고랭지농업은 고도가 높은 지대에서 이루어지는 농업을 총칭하는데, 상대적으로 낮은 연평균 기온과 높은 강수량 등의 환경적 특성으로 인하여 독특한 농업 해충군을 가지고 있다. 강원도를 중심으로 재배되는 씨감자와 고랭지 배추 등이 대표적인 작목인데, 최근 엽채류, 아마란스 등 신소득 작물과 과수까지 그 범위가 점차 넓어지고 있다. 이러한 고랭지농업 해충은 기후변화에 매우 민감한데, 고령지농업연구소에서는 그에 대응하는 방제 전략을 개발, 연구하고 있다. 살충제 저항성 관리 및 돌발해충 방제, 기후 변화에 따른 해충군의 분포 확산, 개체군의 변화 등은 물론 고랭지농업만이 갖는 여러 유용 곤충, 미생물 자원에 대해서도 연구하고 있다. 이러한 연구 분야와 관련 성과물, 앞으로의 연구 방향에 대하여 논의하고자 한다.
In this research, we analyzed the relation between agricultural productivity and climatological data in highlands of Pyeongchang, Gangwon-do. Highland agricultural productivity index (HAPI) was developed using existing agriculture climate index and observation data set. Climate modeling system was constructed for simulations over complex mountainous terrain. Additionally a relation between the productivity and spatial HAPI was studied. The result shows a close corelation between temperature, important for vegetable growth, and vegetable productivity. Climate simulation was performed and the computed 10 years data were compared with data from regional meteorological office in Daegwallyeong. Using the result the HAPI was estimated for each grid (1 km) of the model domain.
본 연구는 송천 상류지역의 고랭지 농업으로 인한 토사유입이 저서성 대형무척추동물에 미치는 영향을 알아보기 위하여 2006년부터 2009년에 걸쳐 실시되었다. 조사결과, pH, DO, EC, TDS, TN, TP는 하류로 갈수록 증가하는 경향을 보였으며, ORP는 감소하는 것으로 확인되었다. 특히 SS와 TP는 농경지 구간인 St. 2~St. 4에서 급격한 증가를 보였으며, 파종과 수확시기에 변화가 컸다. 저서성 대형무척추동물의 구성은 총 5문 6강 11
Soil conservation management is necessary for sustainable agriculture, in highland areas, and cover crops are one of the best soil conservation methods for slopes. In this study, we evaluated the effects of alfalfa cultivation on maize production, as well as soil conservation and quality. There was an outstanding soil conservation effect with alfalfa cultivation in the fallow and maize growing seasons. In particular, alfalfa cultivation reduced soil loss by up to 98% compared with bare field. It also increased the activities of soil microorganisms and the supply of organic matter. Maize production with alfalfa cultivation showed no significant differences in yield. In conclusion, alfalfa is an advantageous perennial cover crop in highland agricultural slope areas, which can have positive effects on soil quality and conservation, as well as maize production.
Recently, the cultivated area is reduced, the ratio of upland-field in the total cultivated area is increasing relative appeared in 36.2% in 1990 from 43.7% in 2013. If upland-field can be applied well designed-infrastructure, good income crop production is possible, however, maintenance of infrastructure and a significant portion of the upland-field is maintained under insufficient infrastructure. While imports of agricultural products expanded since the 2000s in progress, looking at the self-sufficiency of upland-field crops, it is reduced to from 90% to 42% for the pepper, it is from 90% to 74% for the garlic, cereals is reduced from 42% by 26%. As a result of these conditions, the competitiveness of farmers has weakened, the risk to meet the challenges of this area of production and supply reduction increased. This study was the first to conduct a basic evaluation index, data analysis and evaluation of indicators to diagnose the agricultural production capacity of the upland field. 12 kinds classified index of producing conditions from the natural environment and eight factors for the cultivation and production capabilities have developed for the assessment of productivity of upland-field (especially Kimchi cabbage). Through this regional imbalance was found, based on the production capabilities conditions are good in Haenam, Gangneung, Pyeongchang. 3 Regions have been low and the lowest Youngwol to 0.8992. Climate(Cultivation conditions) indicators of Mungyeong region is the highest, relatively low areas were in Taebaek. In particular, it is determined to be preferred that the area required for the enhancing the production environment based on providing the convenience for the producing and maintenance of the first production area. It is necessary Increasing part of mechanization, agro-industrial competitiveness through aggressive management plans for facilities as required in the process of post-harvest storage, processing, distribution line can be improved.
본 연구에서는 위성영상 자료(1989~2003년)를 이용하여 태백산지 고랭지 농업지역의 토지피복을 분석하고, 기후변화가 고랭지 농업지역의 토지피복에 미친 영향을 파악하였다. 시기별 토지피복을 분석한 결과 1989년에서 2003년 사이에 태백산지 지역의 토지피복 변화는 다음과 같다. 임야의 면적이 감소하였고, 농경지와 시가지 지역의 면적이 증가하였다. 기후변화가 고랭지 농업지역의 변화에 미치는 영향을 파악하기 위하여 연구지역에 속하는 관측지점인 대관령의 기후자료를 분석하였다. 그 결과 연평균기온은 꾸준히 상승하고 있으며, 관측 초기인 1970년대의 평균값은 6.4℃였고, 2000년대의 평균값은 7.3℃로 약 0.9℃ 정도 상승하였다. 대관령의 연 강수량은 1980년대 중반 이후에 꾸준히 증가하였으며, 연평균 호우일수도 꾸준히 증가하는 경향이다.