• 제목/요약/키워드: Forest Survey

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Households' Characteristics, Forest Resources Dependency and Forest Availability in Central Terai of Nepal

  • Panta, Menaka;Kim, Kyehyun;Lee, Cholyoung
    • 한국산림과학회지
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    • 제98권5호
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    • pp.548-557
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    • 2009
  • For centuries, forests have been a key component of rural livelihood. They are important both socially and economically in Nepal. Firewood and fodder are the basic forest products that are extracted daily or weekly basis in most of the rural areas in Nepal. In this study, a field survey of 100 households was conducted to examine the degree of forest dependency and forest resource availability, households' livelihood strategy and their relationship with forest dependency in Chitwan, Nepal. A household' response indexes were constructed, Gini coefficient, Head Count Poverty Index (HCI) and Poverty Gap Index (PGI) were calculated and one way ANOVA test was also performed for data analysis. Data revealed that 82/81% of all households were constantly used forest for firewood and fodder collection respectively while 42% of households were used forest or forest fringe for grazing. The Forest Product Availability Indexes (FPAI) showed a sharp decline of forest resources from 0.781 to 0.308 for a 20-yr time horizon while timber wood was noticeably lowered than the other products. Yet, about 33% of households were below the poverty threshold line with 0.0945 PGI. Income distribution among the household showed a lower Gini coefficient 0.25 than 0.37 of landholdings size. However, mean income was significantly varies with F-statistics=246.348 at P=0.05 between income groups (rich, medium and poor). The extraction of firewood, fodder and other forest products were significantly different between the income group with F-statistics=16.480, 19.930, 29.956 at P=0.05 respectively. Similarly, landholdings size and education were also significantly different between the income groups with F-statistics=4.333, 5.981 at P=0.05 respectively. These findings suggested that income status of households was the major indicator of forest dependency while poor and medium groups were highly dependent on the forests for firewood, fodder and other products. Forest dependency still remains high and the availability of forest products that can be extracted from the remaining forestlands is decreasing. The high dependency of households on forest coupled with other socioeconomic attributes like education, poverty, small landholders and so on were possibly caused the forest degradation in Chitwan.Therefore, policy must be directed towards the poor livelihood supporting agenda that may enhance the financial conditions of rural households while it could reduce the degree of forest dependency inspired with other income generating activities in due course.

환경인자에 따른 소나무림의 생태적 지위에 관한 연구 (A Study on Ecological Niche of Pinus densiflora Forests according to the Environmental Factors)

  • 서동진;오창영;우관수;이재천
    • 한국농림기상학회지
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    • 제15권3호
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    • pp.153-160
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    • 2013
  • 본 연구는 온대 남부, 중부, 북부지역의 소나무림을 대상으로 기상인자, 생육인자에 대해 생태적 지위폭(ecological niche breadth)을 분석하였으며, 향후 기후 변화에 따른 소나무림 분포에 미치는 환경 인자를 규명하기 위해 수행하였다. 2010년 9월부터 10월까지 강릉, 정선, 평창, 함양, 봉황, 영양, 울진, 의성 보성 9개 지역에 $20{\times}20m$의 방형구를 설치하여 수고, 흉고 직경, 지하고, 수관폭, 흉고단면적을 생육인자로 이용하였으며, 기상인자는 최저기온, 평균기온, 최고기온, 습도, 강수량을 조사지역에서 가장 가까운 관측소의 측정값을 이용하였다. 5가지 기상인자에 대한 생태적 지위폭은 습도를 제외한 기상인자에서 생태적 지위폭이 낮게 나타났으며, 기상변화에 따른 소나무의 분포역이 한정될 가능성이 높아지는 것으로 해석할 수 있다. 또한 강수량과 기온변화가 소나무림의 분포에 더 큰 영향을 주는 것으로 판단되며, 특히 최고기온의 경우 대부분의 조사지역에서 0.4이하의 낮은 생태적 지위폭을 보였다. 하지만 5가지 생육인자에 대한 생태적 지위폭은 모든 조사지역에서 높게 나타났으며, 이는 소나무가 환경변화에 적응하여 분포역이 넓다는 것을 의미하는 것으로 기상인자와는 상반되는 결과를 보였다. 이러한 결과의 원인은 생육인자의 경우 과거 안정된 환경에 적응하여 지속적으로 생장하였기 때문에 생육 내성의 범위가 커 소나무의 생태적 지위폭이 넓게 나타났으며, 반대로 기상인자의 경우 지속적인 지구온난화의 결과로서 소나무가 생육하기 어려운 조건으로 변하기 때문으로 판단되며, 향후 기온상승으로 인한 소나무림의 분포지역의 감소가 지속적으로 이루어질 것으로 전망된다.

