Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (32): 184-188.doi: 10.11924/j.issn.1000-6850.2014-0327

Special Issue: 耕地保护

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The Research of Land Fragmentation Based on Landscape Pattern Index: Taking Beiyuan District in Linxia of Gansu Province as An Example

  

  • Received:2014-02-13 Revised:2014-02-13 Accepted:2014-03-19 Online:2014-11-20 Published:2014-11-20

Abstract: Using Beiyuan District in Linxia, Gansu Province as an example, the author researched the main factors of its land fragmentation and took the landscape pattern as a new perspective to construct the landfragmentation test system of the landscape pattern index, in order to reduce the agriculture production cost and the land use efficiency. Based on landscape pattern principle, the author adapted ArcGIS, Fragstats, SPSS and other software to calculate the land fragmentation index, and confirmed the main factors of land fragmentation in Beiyuan County, then constructed land fragmentation measurement system. The results showed that the five selected indexes were significant to measure land fragmentation for Beiyuan Area and could comprehensively reflect the influence of the area, shape, distribution and other factors to land fragmentation. Small average area, large amount of land parcels and complex shape were the main reasons that led to land fragmentation in Beiyuan Area. Through the research, the author constructed the land fragmentation measurement system in Beiyuan Area and calculated the land fragmentation level for 9 counties.