시설재배지의 재배방법 및 입지적 조건이 지하수 NO3-N 함량에 미치는 영향
Effects of Farming Practice and NO3-N Contents of Groundwater with Different Locations under Intensive Greenhouse Area
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초록
농업활동 및 지하수의 입지적 조건이 시설재배지 지하수의 NO3-N함량에 미치는 영향을 알아보고자 영남지역 10개시군의 주요 시설재배단지에서 지하수 1370 지점의 NO3-N함량을 조사하고, 재배조건으로서 시설재배지의 경작년수, 퇴비시용량, 제염방법 및 입지적 조건으로서 지하수깊이, 점토함량, 배수등급 등을 조사하였다. 조사된 지점 중 천층지하수의 19.7%, 암반지하수의 1.3%가 우리나라 음용수 수질기준인 10 mg/ℓ를 초과하였고, 농업용수 수질기준인 20 mg/ℓ를 초과하는 지점은 천층수 6.3%, 암반수 0.4%로 나타났다. 지하수 NO3-N함량과 가장 상관이 높은 것은 점토함량 및 지하수깊이로 1% 수준에서 유의성이 인정되었다(점토함량 r=-0.241**, 지하수깊이 r=-0.228**). 재배조건에 따라서는 경작년수와 5%수준에서 유의성이 인정되었으나(경작년수 r=0.104*), 퇴비시용량 등과는 상관관계가 인정되지 않아 재배조건과 같은 농업활동보다는 토성과 깊이 등의 입지적 조건이 지하수 NO3-N함량에 더 영향을 미치는 것으로 나타났다. 또한 천층수의 NO3-N과 암반수의 NO3-N 함량 사이의 상관을 조사한 결과 양자 사이에는 고도의 정(正)의 상관(r=0.532**)이 인정되어 천층수의 수질이 암반수 NO3-N함량에 영향을 미침을 알 수 있었다.
Abstract
To investigate effects of farming practice and NO3-N contents of groundwater in intensive horticultural greenhouse area of Yeongnam province, the groundwater samples from 1,370 sites were collected and analyzed. In addition, cultivation year, crops, desalinization methods, amounts of manure application, tube well depth and soil texture with clay contents were observed. Of the investigated sites, 19.7% of shallow groundwater and 1.3% of confined groundwater were exceeded over 10 mg/ℓ as the NO3-N drinking limit value, respectively. NO3-N concentration in groundwater was highly significantly correlative with clay content (r=-0.241**), well depth (r=-0.228**) and cultivation duration (r=0.104*), respectively. In case of desalting crop method being executed for desalinization of greenhouse soil, the NO3-N value of groundwater was lower than any other desalinization method. The fact that NO3-N contents of confined groundwater was affected by shallow groundwater was clarified by that NO3-N contents in shallow were significantly correlative with the confined groundwater (r=0.532**).
참고문헌 (23)
- "Underground Water Acts." (1995), Ministri of Construction and Transportation.
- "A status of agricultural water quality and improvable countermeasure in Korea.", 15(4), pp.506~519 (1996)
- "The cause of the nitrate contamination of groundwater in rural county", pp.53~61 (1975)
- "Nitrate in groundwaters of intensive agricultural areas in coastal Northeastern Australia. Agriculture", 1941, pp.1~10 (2002)
- "Survey on groundwater quality under plastic film house cultivation areas in southern part of Gyeonggi province.", 29(4), pp.389~395 (1996)
- "Water quality of streams and agricultural wells related to different agricultural practices in small catchments of Han river Basin.", 16(2), pp.199~205 (1997)
- "Analysis of groundwater used for agriculture in Kyonggi province.", 18(2), pp.148~153 (1999)
- "Behavior of NO3-N in soil and groundwater quality", pp.281~297 (1993)
- "Nitrate levels in shallow groundwater of upstate New York. USA.", 16, pp.307~311 (1996)
- "Nitrates in groundwater resulting from manure applications in irrigated croplands. EPA. 600", 2-82-079. U.S. Environ. Protection Agency, 1982, ~
- "Nitrate leaching in temperate agroecosystem factors and mitigation strategies.", 46, pp.237~256 (2002)
- "Nitrogen monitoring in groundwater in sandy regions of the Netherlands.", 102 S1, pp.479~485 (1998)
- "Nitrate pollution of groundwater in western europe. Agriculture"
- "Rural development administration." (1996), Cultural practice of cucurbitaceae plant
- "Losses of chemical components by infiltration water during the rice cultivation at silt loam paddy soil.", 17(3), pp.268~273 (1998)
- "Using cereal grain winter cover crops to reduce groundwater nitrate contamination in the mid-atlantic coastal plain.", 53, pp.230~240 (1998)
- "Nitrogen additions and losses to drainage in orchard-type irrigation lysimeter. Can. J. Soil Sci. 70", pp.11~19 (1990)
- "Leaching of nitrogen in agriculture. In nitrogen losses and surface run-off."
- "A lysimeter study of impact of cow urine dairy shed effluent and nitrogen fertilizer on drainage water quality.", 37, pp.357~369 (1999)
- "Leaching of nitrate from soils receiving organic or inorganic fertilizers continuously 135 years.", pp.334~345 (1989), Academic press
- "Nitrate dynamics shallow groundwater and the potential for transport to off-site water bodies.", 147, pp.183~202
- "Mechanism of nitrate transfer from soil to stream in an agricultural watershed of french rittany.", 133, pp.161~183 (2002)
- "Mechanism of nitrate transfer from soil to stream in an agricultural watershed of french rittany.", 133, pp.161~183 (2002)