单 位：
西南林业大学林学院;云南省山地农村生态环境演变与污染治理重点实验室
关键词：
长江上游;石漠化;水土资源利用;耦合协调度
摘 要：
为促进长江上游典型石漠化地区的水土资源合理利用和资源环境保护，本研究以Landsat TM/OLI影像为数据源，基于会泽县石漠化分布特征，结合水土资源与人类活动指标，分析石漠化演变的驱动因子，构建石漠化地区水土资源与人类活动耦合协调度模型，探讨水土资源与人类活动耦合协调关系。结果显示：(1)会泽县石漠化整体面积明显减少，2010—2020年石漠化面积减少423.22 km~2,占岩溶区面积的26.72%。(2)水土资源、人类活动与石漠化演变有显著相关性，主成分累计贡献率为94.66%,林地比例、年降水量和耕地比例等水土资源类因子是石漠化演变的主要驱动因子。(3)2010—2020年会泽县岩溶地区水土资源与人类活动耦合协调度较高，呈现上升趋势，低协调度转换为高协调度的面积达885.84 km~2,失调型转化为协调型的面积达263.17 km~2。2020年的耦合协调性最好，平均值为0.734 7,且高度协调地区面积占比达65.41%,分别比2010年、2015年高8.90%和18.55%。(4)水土资源和人类活动耦合协调度越低的地区，石漠化等级越高，耦合协调度和石漠化演变之间有着密切关系。
译 名：
Coupling Relationship Between Water and Soil Resources and Human Activities in the Rocky Desertification Area of the Upper Reaches of the Yangtze River:a Case Study of Huize County
作 者：
CHEN Zhi;YIN Xiaojie;TENG Jiao;LI Gan;LI Hui;WANG Yan;College of Forestry, Southwest Forestry University;Key Laboratory of Ecological Environment Evolution and Pollution Control in Mountainous Rural Areas of Yunnan Province;
关键词：
the upper Yangtze River;;rocky desertification;;utilization of water and soil resources;;coupling coordination degree
摘 要：
To promote the rational use of water and soil resources and the protection of resources and environment in the typical rocky desertification areas in the upper Yangtze River, Landsat TM/OLI imagery was used as the data source to analyze the driving factors of rocky desertification evolution based on the distribution characteristics of stone desertification and indicators of soil and water resources and human activities in Huize County.Then we constructed a coupled coordination degree model of soil and water resources and human activities in rocky desertification areas to explore the coupled coordination relationship between soil and water resources and human activities.The results showed that:(1)The overall area of rocky desertification in Huize County decreased significantly, and the area of rocky desertification decreased by 423.22 km~2 from 2010 to 2020 accounting for 26.72% of the karst area.(2)There is a significant correlation between water and soil resources, human activities and the evolution of rocky desertification, the cumulative contribution rate of the principal components is 94.66%.Soil and water resource factors, such as the proportion of forested land, annual precipitation and the proportion of cultivated land are the main drivers of rocky desertification evolution.(3)From 2010 to 2020,the coupling and coordination degree of water and soil resources and human activities in the karst area of Huize County was relatively high, showing an upward trend.The area of low coordination degree converted to high coordination degree with 885.84 km~2,and the area of imbalanced type converted to coordinated type with 263.17 km~2.The best coupling coordination was found in 2020,with a mean value of 0.734 7,and the area share of highly coordinated areas was 65.41%,which was 8.90% and 18.55% higher than in 2010 and 2015,respectively.(4)There is a close relationship between the degree of coupling coordination and the evolution of rocky desertification.The areas with lower degree of coupling coordination between soil and water resources and human activities show higher level of stone desertification.
