A study on litter layer and holding capacity in soil of rhododendron delavayi forest

TLDR: In this article, the effects of litter layer and forest soil on the water source conservation are studied when the hydrological effects of by investigating and analyzing the forest soil and litter layer in the R delavayi forest are analyzed in Bailidujuan Pudi town in Dafang county,Guizhou.

Abstract: The effects of litter layer and forest soil on the water source conservation are studied when the hydrological effects of by investigating and analyzing the forest soil and litter layer in the R delavayi forest are analysed in Bailidujuan Pudi town in Dafang county ,Guizhou The results show that the maximum water holding capacity of the undecom posed litter in R delavayi forest is 260% of its dry weight, the maximum water holding capacity of the half- undecomposed litter in R delavayi forest is 283% of its dry weight , And the equation of the water ABSorption speed of in the litter layer and the immersing time is Y=kt~(n) The density of soil of the A layer is 088gcm~(-3 ),the maximum water holding capacity is 6087%, the capillary holding capacity is 427%,and the field holding capacity is 2327% those items of the secondary Quercus acutissima forest soil are respectively 11gcm~(-3),4043%,2973% and 2550% The density of soil of the B layer is 111gcm~(-3 ), the maximum water holding capacity is 4187%, the capillary holding capacity is 3353%,and the field holding capacity is 1858%