• 제목/요약/키워드: Agricultural Ecosystem

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토지피복 지도를 이용한 생태계 서비스 가치 변화 분석 (Analysis of Ecosystem Service Value Change Using a Land Cover Map)

  • 박미정;전정배;최진아;김은자;임창수
    • 한국지역사회생활과학회지
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    • 제27권spc호
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    • pp.681-688
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    • 2016
  • This study examined the effective uses of an ecosystem service value assessment in the fields of rural planning and development through archiving and reviewing/analyzing existing concepts, evaluation methods and prior examples of Ecosystem services. Based on land cover analysis, this study evaluated the usability changes in the ecosystem service value for a period spanning 1975 to 2000. The results from the countrywide data survey (with an exception of Jeju island) showed a 33.15% decrease in ESV by 2000. The total ESV represented 5,385 million USD in 1975, and 3,600 million USD in 2000 of the study area. In addition, the ecosystem service value with a scale of metro cities and provinces was also examined. The ESV of most regions decreased by 2000, but Daejeon and Kyeongnam, and Kyeongbuk provinces increased. The trends of year to year changes in the ESV were very diverse throughout the country. Jeonnam showed the smallest decrease, 747 million USD, which is 59% of the ESV in 1975. Nevertheless, the despite the regional differences in available natural resources, the natural resource assets value is ultimately determined by rural development policies and regional economic attributes. Therefore, an ecosystem service must be considered as an important criterion for rural planning and development policy.

Taiwan Agricultural Ecosystem Plant Investigation Methodology for Evaluating Agricultural Ecosystem Services

  • Tsai, Jenn-Kuo;Chen, Chi-Ling
    • Proceedings of the National Institute of Ecology of the Republic of Korea
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    • 제3권1호
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    • pp.7-12
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    • 2022
  • Farming practices that balance environmental friendliness with biodiversity are increasingly valuable. Wild plants on farmlands compete for nutrients with crops and create a crucial microhabitat and resources for animals such as natural enemies. Investigating farmlands and their surrounding plants with limited human and material resources has become an essential aspect of evaluating the agricultural ecosystem services. This study investigated plants in six agricultural long-term ecological research sites in Taiwan from 2017 to 2020 to determine the ideal season for investigation. Cluster analysis was performed to group habitats with similar plant composition, and the species-area curves of the clusters in each season were created. The results indicated that the agricultural ecosystem could be divided into farmlands, banks, orchards, and tea gardens. The habitats were divided into farmland, bank, Chia-Yi orchard, Gu-Keng orchard, and tea garden clusters. Ground plant cover can be investigated all year with at least 18 quadrats. However, if human and material resources are limited, 10 quadrats should be the minimum for farmlands in autumn and for the other microhabitats in spring. The minimum number of quadrats is 10 for banks, 17 for orchards, and 9 for tea gardens.

농촌경관 생태계서비스 가치를 고려한 관리지표 개발 (Development of Rural Ecological Landscape Management Indicator considering Ecosystem Service Value)

  • 박미정;장도담;전정배;최진아;임창수;김은자
    • 농촌계획
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    • 제23권4호
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    • pp.127-141
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    • 2017
  • The interest on rural ecological landscape has recently grown on the part of policy makers for rural development. While considerable efforts and resources have been invested to preserve and utilize rural landscape, we still lack a systematic means to quantify and evaluate ecosystem service value of the rural landscape and management status. So this study suggests rural ecological landscape management indicator considering ecosystem service value. It consists of 28 criteria and 107 subcategories, which can be applied to rural village. And We have applied ecosystem service value assessment and resident's management status on three villages, Moondang village, Yonggye village, and Sesim village.

농촌지역 토지이용에 따른 생물다양성 기능 평가 (The Evaluation of Biodiversity Functions According to Land Use in Rural Areas)

  • 손진관;공민재;박민정;임류갑;강태경;김광호;김창현
    • 농촌계획
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    • 제27권2호
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    • pp.49-58
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    • 2021
  • Rural and agricultural landscapes are important forms of land use in maintaining biodiversity. In addition humans are provided with various public functions from ecosystems and agricultural ecosystems. But the creation of a facility horticultural complex can be a space that can undermine the public interest function of the agricultural ecosystem. Therefore, this study aims to quantify the function of ecosystem services that land use changes affect biodiversity in Korea's rice paddy fields. The area subject to the study was selected as the largest agricultural complex in Korea due to rice paddy fields and land use changes, and field agriculture was also carried out simultaneously. The survey was conducted only in the fields of vegetation, insects, amphibians, and birds, four areas of biodiversity that are believed to have a high impact on changes in land use in agricultural landscapes. The valuation of ecosystem services in four areas of biodiversity derived from this study was evaluated as non-market value. As a result of quantitative evaluation, about 25 species of vegetation were reduced due to changes in land use. The diversity of about 40 species of aquatic insects that inhabit rice paddies among insects has disappeared due to the creation of a horticultural complex. Birds and amphibian reptiles were also found to have decreased diversity and populations. This research is expected to be used in various ways to develop policies to enhance ecosystem service functions.

