| 间伐强度对秦岭南坡锐齿栎林土壤水文特性的影响 |
| 李侃1,3; 张胜利2,3; 孟庆旭1
|
| 2015
|
发表期刊 | 西北林学院学报
|
卷号 | 30期号:2页码:8-14 |
摘要 | 在秦岭南坡中山地带,选择有代表性的锐齿栎林样地,按照间伐强度为5%、10%、15%和
20%进行间伐,并与未间伐样地进行对照,就间伐强度对锐齿栎林土壤水文特性的影响进行研究。
结果表明,间伐2a后,各间伐样地土壤容重显著大于对照样地(p<0.05),总孔隙、毛管孔隙则显
著小于对照样地(p<0.05),5%间伐样地土壤非毛管孔隙大于对照样地,其他间伐样地小于对照
样地。随着间伐强度的增加,土壤容重显著增大(p<0.05),毛管孔隙、非毛管孔隙、总孔隙度显著
下降(p<0.05),且间伐活动对A层土壤容重的影响大于B层。各间伐样地土壤的自然持水量、毛
管持水量、最小持水量和最大持水量显著低于对照样地(p<0.05),随着间伐强度的增大,土壤的
自然持水量、毛管持水量、最小持水量和最大持水量显著下降(p<0.05)。在各间伐样地中,5%土
壤的渗透系数最大,随间伐强度的增大,各间伐样地渗透性能持续下降。基于主成分分析,锐齿栎
林对照样地土壤水文功能最优,其次为5%间伐样地。土壤持水量与毛管孔隙和总孔隙有显著正
相关(p<0.05),与土壤容重有显著负相关(p<0.05);渗透系数与非毛管孔隙有显著正相关(p<
0.05),与土壤容重有显著负相关(p<0.05)。 |
其他摘要 | In order to understand the influence of thinning intensity on soil hydrological characteristics of
Quercus aliena var.acuteserrata,sampling plots were established on the he south-facing slope with medium-
altitude of Qinling Mountains.The plots were thinned with the intensities of 0% (control),5%,
10%,15%,and 20%.The results indicated that the soil bulk density of thinned plots were higher than
those of the control(p<0.05),while the reverse result was observed on the total porosity and capillary
porosity(p<0.05).The non-capillary porosity of thinning intensity at 5% was higher than the control,
and other thinned plots were reverse.With the increased of thinning intensity,the soil bulk density increased
significantly(p<0.05),and the capillary porosity,non-capillary porosity,and total porosity decreased
significantly(p<0.05).The influence of thinning management to the soil bulk density of" A layer"
was more significant than"B layer"
.The natural water holding-capacity,capillary water-holding capacity,minimum water-holding capacity and maximum water-holding capacity of thinned plots were lower
than the control(p<0.05).With the increase of thinning intensity,significant decreases(p<0.05)were
recorded in the natural water holding-capacity,capillary water-holding capacity,minimum water-holding
capacity and maximum water-holding capacity.The permeability value of thinning intensity at 5% was
higher than the control.With the increase of thinning intensity,permeability value decreased.Based on
principal component analysis,the comprehensive hydrological effect of un-thinned plot was the best.The
5%thinning intensity treatment is recommended considering the comprehensive hydrological effect among
the four thinning levels.The soil water-holding capacities were positively correlated(p<0.05)with the
capillary porosity and total porosity,but negatively with soil bulk density(p<0.05).The permeability
were positively correlated(p<0.05)with non-capillary porosity,but negatively with soil bulk density
(p<0.05) |
关键词 | 锐齿栎林
渗透性能
间伐强度
持水能力
|
收录类别 | 中文核心期刊要目总览
|
语种 | 中文
|
文献类型 | 期刊论文
|
条目标识符 | sbir.nwafu.edu.cn/handle/361005/9693
|
专题 | 水保所知识产出(1956---)
|
作者单位 | 1.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
|
推荐引用方式 GB/T 7714 |
李侃,张胜利,孟庆旭. 间伐强度对秦岭南坡锐齿栎林土壤水文特性的影响[J]. 西北林学院学报,2015,30(2):8-14.
|
APA |
李侃,张胜利,&孟庆旭.(2015).间伐强度对秦岭南坡锐齿栎林土壤水文特性的影响.西北林学院学报,30(2),8-14.
|
MLA |
李侃,et al."间伐强度对秦岭南坡锐齿栎林土壤水文特性的影响".西北林学院学报 30.2(2015):8-14.
|
文件名:
|
间伐强度对秦岭南坡锐齿栎林土壤水文特性的影响_李侃.pdf
|
格式:
|
Adobe PDF
|
此文件暂不支持浏览
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论