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生态学杂志 ›› 1986, Vol. ›› Issue (1): 33-37.

• 研究报告 • 上一篇    下一篇

浏阳河流域山洪暴发原因的初步分析

李贻格   

  1. 湖南省林业厅
  • 收稿日期:1984-03-20 出版日期:1986-02-10

Preliminary Analysis on the Causes of Mountain Torrent in Liuyang Basin

Li Yige   

  1. Hunan Department of Forestry
  • Received:1984-03-20 Online:1986-02-10

关键词: 南方红豆杉, 种群, 空间格局, 动态

Abstract: In July 7 th to 9th of 1983,a serious calamity from mountain torrents was happened in theupper sections of Liuyang River of Hunan province.Investigation shows that this calamity isrelated to landforms,topography,properties of rocks and soils,climate,vegetation and humanactivities.Among internal causes,forest vegetation is the main one,and among external causes——human activities.This calamity is also the result from cuantitative to qualitative changesof three great ecological crises——population explosion,forest exhausion and environmental deterioration.

Key words: Taxus chinensis var. mairei, Population, Spatial pattern, Dynamics