دورية أكاديمية
Response of soil nematode community structure and metabolic footprint to nitrogen addition in alfalfa fields on the Loess Plateau
العنوان: | Response of soil nematode community structure and metabolic footprint to nitrogen addition in alfalfa fields on the Loess Plateau |
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المؤلفون: | Liangliang Li, Zhuzhu Luo, Lili Nian, Lingling Li, Yining Niu, Barathan Balaji Prasath, Fasih Ullah Haider, Yaoquan Zhang, Renyuan He, Jiahe Liu |
المصدر: | Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024) |
بيانات النشر: | Nature Portfolio, 2024. |
سنة النشر: | 2024 |
المجموعة: | LCC:Medicine LCC:Science |
مصطلحات موضوعية: | Medicine, Science |
الوصف: | Abstract Nematodes serve as key indicators of soil health in ecological studies. Therefore, the current study examined the community structure and metabolic footprint of soil nematodes in alfalfa fields across varying levels of N supply in the semi-arid Loess Plateau. The findings offer theoretical guidance for the sustainable management of artificial alfalfa grasslands in this region. The research was based on alfalfa fields with different N application rates (0, 50, 100, 150 kg/ha2) as the research object, The shallow plate method was used to separate and extract soil nematodes, identify soil nematode groups, calculate ecological function index and metabolic footprint, and identify indicator species. A total of 6346 nematodes were isolated in this study, belonging to 27 genera and 19 families. Notably, the plant parasitic nematode Helicotylenchus was predominant. As N addition increased, the plant parasitic index (PPI) increased significantly. A N50 application significantly enhanced the soil nematode diversity index ( $$\text{H}$$ H ) and the free-living index (MI). The findings showcased a noticeable decrease in disturbance within the N50 soil nematode community. This resulted in a mature and stable community structure primarily attributed to the heightened abundance of omnivorous/predatory nematodes. Across various N levels, soil nematode communities underwent significant alterations in the soil food web structure through shifts in their metabolic footprint. Future strategies should focus on refining N management practices and integrating sustainable approaches like crop rotation and pest management. These efforts will contribute to guidelines ensuring artificial alfalfa grasslands lasting health and productivity. |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | English |
تدمد: | 2045-2322 |
Relation: | https://doaj.org/toc/2045-2322 |
DOI: | 10.1038/s41598-024-68393-9 |
URL الوصول: | https://doaj.org/article/837f4aecc28d4ba6946f691bded976c3 |
رقم الأكسشن: | edsdoj.837f4aecc28d4ba6946f691bded976c3 |
قاعدة البيانات: | Directory of Open Access Journals |
تدمد: | 20452322 |
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DOI: | 10.1038/s41598-024-68393-9 |