高黎贡山南段2种森林类型的土壤特性研究

对设于高黎贡山自然保护区南段中山湿性常绿阔叶林的5块样地和季风常绿阔叶林3块样地的土壤进行了调查研究,结果表明:2种森林类型主要有黄红壤、黄壤、黄棕壤、棕壤4种土壤。样地土壤的有机质等养分含量丰富,而土壤盐基饱和度较低。中山湿性常绿阔叶林样地的土壤养分含量、阳离子交换量明显高于季风常绿阔叶林。2块中山湿性常绿阔叶林样地的土壤总孔隙度大于50%,通透性尚好,其余样地土壤通透性稍差,样地土壤的交换性能较好。

Study on Soil Character of Two Forest Types in Southern Part of Gaoligong Mountains

The soil character of two types of forests in southern part of Gaoligong Mountains was studied based on surveying and analyzing the soil samples of five samples plots of mid-montane moist evergreen broadleaf forest and three samples of monsoon evergreen broadleaf forest. The results showed that the major soil types of two studied forest types are four such as yellow red soil, yellow soil, yellow-brown soil and brown soil. The organic matter content of sample plots is higher, whereas the base saturation is lower. The soil nutrient and cation exchange capacity of mid-montane moist evergreen broadleaf forest are obviously higher than that of monsoon evergreen broadleaf forest. The soil total porosity of two sample plots of mid-montane moist evergreen broadleaf forest is higher than 50 %, and with fair air penetrate. The air penetrate character of other sample plots is not promising, and the cation exchange capacity is good.