华东师范大学学报（自然科学版）Issue(6)：101-107,7.
浙江西天目山土壤理化性质的海拔梯度格局
Soil physical and chemical properties along altitudes of Western Tianmushan ,Zhejiang
摘要
Abstract
In recent years, ancient trees of Cryptomeria japonica var sinensis in Western Tianmushan are declining due to attacks by diseases and insect pests, which were believed to be triggered by acid deposition. The physical and chemical features of soils to provide references for this opinion was analyzed. In this study, soil samples were collected along altitude from 350 m to 1 350 m, with the interval of 200 m. At each sampling site, soil samples were collected from three layers. Soil texture, humidity, bulk density, pH value, organic matter content, contents of total nitrogen and total phosphor were analyzed. Generally, percentage of coarse particles,soil humidity and organic matter content increased with increasing altitude. Soil bulk density and pH value had a declining trend with the increase in altitude. Total nitrogen and phosphor contents had no constant trend along altitude. Compared to the data of 1986 and 1995 years, significant decrease in pH value was observed, indicating a trend of acidification. The observed soil acidification provides evidence for the rapid decline in ancient trees of Cryptomeria japonica var. sinensis triggered by acid deposition.关键词
西天目山/土壤性质/海拔/土壤酸化Key words
Western Tianmushan/ soil properties/ altitude/ soil acidification分类
资源环境引用本文复制引用
杨淑贞,马原,蒋平,焦静,朱云峰,赵明水,陈小勇..浙江西天目山土壤理化性质的海拔梯度格局[J].华东师范大学学报（自然科学版）,2009,(6):101-107,7.基金项目
浙江省林业科技攻关项目 （）
浙江省科技攻关项目 （）
浙江省临安市科委项目 （）
