摘要
对秦岭中龄华山松群落的林窗特征进行了分析.结果表明,秦岭华山松群落的林窗大小为25～160 m2;林窗形成方式中,人为采伐占63.5%;林窗制造者基部直径在10～20 cm的比例比较大,占50%;华山松群落的林窗内更新幼苗较多,林窗更新较林下更新好.
In this paper, gap characteristics of middle-aged Pinus armandii community are analyzed preliminarily. The results are as follows ： （1）The gap area of P. armandii community is between 25-160 m^2 artiffcial cutting ,which occupied 63.5%,is a familiar gap methods ; The root diameter of gap maker is between 10-20 cm ,which occupied 50% of the tatal. （2） There are more seedings in the gap than under the forest ,so the gap generation is better than that of under the forest.
出处
《西北林学院学报》
CSCD
北大核心
2005年第4期48-51,共4页
Journal of Northwest Forestry University
基金
国家林业局"十五"重点项目"陕西秦岭火地塘森林景观特征及生态功能研究"(2001-04)
关键词
华山松
群落
林窗
Pinus armandii
community
gap
