摘要
运用Lieth法估算广西森林气候生产潜力 ,并结合实测生物量进行研究表明 :广西森林气候可能生产力显示TSPt(2 2 .5 8t·hm-2 ·a-1) >TSPn(18.90t·hm-2 ·a-1) >TSPv(17.99t·hm-2 ·a-1) ;其产量的地域分布为TSPt 和TSPv 显示桂南 >桂中 >桂北 ;而TSPn 则显示桂北 >桂南 >桂中。广西森林主要树种的实际生产力均值为 6 .4 5t·hm-2 ·a-1,分别占TSPt、TSPn、TSPv 估测值的 2 8.6 %、34.1%、35 .9% ;实际光能利用率均值为 0 .30 % ,仅占理论估测值的 37.5 %。
This paper,using the method of Lieth,comparies the forest climate potential productivity with the reality potential productivity in Guangxi. The results show:The order of the potential productivity of forest climate average is TSP t(22.58t·hm -2 ·a -1 )> TSP n(18.90t·hm -2 ·a -1 )> TSP v(17.99t·hm -2 ·a -1 )in Guangxi. The order of the output of TSP t and TSP v is South Guangxi > Central Guangxi > North Guangxi ,and the order of the output of TSP n is North Guangxi > South Guangxi >Central Guangxi . The real potential productivity average is 6.45t·hm -2 ·a -1 ,making 28.6%,34.1% and 35.9% of TSP t,TSP n and TSP v respectively. The real efficiency of energy conversion average is 0.30%,making 37.5% of the theoretical value. So the potential productivity is very large.
出处
《江西农业大学学报》
CAS
CSCD
2002年第3期355-359,共5页
Acta Agriculturae Universitatis Jiangxiensis
关键词
森林气候
可能生产力
实际生产力
广西
经济产量
climate potential productivity
reality potential productivity
forest in Guangxi