基于3S技术的南岳区植被分布图的绘制与研究

Drawing of vegetation distribution map of Nanyue based on 3S technology

为了掌握南岳区植被类型现状、分布规律及变化特征,在对该区域植被类型分布现状进行了详细调查的基础上,利用3S技术开展了南岳区植被制图的方法研究。结果表明:南岳区总面积为17 940.158 8 hm2,其中林地面积为14 411.236 0 hm2,天然林面积减小,植被有所退化,毛竹入侵,抢占了其他植被的生存空间;南岳区受人为干扰影响大,人工林面积大,其植被正在恢复过程中。该研究成果为南岳区林地保护利用规划、风景名胜区保护等提供了依据。

In order to grasp the vegetation distribution and changing characteristics of Nanyue area, the method of vegetation mapping with 3S technology was studied based on the detailed survey of the status of vegetation type. The investigation in the field and indoor interpretation has been done using SPOT5 remote sensing images, the corresponding attribute database has been established based on class investigation, vegetation distribution map of Nanyue has been drawn by ARCGIS9.3 software. The total area of Nanyue district is approximately 17 940.158 8 hm2, of the total area, forest area is about 14 411.236 0 hm2, natural forest area has reduced and the vegetation degraded, and Phyllostachys pubescens intrusion took living space from other vegetation. This district is heavily affected by human disturbance, the man-made forest took large proportion, the vegetation is now in the procedure of recovering. The findings provide a basis for planning woodland protection and utilization and the protection of landscape and famous scenery.