Soil Infiltration Characteristics of Different Plant Communities in the Xilamuren Grassland

WANG Zeyu1; MENG Zhongju1; CUI Xiangxin1; DANG Xiaohong1; WANG Jianran2; SHAN Yubing2

doi:10.13870/j.cnki.stbcxb.2017.03.020

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Soil Infiltration Characteristics of Different Plant Communities in the Xilamuren Grassland

更新时间：2025-03-12

- Soil Infiltration Characteristics of Different Plant Communities in the Xilamuren Grassland
- Vol. 31, Issue 3, Pages: 112-117(2017)
- 作者机构：
  
  1. 内蒙古农业大学沙漠治理学院,呼和浩特,010018
  2. 内蒙古自治区水利水电勘测设计院，呼和浩,010020
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2017.03.020
  CLC： S157.1
- Published：2017
- 稿件说明：
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WANG Zeyu1, MENG Zhongju1, CUI Xiangxin1, et al. Soil Infiltration Characteristics of Different Plant Communities in the Xilamuren Grassland[J]. 2017, 31(3): 112-117.
DOI：

WANG Zeyu1, MENG Zhongju1, CUI Xiangxin1, et al. Soil Infiltration Characteristics of Different Plant Communities in the Xilamuren Grassland[J]. 2017, 31(3): 112-117. DOI： 10.13870/j.cnki.stbcxb.2017.03.020.

摘要

为了解希拉穆仁天然草地土壤入渗特征，以未经人为干扰的围封草地为研究对象，利用双环法测定了以蒙古韭（Allium mongolicum）、银灰旋花（Convolvulus ammannii）、羊草（Leymus chinensis）、洽草（Koeleria asiatica）、克氏针茅（Stipa krylovii）、短花针茅（Stipa breviflora）6种植物为优势种的不同群落结构下土壤入渗过程，分析其入渗特征及影响因素。结果表明：各样地土壤入渗速率随时间变化过程大致分为3个阶段，土壤入渗速率在0~10 min呈急剧下降阶段，10~30 min呈缓慢降低并趋于稳定阶段，30 min后达到稳定阶段。通过对不同群落稳渗速率及达到稳渗前累积入渗量对比分析，发现不同群落间土壤入渗性能存在较大差异，其中，洽草群落土壤入渗性能最好，其次是羊草群落，银灰旋花群落土壤入渗性能最差，其原因是由于不同群落间土壤结构的差异性所致。通过相关性分析可知，土壤容重、最大孔隙度、非毛孔隙度是影响该地区土壤入渗的关键因素。利用Honton模型能准确描述研究区土壤入渗随时间变化情况。

Abstract

In order to know the soil infiltration characteristics of the Xilamuren grassland

a study was carried out in an enclosed grassland to investigate the soil infiltration process of six plant communities (Allium mongolicum

Convolvulus ammannii

Leymus chinensis

Koeleria asiatica

Stipa krylovii

and Stipa krylovii) using the double-ring sampling method

and the influencing factors were analyzed. The results indicated that soil infiltration rates in different plots could be divided into three stages. The first stage was from 0 to 10 minutes

in which the infiltration rate showed a sharp decreasing trend; during 10 to 30 minutes

the infiltration rate decreased slowly

and remained constant after 30 minutes. By analyzing the soil infiltration rates and infiltration amount

soil infiltration characteristics of the Koeleria asiatica community were the best

followed by those of the Leymus chinensis community

while those of the Convolvulus ammannii community was the worst. The differences in soil infiltration characteristics were caused by the differences in soil structures among communities. Correlation analysis showed that bulk density

maximum porosity

and non-capillary porosity were important factors affecting soil infiltration. Soil infiltration in the study area fitted thr Honton model very well.

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