论文部分内容阅读
www.waterweb.org水网www.vicwaterdata.net水资源管理数据库www.epa.gov/ow美国环境保护组织水源办公室www.southwestwater.com美国西南供水公司www.irrigation.org美国灌溉学会www.westernwater.com加拿大西部供水www.worldwater.org水世界www.waterandnature.org水与自然www
www.waterweb.org Water Network www.vicwaterdata.net Water Resources Management Database www.epa.gov/ow Water Resources Office of the United States Environmental Protection Agency www.southwestwater.com Southwest Water Company www.irrigation.org American Institute of Irrigation www.westernwater. com Western Canada Water www.worldwater.org Water World www.waterandnature.org Water and Nature www