植被覆盖变化与土壤保持演变空间异质性研究

曾令建; 杨振奇; 秦富仓; 郭建英; 张铁钢

doi:10.13870/j.cnki.stbcxb.2023.05.022

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植被覆盖变化与土壤保持演变空间异质性研究

更新时间：2025-03-12

- 植被覆盖变化与土壤保持演变空间异质性研究
- Spatial Heterogeneity of Vegetation Cover Change and Soil Conservation Evolution
- 水土保持学报 2023年37卷第5期页码：178-188
- 作者机构：
  
  1. 中国水利水电科学研究院内蒙古阴山北麓荒漠草原生态水文野外科学观测研究站,北京,100383
  2. Institute of Water Resources for Pastoral Area, Ministry of Water Resources,Hohhot,010020
  3. College of Desert Control Science and Engineering, Inner Mongolia Agricultural University,Hohhot,010018
- 作者简介：
  
  [ "曾令建(1995-),男,甘肃民勤人,硕士研究生,主要从事生态系统服务功能的研究。E-mail:zenglj0210@163.com" ]
- 基金信息：
  
  内蒙古自治区科技兴蒙行动重点专项“十大孔兑综合治理与水资源集约高效利用集成示范”(KJXM-EEDS-2020005)内蒙古自治区科技计划项目“黄河十大孔兑流域生态修复空间精准识别与智慧水土保持技术”(2021GG0052)内蒙古自治区自然科学基金项目“半干旱区植被演替及其侵蚀产沙动力学过程模拟”(2019MS03026)
- DOI：10.13870/j.cnki.stbcxb.2023.05.022
  中图分类号： X87
- 纸质出版：2023
- 稿件说明：
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曾令建, 杨振奇, 秦富仓, 等. 植被覆盖变化与土壤保持演变空间异质性研究[J]. 水土保持学报, 2023,37(5):178-188.

ZENG Lingjian, YANG Zhenqi, QIN Fucang, et al. Spatial Heterogeneity of Vegetation Cover Change and Soil Conservation Evolution[J]. 2023, 37(5): 178-188.
曾令建, 杨振奇, 秦富仓, 等. 植被覆盖变化与土壤保持演变空间异质性研究[J]. 水土保持学报, 2023,37(5):178-188. DOI： 10.13870/j.cnki.stbcxb.2023.05.022.

ZENG Lingjian, YANG Zhenqi, QIN Fucang, et al. Spatial Heterogeneity of Vegetation Cover Change and Soil Conservation Evolution[J]. 2023, 37(5): 178-188. DOI： 10.13870/j.cnki.stbcxb.2023.05.022.

摘要

为定量研究植被覆盖与土壤保持两者之间的关系及植被覆盖对土壤保持的影响

选取十大孔兑为研究区

利用趋势分析法、空间自相关分析、InVEST模型

重点分析十大孔兑2000-2020年植被覆盖、土壤保持时空变化及植被覆盖变化对土壤保持的作用。结果表明:(1)研究期内

十大孔兑区植被覆盖均呈增加趋势;(2)2000-2020年

土壤保持量随着植被覆盖的增加而增加

说明植被覆盖增加对于土壤侵蚀有明显的抑制作用

对土壤保持服务功能有明显的促进作用;(3)植被覆盖与土壤保持局部空间自相关

Moran's I指数<0

但2000-2020年相关系数逐渐增大

在空间分布上

Abstract

In order to quantitatively study the relationship between vegetation cover and soil conservation

as well as the impact of vegetation cover on soil conservation

this study selected the top ten tributaries as the research area

and used trend analysis

spatial autocorrelation analysis

InVEST model to focus on analyzing the temporal and spatial changes of vegetation cover and soil conservation and the effect of vegetation cover change on soil conservation in the top ten tributaries area from 2000 to 2020. The results showed that:(1) During the study period

the vegetation coverage in the top ten tributaries area showed an increasing trend. (2) From 2000 to 2020

the soil conservation capacity increased with the increasing of vegetation cover

which indicated that the increase of vegetation cover had a significant inhibitory effect on soil erosion and had a significant promoting effect on soil conservation service function. (3) Vegetation coverage and soil conservation had local spatial autocorrelation

with Moran's I<0

but the correlation coefficient gradually increased from 2000 to 2020. In terms of the spatial distribution

there were significant differences in correlation distribution. 'High-high' and 'low-low' were sporadically distributed in the middle Kubuqi windy desert area and the upstream hilly and gully area. 'High-low' and 'low-high' distributed in the upstream hilly and gully area and the downstream alluvial plain area. It was mainly because in the upstream hilly and gully area

there was higher altitude and stronger soil conservation ability but lower vegetation coverage. The downstream alluvial plain area was mainly farmland ecosystem

with a high NDVI in the growing season

but poor soil erosion resistance and weak soil conservation ability. Through the analysis of the vegetation cover change and soil conservation evolution

as well as their spatial heterogeneity and correlation in the ten tributaries areas

it indicated that the increase of vegetation cover had a promoting effect on soil conservation to a certain extent

and the results also could provide a certain reference for the soil erosion control work in the study area.

关键词

Keywords

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