黄土丘陵区不同植被恢复对土壤入渗影响及适宜模型研究

马雪燕; 穆兴民; 王双银; 顾朝军; 谭学进

doi:10.13870/j.cnki.stbcxb.2023.02.009

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黄土丘陵区不同植被恢复对土壤入渗影响及适宜模型研究

更新时间：2025-03-12

- 黄土丘陵区不同植被恢复对土壤入渗影响及适宜模型研究
- Study on the Effects of Different Vegetation Restoration on Soil Infiltration and Suitable Models in the Loess Hilly Region
- 水土保持学报 2023年37卷第2期页码：67-75
- 作者机构：
  
  1. 西北农林科技大学水利与建筑工程学院, 陕西杨凌,712100
  2. 西北农林科技大学土壤侵蚀与旱地农业国家重点实验室, 陕西杨凌,712100
  3. 中国科学院水利部水土保持研究所, 陕西杨凌,712100
  4. 长江水利委员会长江流域水土保持监测中心站,武汉,430012
  5. 中山大学土木工程学院,广东,珠海,519082
- 作者简介：
  
  [ "马雪燕(1998—),女,在读硕士研究生,主要从事水文与水资源研究。E-mail:maxueyan0208@163.com" ]
- 基金信息：
  
  国家自然科学基金项目"黄土区地表产流机制变化对植被恢复的响应"(42077075,41671285)
- DOI：10.13870/j.cnki.stbcxb.2023.02.009
  中图分类号： P341;S152.7
- 纸质出版：2023
- 稿件说明：
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马雪燕, 穆兴民, 王双银, 等. 黄土丘陵区不同植被恢复对土壤入渗影响及适宜模型研究[J]. 水土保持学报, 2023,37(2):67-75.

MA Xueyan, MU Xingmin, WANG Shuangyin, et al. Study on the Effects of Different Vegetation Restoration on Soil Infiltration and Suitable Models in the Loess Hilly Region[J]. 2023, 37(2): 67-75.
马雪燕, 穆兴民, 王双银, 等. 黄土丘陵区不同植被恢复对土壤入渗影响及适宜模型研究[J]. 水土保持学报, 2023,37(2):67-75. DOI： 10.13870/j.cnki.stbcxb.2023.02.009.

MA Xueyan, MU Xingmin, WANG Shuangyin, et al. Study on the Effects of Different Vegetation Restoration on Soil Infiltration and Suitable Models in the Loess Hilly Region[J]. 2023, 37(2): 67-75. DOI： 10.13870/j.cnki.stbcxb.2023.02.009.

摘要

研究植被恢复条件下土壤入渗特性及模型适应性

可为流域生态治理和效益评估提供科学依据。以延河纸坊沟小流域为研究区

采用野外单环入渗法和数值模拟法

对比研究不同恢复年限下的刺槐林地、柠条灌木林地、次生草地和农地的表层以下土壤和20 cm以下土壤的水分入渗变化特征

评价4种常用入渗模型在该区域的适应性。结果表明:(1)不同植被恢复地的表层以下土壤入渗过程在渗润阶段与渗漏阶段差异明显

相差4倍以上

20 cm以下的土壤入渗过程则在入渗稳定后的渗透阶段差异明显

相差5倍多;(2)不同植被类型及恢复年限会显著影响土壤入渗特征

整体呈现出林地＞草地＞农地的规律

并且随着恢复年限的增加

柠条灌木林地和次生草地的入渗能力增强

而刺槐林地入渗能力减弱;(3) Philip方程、Kostiakov方程、Horton方程与蒋定生方程对该地区土壤水分入渗过程均具有较好适用性

其中Philip方程适用性最好

决定系数(R2)能达到0.931~0.985

均方根误差(RMSE)相对最小

在0.057~0.283范围内

Kostiakov方程次之

Horton方程及蒋定生方程在个别情况下存在偏差。综上

植被恢复显著影响土壤入渗能力

且随恢复年限的增加呈现不同规律

多种入渗模型中Philip方程对该地区土壤水分入渗过程适用性最好。

Abstract

The study on soil infiltration characteristics and model adaptability under vegetation restoration can provide scientific basis for watershed ecological management and benefit evaluation.Taking Zhifanggou small watershed of Yanhe River as the study area

the field single-loop infiltration method and numerical simulation method were used to study the variation characteristics of water infiltration below the surface layer and below 20 cm soil of robinia pseudoacacia forest land

caragana korshinskii shrub land

secondary grassland and farmland under different restoration years

and the adaptability of four common infiltration models in the region was evaluated.The results showed that:(1) The infiltration process of soil below the surface layer of different vegetation restoration areas were significantly different in the infiltration and leakage stages

and the maximum difference was more than 4 times.The infiltration process below 20 cm was significantly different in the penetration stage after the infiltration stability

and the maximum difference was more than 5 times.(2) Different vegetation types and restoration years had significant effect on soil infiltration characteristics

showing the law of forest land > grassland > farmland as a whole.With the increase of restoration years

the infiltration capacity of caragana korshinskii land and secondary grassland increased

while the infiltration capacity of robinia pseudoacacia forest land decreased.(3) Philip equation

Kostiakov equation

Horton equation and Jiang Dingsheng equation all had good applicability to the soil water infiltration process in the region.Philip equation had the strongest applicability

and the determination coefficient R2 could reach 0.931~0.985

the root mean square error RMSE was relatively minimum

which was in the range of 0.057~0.283

followed by Kostiakov equation

but Horton equation and Jiang Dingsheng equation had deviation in individual cases.In conclusion

vegetation restoration will significantly affect soil infiltration capacity and show different laws with the increase of restoration years.Among various infiltration models

Philip equation has the best applicability to the soil water infiltration process in this area.

关键词

Keywords

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