不同经营模式下毛竹林土壤水分物理性质比较

Comparison of Soil Water Physical Properties in Different Phyllostachys Pubescens Management Model

通过对建阳市黄坑镇毛竹笋用林、毛竹材用林、毛竹油茶混交林、毛竹杉木混交林、毛竹油桐混交林等5种林分类型的土壤水分物理性质差异的分析,结果表明：毛竹杉木混交林的土壤容重最小,其次是毛竹材用林、毛竹油茶混交林、毛竹油桐混交林,而毛竹笋用林的土壤容重最大。5种经营方式下毛竹林的总孔隙度的范围在50.80V%～69.75V%。表层土壤的最大持水量和毛管持水量的平均值呈现出毛竹杉木混交林〉毛竹油茶混交林〉毛竹材用林〉毛竹笋用林〉毛竹油桐混交林的规律。

The soil physial properties among Phyllostachys heterocycla forests in Huangkeng town of the Jianyang city were analyzed in this paper. The results showed that the buck densities of the soil were in ascensive order as follow, mixed forest of Phyllostachys heterocycla and Cunninghamia lanceolata〈timber -forests of Ph yllostach ys heteroc ycla 〈mixed forest of Ph yllostachys heteroc ycla and Camellia olei f era 〈mixed forest of Phyllostachys heterocycla and Vernicia fordii 〈shoot-use stand of Phyllostachys heterocycla. Soil total porosity of 5 different management models from 50.80V% -69.75V%, and non capillary porosity occupied nearly 1/5-2/7 of total porosity. The max moisture capacity, the capillary moisture capacity of the soil were in descensive order as follows, mixed forest of Phyllostachys heterocycla and Cunninghamia lanceolata〉mixed forest of Phyllostachys heterocycla and Camellia oleifera〉timber-forests of Phyllostachys heterocycla 〉 shoot-use stand of Phyllostachys heterocycla 〉 mixed forest of Phyllostach ys heterocycla and Vernicia fordii.