欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 2021, Vol. 32 ›› Issue (7): 2545-2554.doi: 10.13287/j.1001-9332.202107.016

• 研究论文 • 上一篇    下一篇

赣江中上游地区土地利用变化空间分异与驱动因素

刘光旭1, 王小军2*, 相爱存1, 王雪然3, 王炳香2, 肖书妹4   

  1. 1赣南师范大学地理与环境工程学院, 江西赣州 341000;
    2华南师范大学地理科学学院, 广州 510631;
    3河北师范大学资源与环境科学学院, 石家庄 050024;
    4中国科学院大学, 北京 100049
  • 收稿日期:2021-01-01 修回日期:2021-04-11 出版日期:2021-07-15 发布日期:2022-01-15
  • 通讯作者: *gwangxj@163.com
  • 作者简介:刘光旭,男,1977年生,博士,副教授。主要从事自然灾害与生态环境等研究。E-mail:lg760411@126.com
  • 基金资助:
    江西省社会科学规划项目(19GL30)、江西省高校人文社会科学研究规划项目(GL20116)、河北省高等学校科学技术研究项目(ZD2021067)和华南师范大学挑战杯金种子培育项目(20DKKA01)

Spatial heterogeneity and driving factors of land use change in the middle and upper reaches of Ganjiang River, southern China

LIU Guang-xu1, WANG Xiao-jun2*, XIANG Ai-cun1, WANG Xue-ran3, WANG Bing-xiang2, XIAO Shu-mei4   

  1. 1School of Geography and Environmental Engineering, Gannan Normal University, Ganzhou 341000, Jiangxi, China;
    2School of Geographi-cal Sciences, South China Normal University, Guangzhou 510631, China;
    3College of Resources and Environmental Science, Hebei Normal University, Shijiazhuang 050024, China;
    4University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2021-01-01 Revised:2021-04-11 Online:2021-07-15 Published:2022-01-15
  • Contact: *gwangxj@163.com
  • Supported by:
    Social Science Planning Project of Jiangxi Province (19GL30),the Humanities and Social Science Research Planning Project for Universities of Jiangxi Province (GL20116),the Science anc Technology Research Project for Universities of Hebei Province (ZD2021067),and the Challenge Cup Gold Seed Cultivation Project of South China Normal University (20DKKA01).

摘要: 赣江中上游地区是东南丘陵重要的水土保持功能区,分析不同时空尺度下该区域土地利用变化及其驱动力,对维持与优化本地生态功能具有重要意义。本研究基于1 km空间分辨率的土地利用数据,分析1980—2018年赣江中上游地区的土地利用结构与土地利用动态度;并利用主成分分析法(PCA)、普通最小二乘法(OLS)和地理加权回归(GWR)分析土地利用变化的空间分异驱动力。结果表明: 1980—2018年,研究区主要土地利用类型是林地(面积占比69.4%~71%)和耕地(占比20.8%~20.9%);建设用地、未利用地的土地利用动态度较大,研究区综合土地利用动态度逐渐增加,尤其是2010—2018年明显增加。GWR模型对研究区土地利用变化驱动因素分析的拟合效果更好,在98.6%的区域内都比较理想。在土地利用变化空间分异的影响因素中,自然环境因素对研究区土地利用变化空间分异的影响最明显,起制约作用;社会经济因素的影响居次位,主要起促进作用;自然-社会因素综合影响较弱且复杂。

关键词: 土地利用变化, 驱动因素, 空间分异, 赣江中上游

Abstract: The middle and upper reaches of Ganjiang River is an important functional area for soil and water conservation in the southeastern hills of China. It is important to analyze the land use change and their driving forces at different spatial and temporal scales to maintain and optimize the local ecological functions. We analyzed the land use structure and land use dynamics in the middle and upper reaches of Ganjiang River from 1980—2018 based on 1 km spatial resolution land use data, and analyzed the spatial heterogeneity and driving factors of land use change using principal component analysis (PCA), ordinary least squares (OLS) and geographically weighted regression (GWR). From 1980-2018, the main land use types in the study area were forests (proportion 69.4%-71%) and cultivated land (proportion 20.8%-20.9%). Land use dynamic degree of build-up land and unused land were larger, and the comprehensive land use dynamic degree gradually increased, especially in 2010-2018. The GWR model had a better fitting effect on the analysis of land use change drivers, which was better in 98.6% of the area. Among the influencing factors of the spatial heterogeneity of land use change in the study area, the natural environment factors were the most obvious, with a restrictive role. The socio-economic factors were the secondary in importance, with a promoting role. The comprehensive influence of natural and social factors were weak and complex.

Key words: land use change, driving factor, spatial heterogeneity, the middle and upper reaches of Ganjiang River