Reserve and Water-holding Characteristics of Litters in Larix principis-rupprechtii Plantation

doi:10.13466/j.cnki.lyzygl.2014.06.015

Abstract

Abstract: To understand the reserves and Water-holding caracteristics of litter in Larix principis-rupprechtii,Betula platyphylla and Populus davidiana,we implemented our experiment among different Forest ages,different components and different proportion of litters in Larix principis-rupprechtii in Yanshan mountain.The results shows that (i)the reserves of 6 forest stands are 35.75,45.50,60.00,65.94,25.40,19.39t／hm² separately.(ii)in each period,the water-holding rate of litter of different ages in Larix principis-rupprechtii plantations all present a same trend as 16a＞23a＞34a＞42a;when we studied the different mixed modes of litter,the water-holding rate of litter of Larix principis-rupprechtii+Betula platyphylla(1:3)is the biggest.Water-holding rate increased in a way of logarithm when soak time was extended.(iii)water absorption rate reduces in turn among 16a,23a,34a and 42a.When we studied the different mixed modes of litter,the water absorption rate of litter of Larix principis-rupprechtii+Betula platyphylla(1:3)is the biggest.Water absorption rate decreases in a way of power function when soak time was extended.

Key words: Larix principis-rupprechtii, litter, reserves, water-holding rate, water absorption rate

CLC Number:

S718.55

ZHANG Yuan, MA Changming. Reserve and Water-holding Characteristics of Litters in Larix principis-rupprechtii Plantation[J]. FOREST RESOURCES WANAGEMENT, 2014, 0(6): 63-68.

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