Study on the spatiotemporal matching relationship of agricultural water and land resources in the Tarim River basin
The sustainable utilization of agricultural water and land resources is an important foundation for promoting the construction of ecological civilization in the Tarim River basin,coordinating the strategic deployment of the Corps to the south,and promoting the integrated development of various industries.Based on the current situation of agricultural water and land resource matching in five regions of the Tarim River basin from 2005 to 2020,the Gini coefficient method,agricultural water and land resource matching coefficient,and agricultural water and land resource equivalent coefficient were used in combination with the ArcGIS software to analyze the spatiotemporal matching status of water and land resources in the Tarim River basin.The results indicate that:the distribution of agricultural water and land resources in the Tarim River basin is uneven in various regions,but the distribution of water and land resources is relatively uniform.In the time span of the study,the Gini coefficient was between 0.05 and 0.12,and the agricultural Gini coefficient fluctuated as a whole,but the change range was not large and was at the absolute average level.During the study period,the matching coefficient of agricultural water and land resources showed the characteristics of first decreasing,increasing,and then decreasing,and the matching coefficient of agricultural water and land resources in the five regions gradually tended to become consistent and stable between 1 and 2.According to the analysis of the equivalent coefficient,although the equilibrium degree of agricultural water and land resources in the five areas of the Tarim River basin has improved,the five areas are still in a state of extreme water shortage,and regional differences are large.Research has shown that the distribution of soil and water resources in the Tarim River basin is consistent,and overall in a state of water shortage.With the greater water-saving efforts;the porpotion of agricultural water is decreasing.
agricultural water and land resourcesGini coefficientequivalent coefficientmatching coefficient of water and soil resourcesTarim River basin
万方数据
维普
