Effects of Biological Soil Crusts Development on Soil Anti-erodibility on Karst Slope

ZHANG Siqi; ZHANG Keli; MA Qianhong

doi:10.13870/j.cnki.stbcxb.2023.05.008

您当前的位置：

首页 >

文章列表页 >

Effects of Biological Soil Crusts Development on Soil Anti-erodibility on Karst Slope

更新时间：2025-03-12

- Effects of Biological Soil Crusts Development on Soil Anti-erodibility on Karst Slope
- Vol. 37, Issue 5, Pages: 64-70(2023)
- 作者机构：
  
  北京师范大学地理科学学部,北京,100875
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2023.05.008
  CLC： S157.1
- Published：2023
- 稿件说明：
移动端阅览
ZHANG Siqi, ZHANG Keli, MA Qianhong. Effects of Biological Soil Crusts Development on Soil Anti-erodibility on Karst Slope[J]. 2023, 37(5): 64-70.
DOI：

ZHANG Siqi, ZHANG Keli, MA Qianhong. Effects of Biological Soil Crusts Development on Soil Anti-erodibility on Karst Slope[J]. 2023, 37(5): 64-70. DOI： 10.13870/j.cnki.stbcxb.2023.05.008.

摘要

西南喀斯特地区普遍发育的生物结皮

对土壤侵蚀有显著的抑制作用。以贵州喀斯特坡面不同退耕年限地块(0

11年)生物结皮为研究对象

对不同流量水平(0.2

0.3

0.4

0.5 L/s)和坡度(5°

12°

17°

23°)条件下生物结皮对土壤抗蚀性能的影响机制进行研究。结果表明:(1)生物结皮发育能够促进土壤颗粒胶结

增强土壤团聚体稳定性

改善土壤结构

提高土壤持水和透水能力。(2)生物结皮发育可增强土壤抗崩解和抗剪切能力

与去除结皮处理相比

结皮存在时的土壤抗崩解和抗剪切能力分别提高24.83%~46.62%和25.77%~37.73%。(3)发育年限内(3~11年)结皮层抗拉力变化范围为1.95~5.76 N

随着生物结皮发育年限增加

结皮层结构越趋稳定

其抵抗破坏的能力也越强。(4)生物结皮可明显提高土壤抗冲性能

且受流量和坡度的双重制约

流量和坡度都存在临界值

分别为0.4 L/s和17°

超过临界值后

其保护作用显著减弱。研究结果对于喀斯特地区准确估算土壤流失和生态恢复建设正确评价具有重要意义。

Abstract

Biological soil crusts (biocrusts)

which develop commonly in the southwestern karst regions

have a significant effect on reducing soil erosion. To explore the effect of biocrusts on soil anti-erodibility

biocrusts with different rehabilitation ages (0

11 a) were studied on a karst hillslope in Guizhou

and different levels of flow discharge (0.2

0.3

0.4

0.5 L/s) and slope gradients (5°

12°

17°

23°) were designed. The results showed that:(1) Biocrusts on karst hillslopes could promote soil particles cementation

strengthen soil aggregate stability

improve soil structure

and enhance soil water holding capacity and permeability. (2) The biocrusts greatly enhanced the anti-disintegration and anti-shear strength of soil. Compared with the treatment of removing biocrusts

the soil's anti-disintegration and anti-shear strength of the treatment of retained biocrusts increased by 24.83%~46.62% and 25.77%~37.73%

respectively. (3) The tensile strength of the biocrust layer ranged from 1.95 to 5.76 N during the rehabilitation ages (3~11 a). As the development age of biocrusts increased

the structure of the biocrust layer became more stable

and its ability to resist damage became stronger. (4) The biocrusts could also significantly improve the soil anti-scour capacity

which was regulated by flow discharge and slope gradient. The critical value for flow discharge and slope gradient was 0.4 L/s and 17°

respectively

beyond which the protective effect of biocrusts was significantly weakened. These results were of great significance for accurately estimating soil erosion and correctly evaluating ecological restoration construction in karst regions.

关键词

Keywords

references

张元明,王雪芹.荒漠地表生物土壤结皮形成与演替特征概述[J].生态学报,2010,30(16):4484-4492.

Gao L, Bowker M A, Sun H et al. Linkages between biocrust development and water erosion and implications for erosion model implementation[J].Geoderma,2020,357:e113973.

李新荣,张元明,赵允格.生物土壤结皮研究:进展、前沿与展望[J].地球科学进展,2009,24(1):11-24.

张元明,杨维康,王雪芹,等.生物结皮影响下的土壤有机质分异特征[J].生态学报,2005,25(12):3420-3425.

Gao L, Bowker M A, Xu M, et al. Biological soil crusts decrease erodibility by modifying inherent soil properties on the Loess Plateau, China[J].Soil Biology and Biochemistry,2017,105:49-58.

赵允格,许明祥,王全九,等.黄土丘陵区退耕地生物结皮对土壤理化性状的影响[J].自然资源学报,2006,21(3):441-448.

李聪会,朱首军,陈云明,等.黄土丘陵区生物结皮对土壤抗蚀性的影响[J].水土保持研究,2013,20(3):6-10.

