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不同人工造林树种及其配置方式对 土壤理化性质影响分析
杨亚辉1,3; 吕 渡2; 张晓萍1,2; 木热提江·阿不拉2; 赵文慧2
Source Publication水土保持研究

象,采用样方法进行造林地及林下地表植被调查,分层采样测定0 — 40cm土层土壤容重、孔隙度、有机质含量,分析不
内林下草本层虽然覆盖度区别很大,但物种丰富度、多样性、均匀度指数差异不显著。 0 — 20cm 表层土壤理化性质变
异性小于20 — 40cm土层。不同人工造林方式间土壤容重差异显著,且对20
— 40cm层土壤的毛管孔隙度、总孔隙度
性与 0 — 20cm 表层土壤的保水作用存在良好的对应关系。相比较而言, 0 — 40cm 土壤剖面上,草地和侧柏刺槐混交

Other Abstract

 The ecological environment in Loess Plateau is fragile and the soil erosion is sever.Afforestation is
the important means to improve the ecological environment.Different plantation species and configuration
modes affect physicochemical properties of soil and soil erosion.Eight runoff plots with various afforestation
species and different configurations in Wangdonggou watershed located in Changwu were selected in this re -
search , and quadrat method was used in understory  vegetation ecological investigation.Soil bulk density ,

rosity , organic matter content in soil layer were measured
; physicochemical properties were also analyzed un

der different artificial afforestation models.The results showed that the richness , diversity  and evenness in -
dex of herb layer under different types of understory  vegetation showed non - significant difference , and physi

cal and chemical property  difference in 20 — 40cm soil layer was greater than that in the surface layer.The
soil bulk densities in plots with various plantations were significantly  different , and the vegetation cover had
the significant effect on soil capillary porosity  and total porosity  in 20 — 40cm layer.The capillary porosity
had a markedly  relation with the richness
, diversity  index of herb layer , so did total porosity  and organic
matter.In the 0 — 40cm soil profile , grasses have a good ability  to increase the water storage and infiltration.
Herbaceous species richness and species diversity  indices were passtively
correlated with water storage in topsoil.

Keyword黄土高原 人工造林 造林方式 林下草被 土壤理化性质
Document Type期刊论文
Affiliation1.中国科学院 水利部 水土保持研究所 黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西 杨凌712100
2.西北农林科技大学 水土保持科学研究所,陕西 杨凌712100
Recommended Citation
GB/T 7714
杨亚辉,吕 渡,张晓萍,等. 不同人工造林树种及其配置方式对 土壤理化性质影响分析[J]. 水土保持研究,2017,24(6):238-06.
APA 杨亚辉,吕 渡,张晓萍,木热提江·阿不拉,&赵文慧.(2017).不同人工造林树种及其配置方式对 土壤理化性质影响分析.水土保持研究,24(6),238-06.
MLA 杨亚辉,et al."不同人工造林树种及其配置方式对 土壤理化性质影响分析".水土保持研究 24.6(2017):238-06.
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