南京信息工程大学学报2012，Vol.4Issue(4)：326-329,4.
紫金山不同海拔高度土壤的碳氮分布特征
Distribution characteristics of soil carbon and nitrogen in different altitude of Purple Mountain
摘要
Abstract
As important factors affecting terrestrial ecosystems,organic carbon and nitrogen can maintain and enhance soil carbon and nitrogen reserves,which is the key to ecosystem productivity. Soil samples were taken in different altitudes in Purple Mountain,and organic carbon and total nitrogen content were determined using routine analytical methods. The results show that the soil organic carbon and nitrogen contents vary with covering vegetation,which is largest in mingled forest and smallest in meadow. The soil organic carbon and nitrogen increase with altitude,while the ratio of carbon to nitrogen decreases with altitude. Significant linear relationship exists between organic carbon and total nitrogen,which suggests that the nitrogen is mainly existed in soil organic matter in organic form. The study is hoped to provide scientific references for ecological and environmental protection in Purple Mountain.关键词
紫金山/不同海拔高度/土壤/有机质/全氮Key words
Purple Mountain/different altitude/soil/organic matter/total nitrogen分类
农业科技引用本文复制引用
朱红霞,王艳玲,张耀鸿,周晓冬..紫金山不同海拔高度土壤的碳氮分布特征[J].南京信息工程大学学报,2012,4(4):326-329,4.基金项目
江苏省农业气象重点实验室开放基金(JKLAM201203) （JKLAM201203）
国家自然科学基金(40901146) （40901146）
