不同植被恢复策略对贵州喀斯特生态系统土壤渗透特性的影响

程汉亭; 李勤奋; 王晓敏; 卢天禹; 张显波

doi:10.13870/j.cnki.stbcxb.2020.06.017

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不同植被恢复策略对贵州喀斯特生态系统土壤渗透特性的影响

更新时间：2025-03-12

- 不同植被恢复策略对贵州喀斯特生态系统土壤渗透特性的影响
- Effects of Different Vegetation Restoration Strategies on Soil Penetrability of Karst Ecosystem in Guizhou Province
- 水土保持学报 2020年34卷第6期页码：110-116
- 作者机构：
  
  1. 中国热带农业科学院环境与植物保护研究所,海口,570100
  2. 海南省热带生态循环农业重点实验室,海口,570100
  3. 农业部儋州农业环境科学观测实验站,海口,570100
  4. 贵州省亚热带作物研究所, 贵州兴义,562400
- 作者简介：
  
  [ "程汉亭(1983-),男,副研究员,主要从事生态农业研究。E-mail:chenghanting@163.com" ]
- 基金信息：
  
  滇桂黔石漠化地区特色作物产业发展关键技术集成示范项目（SMH2019-2021）中国热带农业科学院基本科研业务费专项（1630042017008）贵州科技厅科技支撑项目"贵州石漠化地区特色生态农业模式构建及示范"（黔科合支撑[2017]2856号）贵州农科院青年科技基金项目"贵州药—草—果石漠化治理模式研究及示范应用"（黔农科院青年科技基金[2020]28号）
- DOI：10.13870/j.cnki.stbcxb.2020.06.017
  中图分类号： S152.7
- 纸质出版：2020
- 稿件说明：
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程汉亭, 李勤奋, 王晓敏, 等. 不同植被恢复策略对贵州喀斯特生态系统土壤渗透特性的影响[J]. 水土保持学报, 2020,34(6):110-116.

CHENG Hanting, LI Qinfen, WANG Xiaomin, et al. Effects of Different Vegetation Restoration Strategies on Soil Penetrability of Karst Ecosystem in Guizhou Province[J]. 2020, 34(6): 110-116.
程汉亭, 李勤奋, 王晓敏, 等. 不同植被恢复策略对贵州喀斯特生态系统土壤渗透特性的影响[J]. 水土保持学报, 2020,34(6):110-116. DOI： 10.13870/j.cnki.stbcxb.2020.06.017.

CHENG Hanting, LI Qinfen, WANG Xiaomin, et al. Effects of Different Vegetation Restoration Strategies on Soil Penetrability of Karst Ecosystem in Guizhou Province[J]. 2020, 34(6): 110-116. DOI： 10.13870/j.cnki.stbcxb.2020.06.017.

摘要

旨在探讨不同植被恢复策略对土壤入渗特征空间变化的影响，通过对贵州石漠化治理试验区自然草灌木混合林、次生林地、退耕自然生草地、芒果地、坚果地及玉米地的土壤容重、土壤孔隙度、土壤有机质和土壤渗透特性的分析。结果表明：不同植被恢复策略下土壤容重、孔隙度和有机质含量存在显著差异，具体表现为自然植被恢复（草—灌木混合林和次生林地）和秸秆还田种植方式均能有效降低土壤容重，增加土壤孔隙度。随着土层深度增加，土壤容重呈增大趋势，土壤孔隙度和有机质含量变化趋势相反；植被恢复方式和土层深度显著改变了土壤的水分渗透特性，自然植被恢复（草—灌木混合林和次生林地）土壤渗透性能高于人工植被恢复（芒果地和坚果地），主要是因为自然植被恢复下土壤扰动小，植物根系和凋落物增加，从而改变土壤物理性质，降低土壤容重，提高土壤孔隙度的综合效益。随着土层深度增加，土壤稳渗速率和累积入渗量减小。通过测定不同植被恢复方式的土壤水文特征，为喀斯特地区植被恢复方式及土壤入渗性能评估提供科学依据。

Abstract

In recent years

the influence of vegetation restoration on soil infiltration process in different ecosystems has been a hot topic. The purpose of this study was to explore the influence of different vegetation restoration strategies on the spatial change of soil infiltration characteristics. Through the analysis of soil bulk density

soil porosity

soil organic matter

and soil penetrability characteristics of natural grass shrub mixed forest

secondary forest land

natural grassland

mango land

nut land

and corn land in the experimental area of rocky desertification control in Guizhou

the results showed that: For different vegetation restoration strategies

there are significant differences in soil bulk density

porosity

and organic matter content

which are manifested in natural vegetation restoration (grass shrub mixed forest and secondary forest land) and straw returning planting mode can effectively reduce soil bulk density and increase soil porosity. With the increase of soil depth

soil bulk density increased

soil porosity and organic matter content changed in the opposite direction. Different vegetation restoration methods and soil depth significantly changed the soil water permeability characteristics

among which

the soil permeability of natural vegetation restoration (grass shrub mixed forest and secondary forest land) was higher than that of artificial vegetation restoration (mango land and nut land)

mainly because under the condition of nature vegetation restoration

soil disturbance was small

plant roots and litter increased

which changes the physical properties of soil

reduces soil bulk density

and improves the comprehensive benefits of soil porosity. With the increase of soil depth

steady infiltration rate and cumulative infiltration amount decreased. By measuring the soil hydrological characteristics of different vegetation restoration methods

we can provide a scientific basis for the evaluation of vegetation restoration methods and soil infiltration performance in karst areas.

关键词

Keywords

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