华东师范大学学报（自然科学版）Issue(4)：53-60,8.DOI:10.3969/j.issn.1000-5641.2011.04.006
浙江天童森林退化和受损对土壤呼吸的影响
Impacts of forest degradation and damage on soil respiration in the Tiantong region, Zhejiang Province
摘要
Abstract
This paper chose climax evergreen broadleaf forests (EBLF) as a reference, then selected sub-climax forests, secondary coniferous forests, shrubs and grassland to represent different stages of forest degradation, and 4 logging stands to denote forests damage intensity, in the Tiantong region, Zhejiang province. To understand the impacts of EBLF degradation and damage on soil respiration, soil respiration rate and associated influencing factors were measured among above forests. The results showed that: (1) there was a pronounced seasonal pattern of soil res-piration among forests; (2) soil respiration rate was the highest in climax EBLF and the grassland, intermediate in coniferous forests and shrub lands,and the lowest in sub-climax EBLF; (3) the logging did not affect soil respiration rate along the forest damage intensity; and (4) soil respiration was determined by soil C/N ratio and soil pH through forest degradation series; specifically, the main factor in the early stage was soil C/N ratio, and in the later stage of degradation was soil temperature. It was concluded that the controlling factor of soil respiration was shifted from biological-based to abiotic-based orientations, through forest degradation.关键词
森林退化/土壤性质/碳汇/碳源/碳循环Key words
forest degradation/ soil properties/ carbon sink/ carbon source/ carbon cycling分类
农业科技引用本文复制引用
郭明,康蒙,仲强,王希华,达良俊,阎恩荣..浙江天童森林退化和受损对土壤呼吸的影响[J].华东师范大学学报（自然科学版）,2011,(4):53-60,8.基金项目
国家自然科学基金委中日韩A3前瞻计划项目 （）
国家自然科学基金面上项目(30770365) （30770365）
