摘要
以黑龙江省佳木斯市孟家岗林场的长白落叶松中龄林为研究对象,在2012年进行林隙间伐(5 m×5 m、7 m×7 m、10 m×10 m),并于2013年和2014年选择0~10 cm、10~20 cm、20~40 cm的土层进行取样,测定土壤的物理性质,其结果表明:林隙间伐能够改善长白落叶松中龄林土壤的物理性质,林隙7 m×7 m的林分,改善了土壤的松散程度,使容重减小,提高土壤毛管孔隙度,持水能力增强。
3 kind gaps(5 m×5 m、7 m×7 m、10 m×10 m)were thinned in middle age Larix olgensis of Meng Jiagang forest in Heilongjiang province, 0~10 cm, 10~20 cm, 20~40 cm three soil layers were selected for sampling. The results of the physical properties of the soil showed that: Gap thinning can improve the physical properties of middle age Larix olgensis. The conclusion of gap thinning of 7m×7m could improve the degree of soil looseness, reduce the capacity,improve the porosity of soil capillaries, enhance the water holding capacity provide a theoretical basis for the natural transformation in middle age Larix olgensis.
作者
李严寒
孙楠
LI Yanhan(Lilin Forestry Bureau of Forestry Science Academy of Heilongjiang Province, Yichun 153000)
出处
《林业科技》
2019年第3期26-28,共3页
Forestry Science & Technology
基金
黑龙江省青年基金项目(QC2018024)
关键词
林隙
长白落叶松
土壤
物理性质
Gap thinning
Larix olgensis
Soil
Physical properties