밤나무 경영 표준진단표의 개발 및 적용 (Application and Development of 'Chestnut Management Standard Diagnostic Table')

  • 전준헌;유병일;이정민;지동현;김연태;강길남
    • 한국산림과학회지
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    • 제101권4호
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    • pp.695-702
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    • 2012
  • 밤 재배 경영주가 스스로 현재의 경영 상태를 체크하여 어느 정도 수준에 위치해 있는지 파악하고 현재보다 상위의 목표를 설정하여 발전해 나갈 수 있도록 밤나무 경영 표준진단표를 개발하여 활용하고자 하였다. 표준진단표의 작성을 위해 밤 관련 연구자와 밤 주산단지의 선도농가를 전문가로 선정하여 2번의 자문회의를 거쳤으며, 밤 재배 경영기반, 경영 및 판매능력, 생산기술수준으로 구성되는 3개의 대분류 항목과 19개의 중분류 항목을 선정하였다. 작성된 표준진단표를 활용하여 대표적인 밤 주산단지인 청양, 공주, 부여, 순천의 4개 지역에서 총 212개 밤 재배 임가의 경영실태를 설문조사 하였고, 이 중 총 159개 임가의 설문지를 결과 분석에 사용하였다. 표준진단표의 총점은 각 평가 인자 항목의 점수를 합계하여 산출하였는데 전체 임가의 평균 점수는 68.0점으로 나타났다. 지역별로는 부여지역이 69.7점으로 가장 높았고, 순천지역이 61.8점으로 가장 낮게 나타났다. 총점이 높은 그룹일수록 ha당 생산량은 많아지는 것으로 나타났지만, 전체 생산량 중 특품 이상 비율이 증가하는 것과는 통계적으로 연관성이 없었다. 밤재배 경영기반과 경영 및 판매능력에서는 고령의 재배자가 많은 순천지역에서의 점수가 낮은 것으로 조사되었다. 생산기술수준에 대해 살펴보면 4개 지역 모두 70% 이상이 친환경재배를 하고 있어 병해충 방제시 항공 방제를 이용하고 있는 임가는 많지 않은 것으로 나타났다.

설악산 전나무림에 나타난 흙 패임과 둔덕에 관한 기초조사 (Initial Survey on Pit and Mound in Fir Forests in Soraksan Mountain)

  • 전상규;윤영일
    • 환경생물
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    • 제22권2호
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    • pp.287-294
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    • 2004
  • Pits and mounds created by windthrow have significant impacts on forest ecosystem. In order to establish initial data base, 80 pits and mounds were sampled and surveyed in 5 fir forests in Nae-Sorak Mountain. Characteristics and forms were surveyed and frequency of tree species appearance were surveyed as well. 4.9% of surveyed area (0.4 ha) was pits and mounds in El and E2 areas except old areas where survey was done by estimation. E3 area showed the highest proportion, 11.7% of 0.1 ha of sampling area.

GIS와 설문분석에 의한 강원대 학술림의 비목재생산기능 평가 (Evaluation of Non-Timber Forest Functions in the Research Forest of Kangwon National University Using GIS and Questionnaire Analysis)

  • 최상현;김진국;우종춘
    • Journal of Forest and Environmental Science
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    • 제29권1호
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    • pp.99-108
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    • 2013
  • This study was conducted to evaluate the non-timber forest functions of the Research Forest area of Kangwon National University. In this study, forest recreation function was investigated through survey method answered by forest management experts. The evaluation factors for forest recreation function were separated into external and internal factors. Each factor was classified into intermediate element and detailed element. Therefore in this study, the evaluation factors of forest recreation function were divided into two groups which are the potential of external factors and the suitability of internal factors. Potential of the external factors were divided into accessibility, location, landscape and induction factors while the suitability of internal factor was divided into stand structure, forest structure and human impact. The priority of the potential of external factors was in order that location, accessibility, induction factors and landscape. The most important factors for the location, accessibility, induction and landscape factors are based on regional characteristics.

생태계 서비스 가치평가를 위한 산림 유형 분류 방안 - 임상도와 토지피복지도 활용을 중심으로 - (A Study on the Forest Classification for Ecosystem Services Valuation - Focused on Forest Type Map and Landcover Map -)

  • 전성우;김재욱;정휘철
    • 한국환경복원기술학회지
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    • 제16권3호
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    • pp.31-39
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    • 2013
  • Some researcher started studies of natural capital from 1980's. But many researches are going along with the theme lately. Most assessment of ecosystem services are approaching a general assessment using a land-cover map. Therefore they have some problems such as overestimate, underestimate, and double counting, and so on. This study suggested a detailed typology for quantitative assessment about ecosystem services. It compared land-cover map and forest type map to select a based map and made criteria with reference to the literature and field survey. It subdivided a forest typology using ecological feature (natural forest, artifical forest), forest type (coniferous forest, mixed forest, hardwood forest) and age of stand in forest type map. Each forest type is widely distributed 21~40 ages of forests and biggest area is 21~40 ages of mixed forest in all forest typology. Further researches have to progress consistently assessment using detailed typology and function of forest ecosystem services.

