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营养物基准
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营养物基准
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nutrient criteria
营养物基准
水体中产生的生态效应不危及其功能或用途的营养物浓度或水平。可以反映受到人类开发活动影响程度最小的地表水体营养状态。主要指地表水体中浮游藻类生物不产生过量生长现象(水华现象),不致危害该水生态系统结构或功能的水体中营养物质的安全阈值。
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Journal of Geodynamics
Journal of Geophysical Research
Journal of Geophysical Research, A: Space Physics
Journal of Geophysical Research: Solid Earth
Journal of Geophysics and Engineering
Journal of Global History
Journal of Health Communication
Journal of Heat Transfer
Journal of Henan University of Technology(Natural Science Edition)
Journal of Historical Linguistics
Journal of Historical Pragmatics
Journal of historical studies
Journal of Human Settlements in West China
Journal of Hydraulic Engineering
Journal of Hydroecology
Journal of Industrial Textiles
Journal of Information Resources Management
Journal of Information Science
Journal of Informetrics
Journal of Integrative Plant Biology
Journal of Intelligence
Journal of Interdisciplinary History
Journal of Japanese History
Journal of Language Contact
Journal of Law and Politics
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