云南典型石漠化地区土壤结合态腐殖质分布特征研究  

Distribution Characteristics of Humus Combined Forms of Typical Rocky Desertification Soil in Yunnan Province

作　　者：黄晨元 刘建祥[1,2] 张叶飞 秀洁 李伞剑 HUANG Chen-yuan;LIU Jian-xiang;ZHANG Ye-fei;XIU Jie;LI San-jian(School of Geography and Ecotourism Southwest Forestry University,Kunming Yunnan 650224,P.R.China;Collage of Ecology and Environment,Southwest Forestry University,Kunming Yunnan 650224,P.R.China;Engineering Research Center of Stony Desertification Prevention in Universities of Yunnan Province,Kunming Yunnan 650224,P.R.China)

机构地区：[1]西南林业大学地理与生态旅游学院,云南昆明650224 [2]西南林业大学生态与环境学院/石漠化研究院,云南昆明650224 [3]云南省高校石漠化防治工程研究中心,云南昆明650224

出　　处：《西部林业科学》2022年第2期138-144,共7页Journal of West China Forestry Science

基　　金：国家自然科学基金青年项目(31901206);云南省科技厅农业联合专项(2018FG001-078、2018FG001-050)。

摘　　要：为揭示云南典型石漠化地区土壤理性质特征及演变趋势,以云南省典型石漠化地区土壤为研究对象,分别测定和分析潜在、轻度、中度、重度4个石漠化程度土壤的腐殖质结合态分布特征和理化指标之间的相互关系。结果显示:该地区土壤腐殖质主要以松、紧结合态为主,土壤理化指标随石漠化程度呈严格规律变化,总有机碳及4种腐殖质结合态含量为潜在>轻度>中度>重度;相关性分析表明,全氮、总有机碳、全磷与4种腐殖质结合态相互之间存在极显著正相关,且均与石漠化程度有明显的相关性。研究结果表明,土壤理化指标、结合态腐殖质含量能较好地反映石漠化程度,研究结果可为生态恢复提供数据参考。In order to reveal the characteristics and evolution trend of soil physical and chemical properties in typical rocky desertification area of Yunnan province, this article was based on typical rocky desertification soil in Yunnan province, measuring the characteristics of humus combination forms and soil physical and chemical properties of the four grades of rocky desertification soils(potential, mild, moderate and severe).The mutual relationship between the distribution of the humus combination forms and the soil physicochemical indexes was analyzed.The results showed that the soil humus in this area were mainly loose and tightly humus;The physical and chemical indexes of soil changed regularly according to the degree of rocky desertification;The contents of total organic carbon and four binding states were potential>mild>moderate>severe.Correlation analysis showed that total nitrogen, total organic carbon and total phosphorus were significantly positively correlated with the four humus combined forms, and were significantly correlated with the degree of rocky desertification.The study indicated that the physical and chemical indexes of soil and the content of combined humus could reflect the degree of rocky desertification well.

关 键 词：石漠化 结合态腐殖质 相关性 有机碳 云南 

分 类 号：S714[农业科学—林学]