尖峰岭热带林集水区一组水质背景值及水质生态效应

采用定位观测和多流域检测的方法，研究分析了尖峰岭热带要集水区不质及水质生态效应，４１个检测集水区径流７．０１≤ＰＨ〈８．０４的区域占８１％，ＰＨ值随海高度增加而减波，ＤＯ≥６．０ｍｇ／Ｌ的占９０％。随海拔高度中而增加；ＢＯＤ８≤３．０ｃｍ／Ｌ占９０％，ＴＤＳ≥１１．１ｍｇ／Ｌ占９８％，随海拔高度增加而减小，４项检测值为１类水质标准，热带山地雨林系统对雨水水质项的有效功能为：径流中ＤＯ、ＰＨ、ＴＤＳ

The Background Value and Ecological Effect of Water Quality of Tropical Forest Catchment in Jianfengling, Hainan Island

The water quality and ecological effect of tropical forest watershed were studied using the located and more watershed measuring in Jianfengling. The measured results in the 41 forest watersheds with 4 indexes of water quality show that there is high quality water in the forest watershed that is a fine natural water. The effects on water quality of tropical rainforest with water cycle were that the concentration of the BOD₅, N, P in total runoff was decreased and that of the DO, pH, TDS, Mn in total runoff was increased. The virgin forest ecosystem has purifying function on the BOD₅, N, and P in precipitation and make contents of the DO, pH, TDS in runoff achieve the high quality standard. So, the protection and expansion of virgin forest has produced beneficial effects on purification of water and health of inhabitants in forest.