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Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (20): 98-107.doi: 10.11924/j.issn.1000-6850.casb2020-0632

Special Issue: 资源与环境 农业地理 耕地保护

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Characteristics and Driving Force of Land Use Change in Southwest China from 2000 to 2015:A Case Study of Fengjie County in Chongqing

Xu Chenglong1(), Ji Peiyao2, Gong Wenfeng2(), Liu Yueyang1, Du Chong1   

  1. 1School of Hydraulic and Electric Power of Heilongjiang University, Harbin 150086
    2College of Forestry, Hainan University, Haikou 570228
  • Received:2020-11-06 Revised:2021-01-25 Online:2021-07-15 Published:2021-08-06
  • Contact: Gong Wenfeng E-mail:354016684@qq.com;gwf101@163.com

Abstract:

This thesis studied the space-time evolution of land use pattern and its driving force of Fengjie County, Chongqing City, aiming to provide a theoretical basis and technical references on land use optimization, ecological protection and sustainable development at county scale southwest China. Based on RS and GIS technology and the 4 phases of basic data (2000, 2005, 2010 and 2015), this thesis revealed the dynamic changing feature and regular pattern of spatial-temporal evolution of local land use from 2000 to 2015 from aspects like land use dynamic model and geographic information map. By means of principal component analysis and linear regression analysis model, and taking the socioeconomic statistics of Fengjie County as the basic factor, the driving mechanism of land use was explored. The results showed that in the study years, the studied area presented a land use spatial pattern with forestland and cultivated land as the main types and other lands interspersing. According to the analyzed data, the cultivated land, grassland and unused land respectively had a reduction of 78.84, 3.734 and 2.54 km2, while the forestland, water area and residential and industrial and mining area increased by 23.364, 46.67 and 9.034 km2 respectively. Affected by the migrants from the Three Gorges area, the distribution of regional land use developed from overall disorder to locally in order. From 2000 to 2010, the land use type transfer was mainly found among the forest land, grassland and cultivated land. The total transfer area from forest land to cultivated land and grassland were 849.38 and 425.17 km2, respectively. From 2010 to 2015, the forest land and the residential and industrial and mining area increased by 9.93 and 7.09 km2, respectively. The thesis found that it was effective to explore the driving mechanism of regional urbanization from the perspectives of industrial structure adjustment, policy influence and social development, and concluded that the land use pattern change in Fengjie County were mainly driven by urbanization factors, policy factors, economic factors, social development factors and agricultural factors.

Key words: land information, spatial-temporal evolution driving mechanism, geographic information map, principal component analysis, Fengjie County

CLC Number: