[1]TAN Kun,ZHAO Zujun,ZHAO Xiaoqing,et al.Utilization Variation Characteristics and Coupling of Water and Land Resources in Wenshan City of Karst Mountain Area[J].Research of Soil and Water Conservation,2021,28(04):324-332.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 04
Page number:
324-332
Column:
Public date:
2021-08-10
- Title:
-
Utilization Variation Characteristics and Coupling of Water and Land Resources in Wenshan City of Karst Mountain Area
- Author(s):
-
TAN Kun1, ZHAO Zujun2, ZHAO Xiaoqing1, PU Junwei1, LI Daixi3, LI Sinan1, MIAO Peipei1, WANG Qian1
-
(1.School of Earth Sciences, Yunnan University, Kunming 650500, China; 2.Yunnan Environmental Monitoring Center, Kunming 650034, China; 3.Wenshan Prefecture Meteorological Bureau of Yunnan Province, Wenshan, Yunnan 663000, China)
-
- Keywords:
-
water and land resources utilization; coupling coordination degree; karst mountain areas; Wen-shan City
- CLC:
-
P426.6;F301.24
- DOI:
-
-
- Abstract:
-
In order to promote the rational use of water and land resources, resource and environmental protection and sustainable socio-economic development of Wenshan City in the karst mountainous area, we deeply analyzed the characteristics of its spatial-temporal variation from the water and land resources system, and constructed the evaluation index system of water and land resources coupling coordination in karst mountainous areas. Study on the spatial grid scale of water and land resources coupling coordination was based on GIS technology and the coupling coordination degree model. The results show that:(1)from 2000 to 2017, the area with more precipitation in Wenshan City, karst mountain area shifted from the south, to southeast and southwest; the agricultural water consumption was more from the south to the southeast; the regions with more water consumption per ten thousand-Yuan of GDP were transferred from central, southeastern and to northern, western and eastern; the development and utilization rate of water resources improved significantly in Matang Town in the north, east and south;(2)from 2000 to 2017, the proportion of cultivated land area increased most significantly in the southeastern part of the city; the proportions of agricultural land area and construction land area in the eastern urban areas decreased and increased, respectively; the area with a high proportion of rocky desertification area shifted from southeast and southwest to northwest;(3)the overall level of water and land resources coupling and coordination was relatively high from 2000 to 2017, but the level of coupling and coordination was the best in 2010, and the average value of coupling and coordination degree was 0.016 7 higher than those in 2000 and 2017; the proportion of highly coordinated areas in 2010 was 16.16% and 14.21% higher than those in 2000 and 2017, respectively; the proportions of moderately coordinated and low coordination were 12.38%, 3.79%, and 9.98%, 4.23% lower than those in 2000 and 2017, respectively. In conclusion, the coupling coordination degree of water and land resources was consistent with the spatial distribution of rocky desertification, indicating that rocky desertification had a great impact on the coupling coordination of water and land resources. Rocky desertification control is the key to improve the coupling coordination level of water and land resources in karst mountainous areas.