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
오류제보하기
The objective of this research was to experimentally test the effect of rice straw mats on the reduction of runoff, sediment discharge and turbidity under a laboratory scale. We used the small runoff plots of 1 m × 1 m × 0.65 m (L ×W× H) in size filled with loamy sand. Experimental treatments were bare (control), rice straw mat cover of straw mats＋PAM＋Gypsum (SPG), rice straw mats＋Chaff＋PAM＋Gypsum (SCPG) and rice straw mats＋Sawdust＋PAM＋Gypsum (SSPG); slope of 10 % or 20 %; and rainfall intensity of 30 mm/hr. Runoff volume and rate of covered plots were significantly lower than those of control plot. Average runoff rate of covered plots, slope of 10 % and 20 %, decreased 85.6 % and 72 % in respectively. Sediment reduction ratio was more than 99 %regardless of slope. The differences runoff and sediment discharge among different cover materials were not significant. It was also shown that even if runoff reduction by surface cover were low, sediment discharge reduction could be very significant and contribute to improve the water quality of streams in sloping agricultural regions. It was concluded that the use of straw mat and soil amendments (PAM and Gypsum) on sloping agricultural fields could reduce soil erosion and muddy runoff significantly and help improve the water quality and aquatic ecosystem in receiving waters. But mixing effect of PAM and Gypsum was minimal.
목차
등록된 정보가 없습니다.
참고문헌 (26)
참고문헌 신청
Bajwa, M. S. / 1989 / Effect of gypsum and sodic irrigation water on soil and crop yields in a rice-wheat rotation / Agric. Water Manage 16 : 53 ~ 61
Bjorneberg, D. L. / 2000 / Controlling sprinkler irrigation runoff, erosion,and phosphorus loss with straw and polyacrylamide / Transactions of the ASAE 43 (6) : 1545 ~ 1551
Choi, J. D. / 1997 / Effect of Rural Watershed Management on the Discharge of NPS Pollutants to Streams / Inst. of Rural Dev., Kangwon Nat’l Univ 1 (1) : 91 ~ 107
Choi, J. D. / 2000 / Monitoring Study on Groundwater Quality of anAlluvial Plane in the North Han River Basin / Journalof the KSWQ 16 (3) : 283 ~ 294
Deery, D. / 2002 / Effect of polyacrylamides and gypsum on turbidity of water / In Proceedings of the ASSSI Future Soils Conference : 52 ~ 53
Bjorneberg, D. L. / 2000 / Controlling sprinkler irrigation runoff, erosion,and phosphorus loss with straw and polyacrylamide / Transactions of the ASAE 43 (6) : 1545 ~ 1551
Choi, J. D. / 1997 / Effect of Rural Watershed Management on the Discharge of NPS Pollutants to Streams / Inst. of Rural Dev., Kangwon Nat’l Univ 1 (1) : 91 ~ 107
Choi, J. D. / 2000 / Monitoring Study on Groundwater Quality of anAlluvial Plane in the North Han River Basin / Journalof the KSWQ 16 (3) : 283 ~ 294
Deery, D. / 2002 / Effect of polyacrylamides and gypsum on turbidity of water / In Proceedings of the ASSSI Future Soils Conference : 52 ~ 53
이 논문의 저자 정보
최근 본 자료
댓글(0)
0