| 砂质潮土施用改良剂对土壤动物群落特征的影响 |
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| 引用本文： | 杨静,张贺,李双霜,李桂花,张建峰. 砂质潮土施用改良剂对土壤动物群落特征的影响[J]. 中国农业科学, 2022, 55(16): 3185-3199. DOI: 10.3864/j.issn.0578-1752.2022.16.010 |
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| 作者姓名： | 杨静 张贺 李双霜 李桂花 张建峰 |
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| 作者单位： | 中国农业科学院农业资源与农业区划研究所/耕地培育技术国家工程实验室,北京 100081 |
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| 基金项目： | 国家自然科学基金(22176215);现代农业产业技术体系建设专项(CARS-23-B18);中央级公益性基本科研业务费专项所级统筹项目(1610132021015) |
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| 摘 要： |
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| 关 键 词： | 土壤改良剂 大、中小型土壤动物 群落结构 多样性 生态位 |
| 收稿时间： | 2021-07-19 |
Effects of Amendments on Soil Fauna Community Characteristics in a Fluvo-Aquic Sandy Soil |
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| YANG Jing,ZHANG He,LI ShuangShuang,LI GuiHua,ZHANG JianFeng. Effects of Amendments on Soil Fauna Community Characteristics in a Fluvo-Aquic Sandy Soil[J]. Scientia Agricultura Sinica, 2022, 55(16): 3185-3199. DOI: 10.3864/j.issn.0578-1752.2022.16.010 |
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| Authors: | YANG Jing ZHANG He LI ShuangShuang LI GuiHua ZHANG JianFeng |
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| Affiliation: | Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/National Engineering Laboratory of Cultivated Land Cultivation Technology, Beijing 100081 |
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| Abstract: | 【Objective】 Soil fauna is an important component of terrestrial ecosystem, therefore, the studying of the relationship between soil fauna and amendments will help reveal the mechanism of amendments to soil fauna.【Method】During 2016-2019, the characteristics of the soil fauna community in the soil surface layer (0-20 cm) of wheat and maize rotation area with different amendments were investigated. There were four treatments, including no amendment (CK), organic amendment 15 t·hm-2 (YJ), inorganic amendment 2.25 t·hm-2 (WJ) and organic amendment 15 t·hm-2+inorganic amendment 2.25 t·hm-2 (YW). 【Result】During the study period, 4 351 soil fauna belonging to 8 classes, 20 orders, 41 families, and 44 classes were collected, of which 28 families were macrofauna, and the dominant groups were Asilidae and Myrmicinae, accounting for 62.9% of the total captured soil macrofauna. In another, 14 families soil meso-and micro-fauna were collected, and the dominant groups were Acarid and Oribatida, accounting for 93.0% of the total captured soil meso- and micro-fauna. Soil fauna mainly belonged to saprozoic and omnivores. The data indicated that the total number and taxa of soil fauna collected during the experiment was the highest under WJ, and the lowest under YJ. The number of Scutigerellidae, Sejidae and Japygidae decreased and their richness index decreased, while the mites increased, and the dominance index was high under amendments comparing with CK. There were significant differences in individual number and diversity index of small and medium animal communities among different years (P<0.05), and the number of individuals showed a gradually increasing trend; but the Jaccard index (q) of soil fauna was less than 0.50 among all treatments, and the similarity of macrofauna community was lower than that of meso- and micro- community. The ecological niche widths of meso- and micro- soil fauna, such as Acarid, Oribatida, and Onychiuridae, were higher than those of macrofauna, such as Myrmicinae. However, the niche overlap index was higher than 0.97, indicating that the application of amendments increased the common resources of soil fauna. The NMDS analysis showed that the soil animal community in wheat season 2018 was significantly different from that in other years, whereas, in maize season of 2016, 2018, and 2019, there were different. The results of RDA indicated that soil TN and AK were significantly correlated with Acarid, Oribatida, Onychiuridae, Enicocephalidae, Carabidaein wheat season (P<0.05); the soil organic matter and pH were main factors influencing Acarid, Enicocephalidae, Sciaridae, and Asilidae in maize season (P<0.05). The PRC analysis showed that the relative abundance of Uropodidae peaked in October 2017, and that of Asilidae and Myrmicinae peaked in October 2016 under YJ. The relative abundance of Onychiuridae, Acarid, and Oribatida reached a peak in October 2016 under the combined application of organic and inorganic amendments, and that of Phlaeothripidae and Enicocephalidae appeared in 2019 and peaked in October 2019, demonstrating the incongruity of soil fauna groups to the amendments. 【Conclusion】The variation of soil fauna community and diversity in different years were much more profound than amendments, and the amendments modified soil fauna community and diversity mainly by changing soil pH, SOM, and TN in a fluvo-aquic sandy soil. |
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| Keywords: | soil amendment macrofauna meso-and micro-fauna community composition diversity ecological niche |
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