干旱区生态环境知识资源中心(Arid): 氮肥减施与配施有机肥对冬小麦土壤线虫群落结构的影响

Arid

	氮肥减施与配施有机肥对冬小麦土壤线虫群落结构的影响
其他题名	Effects of reduction of nitrogen fertilizer application and combined organic fertilizer on soil nematode community in winter wheat field
	赵一; 杨贝贝; 朱新萍; 陈署晃; 陈小云; 贾宏涛
来源期刊	应用生态学报
ISSN	1001-9332
出版年	2021
卷号	32 期号:4 页码:1001-9332
中文摘要	土壤线虫是指示土壤健康的典型生物之一,为了揭示氮肥减施对土壤健康的影响,以冬小麦土壤为对象,研究了氮肥减施和配施有机肥对拔节期冬小麦土壤线虫群落结构的影响。共设置了6个施肥处理: CF(315 kg N·hm~(-2),常规施肥量) 、N_(240)(240 kg N·hm~(-2)) 、 N_(210)(210 kg N·hm~(-2)) 、N_(180)(180 kg N·hm~(-2)) 、F_(150)(180 kg N·hm~(-2) +150 kg·hm~(-2)黄腐酸) 、 F_(225)(180 kg N·hm~(-2)+225 kg·hm~(-2)黄腐酸) 。结果表明: 1)氮肥减施会降低土壤线虫数量,降幅为15.3%~68.5%; 2)各处理均以原杆属为优势属(19.6%~ 50.4%) 。氮肥减施提高了食真菌类、植食类和捕食/杂食类线虫的丰度,食细菌类线虫的丰度先降低后升高。配施有机肥后,食细菌类和食真菌类线虫的丰度降低,植食类和捕食/杂食类线虫丰度升高; 3) N_(240)和F_(225)处理分别使线虫多样性指数H提高了48.1%和58.5%。N_(240)处理线虫成熟度指数MI最高(1.95) 。N_(180)处理线虫结构指数SI最低(43.33),配施有机肥的F_(225)线虫结构指数SI达到62.72,但线虫富集指数EI最低(80.82) 。说明减施氮肥并配施有机肥可以提高土壤线虫的多样性,使食物网向复杂稳定方向发展,对农田土壤生态系统有积极意义。
英文摘要	Soil nematodes are one of the typical indicator organisms for soil health. To reveal the effects of reduction in nitrogen fertilizer application on soil health,we examined community structure of soil nematode under reduced nitrogen fertilizer while combined with organic fertilizer at the jointing stage of winter wheat. There were six fertilization treatments,including CF(315 kg N·hm~(-2), conventional fertilization),N_(240)(240 kg N·hm~(-2)),N_(210)(210 kg N·hm~(-2)) 、N_(180)(180 kg N·hm~(-2)), F_(150)(180 kg N·hm~(-2)+150 kg·hm~(-2) fulvic acid),and F_(225)(180 kg N·hm~(-2)+225 kg·hm~(-2) fulvic acid). The results showed that: 1) The reduction of nitrogen fertilization decreased nematode number by 15.3%-68.5%. 2) Protorhabditis was the dominant genus (19.6%-50.4%) across all treatments. The reduction of nitrogen fertilizer application increased the abundance of fungivores,herbivores, and predators-omnivores,while that of bacterivores decreased first and then increased. Combined application of organic fertilizer decreased the abundance of bacterivores and fungivores,while increased that of herbivores and predators-omnivores. 3) N_(240) and F_(225) increased the Shannon diversity (H) of nematode community by 48.1% and 58.5%,respectively. The maturity index (MI) in N_(240) was the highest (1.95),while the structural index (SI) was the lowest in N_(180)(43.33). The structural index (SI) of F_(225) with combined application of organic fertilizer reached 62.72,but its enrichment index (EI) was lowest (80.82). In conclusion,reduced nitrogen fertilizer application and combined with organic fertilizer could improve soil nematode diversity,increase the complexity of soil food web,which would be conducive to the health and stability of agricultural ecosystem.
中文关键词	化肥减施 ; 土壤健康 ; 土壤线虫 ; 灰漠土
英文关键词	fertilizer application reduction soil health soil nematode grey desert soil
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6951675
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354526
作者单位	赵一, 新疆农业大学草业与环境科学学院, 乌鲁木齐, 新疆 830052, 中国.; 杨贝贝, 新疆农业大学草业与环境科学学院, 乌鲁木齐, 新疆 830052, 中国.; 朱新萍, 新疆农业大学草业与环境科学学院, 乌鲁木齐, 新疆 830052, 中国.; 贾宏涛, 新疆农业大学草业与环境科学学院, 乌鲁木齐, 新疆 830052, 中国.; 陈署晃, 新疆农业科学院土壤肥料与农业节水研究所, 乌鲁木齐, 新疆 830091, 中国.; 陈小云, 南京农业大学资源与环境科学学院, 南京, 江苏 210095, 中国.
推荐引用方式 GB/T 7714	赵一,杨贝贝,朱新萍,等. 氮肥减施与配施有机肥对冬小麦土壤线虫群落结构的影响[J],2021,32(4):1001-9332.
APA	赵一,杨贝贝,朱新萍,陈署晃,陈小云,&贾宏涛.(2021).氮肥减施与配施有机肥对冬小麦土壤线虫群落结构的影响.应用生态学报,32(4),1001-9332.
MLA	赵一,et al."氮肥减施与配施有机肥对冬小麦土壤线虫群落结构的影响".应用生态学报 32.4(2021):1001-9332.