区域森林植被碳贮量动态变化研究——以洛宁县为例

On Forest Vegetation Stocks and Dynamic Change——A Case Study of Luoning County

森林类型及其景观格局变化都会影响森林的碳库贮量。通过分析河南省洛宁县1983、1999年森林植被类型图和1999年5月的TM影像图,可知本区森林面积从1983年的56320hm2增加到1999年的84750hm2。使用植被碳贮存数据的相关研究结果,估算了本区的植被碳存量的变化,由1983年1704180kgC增加到1999年的2727600kgC,表明研究区是一个小碳汇区。

Change of forest landscape pattern is a important effect on forest carbon store. Using vegetation types maps of 1983, 1999 and land sat TM of 1999 of Luoning County in the middle of Yiluo River Basin ,we analysised the area changes of different forest vegetation types and the results showed that the total area increased from 56 320 hm^2 in 1983 to 84 750 hm^2 in 1999. The vegetation carbon reserves varied from 1 704 180 kgC in 1983 to 2 727 600 kgC in 1999 by using the published data about carbon stocks in vegetation. It showed that it is a carbon pools in the last 20 years.