森林工程2026，Vol.42Issue(4)：707-717,11.DOI:10.7525/j.issn.1006-8023.2026.04.005
黑土侵蚀沟工程治理后生态功能评价
Ecological Function Evaluation of Gully Erosion Rehabilitation in Black Soil Regions
摘要
Abstract
As one of the most severe manifestations of land degradation in Northeast China,gully erosion in black soil re-gions poses a major threat to agricultural productivity and ecological stability.Consequently,gully erosion rehabilitation in black soil regions is a critical task for ecological restoration in Northeast China.However,systematic evaluation meth-ods and mechanistic understanding of functional recovery remain insufficient.Based on engineering projects imple-mented between 2022 and 2025 in four typical erosion gullies in Qitaihe City,this study developed an evaluation system comprising 30 indicators covering soil structure,vegetation diversity,and hydrological functions.Using a matter-ele-ment extension model combined with a game-theoretic weighting method,we quantified the post-restoration ecological function levels.The results showed that:(1)Soil structure and mechanical properties were the core driving factors,with<0.6 mm aggregates accounting for 73.13%of the structural weight.(2)Multiscale differentiation of soil func-tions:shear strength and non-capillary porosity dominated overall functionality,medium-sized aggregates played promi-nent roles in segmented zones,while deep-layer fine particles regulated hydrological processes.(3)The ecological func-tion of gullies restored in 2022 and 2024 reached the"excellent"level,with downstream sections significantly outper-forming upstream and midstream areas.The overall excellence rate reached 50%.Our findings highlight that microstruc-tural reconstruction and spatial heterogeneity regulation are key to ecological function recovery in black soil gullies.Moreover,the downstream segments exhibited the most notable restoration outcomes,offering a scientific basis for a"segmented-phase"precision management strategy in black soil regions.关键词
黑土侵蚀沟/生态功能评价/物元可拓模型/土壤团聚体/恢复效应Key words
Black soil gully erosion/ecological function evaluation/matter-element extension model/soil aggregates/restoration effect分类
农业科技引用本文复制引用
苏安双,王淼,狄高健,刘慧,高彤,董希斌,于信利,周广林..黑土侵蚀沟工程治理后生态功能评价[J].森林工程,2026,42(4):707-717,11.基金项目
黑龙江省省属科研院所科研业务费项目(CZKYF2024-1-A006) （CZKYF2024-1-A006）
国家自然科学基金项目(42401175) （42401175）
黑龙江省自然科学基金项目(ZD2023E007). （ZD2023E007）
