• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>European Journal of Soil Biology >Aggregate-related changes in living microbial biomass and microbial necromass associated with different fertilization patterns of greenhouse vegetable soils
【24h】

Aggregate-related changes in living microbial biomass and microbial necromass associated with different fertilization patterns of greenhouse vegetable soils

机译：与温室蔬菜土壤的不同施肥模式相关的生物微生物生物量和微生物乳腺癌的骨料相关变化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Knowledge on soil aggregation and microbial-driven soil C dynamics at the aggregate scale is beneficial for longterm sequestration of C in greenhouse vegetable production (GVP) systems. Here, we used an eight-year fertilization experiment to compare the effects of organic vs. chemical fertilization on soil aggregate stability, as well as living microbial biomass, microbial necromass, and soil C dynamics at the aggregate scale. Relative to chemical fertilization treatment, organic amendments (e.g., manure and/or straw) could improve soil physical quality (as indicated by the value of mean weight diameter), increase microbial biomass and residues, as well as enhance the contributions of microbes to soil organic C (SOC) accumulation within large macroaggregates, small macroaggregates, microaggregates, and silt/clay fractions. Microbial biomass and residues were unevenly distributed among aggregates under different fertilization patterns, i.e., organic amendments made microbial biomass and fungal residues enriched from in silt/clay fractions to in macroaggregates. The low proportions of microbial residue C in SOC in microaggregates demonstrated that the microhabitat of microaggregates limits microbial necromass contributions to SOC accumulation. The changes of microbial biomass were closely related to extractable organic C (EOC), while the variations of fungal and bacterial residues were intimately associated with its corresponding microbes (i.e., fungal and bacterial PLFAs) and enzymes. Moreover, microbial associated ratios (e.g., fungal/bacterial PLFAs) were largely influenced by aggregates and strongly associated with soil chemical associated ratios (e.g., EOC/EON). Our findings provide useful insights on soil microbial-driven C dynamics at the aggregate scale in GVP systems under different fertilization patterns in China.
机译：None

著录项

  • 来源
    《European Journal of Soil Biology》 |2021年第1期|共9页
  • 作者

    Luan Haoan; Yuan Shuo; Gao Wei; Tang Jiwei; Li Ruonan; Zhang Huaizhi; Huang Shaowen;

  • 作者单位

    Hebei Agr Univ Coll Forestry Baoding 071000 Peoples R China;

    Chinese Acad Agr Sci Inst Agr Resources &

    Reg Planning Key Lab Plant Nutr &

    Fertilizer Minist Agr &

    Rural Affairs Beijing 100081 Peoples R China;

    Tianjin Inst Agr Resources &

    Environm Tianjin 300192 Peoples R China;

    Chinese Acad Agr Sci Inst Agr Resources &

    Reg Planning Key Lab Plant Nutr &

    Fertilizer Minist Agr &

    Rural Affairs Beijing 100081 Peoples R China;

    Hebei Acad Agr &

    Forestry Sci Inst Agr Resources &

    Environm Shijiazhuang 050051 Hebei Peoples R China;

    Chinese Acad Agr Sci Inst Agr Resources &

    Reg Planning Key Lab Plant Nutr &

    Fertilizer Minist Agr &

    Rural Affairs Beijing 100081 Peoples R China;

    Chinese Acad Agr Sci Inst Agr Resources &

    Reg Planning Key Lab Plant Nutr &

    Fertilizer Minist Agr &

    Rural Affairs Beijing 100081 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 土壤生物学;
  • 关键词

    Fertilization; Soil aggregate distribution; Living microbial biomass; Microbial necromass; Soil C dynamics;

    机译：施肥;土壤骨料分布;生效微生物生物量;微生物乳腺;土壤C动力学;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号