四川省第六次荒漠化和沙化监测结果分析  

Analysis of Sixth Desertification and Sandification Monitoring Results in Sichuan Province

作　　者：刘凯 王守强 张震 严加全 LIU Kai;WANG Shou-qiang;ZHANG Zhen;YAN Jia-quan(Sichuan Provincial Institute of Forestry and Grassland Survey and Planning,Chengdu 610068,China;Sichuan Provincial Forestry Survey and Design Institute Co.,Ltd.Chengdu 610068,China)

机构地区：[1]四川省林业和草原调查规划院,四川成都610068 [2]四川省林业勘察设计研究院有限公司,四川成都610068

出　　处：《四川林勘设计》2024年第4期1-7,共7页Sichuan Forestry Exploration and Design

摘　　要：基于四川省第六次荒漠化和沙化监测成果,分析了前期(第五次,2014年)至本期(第六次,2019年)四川荒漠化和沙化土地的现状、动态变化,并提出了“三体系”的防治对策。结果表明,四川荒漠化土地集中分布在甘孜藏族自治州巴塘县、乡城县、得荣县,以轻度和中度为主,水蚀是主导自然因素,面积较前期减少了14.18%;沙化土地主要分布在阿坝藏族羌族自治州与甘孜藏族自治州(即川西北地区),土地沙化程度以轻度为主,面积较前期减少了21.43%。各项治理措施的实施和“国土三调”数据衔接是导致荒漠化和沙化面积变化的两大主因。Based on the results of the sixth monitoring of desertification and sandification in Sichuan Province,the current status and dynamic changes of desertified and sandified land from the previous period(fth monitoring,2014)to the current period(sixth monitoring,2019)were analyzed in this study,and a"three-system"control strategy was proposed.The results show that the desertified land in Sichuan is mainly concentrated in Batang County,Xiangcheng County,and Derong County of the Ganzi Tibetan Autonomous Prefecture,with light and moderate degrees being predominant,and water erosion being the leading natural factor.The area has decreased by 14.18%compared to the previous period.Sandified land is mainly distributed in the Aba Tibetan and Qiang Autonomous Prefecture and Ganzi Tibetan Autonomous Prefecture(i.e.,the northwestern part of Sichuan Province),with the degree of sandification being mainly light,and the area has decreased by 21.43%compared to the previous period.The implementation of various control measures and the linkage of data from the"Third National Land Survey"are the two main reasons for the changes in the area of desertification and sandification.

关 键 词：荒漠化 沙化 四川省 监测 防治对策 

分 类 号：S15[农业科学—土壤学]