지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
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Atmospheric ammonia is a very important constituent of the environment because it is the dominant alkaline gaseous species present in the atmosphere. Ammonia is known to affect ecosystems at relatively low concentration. In this study flux profiles of ammonia emitted from the cattle housing were evaluated using a dynamic flux chamber (DFC). We have developed the emission factor of NH3 from the cattle housing. Analysis of ammonia flux variation was made with respect to such variables as manure surface temperature, pH, and ammonium concentration. Ammonia flux has been measured up to summer in 2007 at calf and cattle housing. In the fall, average ammonia flux from calf and cattle housing was estimated as 1.406 (±0.947) and 1.534 (±0.956) mg m−2 min−1, respectively. In the winter, average ammonia flux was estimated 1.060 (±0.569) from the calf housing and 1.216 (±0.655) mg m−2 min−1 from the cattle housing. The correlation coefficient (R=0.732) between ammonia flux and manure surface ammonium concentration exhibited stronger relationship than manure surface pH and temperature. In the fall, ammonia emission factor from calf and cattle housing was estimated as 3.94 (±2.66) and 11.41 (±5.86) kg-NH3 animal−1 yr−1, respectively. In the winter, ammonia average flux was estimated as 2.89 (±1.59) from the calf housing and 6.51 (±3.67) kg-NH3 animal−1 yr−1 from the cattle housing.
목차
등록된 정보가 없습니다.
참고문헌 (26)
참고문헌 신청
/ 2003 / NAP : Air emission from animal feeding operations / The national academies press
Adams, P. J / 2001 / General circulation model assessment of direct radiative forcing by the sulphate-nitrate-ammonium-water inorganic aerosol system / Journal Geophys Resear
Aneja, V. P / 2000 / Characterization of atmospheric ammonia emissions from swine waste storage and treatment lagoons / Journal of Geophysical Research-Atmospheric 105 (11)
Aneja, V. P / 2001 / Measurement and modeling of ammonia emissions at waste treatment lagoon-atmospheric interface / Water Air and Soil Pollution 1 : 177 ~ 185
Baek, B. H / 2003 / Estimation of ammonia and hydrogen sulfide emissions from cattle feedlots in texas. An ASAE meeting presentation : 034111 ~
Adams, P. J / 2001 / General circulation model assessment of direct radiative forcing by the sulphate-nitrate-ammonium-water inorganic aerosol system / Journal Geophys Resear
Aneja, V. P / 2000 / Characterization of atmospheric ammonia emissions from swine waste storage and treatment lagoons / Journal of Geophysical Research-Atmospheric 105 (11)
Aneja, V. P / 2001 / Measurement and modeling of ammonia emissions at waste treatment lagoon-atmospheric interface / Water Air and Soil Pollution 1 : 177 ~ 185
Baek, B. H / 2003 / Estimation of ammonia and hydrogen sulfide emissions from cattle feedlots in texas. An ASAE meeting presentation : 034111 ~
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