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The studies on promoting forest carbon sequestration to meet Paris climate agreement targets
Seok Hyun-deok(서현덕),An Hyunjin(안현진),Choi Junyeong(최준영),Ibrahim Muhammad,Tobar Diego 한국농촌경제연구원 2016 한국농촌경제연구원 정책연구보고서 Vol.- No.-
The new emission standards from the Paris agreement presented us with many challenges. Since the role of developing countries in responding to climate change is becoming more significant, Korea, which has not been obliged to reduce climate change so far, should prepare groundbreaking carbon reduction strategies. In addition, we need to strengthen international cooperation to arrive at global solutions to climate change, since carbon emission will induce climate change regardless of which countries emit it. With this background, KREI in Korea and CATIE in Costa Rica performed joint research to seek effective forest action to mitigate and adapt to climate change. Forests make up the largest terrestrial carbon reservoir, sequestrating 30% of annual global anthropogenic CO2. Because two countries have abundant forest resources, it would be expected that responding to climate change using forest resources could be an optimal strategy for both countries. This paper includes details from two different researches. The first research was done by CATIE in Costa Rica with its major objective being to determine the effect of payment for environmental services (PES) as it related to the performance of a silvopastoral (SP) system in Esparaz, Costa Rica. The payment for ecosystem services (PES) has been piloted and implemented in various parts of the world, with an objective of encouraging farmers to engage in environmentally friendly practices to enhance biodiversity. In this strategy, an environmental services index (ESI) is set and farmers are paid for their activities that provide a net increase of the ESI points. A previous study shows that the use of PES initiatives has resulted in increased environmental biodiversity characterized by a reduction in the degraded pastureland and an increase in the portions of pasture with high tree density (Pagiola et al., 2007). The use of PES programs on a silvopastoral (SP) system in Costa Rica also increased the rate of trees’ reintroduction and live fences, thereby improving biodiversity habitat and the levels of carbon sequestration. However, the main concern associated with the use of PES initiatives is the long-term sustainability of the programs as a result of the financial resources required to pay the farmers and the continuity of the programs once the payments have stopped. The second research, performed by KREI in Korea, examines efficient forest regulation planning to enhance carbon sinks in forests using linear programming (LP). Forest management has been taken into consideration to increase forest carbon sequestration and sustainability. However, as Duangsathapon and Prasomsin (2005) argued, forest management can be a challenging and daunting task, calling for the application of scientific methods to ensure proper planning and utilization of environmental resources such as trees in forests. The LP model has been applied to foster proper management of the forest trees. Using the LP model, managers are able to segment forests into cutting units, in which trees that share the same age are segregated, and logging activities are allowed in different segments on a rotation basis to mitigate total deforestation. This model has fostered the maintenance of the tree covers in forests through regulated logging and improved the maintenance of sustainable carbon sequestration in trees. Current unbalanced age structure of Korean forests cannot provide both economic and environmental sustainability. Through harvest prescription from LP, we derived the balanced age-class distribution that constitutes improved conditions for sustainable use of forest resources. Even though there are several limitations, our LP model would provide the forest managers and policy makers with a tool for implementing cost-efficient forest planning.
