摘要
利用双环法对红琊山林场9种典型样地土壤的入渗规律进行了研究。结果表明:9种样地影响入渗因素中土壤含水量、容重等因子与渗透速率呈线性负相关,土壤孔隙度与渗透速率呈线性正相关。各林地渗透速率有差异,但都强于坡耕地。林地下垫面性质在某种程度上改善了土壤物理性状,间接影响到土壤的入渗速率。本研究将9块典型样地渗透能力分为4个等级:松栎混交林属于第1等级;5年生麻栎、1年生麻栎、天然林属于第2等级;马尾松林、国外松林、2年生麻栎林属于第3等级;麻栎萌发林、坡耕地属于第4等级。
Soil infiltration characteristics of nine typical plots in Hongyashan Forest Management Area were studied with the double-ring method.The results showed that soil infiltration rate was negatively correlated to soil bulk density and water content,while it was positively correlated to soil total porosity.The infiltration rates were different among the nine typical plots,but all higher than that in the slopy farmlands.The infiltration rates were divided for four grades,in which the mixed forest of Pinus elliottii and Quercus acutissima belonged to the first grade,the five year-old and the one year-old Q.acutissima stands belonged to the second grade,the P.massoniana,P.elliottii and the two year-old Q.acutissima stands belonged to the third grade,and the germinated Q.acutissima forest stands and the sloppy farmlands belonged to the fourth grade.
出处
《林业科技开发》
2010年第6期63-66,共4页
China Forestry Science and Technology
基金
国家"十一五"科技支撑项目"滁州植被恢复与特色资源高效培育与利用技术试验示范"(编号:2006BAD03A160201)
关键词
土壤入渗
双环入渗
土壤物理现状
soil infiltration
double-ring method
soil physical character
