• Title/Summary/Keyword: Degraded forest area

Search Result 43, Processing Time 0.017 seconds

Exploring Sub-watershed suitable to UN-REDD/AR-CDM by Comparative Evaluation of Carbon Stock in Baekdu Mountain (백두산에서 탄소저장량 비교분석을 통한 UN REDD/AR-CDM 등록대상 소유역 추적)

  • Joo, Seung-Min;Um, Jung-Sup
    • Spatial Information Research
    • /
    • v.22 no.2
    • /
    • pp.1-9
    • /
    • 2014
  • UN-REDD (United Nations programme on Reducing Emissions from Deforestation and forest Degradation in Developing Countries) and AR-CDM (Afforestation/Reforestation-Clean Development Mechanism) is currently being emerged as one of important mechanism to reduce carbon dioxide in relation to the deforestation. Discussion on North Korea as UN-REDD/AR-CDM project target continues with a view to preventing deforestation and to securing CER(certified emission reduction) for South Korea. The forests in Mt. Baekdu are degraded, deforestation is occurred, nevertheless, portion of forested area is still high, where both REDD and AR-CDM investment potential are quite high. Accordingly, this study is intended to explore a simultaneous registration potential to UNREDD/AR-CDM for Mt. Baekdu although separate registration to UN-REDD or AR-CDM has already gained worldwide recognition as a typical method in the process of GHG (Greenhouse Gas) reduction project. The results indicate that selecting UN-REDD or AR-CDM in accordance with sub-watershed forest condition could capture 53.2% more carbon dioxide than REDD alone and 21.9% more than AR-CDM alone. It is anticipated that this research output could be used as a realistic evidence to introduce carbon sequestering project in accordance with sub-watershed forest condition.

Electron Microscopic Observation on the Decay of the Waterlogged Woods Excavated from Higokri, Pyungtaek (평택 희곡리 출토목재 부후형태의 전자현미경적 관찰)

  • Kim, Soo-Chul;Park, Won-Kyu
    • Journal of Conservation Science
    • /
    • v.23
    • /
    • pp.67-72
    • /
    • 2008
  • This study was conducted to examineboth the type of wood decay and the degree of degradation for the waterlogged woods (Alnus spp. and Fraxinus spp., about 5,700~5,900 year old), which were excavated at Higokri, Pyungteak in the west-coastal region of Korea. The transmission electron microscope (TEM) observation indicated the degradations by soft rot and bacteria were common in both woods. Erosion bacteria attacked gradually and irregularly from the secondary layer to compound middle lamella and often produced the cavity which was similar to soft-rot cavity but much smaller ones. Tunneling bacteria decomposed mainly $S_2$ layer. Though of highly degraded walls, the cells almost kept the original form with intact lignin-rich middle lamella, which were saturated by water. No marine borer's trace indicated that the sealine rise in the western coast of Korean peninsula during the climate optimum period in the holocene might not be high enough to submerge the Higokri area which locates about 2 km from the present sealine.

  • PDF

Classification of the Damaged Areas in the DMZ (Demilitarized zone) by Location Environments (입지 환경 인자를 이용한 DMZ 남측 철책선 주변 훼손지 유형화)

  • Bak, Gi-Ppeum;Kim, Sang-Jun;Lee, Ah-Young;Kim, Dong-Hak;Yu, Seung-Bong
    • Journal of the Korean Society of Environmental Restoration Technology
    • /
    • v.24 no.2
    • /
    • pp.71-84
    • /
    • 2021
  • Restoration of DMZ has come up with the discussion on the peaceful use of the DMZ and the conservation plan of the army. In this study, we aim to identify soil characteristics of 108 sites to figure out environmental conditions around the iron fence of DMZ where vegetation has been removed repeatedly. Based on the soil characteristics and climate variables, hierarchy clustering was performed to categorize sites. As a result, we categorized 108 sites into 4 types: middle elevation region, lowland, East coast lowland, other areas. Group of 'other area' is only high in nutrient and clay proportion. Others are in igneous rock and metamorphic rocks with a high proportion of sand and lower nutrients than the optimum range of growth in Korean forest soil. The middle elevation region has a high altitude, low temperature. The east coast lowland has a high temperature in January and low precipitation. The lowland has a low altitude and high temperature. This category provides the environmental condition around the DMZ fence and can be used to select plants for restoration. The restoration project around the DMZ iron fence should satisfy the security of military plans, which means that functional restoration is prior to ecological restoration such as vegetation management under a power line. Additionally, improvement of soil quality and surface stability through restoration projects is required to enhance the resilience of the ecosystem in DMZ.