Chin J Plan Ecolo ›› 1991, Vol. 15 ›› Issue (1): 71-78.

• Research Articles • Previous Articles     Next Articles

Studies on the water Conservation Efficacy of Forest in the Land Area Qinghai Province

He Dong-ning, Wang Zhan-lin, Zhang Hong-xun   

  • Published:1991-01-10
  • Contact: Xu Meng

Abstract: There are six main forest community types in the forest district of the north mountain of Ledu county. The test and analysis of the physical preperties of forest soil, forest litter, water absorption capacity, the infiltration velocity of soil and underground run-off as well as the estimate of the efficacy of water conservation point out that forest community soil of this area contain good efficacy of water conservation. It shows that volume-weight is reduced and porocity is increased. The forest community soil of this area can conserve water about 461—978t/ha. The absorbing water capacity of forest litter is 2.9—7.6 more than its weight. The infiltration velocity of soil is far more than maximum rainfall intensity of this area.