桂东南花岗岩丘陵区不同土地利用方式土壤大孔隙特征

黄娟; 邓羽松; 马占龙; 黄智刚; 杨钙仁; 蒋代华

doi:10.13870/j.cnki.stbcxb.2021.02.012

您当前的位置：

首页 >

文章列表页 >

桂东南花岗岩丘陵区不同土地利用方式土壤大孔隙特征

更新时间：2025-03-12

- 桂东南花岗岩丘陵区不同土地利用方式土壤大孔隙特征
- Characteristics of Soil Macropores in Granite Hilly Region Area with Different Land Use Types in Southeast Guangxi
- 水土保持学报 2021年35卷第2期页码：80-86
- 作者机构：
  
  1. 广西大学林学院,南宁,530004
  2. 广西大学农学院,南宁,530004
- 作者简介：
  
  [ "黄娟(1996—),女,硕士研究生,主要从事水土保持与恢复生态研究。E-mail:HJ19960525@163.com" ]
- 基金信息：
  
  广西科技基地和人才专项（桂科AD20159031）国家自然科学基金重点项目（41630858）
- DOI：10.13870/j.cnki.stbcxb.2021.02.012
  中图分类号： S152.5
- 纸质出版：2021
- 稿件说明：
移动端阅览
黄娟, 邓羽松, 马占龙, 等. 桂东南花岗岩丘陵区不同土地利用方式土壤大孔隙特征[J]. 水土保持学报, 2021,35(2):80-86.

HUANG Juan, DENG Yusong, MA Zhanlong, et al. Characteristics of Soil Macropores in Granite Hilly Region Area with Different Land Use Types in Southeast Guangxi[J]. 2021, 35(2): 80-86.
黄娟, 邓羽松, 马占龙, 等. 桂东南花岗岩丘陵区不同土地利用方式土壤大孔隙特征[J]. 水土保持学报, 2021,35(2):80-86. DOI： 10.13870/j.cnki.stbcxb.2021.02.012.

HUANG Juan, DENG Yusong, MA Zhanlong, et al. Characteristics of Soil Macropores in Granite Hilly Region Area with Different Land Use Types in Southeast Guangxi[J]. 2021, 35(2): 80-86. DOI： 10.13870/j.cnki.stbcxb.2021.02.012.

摘要

根据水分穿透曲线和Poiseuille方程，定量研究桂东南花岗岩区6种（次生林、柑橘园、玉米地、杉木林、撂荒地和桉树林）不同土地利用方式土壤大孔隙半径范围、数量及分布情况，分析不同土地利用方式对土壤大孔隙特征的影响。结果表明：（1）不同土地利用方式土壤水分穿透速率存在差异，土壤水分出流速率短时间内可达到稳定状态，柑橘园不同土层之间稳定出流速率变化较大；（2）不同土地利用方式的土壤大孔隙半径为0.4~2.4 mm，主要集中分布在0.4~1.2 mm，均值为0.85 mm，<1.2 mm的小半径孔隙数量较多；（3）随着土层深度的增加和孔隙半径的减小，土壤大孔隙数量总体表现为随土层深度的增加而逐渐减少，大半径孔隙较少，小半径孔隙较多；（4）不同土地利用方式的土壤大孔隙仅占土壤体积的0.36%~6.38%，但其土壤大孔隙平均体积与稳定出流速率、土壤大孔隙平均半径与饱和导水率均呈极显著相关关系，分别决定了稳定出流速率79.92%和饱和导水率36.45%的变异。

Abstract

According to the water breakthrough curve and Poisssulle equation

the radius range

quantity and distribution of soil macropores covered by different land use types (secondary forest

citrus orchard

corn land

cedar forest

uncultivated land and eucalyptus forest) were quantitatively studied in granite area in southeast Guangxi. The results showed that:(1) There were differences in soil moisture breakthrough rates among different land use types. Soil water out flow rate reached a stable state in a short time

and only the stable outflow rate of citrus orchard changed greatly. (2) The soil macropore radius of different land use types was 0.4~2.4 mm

mainly distributed between 0.4~1.2 mm

the mean value was 0.85 mm

and there were a lot of small radius voidage <1.2 mm. (3) With the increase of soil depth and the decrease of pore radius

the number of soil macropores generally decreased

with fewer pores with large radius and more pores with small radius. (4) Under different land use types

soil macropores only accounted for 0.36%~6.38% of the soil volume

but their average volume of soil macropores was significantly correlated with stable outflow rate

average radius of soil macropores and saturated water conductivity

which determined the variations of stable outflow rate and saturated water conductivity by 79.92% and 36.45% respectively.

