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FOREST RESOURCES WANAGEMENT ›› 2020, Vol. 0 ›› Issue (4): 87-94.doi: 10.13466/j.cnki.lyzygl.2020.04.013

• Scientific Research • Previous Articles     Next Articles

A Study on the Conservation Capacity of Different Forest Water Sources in Ziwu Mountain of Gansu Province

WEI Hongzheng1(), XIAO Zhan feng2, HE Xiaojun1, LI Shixuan1, SHE Zhanjun2   

  1. 1. Gansu Province Meridian Ridge Forestry Administration,Gansu Heshui 745400,China
    2. Gansu Province Meridian Ridge Forestry Administration,Artemisinin Tsui Forest Farm Gansu Water 745405,China
  • Received:2020-05-06 Revised:2020-07-02 Online:2020-08-28 Published:2020-10-10

Abstract:

In the analysis of tree vegetation,joe irrigation vegetation,and grass-fed vegetation in Ziwu Mountain of Gansu Province,it is found that crown intercept of the coniferous mixed forest is higher than that of broad-leaf mixed forest and oil pine pure forest,and the surface runoff of the irrigation vegetation (3.24mm) and the soil erosion module (0.46 t/(km2·a)) are the smallest among them while the dry-falling layer holds the highest (19.68%),and the average annual water conservation of the soil layer (318.28mm) is higher than that of the dead-water layer (187.17mm),and the water conservation capacity of mixed forest is higher than that of pure forest. The comprehensive analysis results show that: the well-mixed forest joe irrigation grass (592.18mm) owns the strongest water conservation capacity while the pure forest vegetation of oil pine forest (376.92mm) owns the weakest. Water conservation capacity can be enhanced by the combination of planted tree species and the artificial promotion of natural renewal,and the adjustment of distribution of vegetation.

Key words: Ziwu Mountain of Gansu Province, different types, water conservation, capacity study

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