黄土丘陵沟壑区典型植物群落切沟系统植被生长特性

苏旭飞; 张光辉; 曾荣昌

doi:10.13870/j.cnki.stbcxb.2024.04.023

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黄土丘陵沟壑区典型植物群落切沟系统植被生长特性

更新时间：2025-03-12

- 黄土丘陵沟壑区典型植物群落切沟系统植被生长特性
- Vegetation Growth Characteristics of Typical Plant Communities in Gully System in the Hilly and Gully Region of Loess Plateau
- 水土保持学报 2024年38卷第4期页码：1-10
- 作者机构：
  
  1. 北京师范大学地理科学学部,北京,100875
  2. 北京师范大学地表过程与资源生态国家重点实验室,北京,100875
- 作者简介：
  
  [ "苏旭飞(1999—),男,硕士研究生,主要从事土壤侵蚀研究。E-mail:202121051006@mail.bnu.edu.cn" ]
- 基金信息：
  
  国家自然科学基金项目(4213000026)
- DOI：10.13870/j.cnki.stbcxb.2024.04.023
  中图分类号： Q948.1
- 纸质出版：2024
- 稿件说明：
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苏旭飞, 张光辉, 曾荣昌. 黄土丘陵沟壑区典型植物群落切沟系统植被生长特性[J]. 水土保持学报, 2024,38(4):1-10.

SU Xufei, ZHANG Guanghui, ZENG Rongchang. Vegetation Growth Characteristics of Typical Plant Communities in Gully System in the Hilly and Gully Region of Loess Plateau[J]. 2024, 38(4): 1-10.
苏旭飞, 张光辉, 曾荣昌. 黄土丘陵沟壑区典型植物群落切沟系统植被生长特性[J]. 水土保持学报, 2024,38(4):1-10. DOI： 10.13870/j.cnki.stbcxb.2024.04.023.

SU Xufei, ZHANG Guanghui, ZENG Rongchang. Vegetation Growth Characteristics of Typical Plant Communities in Gully System in the Hilly and Gully Region of Loess Plateau[J]. 2024, 38(4): 1-10. DOI： 10.13870/j.cnki.stbcxb.2024.04.023.

摘要

[目的] 为探究不同植物群落切沟系统之间以及同一切沟不同部位间植被生长特性的差异。[方法] 以陕西省安塞区纸坊沟小流域5个典型植物群落切沟系统为研究对象

系统研究其物种多样性、盖度、地上生物量、枯落物蓄积量和地下生物量等植被生长特性。[结果] (1)地上生物量、枯落物和根系消减系数受植被类型的显著影响

表现为乔木切沟>灌木切沟>草本切沟

盖度表现为灌木切沟>草本切沟>乔木切沟;(2)切沟右壁(阳坡到半阳坡)物种多样性指数、盖度小于左壁(阴坡到半阴坡);(3)受水热条件综合影响

切沟沟底和原始坡面的植被生长特性无明显分异规律;(4)切沟原始坡面枯落物蓄积量大于沟坡不同部位的枯落物蓄积量。[结论] 研究结果为深入理解植被恢复对切沟发育的潜在影响、评估植被恢复阻控切沟侵蚀的功能提供数据基础和理论支撑。

Abstract

[Objective] To explore the differences of vegetation growth characteristics between different plant communities and gully positions. [Methods] The vegetation growth characteristics of 5 typical plant communities were systematically studied in Zhifanggou small watershed of Ansai

Shaanxi Province.The investigated characteristics included species diversity

coverage

aboveground biomass

litter storage and underground biomass. [Results] (1) The above ground biomass

litter storage and root reduction coefficient were significantly affected by vegetation type

tree cutting ditch > shrub cutting ditch > herb cutting ditch

and the coverage was shrub cutting ditch > herb cutting ditch > tree cutting ditch. (2) The species diversity index and coverage of the right side of gully (sunny to semi-sunny slopes) were smaller than those on the left side (shade to semi-shade slopes); (3) Under the comprehensive influence of hydrothermal conditions

there was no obvious difference in vegetation growth characteristics between gully bottom and the original slope; (4) The accumulation of litter on the original slope was greater than that of different positions of gully. [Conclusion] The research results provide data foundation and theoretical support for understanding of the potential effects of vegetation restoration on the development of gully and evaluating the role of vegetation in mitigating gully erosion.

关键词

Keywords

references

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