새만금 지역의 생태계서비스 평가와 증진 방안 (Assessment and Enhancement of Ecosystem Services of Saemangeum Area)

  • 이승준;최지원;오충현
    • 한국환경생태학회지
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    • 제36권6호
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    • pp.684-692
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    • 2022
  • 본 연구는 새만금 농생명용지와 주변 지역의 간척 전후 생태계서비스를 평가하고 증진방안을 마련하기 위해 수행하였다. 새만금 지역의 생태계서비스 기능은 토지 유형에 따라 다르게 나타났다. 간척 전 새만금은 공급, 조절, 문화, 지지서비스 기능이 모두 높았으나 간척 후에는 공급, 조절, 지지서비스 기능이 하락했다. 따라서 새만금 농생명 용지의 생태계서비스를 증진하려면 논 습지, 저수지 등의 반(半)자연생태계가 가지는 공급, 조절, 지지서비스를 강화하는 것이 필요하다. 현재 남아 있는 산림, 도서 지역 등의 자연생태계와 광활한 농경지를 농촌관광 및 생태관광을 특화하고, 농업과 관련된 교육.연구 위주의 문화서비스 기능을 강화할 필요가 있다. 이를 위해 넓은 농경지와 농업 기반을 활용하여 농업생산, 농촌관광 등을 활성화하고 고령화가 진행되고 있는 지역에 대한 정부의 지원이 필요하다.

갈색여치(Paratlanticus ussuriensis) 기주식물의 이화학적 특성변화와 먹이선호 구명 (The Physio-chemical Variation of the Host Plants and Feed Preference of the Ussur Brown Katydid, Paratlanticus ussuriensis (Orthoptera: Tettigoniidae))

  • 김명현;방혜선;정명표;나영은;한민수;강기경;이덕배
    • 한국환경농학회지
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    • 제28권4호
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    • pp.356-364
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    • 2009
  • In 2006 and 2007, there was a big outbreak of the Ussur Brown Katydid, Paratlanticus ussurriensis in the central part of Korea attacking some orchard trees. Until 2000, the katydid had not been regarded as an agricultural pest because they were distributed widely in Korea with low population density and their habitats were confined mainly to hillsides of forested areas. The fact that katydid attacked orchard trees with a higher population density seemed to be related to a change in feeding environment. And the shift of their habitats from oak woodlands to commercial orchards was thought to be related to the nutritional contents of their feed. In an attempt to understand these relationships, we conducted an ecological study of the affected areas. When the katydids changed their habitats in early May of 2008 and 2009, they shifted their host plants from oak trees to peach trees. The habitat shift was closely related to the nitrogen (N) content of the host plant leaves. When katydid moved to the hillside adjacent to orchard farm, N content of oak tree leaves decreased dramatically from 5.3% to 2.2%. At that time N content of peach tree leaves were higher than the 2.2% of oak leaves, showing 3.5~5.0%. This range of N content of peach tree leaves has been consistent until late June. And feed preference analysis carried out in the laboratory showed that katydid prefered peach tree leaves to peach fruit to oak tree leaves.

우분 분해에 대한 지렁이와 소똥구리의 상호작용 (Interaction between Earthworm and Dung Beetles on Cattle Dung Decomposition)

  • 방혜선;나영은;정명표;김명현;한민수;강기경;이덕배
    • 한국환경농학회지
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    • 제28권3호
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    • pp.238-242
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    • 2009
  • 우분의 분해에 있어 소똥구리와 지렁이를 함께 처리한 구에서 단독으로 소똥구리와 지렁이를 처리한 것 보다 분해율이 높았고, 지렁이와 소똥구리가 우분 분해 활동을 한 다음에 식물체를 파종했을 때 식물체 생장은 비료를 처리한 것과 동일한 효과가 인정되었다. 우분 함수율 78%까지는 소똥구리에 의해 분해 활동이 일어나며, 30%까지는 지렁이에 의해, 30% 이하에서는 두 동물군 모두 분해 활동을 하지 않았다. 소똥구리와 지렁이에 의해 운반된 우분은 초기 우분의 약 72%이며, 이중 10.2%는 소똥구리의 brood ball 형성에 이용되었다. 지렁이의 활동이 소똥구리의 brood ball 형성에 저해요인이 되지 않았고, 소똥구리의 활동 또한 지렁이의 생육에 영향을 미치지 않아 지렁이와 소똥구리는 우분에서 공간적 분포를 같이 하면서 먹이 경쟁을 하기 보다는 상호보완적인 작용을 하는 것으로 밝혀졌다.