固氮树种在混交林中的作用研究Ⅲ.固氮树种凋落物分解及N的释放  

Role of nitrogen fixing trees in mixed forest Ⅲ. Leaf litter decomposition and its N release of nitrogen fixing tree species.

作　　者：何兴元[1] 赵淑清[1] 杨思河[1] 田春杰[1] 

机构地区：[1]中国科学院沈阳应用生态研究所

出　　处：《应用生态学报》1999年第4期404-406,共3页Chinese Journal of Applied Ecology

基　　金：中国科学院"九五"重点资助项目

摘　　要：研究了１１种固氮和非固氮树种凋落物分解及可利用态Ｎ的释放．结果表明，固氮树木凋落物中Ｎ的生物分解系数、落叶分解过程中干重的损失率及有效态氮的释放分别比非固氮树种高出１．３、１．５和８．２倍．tudies on the leaf litter decomposition and its N release of 11 N fixing and non N fixing tree species showed that the biological decay coefficient of leaf litter, the dry weight loss of leaf litter during its decay, and the N release from the leaf litter of N fixing tree species were 1.3, 1.5 and 8.2 times higher than those of non N fixing ones, respectively.

关 键 词：固氮树种 凋落物分解 N的释放 混交林 

分 类 号：S718.56[农业科学—林学] S725.2