标题：Progressive landscape fragmentation in relation to cash crop cultivation作者：Su, Shiliang; Yang, Chenxue; Hu, Yina; Luo, Fanghan; Wang, Yaping

来源出版物：APPLIED GEOGRAPHY 卷：53 页：20-31 DOI：10.1016/j.apgeog.2014.06.002 出版年：SEP 2014

摘要：Cash crop cultivation has been a critical driver of land use change in many countries around the world. However, few efforts have been made to quantify the relationships between cash crop expansion and the subsequent landscape pattern changes. This paper characterized the process of cash crop expansion across Tiaoxi watershed (China) from 1985 to 2009 using multi-sensor and multi-temporal remotely sensed imageries. Correlations were identified between indicators of cash crop expansion (total area and total production of cash crops) and a family of landscape fragmentation metrics (patch density, edge density, landscape division index, effective mesh size, splitting index, Shannon's diversity index, and aggregation index). Results showed that Tiaoxi watershed experienced profound cash crop expansion and progressive landscape fragmentation. The cash crops spread in accessible and productive areas at the expense of paddy and forests. Social drivers of cash crop expansion included population growth, labor structure changes and market incentives. Indicators of cash crop expansion presented linear relationships with landscape fragmentation metrics. These findings evidenced that cash crop cultivation would significantly fragment landscapes. Our study contributed to understanding on the enlarging cultivation of cash crops and the associated modifications of landscape patterns in subtropical regions.

入藏号：WOS:000342529700003

文献类型：Article

语种：English

作者关键词：Cash crop expansion, Landscape fragmentation, Land use change, Driver, Remote sensing

扩展关键词：MAINLAND SOUTHEAST-ASIA; LAND-USE; RUBBER PLANTATIONS; ESTIMATING AREA; CHINA; EXPANSION; REGION; XISHUANGBANNA; URBANIZATION; INTEGRATION

通讯作者地址：Su, Shiliang; Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.

电子邮件地址：shiliangsu@163.com

地址：

[Su, Shiliang; Yang, Chenxue; Hu, Yina; Luo, Fanghan; Wang, Yaping] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.

[Su, Shiliang] Wuhan Univ, Minist Educ, Key Lab Geog Informat Syst, Wuhan 430072, Peoples R China.

[Su, Shiliang] Wuhan Univ, Natl Adm Surveying Mapping & Geoinformat, Key Lab Digital Mapping & Land Informat Applicat, Wuhan 430072, Peoples R China.

研究方向：Geography

ISSN：0143-6228