生态科学2018，Vol.37Issue(6)：60-66,7.DOI:10.14108/j.cnki.1008-8873.2018.06.008
四种南方常见速生树种凋落叶浸泡实验研究
Comparative study on soak characteristic of litters in four different southern fast-growing tree species
摘要
Abstract
In order to investigate the soak characteristic of litters in southern fast-growing tree species, this experiment used pine, China fir, eucalyptus and Castanopsis hystrix to study the water quality alteration of them.The results showed that pH value of soak solution of eucalyptus was lower than others, and odour was stronger and more durable.Meanwhile the chromaticity color was very high in the beginning of the immersion, but decreased with the increase of soaking time, in the end lower than soak solution of Castanopsis hystrix leaves.The values of TN, TP and TK were all followed the same rules as release-accumulation-release, with no significant difference.In addition, humic acid content affected the value of pH to a certain extent, but did not directly related to chromaticity color or odour.The immersion fluid soon turned black due to soak eucalyptus leaves in the water.This may explain why eucalyptus artificial forests occur black water pollution by accident.On the other hand, soak solutions of pine and Castanopsis hystrix smell firstly, but the intensity gradually decreases.Only the odour of soak solution of eucalyptus has remained constant during the experiment.关键词
速生树种/桉树/凋落叶/黑水Key words
quick growing species of trees/eucalyptus/leaf litter/water black分类
农业科技引用本文复制引用
伍琪,任世奇,项东云,陈健波,邓紫宇,郭东强..四种南方常见速生树种凋落叶浸泡实验研究[J].生态科学,2018,37(6):60-66,7.基金项目
广西优良用材林资源培育重点实验室自主课题(16-A-04-03) （16-A-04-03）
广西林科院基本科研业务费项目(林科201604号) （林科201604号）
广西林业科技项目(桂林科字[2016]第30号) （桂林科字[2016]第30号）
