Cultivated Land Change, Driving Forces and Its Impact on Landscape Pattern Changes in the Dongting Lake Basin

Junhan Li, Kaichun Zhou, Huimin Dong and Binggeng Xie
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Junhan Li: College of Resources and Environmental Sciences, Hunan Normal University, Changsha 410081, Hunan, China
Kaichun Zhou: College of Resources and Environmental Sciences, Hunan Normal University, Changsha 410081, Hunan, China
Huimin Dong: College of Resources and Environment, Shandong Agricultural University, Taian 271018, China
Binggeng Xie: College of Resources and Environmental Sciences, Hunan Normal University, Changsha 410081, Hunan, China

IJERPH, 2020, vol. 17, issue 21, 1-25

Abstract: Comprehending the dynamic change characteristics of land use/cover and the driving factors causing the change are prerequisites for protecting land resources. This paper analyzes changes in cultivated land, the driving factors that cause them, and their tremendous impact on landscape pattern changes in the Dongting Lake Basin. For this purpose, we used mathematical statistics, buffer analysis, trend analysis, landscape pattern index, and logistic regression model to analyze the land use data of the study area from 1980 to 2018. The results show that the cultivated land showed a decreasing trend, with the total area decreased by 4.76% (or 716.13 km 2 ) from 1980 to 2018, and the activity of mutual transformation with other land use types decreased. The spatial distribution pattern of cultivated land and landscape shows the change characteristics gradually from Dongting Lake to the surroundings. Among the driving factors of cultivated land changes, the influence of human activities was gradually increasing, while the natural factors were decreasing. The cultivated land landscape pattern index and the overall landscape pattern index have a significant positive correlation, showing relatively consistent change trend and spatial distribution characteristics. We believe that the decrease of cultivated land area has a certain relationship with the increase of landscape fragmentation in the Dongting Lake Basin. Our research is expected to provide a reference for strengthening regional cultivated land management and rational development and utilization of regional land resources.

Keywords: cultivated land changes; driving force; landscape pattern; trend analysis (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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