摘要
探讨福建和溪亚热带雨林凋落物产量和地表残留物累积及其动态.结果表明;该雨林年凋落物量为755.43g/m2(年变率为1.17),其中叶为517,35g/m2,枝为191.75g/m2,花为21.76g/m2和果为24.57g/m2.影响凋落物月分布的主要因素是降雨及植物的物候期.月凋落物量(y)与月降雨量(1)呈正相关(y=46.2894+0.1206y,,r=0.5104,df=34,p<0.01).林地残留物现存累积量随季节的不同而异,平均为426.20g/m2(年分解常数K=1.87),其中叶307.64g/m2,枝106.77g/m2,花0.60g/m2和果11.19g/m2.
The litter production,residues accumulation and dynamic were studied in the subtropical rain forest in Hexi of Fujian. The results showed that: Mean annual litter fall production of the subtropical rain forest was 755. 43 g/m2 (yearly variation index 1, 17),in which the leaf,branch,flower and fruit was 517. 35, 191. 75,21. 76 and 24. 57 g/m2 respectively. Monthly distribution of litter production was mainly influenced by rainfall and phenological phase. Monthly litter fall(y) was positively correlated with rainfall (x), and regression equation was: y=46.2894+0. 1206x (r= 0. 5104, df= 34, p<0. 01 ). The standing crop of residual litter on the forest floor was various with changing season.and the mean was 426. 20 g/m2 (with annual decomposion constant 1. 87), in which the leaf, branch, flower and fruit was 307. 64, 106. 77, 0. 60 and 11. 1 9 g/m2, respectively.
出处
《厦门大学学报(自然科学版)》
CAS
CSCD
北大核心
1996年第5期795-800,共6页
Journal of Xiamen University:Natural Science