“3S”技术在植被调查中的应用分析

The applied analysis of “3S” technology in vegetation investigation

现状调查是环境影响评价的组成部分,而植被的调查在以生态影响为主的项目环评中是一项非常重要的工作,其调查工作的真实性、详尽程度直接决定了后续现状评价和影响预测工作的质量。文中对现状调查的方法进行比较分析,重点论述"3S"技术在植被调查中的应用。通过实例说明"3S"技术在较大区域内的植被类型、植被指数等信息的提取及各项数据的统计分析方面的优势,并提出该方法在实际工作中存在的问题及作者的建议。

The Actuality investigation is a part of environmental impact assessment （EIA）, and the investigation of vegetation status is the main task in project EIAs based on ecological impact.This article compared present methods of vegetation investigation, discusses the application of “3S” technology in the investigation of vegetation status.The advantages of “3S” technology in extracting vegetation type, vegetation index and other information and statistical analysis of various data in a large area are illustrated by an example, and put forward the problems and suggestions in the practical work.Key Words： Actuality investigation; “3S” technology;Vegetation type;Vegetation index