江西农业大学学报Issue(3)：454-460,7.DOI:10.13836/j.jjau.2015071
马尾松木荷不同比例混交林枯落物和土壤持水性能比较分析
A Comparison on Water-holding Capacity of Forest Litter and Soil of Mixed Forests of Pinus massoniana and Schima superba in Different Proportions
摘要
Abstract
To analyse the function of water conservation of forest litter and soil of mixed forests in different mixing proportions of Pinus massoniana and schima superba,4 types-typeⅠ( ten Pinus massoniana) ,type Ⅱ( eight Pinus massoniana and two Schima superba) ,typeⅢ( seven Pinus massoniana and three Schima super-ba) and typeⅣ( six Pinus massoniana and four Schima superba) ,which were divided according to the propor-tions of tree species,were selected to set the typical sample plots to compare and analyse the water-holding ca-pacity of the litter and soil.The results were as follows:(1) The existing litter amount,maximum water-holding rate,maximum water-holding capacity and effective water-holding capacity of the type Ⅳ were the largest,re-spectively up to 4.58 t/hm2 ,230.44%,10.56 t/hm2 and 7.40 t/hm2 ,significantly higher than those of the other types ( P<0.05) .The effective water-holding rates of litter were in the order of typeⅣ>typeⅢ>typeⅡ>typeⅠ,except for type Ⅳand typeⅢ,there were significant differences in effective water-hold rate among other types (P<0.05).(2) The maximum soil water-holding capacity,capillary water holding capacity and non-cap-illary water holding capacity of soil were in the order of typeⅣ> typeⅢ> typeⅡ>typeⅠ.There were no sig-nificant differences in the maximum water-holding capacity and capillary water holding capacity among each type( P>0.05) .There were significant differences the non-capillary water holding capacity among each type( P<0.05) ,except for type I and typeⅡ.Comprehensive analysis showed that the water-holding capacity of forest litter and soil in mixed forests was stronger than in pure forests,and increased with the proportion of Schima su-perba in Pinus massoniana forest,typeⅣwas the best;replanting broadleaf species in Pinus massoniana forest could effectively improve the function of water conservation of forest.关键词
马尾松/混交林/枯落物/土壤/持水性能Key words
Pinus massoniana/mixed forests/litter/soil/water-holding capacity分类
农业科技引用本文复制引用
殷沙,赵芳,欧阳勋志..马尾松木荷不同比例混交林枯落物和土壤持水性能比较分析[J].江西农业大学学报,2015,(3):454-460,7.基金项目
国家自然科学基金项目 （）
