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Kafe 바로가기주관연구기관 | 국립농업과학원 National Institute of Agricultural Sciences |
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연구책임자 | 김명숙 |
참여연구자 | 이은진 , 이태구 , 정하일 , 채미진 , 허승오 , 황선아 , 장용선 , 한경화 , 조희래 , 옥정훈 , 서미진 , 김동진 , 이협성 , 김순선 , 최금식 , 김민경 , 권순익 , 김진호 , 엽소진 , 최순군 , 이윤혜 , 박성진 , 심재홍 , 김성헌 |
보고서유형 | 최종보고서 |
발행국가 | 대한민국 |
언어 | 한국어 |
발행년월 | 2021-02 |
과제시작연도 | 2020 |
주관부처 | 농촌진흥청 Rural Development Administration(RDA) |
등록번호 | TRKO202100009605 |
과제고유번호 | 1395063738 |
사업명 | 농업정책지원기술개발사업(R&D) |
DB 구축일자 | 2021-09-18 |
키워드 | 토양화학성.토양물리성.취약농경지.농업용수.비료사용량.Soil chemical properties.Soil physical properties.Agricultural land near pilot.Agricultural water.Fertilizer application rate. |
전국 농업환경자원(농경지, 수질, 비료사용량) 조사자료로서, 농경지 화학성 자료로 밭 1,760점, 과수 1,470점, 논 2,110점, 시설 1,377점, 물리성 자료를 밭 320점, 과수 320점, 논 320점, 시설 320점, 농업 용수 수질 분석 자료로 매년 하천수 300지점, 지하수 200지점, 공단인근 농경지 자료로 매년 600점을, 비료사 용량 자료로 노지채소 917농가, 과수 908농가., 벼 914 농가, 시설채소 900 농가를 조사·분석·평가 및 흙토람에 DB화 하였고, 농업환경조사자료의 사회 경제적 가치로서, ?
전국 농업환경자원(농경지, 수질, 비료사용량) 조사자료로서, 농경지 화학성 자료로 밭 1,760점, 과수 1,470점, 논 2,110점, 시설 1,377점, 물리성 자료를 밭 320점, 과수 320점, 논 320점, 시설 320점, 농업 용수 수질 분석 자료로 매년 하천수 300지점, 지하수 200지점, 공단인근 농경지 자료로 매년 600점을, 비료사 용량 자료로 노지채소 917농가, 과수 908농가., 벼 914 농가, 시설채소 900 농가를 조사·분석·평가 및 흙토람에 DB화 하였고, 농업환경조사자료의 사회 경제적 가치로서, ??을 분석하였으며, 정점 조사지점의 대한 정보의 이력관리를 편리하게 할 수 있도록 현장에서 정보를 검색할 수 있는 시스템을 구축하였다.
(출처 : 요약서 8p)
□ Purpose&Contents
Monitoring of the dynamic changes of chemical and physical properties, in agricultural land is very important for agricultural sustainability. Chemical properties of agricultural soils in Korea have been investigated at four-year interval in the order of paddy, plastic film hou
□ Purpose&Contents
Monitoring of the dynamic changes of chemical and physical properties, in agricultural land is very important for agricultural sustainability. Chemical properties of agricultural soils in Korea have been investigated at four-year interval in the order of paddy, plastic film house, upland, and orchard soils since 1999.
These project was conducted from 2017 to 2020. Soil samples were taken from the upland , paddy soil, paddy soil, and plastic film house soil. Soil chemical properties such as pH, electrical conductivity (EC), organic matter (OM), available phosphate (Av.P2O5), and exchangeable (Ex.) cations (K, Ca, and Mg) and soil heavy metals were analyzed. In order to monitor the physical properties, In each year soil samples from 320-331 sites were collected. Changes of Agricultural Environment from 2017 to 2020 which was launched based on the concept of a rearing act of environmental-friendly sustainable agriculture.
The objective of this study was to provide the fundamental data to establish a policy for sustainable production of agricultural safety products through investigating the waterquality of agricultural irrigation water. 1,300 water samples from both surface and ground water at 500 different sites (3 times a year for surface water and 2 times a year for ground water) were collected every year. Agricultural irrigation water quality was analyzed by Korean standard methods for water quality analyses.
The survey on the use of fertilizer was conducted in the order of field crops, fruit trees, rice and food crops, and facility crops.
The survey farmers selected 1 to 5 crops by province so that they were 50 or more farmers by crop. By year, we surveyed field vegetables in 2017, fruit trees in 2018, rice and food crops in 2019, and facility farmers in 2020. The survey method was to construct a DB for processing fertilizer use survey data, and the principle of the interview was to be conducted by the cooperative task manager of each provincial agricultural research and extension services.
