Determination of the soil health status of wheat fields in Tekirdağ, Türkiye, based on nematode diversity

L. Öztürk, N. Sivri, I. Elekçi̇oǧlu
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Abstract

Objective: A study was conducted in wheat cultivation areas in Tekirdağ to estimate the soil health of fields using nematode biodiversity indices. Material and Methods: In the study, nematode taxa identified in wheat fields were subjected to community and food web analyses and several indices were calculated to determine the health status of soils in sampled areas. Results and Conclusion Nematodes belonging to 41 genera were identified in wheat fields. The mean values of 10 biodiversity indices calculated in each sampled field were as follows; the Maturity index (MI): 2.26±0.28; the Maturity index MI2-5: 2.32±0.33; the Shannon-Weiner diversity index (H′): 2.03±0.24, the Evennes (J′): 0.90±0.06, the Genera Richness index (GR): 8.32±3.17, the Channel index (CI): 91±20.44; the Basal index (BI): 42.35±12.66; the Enrichment index (EI): 41.93±14.3, the Structure index (SI): 33.6±26.49 and the Plant-parasitic (PPI) index: 2.89±0.17. The nematode faunal indices indicate that 21% of surveyed wheat fields have well-developed and 79% have degraded soil profiles.
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根据线虫多样性确定土耳其特基尔达麦田的土壤健康状况
研究目的在 Tekirdağ 的小麦种植区开展了一项研究,利用线虫生物多样性指数来评估田地的土壤健康状况。材料与方法:在研究中,对小麦田中发现的线虫类群进行了群落和食物网分析,并计算了若干指数,以确定采样地区土壤的健康状况。结果和结论 在麦田中发现了 41 个属的线虫。在每块取样田中计算出的 10 个生物多样性指数的平均值如下:成熟度指数(MI):2.26±0.28;成熟度指数 MI2-5:2.32±0.33;香农-韦纳多样性指数(H′):2.03±0.24;香农-韦纳多样性指数 MI2-5:2.32±0.33;香农-韦纳多样性指数 H′:2.03±0.24:2.03±0.24;埃文(J′):0.90±0.060.90±0.06,种属丰富度指数(GR):8.32±3.17,通道指数(CI):91±20.44;基础指数(BI):42.35±12.66;富集指数(EI):41.93±14.3,结构指数(SI):33.6±26.49,植物寄生指数(PPI):2.89±0.17:2.89±0.17.线虫群指数表明,调查的麦田中有 21% 的土壤层发育良好,79% 的土壤层退化。
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