淮河下游小流域空间开发功能分区研究-以江苏沿海地区为例

基于区域开发与水环境保护的相互作用关系,以江苏沿海地区某小流域为研究对象,在流域层面上,建立定性与定量相结合,环境、经济、社会紧密结合的区域分析方法。选取水体使用功能、水质目标、清水通道、水体通达性、现状水质达标情况5项指标,将流域分为强约束区、较强约束区、中等约束区、弱约束区4类空间开发功能区。以此为依据,对各分区针对性提出了空间开发和产业发展的导向。其中水环境约束较弱的地区可以适当布局酿造、造纸、化工等水污染物排放量相对较大的产业;水环境约束较强的地区需要严格控制乃至禁止水污染物排放量大的产业,而适度发展编织品制造等不排水的农副产品加工业,或清洁生产水平先进、中水回用率高、排水量小的家具制造、木材加工等。

Functional Zoning for Spatial Development of Downstream Small River-basin of Huihe: A Case Study in Jiangsu's Coastal Regions

With a view of coordinating the relationship between regional economic development and water environmental protection in the coastal regions of Jiangsu Province,a typical small river basin downstream Huaihe River was chosen to study in terms of functional zoning.In a watershed scale,a method was established for qualitatively and quantitatively analyzing the regional development taking into consideration of the economical growth,social welfare and environmental conservation,in which five factors related to the water environment were selected such as utilization of the waterway,target for water quality protection,accessibility for cleaner water,communicable status of the waterway and status quo of the water quality.In addition,based on hierarchical analysis of the above five factors,the study region was divided into four different areas to limit the industrial development according to the different levels of industrial pollution,e.g.,only the industrial sectors,which discharge less wastewater and have advanced cleaner production techniques plus higher waster reuse rate,can be allowed to be built in the region that is the extremely restrained.