The hydrological characteristics of the litter and soil in three different forest successional stages as coniferous forest,coniferous and broad-leaved mixed forest,and deciduous broad-leaved forest (8 forest stands) were studied in Taizishan forest farm,central Hubei,by using the method of substituting time with space.The results showed that the coniferous and broad-leaved mixed forest had the biggest total litter amount(9.76～12.01 t/hm2),the maximum water holding ratio of the litter in deciduous broad-leaved forest was the highest.The effective retain capacity of litters under coniferous and broad-leaved mixed forests and deciduous broad-leaved forests were greater.And there were no significant differences between them.The effective retain capacity of the litter in Quercus acutissima mixed stand was the biggest,reaching to 16.81 t/hm2.In different successional periods,the order of NCWHC(non-capillary water-holding capacity) and MWHC(maximal water-holding capacity) below the depth of 0-40 cm soil layer was as follows:Coniferous forest ＜coniferous and broad-leaved mixed forest ＜deciduous broad-leaved forest.Water-holding capacity of soil under Quercus acutissima mixed stand was the highest(2 145.8 t/hm2).In conclusion,the deciduous broad-leaved forest was optimal among three forest types in terms of water conservation,suggested that during the restoration of forest vegetation in study area deciduous broad-leaved forests should be improved in the process of the forest succession.
国家科技期刊平台
NSTL
万方数据
维普
