浙江山地森林枯落物(层)的生态水文效应

A Preliminary Investigation on the Effects of Ecohydralogy of Litter in Mountain Forests in Zhejiang

山地森林枯落物(层)在维护地力、涵养水源、保土防冲方面,具有重要的生态水文效应。森林类型不同,其枯落物的吸水速度和持水能力也不相同。其吸水速度在开始1小时内很快,能迅速达到饱和或接近饱和状态,以后则增长很慢或完全停止。根据风干枯落物浸水试验,经历不同的时间,其持水量和吸水率(%)的大小,可以较清楚地说明浙江省山地不同森林类型森林桔落物(层)生态水文的效应,其测试数值,可供森林生态学、森林水文学以及自然保护等方面理论研究和实践工作的参考。

In mountain forests of the subtropical region litter plays an important role in the conservation of water and soil. The rate of water absorption and the capacity of water-holding of litter vary with different types of forest. At the beginning (within one hour) the velocity of water absorption of litter is very fast, but gradually it becomes slower and slower as it is nearly saturated with water. The data of the weight of dry litter, the waterholding capacity of litter and the percentage of water absorption can be distinctly showed the effects of ecohydralogy of litter in mountain forests and they may be also used on the study of forest ecology, forest hydralogy and the preservation of nature.