ISWC OpenIR  > 水保所知识产出(1956---)
秦岭华山松林间伐强度对其水源涵养功能的影响
孟庆旭1,3; 张胜利2,3; 李侃1,3; 李伟1
2016
Source Publication西北林学院学报
Volume31Issue:2Pages:1-7
Abstract

在秦岭旬阳坝林区选择代表性的华山松样地,设置5%、10%、15%、20%共4个间伐强度
和未间伐对照(0%)5个处理,对比分析不同间伐强度对华山松林各生态层水源涵养功能的影响,
并用坐标综合法进行综合评价。结果表明:间伐后第3年,间伐5%、10%、15%和20%样地的林冠
截留率分别低于对照样地4.41%、6.59%、12.46%和15.01%,干流率分别高于对照样地9.34%、
11.67%、16.34%和21.01%;间伐样地枯落物储量和最大持水量均略低于对照样地,随间伐强度
的增加,二者分别下降1.20%、9.24%、12.70%、6.49%和3.44%、9.95%、8.99%、5.49%;与对照
样地相比,随间伐强度的增大,间伐样地土壤容重分别减少0.78%、2.43%、7.74%、10.43%,土壤
最大持水量和土壤稳渗率分别增加0.63%、1.13%、2.32%、3.25%和2.66%、7.10%、10.66%、
12.61%。间伐导致林冠层和枯落物层水源涵养功能下降,但影响均较小(p>0.05),间伐增强土
壤水源涵养功能,其中以间伐20%最为明显(p<0.05);总体上,间伐有利于提高水源涵养功能,其
中以间伐20%最优,15%次之。

Other Abstract

Typical Pinus armandii plots with thinning intensities of 5%,10%,15%,20%and 0% (control)
were selected in Xunyangba forest region of Qinling Mountains to examine the effect of thinning intensity
on water conservation capacity by using comparative analysis method.The results were evaluated by the
comprehensive coordinate method.It was found that three years after the treatments,the canopy interception
percentages of the forests with four levels of thinning intensities(5% ,10%,15%and 20%)decreased
by 4.41%,6.59%,12.46%and 15.01%compared with the control(0%thinning intensity),and the stem
flow percentage increased by 9.34%,11.67%,16.34% and 21.01%,respectively.The litter amount
decreased by 1.20%,9.24%,12.70%,and 6.49%,respectively,and water-holding capacity decreased by
3.44%,9.95%,8.99%,5.49%,respectively.Compared with the control plot,the soil bulk density decreased
by 0.78%,2.43%,7.74%,10.43% respectively and soil saturated water content increased by
0.63%,1.13%,2.32%,and 3.25%,respectively,and stable infiltration increased by 2.66%,7.10%,10.66%,and 12.61%,respectively.Thinning measure could reduce water conservation capacity of the canopy
and litter layer,but the impacts were not significant(p>0.05).Thinning measure could increase water
conservation capacity of the soil layer,and 20%thinning intensity was more obvious(p<0.05).On the
whole,thinning measure would be beneficial to improving water conservation capacity of Pinus armandii
forest and 20%thinning intensity had the highest water conservation capacity,followed by 15%thinning
intensity.

Keyword华山松 间伐强度 水源涵养 综合评价
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8659
Collection水保所知识产出(1956---)
Affiliation1.西北农林科技大学水土保持研究所
2.西北农林科技大学资源环境学院
3.陕西秦岭森林生态系统国家野外科学观测研究站
Recommended Citation
GB/T 7714
孟庆旭,张胜利,李侃,等. 秦岭华山松林间伐强度对其水源涵养功能的影响[J]. 西北林学院学报,2016,31(2):1-7.
APA 孟庆旭,张胜利,李侃,&李伟.(2016).秦岭华山松林间伐强度对其水源涵养功能的影响.西北林学院学报,31(2),1-7.
MLA 孟庆旭,et al."秦岭华山松林间伐强度对其水源涵养功能的影响".西北林学院学报 31.2(2016):1-7.
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