基于RS和GIS的云南省曲靖市石漠化土地动态变化研究  

Dynamic Changes of the Rocky Desertification Land in Qujing City,Yunnan Province Based on RS and GIS

作　　者：叶林杰 张超[1,2] 陈棋 田湘云 张玉薇 艾文竹 YE Lin-jie;ZHANG Chao;CHEN Qi;TIAN Xiang-yun;ZHANG Yu-wei;AI Wen-zhu(Southwest Forestry University,Kunming 650224,Yunnan,China;Yunnan Key Laboratory of Ecological Environment Evolution and Pollution Control in Mountainous Rural Areas,Kunming 650224,Yunnan,China)

机构地区：[1]西南林业大学,云南昆明650224 [2]云南省山地农村生态环境演变与污染治理重点实验室,云南昆明650224

出　　处：《西北林学院学报》2023年第2期201-208,共8页Journal of Northwest Forestry University

基　　金：国家自然科学基金项目(32160405);云南省“万人计划”人才培养项目(YNWR-QNBJ-2018-334)。

摘　　要：以曲靖市为研究对象,借助RS与GIS手段,分析2000-2020年曲靖市石漠化的演变特征,通过栅格统计和计算,得到2000-2020年曲靖市不同级别的石漠化土地规模和变化情况。结果表明,2000-2020年,曲靖地区不同级别的石漠化出现了周期性的变化,重度的和极度石漠化的变化趋于平稳,石漠化防治取得了明显的成效,但是潜在的、轻度的石漠化依然存在。曲靖市的石漠化空间分布呈现出东南部重、中部和西北部轻的总体特征,分布相对比较集中。另外,潜在石漠化和轻度石漠化极不稳定,容易被迁移到更高级的石漠化地区。石漠化区域的治理是一项长期而复杂的系统工程,这个过程既有自然因素,也有人为因素。因此在恢复和治理环境上,要把生态效益与经济效益有机统一起来,而不能单方面地追求经济效益和生态效益。Taking Qujing City as the research object,the evolution characteristics of rocky desertification in the city from 2000 to 2020 were analyzed by means of RS and GIS,and the scale and change of rocky desertification land in different levels were obtained by grid statistics and calculation.The results showed that from 2000 to 2020,the rocky desertification of different levels in Qujinga changed periodically,and the changes of severe and extremely severe rocky desertification tended to be stable,and the control of rocky desertification achieved remarkable results,but the potential and mild rocky desertification still existed.The spatial distribution of rocky desertification in Qujing showed the overall characteristics of serous in the southeast,mild in the middle and northwest,and the distribution was relatively concentrated.In addition,potential rocky desertification and mild rocky desertification were extremely unstable and easy to be migrated to more serous level.The management of rocky desertification area is a long-term and complex systematic project,which involves both natural factors and human factors.Therefore,in restoring and harnessing the environment,we should organically integrate ecological and economic benefits,instead of pursuing economic and ecological benefits unilaterally.

关 键 词：生态环境演变 石漠化变化 综合治理 曲靖市 

分 类 号：S758.5[农业科学—森林经理学]