摘要
在对相同条件下的华山松纯林和混交林各主要生态因子及主要病虫害调查研究的基础上 ,以系统论思想为先导 ,结合生态学、生物学和森林保护学的理论 ,对调查结果进行了系统分析 ,得出 :华山松纯林树种单一 ,而华山松混交林树种复杂且林下植被较华山松纯林丰富 ,因此 ,引起各自系统内温度、湿度、土壤性状、动植物分布、昆虫种类等生态因子变化 .纯林与混交林生态效应发生显著差异 。
The investigations on the maion ecological factors and insect and disease status in mixed and monocultured stands of Pinus armandii growing under the same site conditions were made.The results were systematically analyzed in line with the theories of ecology,biology and forest protection.The data showed that mixed stand of P.armandii had richer biodiversity than that of monocultured stand in terms of underlayer plant species,which caused the differences between two stands in the aspects of temperature,moisture,soil properties,distribution of flora and fauna and species of insects in the system.
出处
《西南林学院学报》
1999年第3期156-160,共5页
Journal of Southwest Forestry College
基金
云南省重点基金资助项目!(95C004Z)
关键词
华山松
纯林
混交林
生态效应
Pinus armandii
Monocultured stand
Mixed stand
Ecological effect
