基于土地利用类型转移的甘肃祁连山自然保护区土地生态安全研究  

Research on land ecological security of Qilian Mountain Nature Reserve in Gansu Province based on land use type transfer

作　　者：闫新宇 牛成英 任潇潇 YAN Xinyu;NIU Chengying;REN Xiaoxiao(School of Statistics,Lanzhou University of Finance and Economics,730020,Lanzhou,Gansu,PRC)

机构地区：[1]兰州财经大学统计学院,甘肃省兰州市730020

出　　处：《曲阜师范大学学报（自然科学版）》2022年第2期113-120,共8页Journal of Qufu Normal University(Natural Science)

基　　金：国家社科基金(21BTJ042);甘肃省高等学校创新基金(2020A-068);兰州财经大学校级科研项目(Lzufe2019B-012)。

摘　　要：以甘肃省祁连山自然保护区1985~2019年间土地利用遥感数据为基础,利用ArcGIS软件进行空间相交叠加分析,基于土地利用转移矩阵,分析土地利用类型的时空转移特征,利用土地资源规制技术手段测度祁连山自然保护区土地生态安全敏感性指数,将土地利用类型变化与生态安全指数进行灰色关联关系,探索土地利用类型变化对保护区土地生态安全的影响.结果表明:水体和裸地的面积变动是导致该地区土地生态安全指数波动的主要原因;水土涵养和裸地治理是祁连山自然保护区未来生态修复的主要任务.Based on the remote sensing data of land use type from 1985 to 2019 in Qilian Mountain Nature Reserve of Gansu Province, the spatial intersection analysis is carried out by using ArcGIS. By using the land-use transition matrix, this paper analyzes the temporal and spatial variation characteristics of land use types, then use the technical means of land resource regulation to measure the sensitivity index of land ecological security in Qilian Mountain Nature Reserve, we analysis the grey correlation of land use change and ecological security index for explore the impact of land use change on the land ecological security of the reserve. The results showed that the fluctuation of land ecological security index was mainly caused by the area change of body of water and bare land, so soil and water conservation and bare land management were the main tasks of ecological restoration in Qilian Mountain Nature Reserve in the future.

关 键 词：土地转移矩阵 土地生态安全 生态安全指数 灰色关联分析 

分 类 号：O213.9[理学—概率论与数理统计] X87[理学—数学]