土壤生态酶化学计量特征的自然影响因素及其对氮沉降的响应

doi:10.11924/j.issn.1000-6850.casb20190700387

中国农学通报 ›› 2020, Vol. 36 ›› Issue (24): 72-77.doi: 10.11924/j.issn.1000-6850.casb20190700387

所属专题：生物技术；资源与环境；农业生态

• 资源·环境·生态·土壤·气象 • 上一篇下一篇

土壤生态酶化学计量特征的自然影响因素及其对氮沉降的响应

王蕾(), 王庆贵()

黑龙江大学农业资源与环境学院/黑龙江省寒地生态修复与资源利用重点实验室,哈尔滨 150080

收稿日期:2019-07-06 修回日期:2019-11-04 出版日期:2020-08-25 发布日期:2020-08-20
通讯作者: 王庆贵
作者简介:王蕾,女,1992年出生,黑龙江哈尔滨人,在读硕士,研究方向：气候变化背景下的土壤生态系统响应。通信地址：150080 黑龙江大学农业资源与环境学院,E-mail：869027611@qq.com。
基金资助:
国家自然科学基金“阔叶红松林生态系统土壤碳循环对增氮和减水交互作用的响应”(41773075);“大兴安岭北方森林细根动态和形态特征对氮沉降的响应”(41575137);“大兴安岭北方森林生态系统对N沉降增加的响应”(31370494);“小兴安岭阔叶红松林生态系统对N沉降增加的响应”(31170421);科技部基础性工作专项A类项目“东北森林国家级保护区及毗邻区植物群落和土壤生物调查”(2014FY110600)

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

Wang Lei(), Wang Qinggui()

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

摘要/Abstract

摘要：

土壤酶是土壤生态系统物质和能量循环的重要影响因素,主要来自于微生物,微生物胞外酶活性通常可以用来表征土壤的肥力状况,土壤C-、N-、P-获取酶的活性比值（土壤生态酶化学计量比）是土壤微生物的养分获取和能量分配的指标。但有关生态酶化学计量学的相关论述还较少。本研究从氮沉降角度出发,综述了土壤生态酶对氮沉降的响应,充分探究了氮沉降背景下土壤生态酶(GLU、NAG、LAP、AP)以及氧化酶(PHO)的活性变化。同时,还讨论了温度、水分、pH、生态系统类型对C-、N-、P-获取酶活性的影响,以期为土壤生态酶的深入研究提供数据支持。

关键词: 氮沉降, 土壤生态酶, 化学计量特征, 自然影响因素

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

中图分类号:

王蕾, 王庆贵. 土壤生态酶化学计量特征的自然影响因素及其对氮沉降的响应[J]. 中国农学通报, 2020, 36(24): 72-77.

Wang Lei, Wang Qinggui. Soil Ecoenzymatic Stoichiometry Characteristics: Natural Influencing Factors and Their Responses to Nitrogen Deposition[J]. Chinese Agricultural Science Bulletin, 2020, 36(24): 72-77.

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土壤生态酶化学计量特征的自然影响因素及其对氮沉降的响应

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

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