关键词

Keywords

references

刘目兴,吴丹,吴四平,等.三峡库区森林土壤大孔隙特征及对饱和导水率的影响[J].生态学报,2016,36(11):3189-3196.

陆斌,张胜利,李侃,等.秦岭火地塘林区土壤大孔隙分布特征及对导水性能的影响[J].生态学报,2014,34(6):1512-1519.

魏虎伟,程金花,张洪江,等.四面山2种林地大孔隙特征与优先流关系研究[J].水土保持学报,2014,28(4):263-268.

杨坤,赵洋毅,王克勤,等.普洱茶种植对滇南红壤大孔隙的影响[J].土壤,2019,51(3):586-593.

吕刚,傅昕阳,李叶鑫,等.露天煤矿排土场不同复垦植被土壤大孔隙特征[J].煤炭学报,2018,43(2):529-539.

Greve A K, Andersen M S, Acworth R I. Monitoring the transition from preferential to matrix flow in cracking clay soil through changes in electrical anisotropy[J].Geoderma,2012,179/180:46-52.

吕刚,王洪禄,黄龙.辽西半干旱区森林土壤大孔隙特征研究[J].水土保持通报,2012,32(5):176-181.

Heijden G V D, Legout A, Pollier B, et al. Tracing and modeling preferential flow in a forest soil-potential impact on nutrient leaching[J].Geoderma,2013,195/196:12-22.

石辉,陈凤琴,刘世荣.岷江上游森林土壤大孔隙特征及其对水分出流速率的影响[J].生态学报,2005,25(3):507-512.

官琦,徐则民,田林.植被发育玄武岩斜坡土体大孔隙尺寸及其主要影响因素[J].应用生态学报,2013,24(10):2888-2896.

孙龙,张洪江,程金花,等.重庆江津区柑橘地土壤大孔隙特征[J].水土保持学报,2012,26(3):194-198.

石辉,王峰,李秧秧.黄土丘陵区人工油松林地土壤大孔隙定量研究[J].中国生态农业学报,2007,15(1):28-32.

王伟,张洪江,程金花,等.四面山阔叶林土壤大孔隙特征与优先流的关系[J].应用生态学报,2010,21(5):1217-1223.

李茂娟,李天奇,朱连奇,等.50年来东北黑土区土地利用变化对沟蚀的影响:以克东地区为例[J].地理研究,2019,38(12):2913-2926.

贾燕锋,吴锰,刘明波.东北低山丘陵区解冻期不同土地利用土壤侵蚀特征分析[J].沈阳农业大学学报,2019,50(6):747-752.

邹文秀,韩晓增,陆欣春,等.不同土地利用方式对黑土剖面土壤物理性质的影响[J].水土保持学报,2015,29(5):187-193,199.

李鉴霖,江长胜,郝庆菊.土地利用方式对缙云山土壤团聚体稳定性及其有机碳的影响[J].环境科学,2014,35(12):4695-4704.

Bodhinayake W, Si B C. Near-saturated surface soil hydraulic properties under different land uses in the St Denis National Wildlife Area, Saskatchewan, Canada[J].Hydrological Processes,2004,18:2835-2850.

Holden J. Flow through macropores of different size classes in blanket peat[J].Journal of Hydrology,2009,364(3/4):342-348.

Luo L, Lin H, Li S. Quantification of 3-D soil macropore networks in different soil types and land uses using computed tomography[J].Journal of Hydrology,2010,393(1/2):53-64.

邵一敏,赵洋毅,段旭,等.基于分形分析的干热河谷区典型地类土壤优先路径分布特征[J].西北农林科技大学学报(自然科学版),2020,48(7):102-112.

黄婉霞,邓羽松,谢福倩,等.花岗岩崩岗不同部位土壤饱和导水率特征及其影响因素[J].应用生态学报,2020,31(7):2431-2440.

浏览量

996

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

根系对浅表层土大孔隙分布特征及饱和渗透性的影响

基于InVEST与CA-Markov模型的窟野河流域水源涵养量时空演变与预测

京津风沙源治理工程区土壤有机碳密度分布特征

云南省土地利用生态风险与碳储量时空关联分析与预测

基于InVEST模型的青弋江流域土壤侵蚀与影响因素研究