南水北调与水利科技
南水北調與水利科技
남수북조여수리과기
SOUTH-TO-NORTH WATER
2010年
1期
99-103
,共5页
灌溉用水定额%节水灌溉技术%节水效益%河北省
灌溉用水定額%節水灌溉技術%節水效益%河北省
관개용수정액%절수관개기술%절수효익%하북성
the norm of irrigation%water-saving irrigation technology%benefit of water-saving%Hebei province.
农业用水占总用水量的70%以上,农业用水对水资源的可持续利用具有巨大的影响.通过对河北省常用的工程节水措施进行分析,低压管道输水技术投资小、适应性强,是目前节水工程中采用较多的一种;渠道防渗投资小,适用于长距离调水的灌渠;微灌具有省水、省工、节能、增产等优点,但投资较大,适用于蔬菜、花卉、药材等产值高、收益好的经济作物;喷灌具有节水、水保、节地、节省劳动力、适应性强的特点,但投资较大,适用于大型农场、果园等经济类作物.通过对不同节水灌溉措施投资和经济效益分析,为节水灌溉工程设计提供科学依据.
農業用水佔總用水量的70%以上,農業用水對水資源的可持續利用具有巨大的影響.通過對河北省常用的工程節水措施進行分析,低壓管道輸水技術投資小、適應性彊,是目前節水工程中採用較多的一種;渠道防滲投資小,適用于長距離調水的灌渠;微灌具有省水、省工、節能、增產等優點,但投資較大,適用于蔬菜、花卉、藥材等產值高、收益好的經濟作物;噴灌具有節水、水保、節地、節省勞動力、適應性彊的特點,但投資較大,適用于大型農場、果園等經濟類作物.通過對不同節水灌溉措施投資和經濟效益分析,為節水灌溉工程設計提供科學依據.
농업용수점총용수량적70%이상,농업용수대수자원적가지속이용구유거대적영향.통과대하북성상용적공정절수조시진행분석,저압관도수수기술투자소、괄응성강,시목전절수공정중채용교다적일충;거도방삼투자소,괄용우장거리조수적관거;미관구유성수、성공、절능、증산등우점,단투자교대,괄용우소채、화훼、약재등산치고、수익호적경제작물;분관구유절수、수보、절지、절성노동력、괄응성강적특점,단투자교대,괄용우대형농장、과완등경제류작물.통과대불동절수관개조시투자화경제효익분석,위절수관개공정설계제공과학의거.
Occupying 70% of total water use, agricultural water use has the dominant influence on sustainable utilization of water resources. This article analyzes the popular water-saving engineering technology in Hebei province. The low-pressure piping technology is the most popular water-saving technology of irrigation because of its lower investment and good applicability; the channel seepage-preventing technology has lower investment and applies to long distance water delivery; the micro irrigation technology has the advantage of water-saving, energy saving, laborsaving and increasing production, and it is suitable for valuable crops such as vegetable, flower and herbs, but it needs large investment; the sprinkling irrigation has the advantage of water-saving, soil conservation, land-saving, laborsaving and wide applicability with higher investment, so this method is suitable for those economic crops on the large sized farms and orchards. The article submits the scientific bases for the design of water-saving engineering by analyzing the input and output of the different water-saving irrigation technologies.
