滇南热区铁刀木生物量的研究

A study on Biomass of Cassia siamea in Tropical District of Southern Yunnan

据对滇南热区铁刀木地上部分生物量的调查分析，单株主干及侧枝材约占８３％，干皮及叶约占１７％。不同经级的单株立木，８０％的带皮干材分配于树干中部以下。８６％～９５％的枝、叶集中于树干中部以上。２～３年生实生或萌生林年均每公顷产气干柴１５～６０Ｔ，单位面积产柴量超过其它速生薪材树种。

According to the investigation of Biomass of Cassia siamea on above ground por-tion in tropical district of southern Yunnan,the result are as follows:stem and branch are83% in single tree,the bark and leave are about 17%。the individual tree with diffent dia-meter class,the stem timber with bark of 80% under the middle part, 86%～95% of thebranch and leave above the middle part.Seedling forest and sprout forest of 2～3 aged pro-duce air seasoning wood 15～60T /hm2,more than other speices of fast growing fuelwood.