矢量数据格网化在蓄积量变化分析中的应用  

Application of conversion from vector data to grid data in changes of volume

作　　者：胡开[1] 石军南[1] 

机构地区：[1]中南林业科技大学林业遥感信息工程中心,湖南长沙410004

出　　处：《中南林业科技大学学报》2011年第7期156-159,共4页Journal of Central South University of Forestry & Technology

基　　金：国家十一五科技支撑项目(2006BAD23B02)

摘　　要：基于1999年和2009年两期广西贺州市八步区森林资源二类调查小班矢量数据对比分析中出现的因小班大小、形状、面积不同而无法进行空间位置对比分析的问题,引入小班矢量数据格网化的方法,读取地理位置对应点的两期信息,实现同一区域空间位置两期数据的直接对比分析,并根据对比分析差值制出蓄积量变化图,更加直观显示蓄积量空间位置的变化,研究结果对各种森林经营方案的编制与林业生产活动的运作具有指导意义。In the light of the problems that appeared during the vector date contrasting analysis which was based on the second research on the forest reserves of Hezhou, Guangxi which was did in 1999 and 2009, the differences of small area vector data in size, shape, and area caused the difficulties on space and place contrasting analysis. Through the method of introducing small-class-based vector data, the direct contrasting analysis of the same areas space-place and the two periods date were realized, furthermore, according to the analyzing differences, a table indicating the change of saving-up volume, which shows the space-place alteration of saving-up volume more directly was made out and the results have guiding signifincance for compiling forest management plan and operating forestry production activities.

关 键 词：矢量数据 格网化 森林蓄积量 变化分析 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置] S758.51[自动化与计算机技术—控制科学与工程]