摘要
通过对四川沐川县天然林、人工林(水杉林)枯落物蓄积量调查分析和持水特性的研究结果表明:枯落物蓄积量为天然林>人工林(25.7 t·hm-2>18.1 t·hm-2),最大持水量为天然林>人工林(75.0 t·hm-2>47.0 t·hm-2),最大持水率为天然林>人工林,各时段吸水量、吸水速率表现为天然林>人工林,有效拦蓄量表现为天然林>人工林(28.6 t·hm-2>17.0 t·hm-2)。总体分析可以看出,天然林落物层保水功能相对要比人工林好。
Investigations and analysis were made of the reserves of litter and its water retention character- istics in natural forest and artificial forest in Muehuan county, Sichuan. The results showed that litter re- serves were natural forest 〉 artificial forest（25.7 t · hm-2 〉 18. 1 t ·hm-2） ;Maximum water retention capacity was natural forest 〉 artificial forest（75.0 t· hm-2 〉 47.0 t· hm-2） ;Maximum water retention ratio, water absorption and water absorption speed were natural forest 〉 artificial forest; Effective retaining content was natural forest 〉 artificial forest（28.6 t · hm-2 〉 17.0 t · hm-2）. In general, water conserving function of natural forest was better than that of artificial pinust abulaeformis forest.
出处
《四川林业科技》
2013年第5期65-68,共4页
Journal of Sichuan Forestry Science and Technology
关键词
天然林
人工林
枯落物
保水功能
Natural forest, Artificial forest, Litter, Water conserving function
