行政院國家科學委員會專題研究計畫成果報告:環境永續性評估、管理程序與方法之建立─子計畫二：環境承載力、總量管制與政策環評之研究─水資源面向 (III)
Date Issued
2004
2004-07-31
Date
2004
2004-07-31
Author(s)
DOI
922621Z002002
Abstract
The major task of this report is to establish the method of the total mass control of
water quality and quantity. The total mass control method is to allocate the total mass
(carrying capacity) based on considering the cumulative impact. The Tochen creek
watershed is used as a case study.
In the aspect of the water quantity, a system dynamic model is developed to assess
the capacity of water supply. Shortage Index (SI) with the value of 1 and agricultural
shortage index (ASI) with the value of 0.8 are used as standards to determine the
capacity of water supply for public and agriculture, respectively. Then, cumulated
water demands are estimated from different users to test whether water supply is
sufficient. This study currently only evaluates the relationships between potential water
supply and possible water demand. In future, an optimization model will be developed
to determine the best allocation of water supply. In the aspect of the water quality, the
cumulative impact and optimal allocation of allowable pollutant discharges are
included in developing total mass control method. The cumulative impact is simulated
by QUAL2e model and the optimal allocation of allowable pollutant discharges is
determined by a multiobjective optimal model.
This research suggests that environmental resources and assimilation capacity can
be allocated to land and expressed as unit area load for future environmental
management. Besides, strategic environmental assessment (SEA) is applied to evaluate
the impacts of police, program, or plan on unit area load, while project environmental
impact assessment (EIA) is applied to assess whether a developing project violates the
standard of unit area load. Thus, SEA and EIA are linked together by using unit area
load. The study also analyzes the process of SEA and modifies the evaluation matrix of
SEA by considering factors to influence carrying capacity and cumulative impacts.
Publisher
臺北市：國立臺灣大學生物環境系統工程學系暨研究所
Type
report
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