서현덕 ( Hyun Deok Seo ),정병수 ( Byoung Soo Chung ),최규철 ( Kyu Churl Choi ),신봉석 ( Bong Seok Shin ) 대한피부과학회 2009 大韓皮膚科學會誌 Vol.47 No.2
Background: Telogen effluvium (TE) is a form of nonscarring alopecia, characterized by diffuse scalp hair thinning in response to some form of physiologic stress. It is commonly described in women subsequent to childbirth. Objective: The purpose of this study was to evaluate the prevalence of TE after childbirth. Methods: Medical records from January 2006 to June 2007 of 240 postpartum patients from our obstetric department were reviewed. Telephone interviews with TE patients were conducted to investigate the initial occurrence time, restoration time, and treatment history. Results: Prevalence of TE according to parity is higher in multiparas than primiparas (p=0.026). In addition, the prevalence of TE after a cesarean section delivery is higher than that after non-surgical delivery (p=0.014). Prevalence of TE with respect to weight gain is higher in the groups displaying agreater increase in weight (p=0.014). Finally, prevalence of TE according to gestational age is higher in groups giving birth after 38 weeks gestational age (p=0.015). Conclusion: Prevalence of telogen effluvium may be associated with multiparity, cesarean section, marked weight gain, and high gestational age. (Korean J Dermatol 2009;47(2):127∼131)
서현덕 ( Hyun Deok Seo ),나찬호 ( Chan Ho Na ),정병수 ( Byoung Soo Chung ),최규철 ( Kyu Cherl Choi ),신봉석 ( Bong Seok Shin ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.4
Pyoderma gangrenosum is a painful, chronic, ulcerating skin disease associated with a wide variety of disorders, including Crohn`s disease, ulcerative colitis, and Behcet`s disease. Etiology of pyoderma gangrenosum is unknown but the lesions frequently appear at points of trauma and it is related with pathergy. We report a case of post-traumatic pyoderma gangrenosum occurring in ulcerative colitis with a review of the literature. (Korean J Dermatol 2008;46(4):487~490)
Jessner`s Lymphocytic Infiltration of the Skin
신봉석 ( Bong Seok Shin ),서현덕 ( Hyun Deok Seo ),나찬호 ( Chan Ho Na ),최규철 ( Kyu Churl Choi ),정병수 ( Byoung Soo Chung ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.7
Jessner`s lymphocytic infiltration of the skin (JLIS) is a well-known but poorly understood disorder. Some doubt still exists about whether it is a distinct disease or a variant of lupus erythematosus or, less commonly, polymorphous light eruption, cutaneous lymphoid hyperplasia. An effective therapy is still unavailable for JLIS. We report a patient with JLIS which was successfully treated with dapsone and intermittent systemic glucocorticoid therapy. (Korean J Dermatol 2008;46(7):977~980)
김미경(Mi Kyoung Kim),홍석지(Seok Ji Hong),신정호(Jung Ho Shin),서현덕(Hyun Deok Seo) 충북대학교 생활과학연구소 2015 생활과학연구논총 Vol.19 No.1
The purpose of this study was to analyze the current status and improvement of healing environment for children focused on the play therapy centers. A document research and field survey were used to analyze and classify the spatial characteristics of four play therapy centers in Seoul that were opened in 2005 or later. The results are as follows; (1) The play therapy room should be considered for secure of area and separation from management and service areas. (2) The types of storage furniture in play therapy room were verified in three aspects; the open type, closed type and mixed type. The open type is needed to be considered in planning with accessibility of children to educational materials, but the closed type can be applied in terms of creation of vibrant interior image. (3) Safety, diversity and environment -friendly interior finishing materials should be applied in planning of the play therapy room for children with developmental disabilities. (4) Interior walls of play therapy room can be covered with patterned, decorated and pastel-colored wallpapers not to be monotonous interior atmosphere. (5) Elements of natural landscape such as planting, waterfront space and interior landscaping should be considered in creating healing environment for children.
문재원 ( Jae Won Moon ),나찬호 ( Chan Ho Na ),서현덕 ( Hyun Deok Seo ),최규철 ( Kyu Chul Choi ),신봉석 ( Bong Seok Shin ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.12
Liposarcomas are one of the most common soft-tissue sarcomas in adults. They usually arise in the deep soft tissues, and patients present with large painless masses. Four major types of liposarcomas are generally recognized and have epidemiologic and prognostic differences: atypical lipomatous neoplasm/well-differentiated; myxoid/round-cell; dedifferentiated; pleomorphic variants. Myxoid liposarcoma is the second most common type of liposarcoma, representing 30∼40% of all liposarcomas in the extremities. We report a case of myxoid liposarcoma in a 78-year-old man who presented with an asymptomatic, firm, deep-seated mass in the lateral aspect of his left upper arm. (Korean J Dermatol 2008;46(12):1629∼1633)