Study on the Evolution of Forest Fragmentation and Driving Forces in Yunyang County Based on Multi-date Remote Sensing

doi:10.13466/j.cnki.lyzygl.2015.04.011

Abstract

Abstract: The evaluation of forest fragmentation is interpretation and analysis division in key forest vegetation ecological construction area and hot spots of forest vegetation change.In this paper,the forest distribution data were derived from interpreting the SPOT5 images of 2006 and 2011 based on forest inventory data in 2002 in characterize the status of forest fragmentation and its driving forces since 2002 in Yunyang country,applying the packages of Arcgis10.0 and Fragstats 4.0.Diminishing of fragmentation status at county level is significant.On the contrary,negative trend exists in partial areas due to a number of small stands and narrow gallery forest.Project afforestation and social policies are the key driving forces to accelerate forest landscape fragmentation alleviation.On the contrary,obvious deforestation and land occupation for agricultural use and urban construction are direct deterrent factors of reversed forest landscape fragmentation in the study area.It is urgent to strengthen forestry land protection and management and reduce forest loss aiming at establishment of healthy and stable forest ecosystem in Yunyang country.

Key words: multi-date remote sensing, forest fragmentation, forestry ecological programs, Yunyang County

CLC Number:

S718.5

SHI Jingjing, XIA Chaozong, YAN Enping, DANG Yongfeng. Study on the Evolution of Forest Fragmentation and Driving Forces in Yunyang County Based on Multi-date Remote Sensing[J]. FOREST RESOURCES WANAGEMENT, 2015, (4): 59-68.

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