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热带山地雨林生态系统的水分生态效应——冠层对暴雨势能的消减、暴雨养分贮存 被引量:8

HYDRO ECOLOGICAL EFFECT OF TROPICAL MOUNTAIN RAINFOREST ECOSYSTEM ——POTENTIAL ENERGY OF STORM DECREASED BY CANOPY AND NUTRIENTS OF STORM STORED IN THE SYSTEM
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摘要 基于对尖峰岭热带山地雨林集水流域的定位研究,分析了3年间该群落冠层对大雨、暴雨及大暴雨势能的消减、缓冲耗能效应以及年暴雨携带养分在系统中贮存效应,其冠层消减大雨、暴雨及大暴雨势能占年总消减势能在61.8%~71.8%之间,其中消减(≥200mm)大暴雨势能量占年总消减势能的43.9%;大雨、暴雨及大暴雨雨水的年均养分含量为55.122kg/hm2,其产流流失为42.917kg/hm2,年均净积累为12.205kg/hm2,除取Si外,年净积累量达32.674kg/hm2,充分体现出热带山地雨林生态系统具有的环境生态效应。 Based on located research of tropical mountain rainforest watershed at Jianfengling of China,it was analyzed that the influence of canopy upon storm and heavy storm.Nutrients' Input output by storm and storm runoff were studied in the system for three years.The decreased potential energy of heavy rain,storm and heavy storm by canopy was occupied 61 8%~71 8% of the annual total of precipitation during three years,of which the heavy rain,storm and heavy storm amounted to 21 6%,9 8%,68 6%,respectively.Mean total amount of N,P,K,Ca,Mg and Si in heavy rain,storm and heavy storm was 55 12 kg/hm 2·a and that in runoff was 42 92 kg/hm 2·a,so the net accumulation of them in the system was 12 21 kg/hm 2·a.When expected Si,the net accumulation of the nutrients in the system was 32 67 kg/hm 2·a.The system had marked ecology function of water and purification effect of water quality.
出处 《生态学报》 CAS CSCD 北大核心 1997年第6期635-639,共5页 Acta Ecologica Sinica
基金 林业部定位研究和中国林科院科学发展基金
关键词 森林生态系 热带山地雨林 冠层 水分生态 tropical mountain rain forest,potential energy of storm decreased by canopy,nutrient storage.
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参考文献5

  • 1周光益,植物生态学报,1995年,19卷,3期,201页
  • 2陈步峰,林业科学研究,1994年,7卷,5期,526页
  • 3曾庆波,尖峰岭热带森林垂直带的生态气候学分析,1994年
  • 4陈步峰,林业科学研究,1993年,6卷,2期,118页
  • 5蒋有绪,中国海南岛尖峰岭热带林生态系统,1991年

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