow River irrigation districts of Inner Mongolia in the upper reaches of the Yellow River, the Fen river irrigation district and the Wei river irrigation district in the middle reaches of the Yellow River and the irrigation districts in the lower reaches of the Yellow River as research area. Based on the hydrology, meteorology, groundwater and crop parameters materials from 1956 to 2010 in the Yellow River basin, we selected reconnaissance drought index (RDI) to analyze occurrence and evolution regularity of drought in the five typical irrigation districts, and calculated the corresponding irrigation water demand by using crop water balance equation. The relationship of drought and irrigation water demand in each typical irrigation district was studied by using grey correlation analysis and relevant analysis method, and the quantitative relationship between irrigation water demand and RDI was established in each typical irrigation district. The results showed that the RDI can be applied to evaluate the meteorological drought in the typical irrigation districts of the Yellow River basin. There is significant correlation between the irrigation water demand and RDI, and the grey correlation degree and correlation coefficient increased with increasing crops available effective rainfall. The irrigation water demand of irrigation districts in the upstream, middle and downstream of the Yellow River basin presented different response degrees to drought. The irrigation water demand increased 105 million m3 with the drought increasing one grade (RDI decreasing 0.5) in the Qingtongxia irrigation district and Yellow River irrigation districts of Inner Mongolia. The irrigation water demand increased 219 million m3 with the drought increasing one grade in the Fen river irrigation district and Wei river irrigation district. The irrigation water demand increased 622 million m3 with the drought increasing one grade in the downstream of Yellow River irrigation districts.

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