E3S Web Conf.
Volume 338, 20227th International Conference on Environmental Science and Material Application (ESMA 2021)
|Number of page(s)||4|
|Published online||20 January 2022|
Population characteristics and influencing factors of terrestrial earthworms in Qinling Mountains
1 Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi’an Shaanxi China
2 Key Laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Nature and Resources, Xi’an Shaanxi China
* Corresponding author: email@example.com
Earthworms can have an important effect on a variety of processes that determine soil fertility and play a very important role in natural ecosystems. The biomass and density of earthworms in 4 different land utilize types in the Qinling mountains were investigated using the wet funnel method. The relationship between the characteristics of earthworm populations characteristics and environmental factors were analysed, and the significant differences in soil earthworm density (P < 0.05) and fresh weight (P < 0.05) were discovered under different land utilize types, and all showed the highest value in orchard land, followed by woodland and grassland, in addition, the lowest was discovered in cultivated land. In addition, Pearson correlation analysis indicate that soil earthworm population characteristics was strongly negatively correlated with soil ammonium nitrogen (NH4+-N), and strongly positively correlated with fine root biomass. The clarified relationship between earthworm population characteristics and soil physical and chemical properties will help qualitatively predict and evaluate the ecological functions of terrestrial earthworms in Qinling mountains.
Key words: Terrestrial Earthworms / Land Utilize Types / Soil Physical and Chemical Properties / Qinling Mountains
© The Authors, published by EDP Sciences, 2022
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