滇中重要水源区迤者小流域土壤水分入渗性能研究  

Study on Soil Water Infiltration Performance in the Small Watershed of the Important Water Source Area in Central Yunnan area in central Yunnan

作　　者：张继辉 Zhang Jihui(College of Ecology and Soil ＆Water Conservation, Southwest Forestry University, Kunming, Yunnan, 650224, Chin)

机构地区：[1]西南林业大学生态与水土保持学院,云南昆明650224

出　　处：《绿色科技》2018年第8期28-30,共3页Journal of Green Science and Technology

摘　　要：为探讨滇中重要水源区迤者小流域的土壤水分入渗性能,以小流域中的林地、林改坡地、坡耕地为研究对象,利用单因素方差分析法,对3种不同地类的土壤水分入渗性能进行了研究。结果表明:土壤渗透性能的强弱排序为:林地>林改坡地>坡耕地。具体表现如下,从初始入渗速率来看:林地(1.57mm/s)>林改坡地(0.92mm/s)>坡耕地(0.83mm/s),而稳定入渗率除林地入渗速率变化较大外其他两种地类相差不大;平均饱和导水率的大小顺序为:林地(38.79cm/min)>林改坡地(15.15cm/min)>坡耕地(8.38cm/min)。In order to investigate the water infiltration performance of the Yizhe small watershed in the important wa ter source area of Central Yunnan, the forest land, the forestation slope and the slope farmland in the small watershed were taken as the research object. One--way analysis of variance was used to analyze three types of land types. The soil water infiltration performance of three different land types were studied. The results showed that the soil infiltration performance was ranked as： forest land 〉 forest land change slope 〉 farmland. The specific performance is as follows： From the initial infiltration rate： forest land （1.57 ram/s） 〉 forest land change slope （0.92 mm/s） farmland （0.83 mm/s）, and the steady infiltration rate except woodland infiltration rate is larger while there is no significant difference between the other two land types; The order of average saturation conductivity was： forest land （38.79 cm/min） 〉 forest land change slope （15.15 cm/min） 〉 slope farmland （8.38cm /min）.

关 键 词：迤者小流域 土壤渗透性能 不同土地利用类型 单因素方差分析 

分 类 号：S152[农业科学—土壤学]