基于RS与GIS的麻阳河黑叶猴自然保护区植被覆盖动态变化监测研究

为了研究麻阳河保护区植被覆盖度变化情况,采用2004、2007、2010年多源遥感影像的NDVI数据,运用arcgis软件计算出保护区植被覆盖度,分析麻阳河保护区植被覆盖度变化情况。结果显示,2004～2010年保护区植被覆盖变化总趋势是低、中低植被覆盖度往中、中高植被覆盖度转化,占保护区总面积的69.04%。受到保护区下游彭水电站施工影响,只有9.17%的中高植被覆盖度转化为中低植被覆盖度。保护区森林、灌丛植被覆盖面积大,植被覆盖度趋于正向转换,呈良性恢复趋势。

Dynamic change of the vegetation coverage in the Mayang river francoisi basin with RS and GIS technology

In order to study the vegetation coverage change of Mayang River protected section,using the multi-source remote sensing image's NDVI data of 2004,2007,2010.Using ArcGIS to calculate vegetation coverage changes of the protected section to analysis the changes of Mayang River protected section's vegetation coverage changes.The results show that,during the six years since 2004 to 2010,the trend of the protected section's vegetation coverage changes is the low,middle-and-low level transform to the middle,high-and-middle level which accounts 69.04% of the entire protected section area.Affected by the construction of Pengshui hydropower station,only 9.17% of the middle-and-high vegetation coverage transform to the middle-and-low level.The area of forest and shrub vegetation is large in the protected section,vegetation coverage tends to be positive reversal and recovery well.