Decomposition and Nutrient Cycling in Agro-Ecosystems

Decomposition and Nutrient Cycling in Agro-Ecosystems
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农业生态系统中的分解和养分循环

DOI:
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发表时间:
1986
期刊:
影响因子:
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通讯作者:
W. McGill
W. McGill
中科院分区:
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文献类型:
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作者:
N. Juma;W. McGill

文献摘要

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农业操纵着能量通量、养分动态和水文循环。对农业生态系统中养分循环和分解的描述是特定地点的,因此除非考虑过程和调节机制,否则概括的有效性有限。因此,本章讨论了农业土壤的有机质状况,一些调节过程的机制和最近发展的关于土壤-植物系统中养分动态的想法。
Agriculture manipulates energy fluxes, nutrient dynamics and hydrologic cycles. Descriptions of nutrient cycling and decomposition in agro-ecosystems are site-specific and thus generalizations are of limited validity unless processes and regulatory mechanisms are considered. Consequently, this chapter discusses organic matter status of agricultural soils, some of the mechanisms regulating processes and recently developed ideas on nutrient dynamics in manipulated soil-plant systems.