A5010829524- Hydrology and Sediment Transport Processes
- Soil erosion and sediment transport
- Fish Ecology and Management Studies
- Hydrology and Watershed Management Studies
- Isotope Analysis in Ecology
- Marine and coastal ecosystems
- Soil and Water Nutrient Dynamics
- Environmental DNA in Biodiversity Studies
- Marine and Coastal Research
- Ecology and Conservation Studies
- Freshwater macroinvertebrate diversity and ecology
- Agriculture, Soil, Plant Science
- Ecology and biodiversity studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Microbial Community Ecology and Physiology
- Water Quality and Pollution Assessment
- Hydraulic flow and structures
- Marine Bivalve and Aquaculture Studies
- Geochemistry and Geologic Mapping
- Water Resources and Management
- Species Distribution and Climate Change
- Water Quality Monitoring and Analysis
- Coastal wetland ecosystem dynamics
- Arctic and Antarctic ice dynamics
- Coastal and Marine Management
National Institute of Ecology
2017-2024
Hanyang University
2016
University of California, Berkeley
2015
Kyoto University
2010-2013
Sediment replenishment below dams is an increasingly common practice in Japan to compensate sediment deficits downstream and improve habitat quality ecological functions. We reviewed implementation methods the context of placement, compared design activities undertaken Nunome River Trinity California. was supplied with a maximum 500 m3 mixed sand-gravel stream channel from single site through high-flow stockpile method during relatively small (80 m3/s) short (less than 4 hours) peak flow....
In this study, surface water samples were collected at sites located in the lowest reaches of closed (Geum) (i.e. with an estuary dam river mouth) and open (Seomjin) systems between May 2016 2018. We analyzed concentrations stable isotopes particulate organic carbon (POC) dissolved (DOC) to assess OC sources, estimate fluxes riverine OC, some factors driving exports these two contrasting Korean systems. Our geochemical results suggest that contribution phytoplankton-derived POC total pool...
ABSTRACT We estimated the contribution of reservoir‐derived plankton released from an upstream dam to particulate organic matter (POM) relative terrestrial allochthonous (fallen leaves) and instream autochthonous (downstream epilithic algae) sources in Uji River, Japan, investigate influence reservoir on downstream POM composition. Four types such as suspended fine, coarse, benthic fine coarse were collected then analyzed using two mixing models combining δ 13 C– 15 N: a standard linear...
To investigate the effect of summer monsoon-derived inputs particulate organic matter (POM) on patterns stable isotopes in food web a reservoir, we traced dietary sources carbon and nitrogen pelagic zooplankton herbivorous littoral zoobenthos following monsoonal disturbance Lake Paldang, large regulated reservoir Korea. Carbon were analyzed POM, zooplankton, sedimentary matter, zoobenthos, piscivorous fishes pre- post-summer monsoon periods. Sharp depletion 13C enrichment 15N POM along with...
본 연구는 상류역에 댐이 존재하지 않는 충적하천에서 과거 이치수 위주의 하천정비사업이 하도지형의 장기적인 변화에 미치는 영향과 그원인을 유사계의 관점에서 파악하는 것을 목적으로 하였다. 영산강 유역의 지석천 중하류역을 대상으로 하도선형, 사주형태와 식생활착율 등의 하도의 평면형상 변화를 분석하고, 하상재료 및 하상변동 조사를 실시하였다. 자연적인 충적하천 당시(1966년)와 제방과 저수로, 취수보 건설 하천정비사업으로 변모된 최근(2002년)의 항공사진의 비교분석결과, 유로형태의 변화(단일사행에서 다지형화), 하도선형의 만곡도 감소(9.2%), 지천사주의 확장, 그리고 사주의 식생활착(97%) 현상이 발견되었다. 이와 같은 주수로 고정화와 사주내 식생이입은 댐하류 조절하천에서 나타나는 대표적인 평면 하도특성으로, 대상구간에서도 댐하류역과 유사한 유황의 변화 또는 유사량 감소가 영향을 미치고 있음을 추정할 수 있다. 유황변동 조사결과, 비록 하천에서 연간 수위변동의 균일성은...
As the tidal flat of Yubudo island located at Geumgang River estuary was registered as a UNESCO World Natural Heritage in 2021. It is essential to investigate spatiotemporal change for sustainable conservation. This study aims obtain high-resolution DEM continuous monitoring sedimentary landform, and analyze morphological characteristics intertidal around island. Sedimentary landform analyzed using orthographic images point cloud data which were obtained study. On west side comprised sandy...