Also, the project to analyze the environmental benefits of monitoring project on agri-environmental quality in Korea is to present the feasibility of project. The contents of the project are as follows; the economic benefits of DB for monitoring project on agri-environmental quality, the effect of prescription for farmers and the economic effect of supporting agricultural policies in monitoring project on agri-environmental quality, environmental value analysis of changes in monitoring project on agri-environmental quality, effects of the national economic impacts of monitoring project on agri-environmental quality, and application of economic analysis information in the future
□ Results
Soil chemical properties such as pH, electrical conductivity (EC), organic matter (OM), available phosphate (Av. P2O5), and exchangeable (Ex.) cations (K, Ca, and Mg), available silicate(Av.SiO2) and soil heavy metals were analyzed. Chemical properties of upland, orchard, and plastic film house soils except Jeju were 6.4~6.6 for pH, 27∼38 g kg-1 for organic matter, 679∼1,053 mg kg-1 for available phosphate, 0.96∼1.74 cmolc kg-1 for exchangeable potassium, 7.6∼10.9 cmolc kg-1 for exchangeable calcium, and 2.1∼3.3 cmolc kg-1 for exchangeable magnesium. Chemical properties of paddy soils except Jeju were 6.0 for pH, 27 g kg-1 for organic matter, 142 mg kg-1 for available phosphate, 0.32 cmolc kg-1 for exchangeable potassium, 5.6 cmolc kg-1 for exchangeable calcium, and 174 mg kg-1 for available silicate. The order of magnitude of EC was plastic film house soil > upland soil > orchard and paddy soil, Av.P2O2 and Ex. cations, plastic film house soil > orchard soil > upland soil > paddy soil. Soil pH, OM, and Av.SiO2 have increased due to national agriculture policy as project for soil amentment supply.
And, heavy metal contents of agricultural land were below the threshold values for soil contamination described in Soil Environmental Conservation Act.
The survey on the soil heavy metal content in agricultural land near the industrial complex was conducted in Gyeonggi-do and Gangwon-do in 2013, and Chungcheongbuk-do and Chungcheongnam-do in 2014. Since 2015, it has been divided into four districts, and in 2017 and 2019, the industrial complexes in the southern part of the province were conducted for 15 industrial complexes in the north in 2018 and in 2020.
The content of heavy metals in agricultural lands near the industrial complexes was found to be below the standards of concern for soil pollution in most industrial complexes, but exceeded the standards for heavy metals in some industrial complexes. As a result of the detailed investigation, most of the industrial complexes were partially contaminated with 1~2 spots of agricultural land. It was found to be the Hambaek Agricultural Industrial Complex in Gangwon-do and the Haman Industrial Complex in Gyeongsangnam-do, where more than 10 spots were contaminated. Points that exceeded the heavy metal contamination standard were included in the agricultural product safety basic plan of the Ministry of Agriculture, Food and Rural Affairs, and notified to manage agricultural products contaminated with heavy metals.
The overall soil physical properties had been ameliorated in upland, but had no periodic effect in orchard, paddy, and plastic film house.
The average pH of the surface water from small watershed supplying agricultural irrigation was 7.6 and DO was around 9.5 mg/L which is lower than the criteria of agricultural water quality, 2 mg/L. The average concentrations of COD and T-P were appeared at 3.7 and 0.10 mg/L, respectively, which is showing suitable water quality for agricultural use. The average SS was around 7.1 mg/L which is much lower than the criteria of agricultural water quality, 100 mg/L. The average pH and NO3-N of the agricultural ground water were 7.0 and 6.45 mg/L, respectively. Their Cl- and SO42- concentrations were 26.8 and 22.5 mg/L, respectively. There is no big difference among investigated periods. The results from 2017 to 2020 showed highest concentration in NO3-N at cultivated plastic film houses following uplands and paddy fields indicating average NO3-N concentration in nation meets the criteria of ground water, 20 mg/L
The comparison of the recommended amount of fertilizer (recommendation amount of fertilizer prescription) and the amount of fertilizer used in the actual farm (sum of organic fertilizer and chemical fertilizer use) in the field vegetable growers showed that the actual amount of use was more than 14 kg per 10a than the recommended amount of nitrogen in the garlic and onion farmers. In the case of pears, peach, and sweet persimmons, the actual usage was less than the nitrogen reference recommended amount. The actual amount of rice was2.8 kg per 10a more than the recommended amount of nitrogen, and 9.0 kg more for potatoes. In cucumber cultivation under structure, the combined amount of chemical fertilizer and organic fertilizer was put in excess of 26.5 kg/10a of nitrogen, 18.4 of phosphate and 25.0 of potassium. In order to calculate the oversufficiency of the total nutrient demand, the nutrient content for all input materials such as chemical fertilizer, organic fertilizer and compost should be considered in the fertilizer use prescription according to the soil test.
The economic benefits of the fertilizer prescription were calculated to derive the value of monitoring project on agri-environmental quality, which resulted in an economic benefit of KRW 18,545 million. As a result of estimating the ratio of the cost/benefits by aggregating the total costs and benefits of the project, the project is economically viable with 1.34. The impact of domestic emissions of air pollutant ammonia on the annual average production of PM2.5 in Korea and the resulting cost of damage to health effects were calculated.
Reducing ammonia emissions reduced the cost of early death caused by fine dust by about KRW 5.3 billion won. The annual economic value of monitoring project on agri-environmental quality is estimated at KRW 1053.4 billion. Calculating the amount of willingness to pay for all farmers' monitoring project on agri-environmental quality, the total amount was KRW 188.6.4 billion won.
□ Expected Contribution
To monitor chemical and physical properties, fertilizer application of farmer, agricultural irrigation water was launched based on the concept of a rearing act of environmental-friendly sustainable agriculture
To provide the fundamental data to establish a policy for sustainable production of agricultural safety products through investigating the water quality of agricultural irrigation water.
(출처 : SUMMARY 12p)
과제명(ProjectTitle) : | - |
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연구책임자(Manager) : | - |
과제기간(DetailSeriesProject) : | - |
총연구비 (DetailSeriesProject) : | - |
키워드(keyword) : | - |
과제수행기간(LeadAgency) : | - |
연구목표(Goal) : | - |
연구내용(Abstract) : | - |
기대효과(Effect) : | - |
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