太阳成8722(中国)有限公司-GREEN NO.1

标题: Essential fragmentation metrics for agricultural policies: Linking landscape pattern, ecosystem service and land use management in urbanizing China

作者: Wei, L (Wei, Lai); Luo, Y (Luo, Yun); Wang, M (Wang, Miao); Su, SL (Su, Shiliang); Pi, JH (Pi, Jianhua); Li, G (Li, Guie)

来源出版物: AGRICULTURAL SYSTEMS 卷: 182 文献号: UNSP 102833 DOI: 10.1016/j.agsy.2020.102833 出版年: JUN 2020

摘要: Fragmentation, as one of the most distinct characteristics of agricultural landscapes worldwide, has resulted in a diversity of ecological consequences. It remains as a gap in the literature on how provisioning service changes in association with agricultural fragmentation and land use management. Addressing such a gap at a national level should provide essential insights for policymakers. This paper identifies the essential metrics from a set of landscape metrics for describing agricultural fragmentation and further develops an integrated fragmentation index (IFI). Using the IFI, spatiotemporal dynamics of agricultural fragmentation across Chinese cities from 2010 to 2017 are captured. In particular, an increasing trend of fragmentation is identified and southern China is characterized by more fragmented agricultural landscapes than the other parts. Spatial regression, with the Cobb-Douglas Production Function as the theoretical basis, is employed to quantify the relationships among provisioning service, agricultural fragmentation, and land use management. It is discovered that landscape fragmentation would impair the supply of the provisioning service and sustainable land use management regulates the provisioning service in a positive way. We argue that alleviating the landscape fragmentation issue would not be achieved with simple measurement. Cooperation of a series of administrative acts, such as land reclamation, land use transfer, household registration system reform and improvement of employment and welfare system, should be fundamental and practical approaches. The present study demonstrates a novel methodological framework to unravel the effect of agricultural fragmentation on provisioning services, which should be useful for understanding the complex human-ecosystem interactions.

入藏号: WOS:000539094200008

语言: English

文献类型: Article

作者关键词: Landscape fragmentation; Provisioning services; Agricultural management; Landscape metrics; Cobb-Douglas production function

地址: [Wei, Lai; Luo, Yun; Su, Shiliang; Pi, Jianhua; Li, Guie] Wuhan Univ, Sch Resource & Environm Sci, Wuhan, Peoples R China.

[Wei, Lai] Lund Univ, Dept Phys Geog & Ecosyst Sci, Lund, Sweden.

[Wang, Miao] Beijing Inst Surveying & Mapping, Beijing Key Lab Urban Spatial Informat Engn, Beijing, Peoples R China.

通讯作者地址:

129 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China.

电子邮件地址: shiliangsu@whu.edu.cn

影响因子：4.212