AHP분석을 이용한 산림치유마을 대상지 평가기준 분석 (Analysis of Preference Criteria for a Forest Healing Village Using AHP Method)

  • 김성학;허윤서;서정원
    • 농촌계획
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    • 제21권1호
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    • pp.117-127
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    • 2015
  • This study evaluated properties and items for selecting on a forest healing village. In order to assign a weight value-between factors, this study was conducted the primary survey first and then the secondary survey for measuring the importance of items. Experts'surveys were conducted on 3 items on level 1, 9 items on level 2, 35 items on level 3 with use of AHP technique. In level 1, the main analysis result was that physical resource properties(0.387) indicated the highest importance. in level 2, healing resources of physical properties(0.402), community participation of human resource properties(0.425), and business competency in part of vision(-.438) showed the highest importance. The analysis result of 35 items on level 3 was that in physical resources properties, securing public land in the village(0.220), possessing recreation space(0.440) and resources available for link with healing(0.413) showed the highest importance. In part of human resources properties, the average age of residents(0.465), commitment to the promotion of the villagers(0.367) and support of local leaders(0.318) showed the highest importance. Adequacy of development plan(0.274), forest work experience-related(0.293), and building profit sharing system(0.282) were also evaluated to have a relatively high importance.

光陵의 學術硏究保存林에 關한 群集生態學的 硏究 (Synecological Study on the Natural Reserve Forest for Academic Research in Gwangneung, Korea)

  • Yim, Yang-Jai;Kum Soon Kim
    • The Korean Journal of Ecology
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    • 제8권3호
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    • pp.147-152
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    • 1985
  • The forest vegetation of natural reserve area (175ha) at north-eastern slope of Solibong (537m), Gwangneung, was studied by plant sociological method and two dimensional ordination technique. In the area dominated by Carpinus laxiflora, from the lower site to peak of Solibong, a zonal distribution of C. laxiflora-Quercus mongolic forest, C. laxiflora-C. cordata forest, C. laxiflora-Q. serrata forest, C. laxiflora forest and C. laxiflora-Rhododendron schlippenbachii forest were recognized by the plant sociological survey. It is seem that the optimal range of Carpinus laxiflora forest occur in mesic-warm site by two dimensiional ordination with thermal condition and soil moisture condition. The optimal range (over 100 in importance value) was the range of 76~89。C.month in warmth index and 18~45% in soil water content.

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Management Strategy of Sediment-Related Disasters for Adaptation to Climate Change

  • Chun, Kun-Woo;Kim, Suk-Woo;Lee, Youn-Tae
    • Journal of Forest and Environmental Science
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    • 제34권2호
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    • pp.192-195
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    • 2018
  • To establish a management strategy of sediment-related disasters for adaptation to climate change, it is necessary to 1) understand the specific details and problems about the present status, 2) systematize related technologies by using exact numerical values obtained from physically-based analysis, and 3) ensure the basic guidelines are applied to field elastically. To achieve these successfully, detailed guidelines are required by scientifically considering the utilization and impact of related technology on the field. Here, detailed guidelines should include 1) the development of a basic plan, 2) enhancement of relevant technical instructions, 3) establishment of survey and inspection methods, 4) procedure of erosion control works in urban living sphere, and 5) proactive countermeasures against sediment-related disaster caused by earthquakes.

지방자치단체 숲가꾸기 사업 수행역량에 관한 연구 (A study on performance capability of local government on the forest tending project)

  • 김명관;오도교;김세빈
    • 농업과학연구
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    • 제40권1호
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    • pp.1-11
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    • 2013
  • The study proposes to draw out the correlation on what kinds of influences local government personnel's performance capability affect the overall quality of the project, and to suggest institutional supplement policies. For the study, two analytical methods are conducted. First, a hypothesis per each factor was set by classifying the factors which affect the personnel's performance capability into organizational and individual factors. Second, a survey was conducted targeting the project management personnels and presented the result on the verification of the hypothesis through statistic techniques. As the result, it is considered that the quality of forest tending project is more affected by the individual factors than the organizational factor, thereby this study suggests the methods of reinforcement in project management personnel's performance capability.