南水北调与水利科技
南水北調與水利科技
남수북조여수리과기
SOUTH-TO-NORTH WATER
2013年
z2期
30-32
,共3页
降水量%降水特征%作物需水量%雨水利用%邢台市
降水量%降水特徵%作物需水量%雨水利用%邢檯市
강수량%강수특정%작물수수량%우수이용%형태시
precipitation%precipitation characteristics%crop water requirement%the use of rainwater%Xingtai City
在干旱半干旱地区,可进行调整农业结构,使农作物需水量与降水量适时同步,以充分利用雨水资源。通过对邢台市降雨特性分析,该区降水比较集中,汛期降水量占全年降水量的80%;通过对该区常规种植作物需水量分析,冬小麦-玉米一年两熟农业结构,少雨期正是小麦需水期,在平水年单位面积缺水量为368.4 mm。结合该区降水特性调整农业种植结构,在水资源相对丰富的地区,保证粮食作物的种植面积;在水资源匮乏的区域,种植棉花作物.使得降水季节与作物需水期相适应,从而达到充分利用雨水资源的目的。
在榦旱半榦旱地區,可進行調整農業結構,使農作物需水量與降水量適時同步,以充分利用雨水資源。通過對邢檯市降雨特性分析,該區降水比較集中,汛期降水量佔全年降水量的80%;通過對該區常規種植作物需水量分析,鼕小麥-玉米一年兩熟農業結構,少雨期正是小麥需水期,在平水年單位麵積缺水量為368.4 mm。結閤該區降水特性調整農業種植結構,在水資源相對豐富的地區,保證糧食作物的種植麵積;在水資源匱乏的區域,種植棉花作物.使得降水季節與作物需水期相適應,從而達到充分利用雨水資源的目的。
재간한반간한지구,가진행조정농업결구,사농작물수수량여강수량괄시동보,이충분이용우수자원。통과대형태시강우특성분석,해구강수비교집중,신기강수량점전년강수량적80%;통과대해구상규충식작물수수량분석,동소맥-옥미일년량숙농업결구,소우기정시소맥수수기,재평수년단위면적결수량위368.4 mm。결합해구강수특성조정농업충식결구,재수자원상대봉부적지구,보증양식작물적충식면적;재수자원궤핍적구역,충식면화작물.사득강수계절여작물수수기상괄응,종이체도충분이용우수자원적목적。
In the arid and semi-arid area, we can adjust the agricultural structure and make the crop water requirement and precipitation timing synchronizationinordertomakefulluseofwaterresources.ThroughtheanalysisofrainfallcharacteristicsinXingtaiCity,wefindthatthepre-cipitation of this area is relatively concentrated and precipitation in flood period accounted for 80% of the annual precipitation;through the analy-sisofthewaterrequirementofconventionalcrops,inthewinterwheat-corndoublecroppingagriculturalstructure,wefindthattheperiodofless rainfall is also the period during which wheat is badly need of rainfall water, and the water deficit in per unit area is 368. 4 mm in median water years.Combinedwiththeprecipitationcharacteristicsofthearea,weshouldadjustagriculturalplantingstructure.Inordertomakefulluseof rainwaterresources,weshouldensuretheplantingareaofgraincropintheareawherethewaterresourcesisrelativelyrich,andplantingcotton crops in the area where the water resources is scarce to make the raining season fits the crop water requirement period.