北京市污水灌溉对农业环境影响的经济损失评估(doc43)(1)VIP免费

第1页共81页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共81页北京市污水灌溉对农业环境影响的经济损失评估杜洁摘要严重缺水是制约首都农业发展的瓶颈，使用处理后的城市污水进行农田灌溉是一个缓和用水紧张局面的可行方法。但是，目前人们对于污水灌溉在认识上还存在很多误区，导致其在人体健康、土壤、地下水和农作物的影响等诸方面形成的污染日益严重。本研究就是针对北京市污水灌溉的环境污染问题利用环境经济学的理论方法，进行了污水灌溉的环境成本估算,以期为北京市科学合理的发展污水灌溉技术提供依据。研究表明，2002年北京市使用污水灌溉造成的农业环境经济损失已达19.84亿元，占全年农业生产总值的8.61%。其中，农作物产量降低和品质下降的经济损失已达到约14.33亿元，占总环境损失的72.23%。排在第二位的是人群健康所受影响的的经济损失，为5.38亿元，占总环境损失的27.12%。第2页共81页第1页共81页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第2页共81页关键词：污水灌溉,农业环境污染,经济损失评估第3页共81页第2页共81页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第3页共81页AbstractThedevelopmentofourCapitalisstrictlylimitedbythelackofwater.Sewageirrigationisagoodwaytoreusewater.Butbecauseoftheinsufficiencyunderstandingofit,theuseofsewagewasveryun-scientificuptonow.Itspollutiontothesoil,groundwater,cropandpeoplehealthismoreandmoreseriousthanbefore.Thepaperistoevaluatetheimpactsofsewageirrigationonagro-environmentalqualityinBeijing.Weuseenvironmentaleconomymethodstoevaluatetheenvironmentalcostofsewageirrigation,hopeingtheconclusionofuscangivesomebasistothescientificdevelopmentofwastewaterirrigationinBeijing.Theconclusionoftheresearchsaying,theagro-第4页共81页第3页共81页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第4页共81页environmentalcostcausedbysewageirrigationinBeijingduring2002hasachieved1.984billionyuan,accordingto8.61%oftotalincomeofagriculturein2002.Amongthosethecostofcropis1.433billionyuan,accordingto72.23%ofthetotalagro-environmentalcost.Followingisthecostofpeoplehealth,538millionyuanand27.12%.Keyword:sewageirrigation,agro-environmentalpollution,economiclossevaluation第5页共81页第4页共81页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第5页共81页目录第一章引言··················································11.1研究的背景与目的···············································11.1.1我国水资源短缺现状·········································11.1.2北京市污水灌溉现状概述···························第6页共81页第5页共81页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第6页共81页··········11.2本研究的意义···················································51.3国内外污水灌溉发展过程与利用现状·······························51.4研究方案与技术路线·············································61.4.1研究方案····················································61.4.2技术路线····················································8第二章环境污染经济损失评估的理论分析························9第7页共81页第6页共81页编号：时间：20...