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Cropping with Vicia villosa and native grass improves soil's bacterial structure and ecological network in a jujube orchard

文献类型： 外文期刊

作者： Wang, Shoule 1 ; Wang, Zhongtang 1 ; Hao, Qing 2 ; Peng, Bin 3 ; Li, Pan 1 ; Qi, Xuelong 1 ; Zhang, Qiong 1 ;

作者机构： 1.Shandong Acad Agr Sci, Shandong Inst Pomol, Taia, Peoples R China

2.Xinjiang Acad Agr Sci, Res Inst Hort Crops, Urumgi, Peoples R China

3.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumgi, Peoples R China

关键词： Jujube; Bacteria; Co-occurrence network; Grass cultivation

期刊名称：PEERJ （ 影响因子：2.3； 五年影响因子：2.8 ）

ISSN： 2167-8359

年卷期： 2024 年 12 卷

页码：

收录情况： SCI

摘要： In a jujube orchard, cropping withgrass may influence bacterial diversity and ecological networks due to changes of physicochemical properties in soil, which has a serious effect on the stability of soil ecosystems. The aim of this study was to analyze the effects of different cultivation methods (CK: cleaning tillage; NG: cropping with native grass; VV: cropping with Vicia villosa ) on the soil's bacterial structure and its co -occurrence network in a jujube orchard. The results showed that the highest moisture content, total nitrogen, and organic matter in the rhizosphere soil of a jujube orchard was found in the VV group. The soil's moisture content, total nitrogen, and organic matter in the VV group were 2.66%, 0.87 g kg - 1 , and 5.55 mg kg - 1 higher than that found in the CK group. Compared to the CK group, the number of unique species in the rhizosphere soil in the NG and the VV groups increased by 7.33% and 21.44%. The PICRUSt and FAPROTAX analysis showed that sown grass had a greater influence on the ecological function of the soil's bacteria. Cropping with Vicia villosa and native grass significantly increased aerobic chemoheterotrophy, nitrogen respiration, nitrate reduction related to biochemical cycles, and the relative abundance of genes related to carbohydrate metabolism and the biodegradation of xenobiotics. The bacterial network complexity in the NG group was higher than that in the CK and VV groups and was greatest in the hub nodes (OTU42, Bacteroidota ; OTU541, Nitrospiraceae ). In this study, the ecological benefit seen in the soil's microbial function provides support to the theory that cropping with grass ( Vicia villosa ) increases the sustainable development of a jujube orchard.

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