Land Use Change and Its Driving Mechanism in Dongjiang River Basin from 1990 to 2018

Deng Xincui; Chen Yangbo

doi:10.13961/j.cnki.stbctb.2020.06.034

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Land Use Change and Its Driving Mechanism in Dongjiang River Basin from 1990 to 2018

- Land Use Change and Its Driving Mechanism in Dongjiang River Basin from 1990 to 2018
- Bulletin of Soiland Water Conservation Vol. 40, Issue 6, Pages: 236-242(2020)
- 作者机构：
  
  中山大学地理科学与规划学院,广东,广州,510275
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2020.06.034
  CLC： F301.24
- Published：2020
- 稿件说明：
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Deng Xincui, Chen Yangbo. Land Use Change and Its Driving Mechanism in Dongjiang River Basin from 1990 to 2018[J]. Bulletin of Soiland Water Conservation, 2020, 40(6): 236-242.
DOI：

Deng Xincui, Chen Yangbo. Land Use Change and Its Driving Mechanism in Dongjiang River Basin from 1990 to 2018[J]. Bulletin of Soiland Water Conservation, 2020, 40(6): 236-242. DOI： 10.13961/j.cnki.stbctb.2020.06.034.

摘要

[目的] 分析东江流域1990-2018年土地利用时空变化特征及驱动机制，为该流域土地利用优化提供科学参考。[方法] 利用流域土地利用数据及统计年鉴数据，结合土地利用评价指标、主成分分析法及灰色关联分析法分析流域土地利用变化特征及其驱动机制。[结果] ①东江流域1990-2018年土地利用以耕地和林地为主，流域建设用地面积持续增加，其余地类面积均呈减少趋势，耕地和林地是建设用地面积的主要来源；②流域土地利用综合指数逐年增加，变化率为0.038，土地利用处于上升发展阶段；③流域土地利用变化驱动力主要为经济增长、人口增长、社会富裕程度和农业发展；各类驱动因子对各土地利用类型的驱动作用不同。[结论] 1990-2018年，东江流域土地利用结构不断优化，土地利用集聚程度增加，随着粤港澳大湾区的建设开发，未来流域内土地开发利用活动将更加频繁。

Abstract

[Objective] The spatial-temporal change of land use and its driving mechanism in Dongjiang River basin from 1990 to 2018 was analyzed in order to provide support for the land us optimization.[Methods] Four evaluation indexes of land use

principal component analysis and grey relation analysis methods were employed to investigate the land use change and its driving mechanism.[Results] ① From 1990 to 2018

the land use types were mainly forest and farmland

the area of construction land continue to increase

while the area of other land use types decreased. The cultivated land and forest land were the main transferring sources of the construction land. ② The comprehensive land use index of the river basin increased year by year with an annual rate of 0.038

which indicated that the land use was in an upward developing trend. ③ Rapid economic development

population growth

social affluence

and agricultural development were the main driving forces of land use change

while the effects of various driving factors on land use change were different.[Conclusion] From 1990 to 2018

the land use structure of Dongjiang River basin was continuously optimized

while the land use agglomeration was constantly increasing. With the development of the Guangdong-Hongkong-Macao greater bay area

land development and utilization activities will be more frequent within the basin area.

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