摘要
Exploring the spatio-temporal variations of farmland landscape patterns in a traditional agricultural region can provide scientific support for decision-making on sustainable rural land use and rural vitalization development. This study established a comprehensive evaluation index for farmland fragmentation with multiple aspects(dominance, integrity, aggregation, regularity, and connectivity) at the county scale. The goal was to identify the evolution of farmland fragmentation in the traditional agricultural region of the Huang-Huai-Hai Plain during 2000–2015 and investigate underlying drivers using panel data of 359 counties.Results showed an accelerating but fluctuating fragmentation pattern of the farmland landscape. The indexes of dominance, integrity, and aggregation of farmland decreased most sharply, while the index of connectivity increased. Furthermore, the evolution of the farmland fragmentation pattern showed significant spatio-temporal heterogeneity, which is similar to the trajectory of urbanization and land use transition. Farmland fragmentation in municipal districts also emerged earlier and was more severe than in county-level cities and counties.Factors influenced by advancing urbanization include the proportion of artificial land, population density, and proportion of primary industry;these factors drove the evolution of farmland fragmentation. In contrast, the increase in income of rural residents and production efficiency of farmland were the key factors contributing to the improvement in farmland connectivity.
作者
郑瑜晗
龙花楼
陈坤秋
ZHENG Yuhan;LONG Hualou;CHEN Kunqiu(Key Laboratory of Regional Sustainable Development Modeling,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Public Administration,Guangxi University,Nanning 530004,China;School of Public Administration,Hunan University,Changsha 410082,China)
基金
National Natural Science Foundation of China,No.41731286, No.41971216
Natural Science Foundation of Guangxi Zhuang Autonomous Region,No.2018GXNSFDA281032
Program of Science and Technology Plan of Guangxi Zhuang Autonomous Region,No.AD19110158
The Bagui Scholars Program of Guangxi Zhuang Autonomous Region。