基于RUSLE的黑土区典型县域土壤侵蚀时空变化特征研究

王婷; 陆忠军; 宁静; 付斌; 辛蕊; 黄楠; 赵博文

doi:10.13961/j.cnki.stbctb.2023.05.027

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基于RUSLE的黑土区典型县域土壤侵蚀时空变化特征研究

试验研究

- 基于RUSLE的黑土区典型县域土壤侵蚀时空变化特征研究
- Temporal and Spatial Characteristics of Soil Erosion in Typical Counties of Black Soil Region Based on RUSLE
- 水土保持通报 2023年43卷第5期页码：227-234
- 作者机构：
  
  1. 黑龙江省农业科学院农业遥感与信息研究所,黑龙江,哈尔滨,150086
  2. 东北农业大学公共管理与法学院,黑龙江,哈尔滨,150300
  3. 黑龙江省农业科学院,黑龙江,哈尔滨,150086
- 作者简介：
- 基金信息：
  
  国家重点研发计划课题“基于大数据耕地资源评价利用技术与工具”(2022YFF0711803);黑龙江省“揭榜挂帅”科技攻关课题(2021ZXJ05A0501)
- DOI：10.13961/j.cnki.stbctb.2023.05.027
  中图分类号： K903;S157
- 纸质出版：2023
- 稿件说明：
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王婷, 陆忠军, 宁静, 等. 基于RUSLE的黑土区典型县域土壤侵蚀时空变化特征研究[J]. 水土保持通报, 2023,43(5):227-234.

Wang Ting, Lu Zhongjun, Ning Jing, et al. Temporal and Spatial Characteristics of Soil Erosion in Typical Counties of Black Soil Region Based on RUSLE[J]. Bulletin of Soiland Water Conservation, 2023, 43(5): 227-234.
王婷, 陆忠军, 宁静, 等. 基于RUSLE的黑土区典型县域土壤侵蚀时空变化特征研究[J]. 水土保持通报, 2023,43(5):227-234. DOI： 10.13961/j.cnki.stbctb.2023.05.027.

Wang Ting, Lu Zhongjun, Ning Jing, et al. Temporal and Spatial Characteristics of Soil Erosion in Typical Counties of Black Soil Region Based on RUSLE[J]. Bulletin of Soiland Water Conservation, 2023, 43(5): 227-234. DOI： 10.13961/j.cnki.stbctb.2023.05.027.

摘要

[目的

]

明确土壤侵蚀时空变化特征，为土壤侵蚀防治与水土保持效益评估提供参考依据。[方法

]

基于RUSLE土壤侵蚀方程，在RS和GIS技术支持下，分析2000—2020年典型黑土区黑龙江省宾县土壤侵蚀时空演变特征，并探究地形因子及土地利用对土壤侵蚀的影响。[结果

]

①2000，2010，2020年宾县平均土壤侵蚀模数分别为893.02，499.84，1 561.02 t/(km

·a)，土壤侵蚀强度整体以微度和轻度为主。②低强度侵蚀全区域均有分布，高强度侵蚀主要分布在南部山区； ③100～200 m是侵蚀分布的主要高程带；土壤侵蚀面积与坡度成反比，0°～5°是主要侵蚀坡度带；偏北坡方向的土壤侵蚀面积大于偏南坡方向； ④研究区坡耕地土壤侵蚀模数和侵蚀面积较大，是宾县土壤侵蚀治理的重点区域。[结论

]

2000—2020年宾县平均土壤侵蚀模数呈现先增加后减少的趋势，具有显著的时空分异特征，地形因子和土地利用变化对该区土壤侵蚀驱动作用明显。可以作为黑土区土壤侵蚀防治和水土保持效益评估的参考依据。

Abstract

[Objective] The spatiotemporal characteristics of soil erosion were analyzed in order to provide a reference for soil erosion control and evaluation of soil and water conservation benefits. [Methods] Based on the RUSLE soil erosion equation

the spatial-temporal evolution of soil erosion in the typical black soil region of Binxian County

Heilongjiang Province from 2000 to 2020 was analyzed with the support of RS and GIS. The effects of topographic factors and land use on soil erosion were also investigated. [Results] ① The average modulus of soil erosion in 2000

2010

and 2020 was 893.02 t/(km2·yr)

499.84 t/(km2·yr)

and 1 561.02 t/(km2·yr)

respectively. The soil erosion intensity was mainly classified as slight and mild. ② The low intensity erosion was distributed across the entire region

and the high intensity erosion was mainly located in the southern mountainous area. ③ Erosion mainly occurred at elevations of 100 to 200 m. Soil erosion area was inversely proportional to slope. 0°—5° slope was the main erosion gradient zone. Soil erosion area in the direction of the north slope was larger than in the direction of the south slope; ④ The soil erosion modulus and the area of sloping farmland in the study area were larger. This area is the key area for soil erosion control in Binxian County

Heilongjiang Province. [Conclusion] From 2000 to 2020

the average soil erosion modulus initially increased and then decreased

showing a significant spatiotemporal differentiation. Topographic factors and land use change had significant driving effects on soil erosion in the study area. It can be used as a reference for soil erosion control and soil and water conservation benefit evaluation in black soil region.

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