摘要
比较研究了贵州省喀斯特峰丛洼地不同石漠化等级表层土壤（0～ 15cm）化学性质,包括pH值、有机质、全N、水解N、全P、有效P、全K、速效K等元素的含量.结果表明：各石漠化等级pH均无显著差异（P＞0.05）;随着石漠化等级的加重,土壤有机质含量明显降低;水解N、全N除强度石漠化阶段较高外,潜在石漠化到中度石漠化阶段呈递减规律;强度石漠化阶段有效P、速效K含量最高,全P含量最低,有效P、全P在其他石漠化等级下无显著差异（P＞0.05）;全K、速效K变化较为复杂无明显规律.
The pH value,organic matter,total N,hydrolytic N,total P,available P,total K,rapidly available K in the 0 ～ 15cm soil layer among the four types of rocky desertification stages in a typical Karst peak-cluster depression area of Guizhou were studied.The results showed that the pH value of all types showed no significant differences （P ＞ 0.05） ; With rocky desertification intensified,organic matter trended decreasing;Hydrolytic N and total N decreased from latent to medium rocky desertification stage,but it was the highest at strong rocky desertification stage ;There was the highest value of available P and rapidly available K at strong rocky desertification stage,but total P was the lowest,and available P and total P showed no significant differences among the other stages （P ＞ 0.05） ; Total K and rapidly available K showed more complexity.
出处
《贵州师范大学学报（自然科学版）》
CAS
2014年第2期25-28,共4页
Journal of Guizhou Normal University：Natural Sciences
基金
国家自然科学基金项目(31260572)"贵州石漠化功能灌木群繁殖行为与种群自组织更新响应机制"
贵州省自然科学基金项目[黔科合J字(2012)2280号]
贵州师范大学地理与环境科学学院学生科研重点项目
关键词
石漠化
峰丛洼地
土壤化学性质
喀斯特
rocky desertification
peak-cluster depression
soil chemical properties
Karst
作者简介
张承琴（1986-）,男,硕士研究生,研究方向：喀斯特生态环境及生物多样性研究,E-mail：zhangchengqin1986@163.com.
