摘要
首先提出了研究衡山土壤酸化较为科学有效的方法,然后选取衡山不同垂直带谱上5个代表性地点不同年代的土壤样品,实验分析土壤酸度和酸缓冲能力的时空变化,最后得出土壤酸化年限和土壤酸化特点。就Ah层来说,衡山5个代表性地点的土壤酸化年限分别为:上封寺土壤5.2a,南天门土壤5.5a,铁佛寺土壤>100a,半山亭土壤23.7a,玉板桥土壤19.2a。衡山土壤酸化有两个特点:①衡山高海拔和低海拔土壤酸化进程快于中海拔土壤,即"两头快,中间慢";②衡山土壤酸化是一个由表及里的过程。
Based on five soil-samples in five representative sites of Mt. Hengshan at different altitudes and ages,the paper analyses the time and space changes of Mt. Hengshan's soil acidityand soil acid-buffer ability One characteristic of the Mt. Hengshan's soil acidification is that the speeds of soil acidification at high altitudes and low altitudes are quicker than that at middle altitudes. The other characteristic is that the process of soil acidification is from soil surface to Subsoil.
出处
《土壤通报》
CAS
CSCD
北大核心
2004年第5期599-603,共5页
Chinese Journal of Soil Science
基金
湖南省教委资助课题(湘教通1993-172-23)补充部分
关键词
土壤酸化
酸缓冲能力
酸害容量
酸害容量年降低率
衡山
Soil acidification
Soil acid-buffer ability
Soil acid-damage capacity
The year-decrease-rate of soil acid-damage capacity
Mt. Hengshan
