Acta Agrestia Sinica ›› 2024, Vol. 32 ›› Issue (8): 2659-2669.DOI: 10.11733/j.issn.1007-0435.2024.08.034

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The Effects of Commercial Organic Fertilizer and Semi Decomposed Sheep Manure on Artificial Grassland and Soil Characteristics in Alpine Mining Area

QIAO Qian-luo1, WU Yan-ru1, LI Qing-yao1, ZHANG Yang-can1, KOU Wei-liang1, HE Xin-ting2, LI Xi-lai3, KOU Jian-cun1, YANG Wen-quan2   

  1. 1. College of Grassland Agriculture, Northwest A&F University, Yangling, Shaanxi Province 712100, China;
    2. College of Life Sciences, Northwest A&F University, Yangling, Shaanxi Province 712100, China;
    3. College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai Province 810016, China
  • Received:2023-12-28 Revised:2024-02-26 Published:2024-09-07

商品有机肥和羊板粪对高寒矿区人工草地和土壤特性的影响

乔千洛1, 武燕茹1, 李钦瑶1, 张阳灿1, 寇伟良1, 何欣婷2, 李希来3, 寇建村1, 杨文权2   

  1. 1. 西北农林科技大学草业与草原学院, 陕西 杨凌 712100;
    2. 西北农林科技大学生命科学学院, 陕西 杨凌 712100;
    3. 青海大学农牧学院, 青海 西宁 810016
  • 通讯作者: 杨文权,E-mail:wenquan05@sina.com
  • 作者简介:乔千洛(1999-),男,汉族,新疆乌鲁木齐人,硕士研究生,主要从事高寒矿区生态修复研究,E-mail:qiaoqianluo@nwafu.edu.cn
  • 基金资助:
    2023年中央林业改革发展资金项目(E6301000076043631001001);中央财政林草科技推广示范项目(青[2021]TG01号);青海省财政林业改革发展资金技术推广项目([2021]001号);大学生创新创业训练计划项目(S202310712513)资助

Abstract: In order to improve the soil fertility of the artificial grassland and to promote the sustainable plant restoration in the alpine mining area,three fertilization treatments including commercial organic fertilizer,semi decomposed sheep manure,and mixture of commercial organic fertilizer and semi decomposed sheep manure were applied during the restoration and grass planting in the Muli mining area,Qinghai. The plots without organic fertilizer was taken as the control. The vegetation,the soil fertility,and the microbial community structure were determined after 2 years of growth. The results showed that the fertilizer application significantly (P<0.05) increased the height,the coverage,and the aboveground biomass,and improved the soil fertility. The best effect was achieved by the mixed application of the commercial organic fertilizer and the semi decomposed sheep manure. All three treatments significantly increased the richness of soil bacteria (P<0.05),but had no effect on soil fungal diversity. All three treatments could increase the relative abundance of Proteobacteria and Ascomycota,while reduced the relative abundance of Basidiomycota. Correlation analysis showed that the vegetation characteristics were significantly correlated with the fertility and microorganisms of the soil. The organic fertilizer can promote vegetation growth by increasing the soil fertility and changing the soil microbial community structure. Therefore,the application of the organic fertilizer was beneficial to the growth of vegetation and the improvement of the soil fertility and microbial community structure during the ecosystem restoration in alpine mining areas. And the mixed application of the commercial organic fertilizer and the semi decomposed sheep manure has better effect.

Key words: Alpine mining area, Artificial grassland, Commercial organic fertilizer, Semi decomposed sheep manure, Soil microorganisms, Soil fertility

摘要: 为提高木里矿区人工草地土壤肥力,促进矿区可持续修复,在青海木里矿区修复时进行了商品有机肥、羊板粪、商品有机肥+羊板粪3种施肥处理,以未施有机肥为对照,分析生长2年的植被、土壤肥力和土壤微生物群落结构。结果表明:施肥显著(P<0.05)提高了植被高度、盖度和生物量,并改善了土壤肥力,且以两种肥料混施效果最好。3种处理均显著提高了土壤细菌丰富度(P<0.05),但对土壤真菌多样性无影响。3种处理均提高了变形菌门(Proteobacteria)和子囊菌门(Ascomycota)相对丰度,降低了担子菌门(Basidiomycota)相对丰度。相关性分析表明,植被情况与土壤肥力、土壤微生物存在显著相关性,有机肥通过增加土壤肥力和改变土壤微生物群落结构促进植被生长。因此,高寒矿区生态修复时施有机肥有利于人工植被生长,改善土壤肥力和土壤微生物群落结构,且以商品有机肥+羊板粪混施效果更好。

关键词: 高寒矿区, 人工草地, 商品有机肥, 羊板粪, 土壤微生物, 土壤肥力

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