摘要
通过对越桔—偃松矮曲林经营试验和进行松籽产量调查,进行了经营对其松籽产量影响的分析。结果表明:疏伐经营可有效促进偃松的开花结实,提高松籽的产量和质量;保留木的覆盖度与单位面积的松籽产量关系密切;疏伐经营促进结实的主要影响因子是光照,其次是地面温度等因子;越桔—偃松矮曲林经营最佳的保留木覆盖度为60%。
Through the experiments of Vaccinium vitis-idaea--Pinu, pumila elfin forest and investigations on pine-nut yield, the effect of management on pine-nut yield was analyzed. The results show that thinning management can accelerate flowering and bearing effeetively and increase pine-nut yield and quality. Main affecting factors of thinning management accelerating bearing is illumination. Next are ground temperature and other factors; the optimal reserved trees coverage of Vaccinium vitis-idaea--Pinus pumila elfin forest is 60%.
出处
《防护林科技》
2007年第6期7-8,共2页
Protection Forest Science and Technology
关键词
偃松
经营
松籽产量
Pinus pumila
management
pine-nut yield
