Soil degradation restricts the development of agriculture, and the degree of soil degradation is related to land use type, and efficient evaluation methods are helpful for the timely implementation of remedial measures to ensure soil sustainability. Earthworms are directly affected by the deterioration of soil properties during the degradation process. The feasibility of using earthworms to assess soil degradation, however, still needs to be verified. In our Loess Plateau study, earthworm biomass, density, and diversity (Shannon‐Wiener, species richness, and Pielou's evenness) were investigated under nine different land use types (natural woodland, shrubland and grassland; planted woodland, shrubland and grassland; and cropland, orchard, abandoned land) and we analyzed their relationships with soil degradation. Our results showed earthworm biomass, density, and diversity associated with a low degree of degradation were significantly higher than those associated with a high degree of degradation. Earthworms can comprehensively characterize the physicochemical properties and biological characteristics of soils under different land use types. Linear correlations showed a significant relationship between the soil degradation index and the earthworm indices, indicating that the latter could be used to effectively evaluate and represent the degree of degradation of soils on the Loess Plateau over a certain degradation range. Nevertheless, this evaluation method requires further validation before wider use.

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评估as作为土壤退化的指标：黄土土壤的案例研究

土壤退化限制了农业的发展，土壤退化的程度与土地利用类型有关，有效的评估方法有助于及时采取补救措施以确保土壤的可持续性。degradation在退化过程中直接受到土壤性质恶化的影响。但是，使用earth来评估土壤退化的可行性仍然需要验证。在我们的黄土高原研究中，研究了9种不同土地利用类型（天然林地，灌木丛和草地；人工林地，灌木丛和草地；以及农田）下earth的生物量，密度和多样性（Shannon-Wiener，物种丰富度和Pielou的均匀度）。 ，果园，荒地），我们分析了它们与土壤退化之间的关系。我们的结果表明，与低降解程度相关的earth生物量，密度和多样性显着高于与高降解程度相关的earth。can可以综合表征不同土地利用类型下土壤的理化特性和生物学特性。线性相关性表明土壤退化指数与the指数之间存在显着的关系，表明后者可用于有效评估并代表黄土高原土壤在一定退化范围内的退化程度。但是，此评估方法需要在更广泛使用之前进行进一步验证。can可以综合表征不同土地利用类型下土壤的理化特性和生物学特性。线性相关性表明土壤退化指数与the指数之间存在显着的关系，表明后者可用于有效评估并代表黄土高原土壤在一定退化范围内的退化程度。但是，此评估方法需要在更广泛使用之前进行进一步验证。can可以综合表征不同土地利用类型下土壤的理化特性和生物学特性。线性相关性表明土壤退化指数与the指数之间存在显着的关系，表明后者可用于有效评估并代表黄土高原土壤在一定退化范围内的退化程度。但是，此评估方法需要在更广泛使用之前进行进一步验证。表明后者可用于有效评估并代表黄土高原土壤在一定降解范围内的退化程度。但是，此评估方法需要在更广泛使用之前进行进一步验证。表明后者可用于有效评估并代表黄土高原土壤在一定降解范围内的退化程度。但是，此评估方法需要在更广泛使用之前进行进一步验证。