太阳成8722(中国)有限公司-GREEN NO.1

标题：Farmland fragmentation due to anthropogenic activity in rapidly developing region作者：Su, Shiliang; Hu, Yi'na; Luo, Fanghan; Mai, Gengchen; Wang, Yaping

来源出版物：AGRICULTURAL SYSTEMS 卷：131期： 页：87-93 DOI：10.1016/j.agsy.2014.08.005 出版年：NOV 2014

摘要：Measuring farmland fragmentation and its interactions with anthropogenic activities can advance our understanding of complexity in agricultural systems. Majority of previous studies focused on farmland ownership fragmentation rather than physical landscape fragmentation. This paper characterized the farmland landscape fragmentation dynamics in Tiaoxi watershed (China) from 1985 to 2013 using a set of variables (area-weighted mean patch area, patch density, area-weighted mean shape index, mean Euclidean nearest neighbor distance, splitting index, and effective mesh size). Four categories of anthropogenic drivers (demographic, economic, social and cultural, and scientific and technological) and their relative importance were quantified by multiple regression and variance partitioning. Results showed a linear increasing trend of farmland fragmentation in Tiaoxi watershed during the study period. Drivers for farmland fragmentation differed with variables. In general, non-agricultural population and migration population were the key demographic drivers, while road mileage and investment in real estate were the principal social drivers. Two groups of economic drivers were identified: one group included fruit and seafood production, another included per capita income and proportion of tertiary industry. Besides, education expenses increases and technological improvement could significantly reduce farmland fragmentation. Considering the relative importance for different categories of drivers, economy was the most influential driver; its joint influences with social and cultural drivers and those with scientific and technological drivers were relatively stronger. Our study advanced the understanding of principle anthropogenic drivers influencing farmland fragmentation dynamics.

入藏号：WOS:000343955300009

文献类型：Article

语种：English

作者关键词：Farmland fragmentation, Landscape metrics, Anthropogenic activity, Drivers, Land use change

扩展关键词：LAND-USE; LANDSCAPE FRAGMENTATION; CHINA; URBANIZATION; AGRICULTURE; INDICATORS; PATTERNS; ENVIRONMENT; REGRESSION; SERVICES

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; Hu, Yi'na; Luo, Fanghan; Mai, Gengchen; 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, Key Lab Digital Mapping & Land Informat Applicat, Natl Adm Surveying Mapping & Geoinformat, Wuhan 430072, Peoples R China.

研究方向：Agriculture

ISSN：0308-521X

eISSN：1873-2267