Responses of soil micro-food web to long-term fertilization in a wheat-maize rotation system
文献类型: 外文期刊
作者: Zhang, Zhiyong 1 ; Zhang, Xiaoke 1 ; Xu, Minggang 3 ; Zhang, Shuiqing 4 ; Huang, Shaomin 4 ; Liang, Wenju 1 ;
作者机构: 1.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110164, Peoples R China
2.Shenyang Agr Univ, Coll Land & Environm, Shenyang 110161, Peoples R China
3.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China
4.Henan Acad Agr Sci, Inst Plant Nutr & Environm Resources Sci, Zhengzhou 450002, Peoples R China
关键词: Microbial community;Nematode community;Long-term fertilization;Metabolic footprint;Structural equation modeling;Wheat-maize rotation
期刊名称:APPLIED SOIL ECOLOGY ( 影响因子:4.046; 五年影响因子:4.884 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Soil microbes and nematodes are important components of soil biota that strongly affect agricultural productivity and sustainability. Currently, our knowledge on the response of soil biota to agricultural management is restricted. This study aimed to identify the relationship between microbial and nematode communities and explore the resource path that flows within the soil micro-food web under different fertilization practices in a winter-wheat/summer-maize rotation system. The experiment was a randomized complete block design with three replicates for each treatment that included unfertilized control; inorganic N, P and K fertilizer (NPK); NPK plus manure; and NPK plus maize straw. Soil samples were taken at a 0-20 cm depth when wheat and maize were harvested. The results showed that organic manure or maize straw combined with NPK fertilizers had positive effects on the soil microbial and nematode communities. For example, the incorporation of straw increased the fungal biomass. Longterm inorganic fertilization might restrain nematode biomass accumulation especially in fungivorous nematodes. The analysis of the metabolic footprints of nematodes suggested that the incorporation of straw could enhance the carbon resource flow into the soil food web by enhancing nematode biomass. Structural equation modeling analysis suggested that the bottom-up control from the microbial community to the nematode community was more obvious in the wheat season in comparison with the maize season. In addition, a relatively stronger predation relationship was found between omnivores-predators and bacterivores rather than fungivores. Our study suggests that organic management combined with NPK fertilization could effectively enhance the association between microbial and nematode communities, while a crop rotation system with maize may have a negative influence on the structure of the soil micro-food web. (C) 2015 Elsevier B.V. All rights reserved.
- 相关文献
作者其他论文 更多>>
-
Improving soil quality and crop yield of fluvo-aquic soils through long-term organic-inorganic fertilizer combination: Promoting microbial community optimization and nutrient utilization
作者:Yang, Jinkang;Ren, Yanan;Jia, Mengke;Liu, Hongen;Zhao, Peng;Wang, Long;Jie, Xiaolei;Huang, Shaomin;Guo, Tengfei;Liu, Bingyang
关键词:Organic-inorganic fertilizers combination; Fluvo-aquic soils; Soil quality; Functional microbial communities; Long-term localization experiments
-
Medium molecular weight carbon fractions of DOM: Driving soil microbial community differentiation and soil organic carbon sequestration
作者:Yang, Jinkang;Ren, Yanan;Liu, Hongen;Zhao, Peng;Wang, Long;Jie, Xiaolei;Huang, Shaomin;Weng, Liping;Li, Yongtao
关键词:Organic substitution; DOM; FT-ICR MS; Biomarkers; Microbial community structure; Microbial carbon source metabolism
-
Fertilization type affects the genetic potential for phosphorus mineralization but not for phosphorus solubilization at the continental scale
作者:Yuan, Yanhong;Ren, Chengjie;Barquero, Maria Belen;Bastida, Felipe;Li, Yu;Zhang, Shuiqing;Fan, Hongzhu;Zhang, Huimin;Li, Qiang;Liu, Shutang;Shi, Linlin;Shi, Linlin;Cai, Andong;Xu, Minggang;Xu, Hu
关键词:Fertilization; Phosphorus; Solubilization; Mineralization; Metagenomes
-
Comparing carbon sequestration efficiency in chemically separated soil organic carbon fractions under long-term fertilization in three major Chinese croplands
作者:Xu, Hu;Xu, Hu;Mustafa, Adnan;Zhang, Lu;Sun, Nan;Xu, Minggang;Mustafa, Adnan;Zhang, Lu;Huang, Shaomin;Gao, Hongjun;Nezhad, Mohammad Tahsin Karimi
关键词:long-term field experiment; fertilization; carbon sequestration efficiency; organic carbon stability; organic; carbon fractionation
-
Molecular Composition of Soil Organic Matter Fractions Under Long-Term Post-Agricultural Restoration Across a Large Climate Gradient
作者:Song, Fanbo;Li, Qiang;Wang, Yidong;Hu, Ning;Lou, Yilai;Zhang, Huimin;Li, Dongchu;Zhu, Ping;Gao, Hongjun;Zhang, Shuiqing;Chen, Shufeng
关键词:chemical composition; natural vegetation restoration; organo-mineral association; particulate organic matter; Py-GC/MS
-
Long-term combined application of organic and inorganic fertilizers increases crop yield sustainability by improving soil fertility in maize-wheat cropping systems
作者:Wang, Jinfeng;Xu, Minggang;Yang, Xueyun;Huang, Shaomin;Wu, Lei;Cai, Zejiang;Xu, Minggang;Cai, Zejiang
关键词:organic amendments; crop yield; yield sustainability; soil fertility; nutrient balance
-
Minimizing the potential risk of soil nitrogen loss through optimal fertilization practices in intensive agroecosystems
作者:Wang, Jun;Zhang, Lu;Xu, Minggang;Zhang, Wenju;Liu, Kailou;Zhou, Boku;Gao, Hongjun;Han, Xiaori;Liu, Shutang;Huang, Shaomin;Zhang, Aijun;Hua, Keke;Wang, Jidong;Hu, Hangwei
关键词:Gross nitrification; Gross N immobilization; Manure; Chemical fertilizer; Microbial abundance



