• KSCE Journal of Civil and Environmental Engineering Research
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• v.30 no.1B
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• pp.53-60
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• 2010

A wetland is an ecosystem which has high species diversity, rich nutritional substances and high productivity. In this study we used the HGM(Hydrogeomorphic) approach among various evaluation models for the assessment of the Hwapo riverine wetland function. HGM is a method which estimates the functional index of a study wetland by comparing it with a reference wetland. In this study the Woopo wetland which is registered in the Ramsar Convention was selected as a reference wetland to assess the functional index of the Hwapo wetland. As the results, we obtained the functional index values over 0.6 for most indices of the Hwapo riverine wetland. Therefore we found that the Hwapo riverine wetland shows relatively high functional index values comparing with the Woopo wetland and it has valuable hydrological, biochemical, plant habitat, and animal habitat functions.

• Journal of Wetlands Research
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• v.19 no.1
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• pp.1-15
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• 2017

Wetland function assessment is not only a basic step to understand wetland ecosystems in detail but also an important process as a base of the term, ecosystem service to recognize wetland ecosystems as valuable and useful resources and goods for human being. WET (wetland evaluation technique), EMAP (environmental monitoring assessment program)-wetlands, and HGM (hydrogeomorphic method) were developed as pioneer wetland function assessments in U.S. at the end of $20^{th}$-century. RAMs (rapid assessment methods) became a major function assessment tool which is relatively simpler and easier assessment tool at the beginning of $21^{th}$-century. After that, the hierarchy of three levels of assessment (landscape assessment, rapid assessment, and intensive assesment) has been prepared and strategically utilized according to the objectives and purposes of function assessments. In South Korea, RAM and HGM were used to assess wetland functions with reforming a couple of items and contents at 2001. And, modified and reformed function assessments have been developed to complement and improve upon the existing RAMs and HGMs. Via the trend analysis on wetland function assessments, some needs which require supplements in terms of function assessment are pointed out: 1) wetland function assessments using useful indicators such as birds are needed with considering our environmental characteristics. 2) optimized wetland function assessments for coastal wetlands are also needed. 3) the network construction and further expansion to lead communications and co-operations between researchers and policy makers is needed in the field of wetland function assessment.

• Journal of Wetlands Research
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• v.13 no.3
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• pp.665-675
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• 2011

Dam as a Wetland can provide functions of ecological conservation, water quality improvement, landscape, and so on as well as. Dam's own various functions. Here we tried to assess function and value of Yongdam dam as a wetland by Hydrogeomorphic(HGM) Method which was developed by U.S. Army Corps of Engineers. In this study, the Upo wetland and Boryeong dam were selected as reference wetlands to assess the functional index of the Yongdam dam. As the results, we obtained the functional index values over 0.6 for total index of the Yongdam dam. It describes that Yong dam dam-wetland is providing over 60% functions of the Upo wetland and Boryung dam-wetland. This result suggests that dam-wetland can provide good wetland functions efficiently if we conserve and manage well.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.4 no.2
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• pp.11-25
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• 2001

A wetland is an ecosystem which is the most useful and highly-energetic transition area. This study has been carried out to classify and identify the various types of wetlands in Korea. The main objective of this study are 1) defining and classifying of wetlands, and 2) identifying the wetlands characteristics, and 3) studying cases on the natural wetlands such as Han river, DMZ(Demillitarized Zone), Upo wetland and Yong(Dragon) wetland. The results as follows： 1) Development of the indices for identifying and classifying wetlands in encompassing in such as Ramsar Conference, US NWI(National Wetlands Inventory), Hydrogeomorphic system. 2) Development on the classifying method on the wetlands in the level of supersystem, system, subsystem, class and subclass. The systems include Palustrine and Riverine, and the subsystems are Seasonal, Permanent(Palustrine) and Impersistent, Lower perennial, Impersistent (Riverine). 3) Finally, we find out Young wetland is Palustrine/Permanent/Slope/Persistent, and Upo wetland consists of various types of wetlands, those are, Palustrine/Permanent/Depression/Forest Deciduous, Palustrine/Permanent/Depression/Shrub Deciduous, Palustrine/Permanent/Depression/Persistent, Palustrine /Permanent/Depression/Hydrophytes, and Lacustrine/Permanent/Openwater/Hydrophytes. The taxonomy of this study stems from identifying and classifying wetlands with indices mainly based on hydrologic features and substrates. So, it is needed that consequent studies are to be performed with various viewpoints. And the studying cases were limited because of the restricted entrance into the DMZ, And, we selected only 10 crucial sites in Han river as the subject for wetlands regulation and creation. And, for advanced studies, drawing up inventory and mapping are necessary.

• Proceedings of the Korea Water Resources Association Conference
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• 2012.05a
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• pp.187-187
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• 2012

최근 환경에 대한 관심이 증대하면서 생물다양성, 홍수조절, 온실가스 저감 등 다양한 기능을 수행하는 습지에 대한 보전 및 복원을 위한 많은 노력들이 진행되고 있다. 습지 보전 및 복원을 위한 다양한 방안 중 하나가 댐 및 주변지역을 습지로 조성하여 활용하는 방안이라고 할 수 있으며, 이를 위해서는 댐 및 주변지역의 습지로서의 활용을 위한 특성 파악이 우선적으로 이루어져야 한다. 따라서 본 연구에서는 댐 주변지역에 조성된 습지와 댐 저수지 자체를 모두 포함하여 댐습지라고 정의하고, 댐습지가 지니고 있는 습지의 기능 및 경제적 가치를 추정하고자 하였다. 본 연구의 대상지역은 기준습지와 대상습지로 구분되며, 기준습지는 우포늪과 보령댐, 대상습지는 용담댐이다. 댐습지의 기능평가는 수문지형학적 특성을 고려하는 HGM(Hydrogeomorphic Method)을 이용하였으며, 가치평가는 조건부가치측정법(CVM)을 이용하였다. 기능평가 결과는 우포늪과 보령댐을 각각 기준지역으로 선정하였을 경우로 구분하여 나타낼 수 있다. 자연습지인 우포늪을 기준지역으로 선정하였을 경우에는 댐의 주목적과 관련이 있는 수문학적 기능이 높게 평가되었으나 습지 내에서 진행되는 생지화학적 기능과 다양한 식물 종에 대한 서식처로써의 기능은 다소 미흡한 것으로 평가되었다. 보령댐을 기준지역을 선정하였을 경우에는 일부 기능을 제외하고 대부분의 기능이 유사한 것으로 평가되었다. 조건부가치측정법을 이용한 용담댐의 경제적 가치평가는 댐습지 생태공원조성에 따른 훼손된 습지의 보호, 희귀생물종의 보호, 휴양 및 여가기능 제공을 주요인으로 설정하고 설문조사를 수행하여 가치를 추정하였다. 그 결과 용담댐의 총 가치는 우포늪의 가치와 비교하였을 때 우포늪의 35~41%에 해당하는 것으로 추정되었다. 본 연구에서 수행된 댐습지의 기능 및 가치평가 결과는 댐이 단순히 이 치수 측면으로만 이용되는 것이 아니라 생태학적으로도 활용성이 있다는 사실을 나타내고 있다. 이를 통해서 향후 댐의 친환경적 활용 방안 및 댐습지 관리 방안에 중요한 기초자료로 활용될 수 있을 것으로 판단되며, 댐에 대한 긍정적인 인식 증진에도 많은 도움이 될 것으로 판단된다.