森林与环境学报Issue(1)：74-80,7.DOI:10.13324/j.cnki.jfcf.2015.01.012
基于3S 的森林植被面积空间抽样方法
Study on forest vegetation area spatial sampling method based on 3S
摘要
Abstract
Taking Liaoning Province as a case and forest area in the province as the research object , which was extracted by applying MODIS data, adopting grid cells as the sampling unit , the methods of random sampling , systematic sampling and stratified sampling were conducted for sampling assumption on the forest area of the whole province .With the optimal sampling method , the second-stage sampling was facilitated , and experiments on forest area spatial sampling method was designed in different sample sizes.The sampling efficiency of stratified sampling with the percentage of forest cover of the counties as stratified symbol was the highest.Under the 8 sample sizes sampled and assumed in the second-stage sampling, when the sample size was 8 the sampling accuracy reached 95%and it needed the fewest samples .It satisfied the requirements of forest area sampling accuracy .This method reduced cost and workload of the forest resource investigation and provided reference for large regional forest area monitoring with remote sensing, geographic information system and global positioning system (3S technology).关键词
森林面积/空间抽样/遥感监测/抽样效率Key words
forest area/spatial sampling/remote monitoring/sampling efficiency分类
农业科技引用本文复制引用
王海宾,邓华锋,程志楚,刘华..基于3S 的森林植被面积空间抽样方法[J].森林与环境学报,2015,(1):74-80,7.基金项目
国家林业局林业公益性行业科研专项基金项目（201204510）。 （）
