대관령 지역의 농업환경 모니터링

Abstract

In order to provide the basic information on the agricultural environment in Daegwallyeong Highland, the characters of weather, water, and soil quality were investigated. The meteorological characteristics was monitored by automatic weather system (AWS) at 17 sites. The quality of water for samples were collected monthly at 24 sites depending on landuse style. Soil samples were collected from a forest, grassland, and the major vegetable cultivation areas such as potato, carrot, Chinese cabbage, onion, head lettuce, and welsh onion field. The weather showed the mountain climate, and the average yearly temperature is 6.4℃, the average temperature in January is -7.6℃ and the average temperature in July is 19.1℃, and the change of temperature on the districts of Daegwallyeong is severe. The yearly record of precipitation shows 1717.2 mm. The water quality of crop field was worse than forest or grassland in Daewallyeong highland. In 2005, annual T-N, T-P, SS distribution of Chinese cabbage field showed 7.4~11.3, 0.061~0.1, and 3.0~53.0 mg L -1 . The potato field showed 3.1~7.2 , 0.019~0.056 and 0.5~3.0 mg L -1 , respectively. Being compared of water quality between potato field and chinese cabbage field, it showed that the water quality of Chinese cabbage field was worse than potato field. On farming, the soil of crop cultivation showed pH 5.6 to 6.8, 18.0~42.4 g kg -1 of OM, 316~658 mg kg -1 of Avail. P2O5. The content of cations showed 0.41~0.88 cmolc kg -1 of Exch. K, 3.73~7.07 cmolc kg -1 of Exch. Ca and 1.17~1.90 cmolc kg -1 of Exch. Mg.