| 贵州喀斯特峰丛洼地不同石漠化等级土壤化学性质特征 |
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| 引用本文： | 张承琴,王普昶,龙翠玲,陈 莹.贵州喀斯特峰丛洼地不同石漠化等级土壤化学性质特征[J].贵州师范大学学报(自然科学版),2014(2):25-28. |
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| 作者姓名： | 张承琴 王普昶 龙翠玲 陈 莹 |
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| 作者单位： | [1]贵州师范大学地理与环境科学学院,贵州贵阳550001 [2]贵州省草业研究所,贵州贵阳550006 |
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| 基金项目： | 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. |
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| 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(P0.05);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(P0.05);全K、速效K变化较为复杂无明显规律。
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| 关 键 词： | 石漠化 峰丛洼地 土壤化学性质 喀斯特 |
Soil chemical properties of different grade pocky desertification in Karst Peak-cluster depression area of Guizhou |
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| ZHANG Chengqin,WANG Puchang,LONG Cuiling,CHEN Ying.Soil chemical properties of different grade pocky desertification in Karst Peak-cluster depression area of Guizhou[J].Journal of Guizhou Normal University(Natural Sciences),2014(2):25-28. |
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| Authors: | ZHANG Chengqin WANG Puchang LONG Cuiling CHEN Ying |
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| Institution: | (School of Geography and Environment, Guizhou Normal University, Guiyang, Guizhou 550001, China;Guizhou Institute of Prataculture, Guiyang, Guizhou 550006, China) |
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| Abstract: | 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. |
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| Keywords: | rocky desertification peak-cluster depression soil chemical properties Karst |
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