秦岭山地蚯蚓数量分布及其与土壤环境因子的关系研究
Study on the Quantity Distribution of Earthworms in Qinling Mountains and Its Relationship with Soil Environmental Factors
DOI: 10.12677/HJSS.2021.94024, PDF,    科研立项经费支持
作者: 王 健：陕西地建土地工程技术研究院有限责任公司，陕西 西安 ；陕西省土地工程建设集团有限责任公司，陕西 西安；自然资源部退化及未利用土地整治重点实验室，陕西 西安；陕西省土地整治工程技术研究中心，陕西 西安
关键词: 蚯蚓；土地类型；环境因子；秦岭山地；Earthworms； Land Types； Environmental Factors； Qinling Mountains
摘要: 蚯蚓是土壤中典型的大型动物，在有机质分解、营养循环和土壤形成中起着极为重要的作用，具有重要的生态功能。运用样方调查法，对秦岭山地4种不同土地类型的蚯蚓密度、生物量进行了调查，分析了蚯蚓种群特征与土壤性质之间的关系。结果表明，不同土地类型下，土壤蚯蚓密度(P < 0.05)和鲜重(P < 0.05)均存在显著差异，均呈现为园地最高，林地和草地次之，耕地最低。此外，通过皮尔森相关性分析发现，土壤蚯蚓种群特征与土壤铵态氮成强烈负相关，与细根生物量成强烈正相关。蚯蚓种群特征与土壤环境因子的关系，将有助于定性预测和评估蚯蚓的生态功能。
Abstract: Earthworms are typical large animals in the soil, play an extremely important role in the decom-position of organic matter, nutrient cycling and soil formation, and have an important ecological function. The density and biomass of earthworms in 4 different land types in the Qinling Mountains were investigated using the sample survey method. And the relationship between the char-acteristics of earthworm populations and soil properties was analyzed. The results showed that there were significant differences in soil earthworm density (P < 0.05) and fresh weight (P < 0.05) under different land types, and both showed the highest in orchard land, followed by woodland and grassland, and the lowest in cultivated land. In addition, Pearson’s correlation analysis found that soil earthworm population characteristics are strongly negatively correlated with soil ammonium nitrogen, and strongly positively correlated with fine root biomass. The relationship between earthworm population characteristics and soil environmental factors will help qualitatively predict and evaluate the ecological functions of earthworms.
文章引用：王健. 秦岭山地蚯蚓数量分布及其与土壤环境因子的关系研究[J]. 土壤科学, 2021, 9(4): 186-191. https://doi.org/10.12677/HJSS.2021.94024

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