Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (24): 72-77.doi: 10.11924/j.issn.1000-6850.casb20190700387

Special Issue: 生物技术 资源与环境 农业生态

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Soil Ecoenzymatic Stoichiometry Characteristics: Natural Influencing Factors and Their Responses to Nitrogen Deposition

Wang Lei(), Wang Qinggui()   

  1. College of Agricultural Resource and Environment, Heilongjiang University/Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region, Harbin 150080
  • Received:2019-07-06 Revised:2019-11-04 Online:2020-08-25 Published:2020-08-20
  • Contact: Wang Qinggui E-mail:869027611@qq.com;qgwang1970@163.com

Abstract:

Soil enzyme is an important factor affecting the material and energy cycle of soil ecosystem, and it is mainly from microorganisms; microbial extracellular enzyme activity can be used to characterize the soil fertility, and the ratio of C-, N-, P-acquisition enzyme activity (soil ecological enzyme stoichiometric ratio) is the index of nutrient acquisition and energy distribution of soil microorganisms. However, there is less discussion on eco-enzyme stoichiometry. This paper discussed the response of soil ecological enzymes to nitrogen deposition from the perspective of nitrogen deposition, and fully explored the changes of soil ecological enzymes (GLU, NAG, LAP, AP) and Phenol oxidase (PHO) activities under the background of nitrogen deposition; meanwhile, the paper studied the effects of temperature, water content, pH and ecosystem types on the activities of C, N, P-aquisition enzymes in order to provide data support for further study on soil ecological enzymes.

Key words: nitrogen deposition, soil ecological enzymes, stoichiometry characteristics, natural influencing factors

CLC Number: