高氮排都市氮元素流分析:以臺北市為例

Agriculture & Biology

• material flow analysis 100%
• urban areas 58%
• Taiwan 56%
• case studies 48%
• nitrogen 33%
• river water 20%
• urban agriculture 11%
• sewage treatment 10%
• anthropogenic activities 8%
• estuaries 8%
• total nitrogen 8%
• wastewater 7%
• nitrogen fertilizers 7%
• pollution 6%
• rivers 6%
• rain 6%
• ecology 6%
• methodology 4%
• water 3%

Earth & Environmental Sciences

• urban area 43%
• nitrogen 33%
• analysis 15%
• river water 11%
• atmosphere 11%
• urban agriculture 8%
• city 7%
• land 7%
• rainwater 6%
• sewage treatment 6%
• emission reduction 6%
• cooperation 5%
• pumping 5%
• fertilizer 5%
• metabolism 5%
• ecology 4%
• estuary 4%
• human activity 4%
• watershed 4%
• food 4%
• wastewater 4%
• pollution 4%
• methodology 3%
• station 3%
• sea 3%
• river 3%
• water 1%
• method 1%

Engineering & Materials Science

• Nitrogen 52%
• Rivers 21%
• Nitrogen fertilizers 12%
• Water 11%
• Fluxes 11%
• Sewage treatment plants 11%
• Estuaries 10%
• Metabolism 9%
• Watersheds 8%
• Ecology 8%
• Agriculture 7%
• Wastewater 7%
• Pollution 6%