白龙江干旱河谷灌丛群落类型与土壤持水特性  

Main Shrub Community Types and Soil Water Holding Characteristics in Bailong River Arid Valley

作　　者：陈林生 张岚琦 宋占邦 王龙江 张海龙 齐孝华 奚淑 CHEN Lin-sheng;ZHANG Lan-qi;SONG Zhan-bang(Institute of Ecological Monitoring and Survey and Planning,Bailongjiang Forestry Administration,Lanzhou,Gansu 730070)

机构地区：[1]甘肃省白龙江林业生态监测和调查规划院,甘肃兰州730070

出　　处：《安徽农业科学》2022年第22期111-113,163,共4页Journal of Anhui Agricultural Sciences

摘　　要：通过对白龙江干旱河谷区不同灌丛种群调查研究表明,河朔荛花、川甘亚菊、小叶香茶菜、西南野丁香、荆条和胡枝子盖度在51.8%~62.1%,其中河朔荛花种群最小,荆条种群最大;植株含水率表现为川甘亚菊>胡枝子>西南野丁香>荆条>小叶香茶菜>河朔荛花,川甘亚菊种群最大(58.8%),河朔荛花种群最小(47.1%);土壤含水率在15.6%~21.8%,土壤含水率与植株含水率无显著相关性,土壤水分是该地区限制植物生长的主要因子之一。The investigation of different shrub population in the arid valley area of Bailong River showed the coverage of Wikstroemia chamaedaphne Meisn,Ajania potaninii,Rabdosia parvifolia(Batalin)Hara,Leptodermis purdomii Hutch,Vitex negundo var.heterophylla and Lespedeza daurica ranged from 51.8%to 62.1%.Among them,the population of Wikstroemia chamaedaphne Meisn was the smallest,and the population of Vitex negundo var.heterophylla was the largest.The natural water content of the plant was as follows:Ajania potaninii>Lespedeza daurica>Leptodermis purdomii Hutch>Vitex negundo var.heterophylla>Rabdosia parvifolia(Batalin)Hara>Wikstroemia chamaedaphne Meisn.The population of Ajania potaninii was the largest(58.8%),and the natural water content of Wikstroemia chamaedaphne Meisn was the smallest(47.1%).The soil water content was between 15.6%and 21.8%.There was no significant correlation between the soil water content and the natural water content of the plant.Soil water was one of the main factors limiting plant growth in this area.

关 键 词：干旱河谷 白龙江 不同灌丛 持水特性 

分 类 号：S718.5[农业科学—林学]