Progressive landscape fragmentation in relation to cash crop cultivation

作者: Shiliang Su , Chenxue Yang , Yína Hu , Fanghan Luo , Yaping Wang

DOI: 10.1016/J.APGEOG.2014.06.002

关键词:

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

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