辽东山地核桃楸天然次生林林地蓄水入渗能力试验  

Experimental of Liaodong mountain Juglans mandshurica natural secondary forest woodland ability of reservoir infiltration

作　　者：吴祥云[1] 李文超[1] 何志勇[1] 王丽丽 任杰[1] 刘梦旅[1] 付玉[1] 

机构地区：[1]辽宁工程技术大学环境科学与工程学院,辽宁阜新123000 [2]阜新市林业科技园区,辽宁阜新123000

出　　处：《辽宁工程技术大学学报（自然科学版）》2013年第11期1501-1504,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：国家水体污染控制与治理重大科技专项课题资助项目(2012ZX07202008-1)

摘　　要：为研究辽宁东部山地胡桃楸天然次生林林地蓄水入渗能力,进行了试验研究.结果表明:胡桃楸天然次生林枯落物层厚度越大,持水能力及蓄水能力越强;林地坡度与土壤容重、林分密度、土壤的非毛管孔隙度均呈正相关,坡度是影响林地枯落物持水、土壤贮水、水分入渗的一个主导因素.林地土壤水分入渗可分为瞬变、渐变、稳变3个阶段;在土壤水分入渗过程中,枯落物层具有保护土层缓存降水的作用,间接地增加了林地的蓄水能力.To research in Liaodong mountain Juglans mandshurica natural secondary forest woodland ability of reservoir infiltration were studied. The results show that the thicker the Juglans mandshurica natural secondary forest litter, the stronger the water holding capacity. The forest land gradient and soil bulk density, stand density and soil non-capillary porosity were positively correlated. The slope is a dominant factor which effects the forest litter water-holding, soil water storage and water infiltration. Woodland soil infiltration can be divided into three stages:the transient process, the gradual process and the transition process. In the water infiltration process, the litter layer plays a role to protect the soil cache precipitation, thus increases the infiltration capacity of the soil water storage indirectly.

关 键 词：胡桃楸 天然次生林 枯落物 持水量 水源涵养能力 

分 类 号：S715[农业科学—林学]