玉龙雪山南段主要森林群落表层土壤水分的时空变化研究  

Spatial and Temporal Patterns of the Surface Soil Moisture in Southern Jade Dragon Snow Mountain Forest Ecosystem

作　　者：高富[1] 和荣华 刘德团[1] 刘维暐[1] 陈智发[1] 吴之坤[1] 黄华[1] 陈小灵[1] 许琨[1] 

机构地区：[1]中国科学院昆明植物研究所丽江森林生态系统研究站,云南丽江674100 [2]云南省玉龙雪山自然保护区管理局,云南丽江674100

出　　处：《西部林业科学》2013年第4期87-90,共4页Journal of West China Forestry Science

基　　金：国家科技战略先导专项项目(XDA05050000-XDA0505020605)资助

摘　　要：2012年8～12月以玉龙雪山南段东向坡主要森林群落云南松群落及杜鹃林群落表层(0～20 cm)土壤水分时空变化为研究对象,用时域反射仪(TDR)法获取表层土壤水分数据,用MS-EXCEL软件对数据进行分析。结果表明,玉龙雪山南段主要森林群落表层土壤水分含量值在空间变化上表现为坡顶位置最高,坡底位置次之,坡中段水分含量较低;在时间变化上,坡面表层土壤水分含量表现为下降趋势,其中8～10月变化较为平缓,11～12月持续干旱,土壤含水量显著下降。研究结果对区域水分平衡研究及生物多样性保护具有参考价值。Choosing the Pinus yunnanensis communities and Rhododendron spp. communities located at southern part of the Jade Dragon Snow Mountain as the study materials, the spatial and temporal patterns of surface soil mois- ture in the forest ecosystem were studied. The data on surface soil moisture values were gathered via time domain reflectomery, and the data were analyzed using MS-EXCEL. The study results showed that spatially, the higher lo- cation of the slope had the highest value of surface soil moisture, next came the foot of the slope, while the surface soil moisture of the middle part of the slope was the lowest. Temporally, the surface soil moisture showed an obvi- ous decrease tendency, among which, the change from August to October was smooth, November to December was continuously dry, the soil surface moisture significantly decrease.

关 键 词：玉龙雪山 森林群落 表层土壤水分 

分 类 号：S152.7[农业科学—土壤学]