http://www.fao.org/nr/aquastat.　与本指标有具体关联的参考材料:　\uf0b7　AQUASTAT　glossary:　http://www.fao.org/nr/water/aquastat/data/glossary/search.html　\uf0b7　AQUASTAT　Main　country　database:　http://www.fao.org/nr/water/aquastat/data/query/index.html?lang=en　\uf0b7　AQUASTAT　Water　use:　http://www.fao.org/nr/water/aquastat/water_use/index.stm　\uf0b7　AQUASTAT　Water　resources:　http://www.fao.org/nr/water/aquastat/water_res/index.stm　\uf0b7　AQUASTAT　publications　dealing　with　concepts,　methodologies,　definitions,　terminologies,　metadata,　etc.:　http://www.fao.org/nr/water/aquastat/catalogues/index.stm　\uf0b7　AQUASTAT　Quality　Control:　http://www.fao.org/nr/water/aquastat/sets/index.stm　\uf0b7　AQUASTAT　Guidelines:　http://www.fao.org/nr/water/aquastat/sets/aq-5yr-guide_eng.pdf　\uf0b7　For　surface　water,　environmental　water　requirement　databases　include:　http://waterdata.iwmi.org/apps/flow_management_classes/　\uf0b7　http://www.iwmi.cgiar.org/resources/models-and-software/environmental-flow-calculators/.　Environmental　water　requirement　data　for　groundwater　b