새만금 사업에 따른 환경문제 = Environmental Problems associated with Saemangeum Project

다국어 초록 (Multilingual Abstract)

Environmental problems associated with Saemangeum project are evaluated through litera-ture review. The main purpose of this research is to study what is major problems of present counterplan for pollution abatement in Saemangeum area and to study how to cope with situation. Two major problems are pointed out. The one is economic comparison between conserving the wet land and reclamation should have done and environmental impact assessment of Saemangeum project was not appropriate. The other is existing countermeasure for maintaining water quaJity of Saemangerm lake to desired level is not satisfactory.
When considering the fact that about 35% of dike is built already, not only simple stopping of dike construction without any provision of ecological remediation programe in Saemangeum wetland but also continuing reclamation project without further provision of pollution abatement can not be justified in view of environmental standpoint. It is inevitable to avoid serious water poJiution of Saemangeum lake unless substantial revion will be made to existing poJiution abatement program. Additional counterplan should be provided as soon as possible. It is necessary that construction and repairing sewer system, control and management of non-point source, construction of nutrient removal syst41em should be included in existing plan for the reduction of pollutant load.Excess discharge of phosphorus from watershed is typical characteristics of
area. Main source of phosphorus is animal wastes that acts as non-point source
pollutant. Thus, control and management of animal wastes is key factor in reducing
phosphorus loading from Saemangeum watershed. It is apparent that not only schemes for reducing pollutant loading from Saemangeum watershed but also schemes for improving water quality of Saemangeum lake should be revised in order to meet desired water quality standard. Using 470 million tons/yr of Keum river water as dilution water and dischsrging bottom water of lake periodically to open sea are the main counterplans provided by Rural Development Corporation for
improving water quality of Saemangeum lake. However, It seems that these counterplans have some problems. In stead of it, several counterplans can be suggested for improving water quality of Saemangeum lake. In view of water quality, it is doubt that whether Keum river can be used as dilution water or not. It is thought that minimizing lake capacity and allocation of several small lakes instead of one big lake, instal1ing forced vertical circulating system using aerator are better counterplan than present scheme, that is, discharging bottom water of lake periodically to open sea. Designation of Saemangeum watershed as the special counterplan region based on law can be recommended. Land development plan after reclamation should be determined as soon as possible before completion of dike construction.

목차 (Table of Contents)

• Abstract
• Ⅰ.머리말
• Ⅱ.새만금 간석지 개발에 따른 문제점
• Ⅲ.수질 보전 대책상의 문제점(새만금호를 중심으로)
• Ⅳ.맺는 말
• Ⅴ.참고자료