Zhao Y, Qin N, Weber B, et al. Response of biological soil crusts to raindrop erosivity and underlying influences in the hilly Loess Plateau region, China[J].Biodiversity and Conservation,2014,23(7):1669-1686.

Guo Q, Wang Z, Shen N, et al. Impacts of biocrusts on sheet erosion and its detachment- and transport-limited processes:A case study from the Loess Plateau, China[J].Biosystems Engineering,2022,223:18-28.

Warren S D, Rosentreter R, Pietrasiak N. Biological soil crusts of the Great Plains:A review[J].Rangeland Ecology and Management,2021,78:213-219.

程才,李玉杰,张远东,等.石漠化地区苔藓结皮对土壤养分及生态化学计量特征的影响[J].生态学报,2020,40(24):9234-9244.

郑智恒,熊康宁,容丽,等.两种等级喀斯特石漠化地区生物结皮对土壤养分恢复的影响[J].生态环境学报,2021,30(6):1202-1212.

Ma Q H, Zhang K L, Cao Z H, et al. Impacts of different surface features on soil detachment in the subtropical region[J].International Soil and Water Conservation Research,2021,9(4):555-565.

任乐,张科利,郭继成.基于冲刷试验的贵州耕地土壤抗冲性研究[J].水土保持学报,2013,27(1):56-59.

张显强,刘天雷,从春蕾.贵州5种喀斯特石生藓类成土及保土生态功能研究[J].中国岩溶,2018,37(5):708-713.

罗征鹏.喀斯特石漠化环境生物土壤结皮改善草地环境应用研究[D].贵阳:贵州师范大学,2018.

保锐琴,和贵祥,黄广杰,等.土壤崩解研究进展[J].贵州农业科学,2022,50(1):30-41.

丁文峰,丁登山.黄土高原植被破坏前后土壤团粒结构分形特征[J].地理研究,2002,21(6):700-706.

Wang H, Zhang G H, Li N N, et al. Soil erodibility influenced by natural restoration time of abandoned farmland on the Loess Plateau of China[J].Geoderma,2018,325:18-27.

肖波,赵允格,邵明安.陕北水蚀风蚀交错区两种生物结皮对土壤理化性质的影响[J].生态学报,2007,27(11):4662-4670.

高丽倩,赵允格,秦宁强,等.黄土丘陵区生物结皮对土壤物理属性的影响[J].自然资源学报,2012,27(8):1316-1326.

张军红,吴波.油蒿与臭柏沙地生物结皮对土壤理化性质的影响[J].东北林业大学学报,2012,40(3):58-61.

Yang K, Zhao Y G, Gao L Q. Biocrust succession improves soil aggregate stability of subsurface after "Grain for Green" Project in the Hilly Loess Plateau, China[J].Soil and Tillage Research,2022,217:e105290.

张晨晖,肖波,李胜龙,等.东北黑土区农田生物结皮的特征及其对表层土壤崩解的影响[J].应用生态学报,2022,33(7):1773-1782.

李宁宁,张光辉,王浩,等.黄土丘陵沟壑区生物结皮对土壤抗蚀性能的影响[J].中国水土保持科学,2020,18(1):42-48.

李冰,张朝晖.喀斯特石漠结皮层藓类物种多样性及在石漠化治理中的作用研究[J].中国岩溶,2009,28(1):55-60.

张显强,龙华英,刘天雷,等.贵州喀斯特地区5种石生藓类的持水性能及吸水特征比较[J].中国岩溶,2018,37(6):835-841.

马芊红,张科利.西南喀斯特地区土壤侵蚀研究进展与展望[J].地球科学进展,2018,33(11):1130-1141.

Caster J, Sankey T T, Sankey J B, et al. Biocrust and the soil surface:Influence of climate, disturbance, and biocrust recovery on soil surface roughness[J].Geoderma,2021,403:e115369.

张思琪,张科利,曹梓豪,等.喀斯特坡面生物结皮发育特征及其对土壤水分入渗的影响[J].应用生态学报,2021,32(8):2875-2885.

程才,李玉杰,龙明忠,等.苔藓结皮在我国喀斯特石漠化治理中的应用潜力[J].应用生态学报,2019,30(7):2501-2510.

Views

1004

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effects of Vegetation Root Distribution on Preferential Flow Characteristics in Woodland and Grassland of Karst Areas

Effects of Biological Soil Crusts on Soil Aggregate Distribution and Stability in Vegetation Concrete Slopes

Effects of Mixed Communities of Biological Crusts on Fluid Resistance Characteristics of Overland Flow on the Loess Plateau

Characteristics and Ecological Functions of Water Conservation in Karst Regions of Southwest China

Effect of Exposed Bedrock on Soil Water Infiltration in Karst Region

Related Author

ZHANG Han

CHENG Jinhua

WANG Jiao

SHI Xueqi

DONG Yue

XIA Dong

YAN Shuxing

ZHANG Xinya

Related Institution

School of Soil and Water Conservation， Beijing Forestry University

Beijing Shuimu Fangze Ecological Technology Co. Ltd.

College of Hydraulic & Environmental Engineering， China Three Gorges University

Hubei Provincial Engineering Research Center for Cement-based Ecological Restoration Technology， China Three Gorges University

College of Biological & Pharmaceutical Sciences， China Three Gorges University

⁰