摘要
利用北京市山区坡面径流小区实际观测资料,进行了山区非点源污染与水土流失关系的分析,说明了水土流失是非点源污染物的载体和水体污染的主要途径,影响非点源污染物流失和水土流失的主要因素一致,污染物流失量随着水土流失量的加大而加大。目前北京市在非点源污染治理方面,已实现了从以末端治理为主向从源头上控制为主的综合治理的转变,生态清洁小流域建设将水土流失和面源污染防治作为治理目标,在小流域内构筑"生态修复、生态治理、生态保护"三道防线,已在水源保护方面取得了显著的效益。
It analyzes the relationship between non-point pollution and soil and water loss of mountainous area by using the observed data of slope runoff plots of mountainous area in Beijing and shows that soil and water loss is the carrier of non-point pollution and the main channel of water pollution, affecting the loss of non-point pollution pollutants and the main factor of soil and water loss are identical and the amount of pollutant lost is increased along with the increase of soil and water loss. At present, Beijing Municipality has achieved the transformation of the integrated treatment strategy from taking terminal treatment as the main to taking the source control as the main. The building of ecologic and clean-type small watershed will take the prevention and control of soil and water loss and area-source pollution as the target. The three lines of defence of 'ecologic rehabilitation, ecologic treatment and ecologic protection' built in small watersheds has achieved remarkable benefits on the aspect of water source protection.
出处
《中国水土保持》
北大核心
2007年第9期10-11,52,共3页
Soil and Water Conservation in China
关键词
非点源污染
水土流失
载体
途径
综合防治
北京
non-point pollution
soil and water loss
carrier
way
integrated prevention and control
Beijing
