干旱地区农业研究
榦旱地區農業研究
간한지구농업연구
AGRICULTURAL RESEARCH IN THE ARID AREAS
2010年
2期
146-149
,共4页
闫侃%刘俊民%李继伟%刘占宝
閆侃%劉俊民%李繼偉%劉佔寶
염간%류준민%리계위%류점보
灌排系统%水盐平衡%排灌比
灌排繫統%水鹽平衡%排灌比
관배계통%수염평형%배관비
irrigation-drainage system%hydro-salinity balance%ratio of drainage to irrigation
灌溉是灌区农业生产持续发展的先决条件,排水则是决定灌区能否可持续发展的保证.本研究在全面考虑影响灌排系统健康发展的众多因素的基础上,以青铜峡灌区为例,从土壤盐碱化的防治及水资源合理利用角度,运用水盐平衡原理,判别灌区积、脱盐状态及排水效果,分析灌区灌排系统的合理性.分析结果表明青铜峡灌区灌排系统运行良好,对灌区排盐及盐碱化的防治起着积极的作用.同时也发现灌区存在着排灌比过大,排水能力过剩,排水系统不合理等问题.
灌溉是灌區農業生產持續髮展的先決條件,排水則是決定灌區能否可持續髮展的保證.本研究在全麵攷慮影響灌排繫統健康髮展的衆多因素的基礎上,以青銅峽灌區為例,從土壤鹽堿化的防治及水資源閤理利用角度,運用水鹽平衡原理,判彆灌區積、脫鹽狀態及排水效果,分析灌區灌排繫統的閤理性.分析結果錶明青銅峽灌區灌排繫統運行良好,對灌區排鹽及鹽堿化的防治起著積極的作用.同時也髮現灌區存在著排灌比過大,排水能力過剩,排水繫統不閤理等問題.
관개시관구농업생산지속발전적선결조건,배수칙시결정관구능부가지속발전적보증.본연구재전면고필영향관배계통건강발전적음다인소적기출상,이청동협관구위례,종토양염감화적방치급수자원합리이용각도,운용수염평형원리,판별관구적、탈염상태급배수효과,분석관구관배계통적합이성.분석결과표명청동협관구관배계통운행량호,대관구배염급염감화적방치기착적겁적작용.동시야발현관구존재착배관비과대,배수능력과잉,배수계통불합리등문제.
Irrigation is the precondition of agricultural production, and drainage is the guarantee that determines whether the irrigation area can keep a sustainable development. The paper lumps factors that have impact on the healthy development of irrigation and drainage system. Taking Qingtongxia Irrigation District for example, the paper views from the prevention of soil salinization and rational utilization of water resources, applies the theory of water-salt balance to judge the condition of the salification and desalination and the effect of drainage, and then analyses the rationality of irrigation and drainage system in the irrigation district. The results indicate that the drainage system in Qingtongxia Irrigation District runs well and plays a positive role to the disposal of soil salt. The paper also points out some problems, such as the excessive ratio of drainage to irrigation, drainage capacity surplus and the unreasonable drainage system.