農(nóng)牧交錯帶氣候資源變異及作物結(jié)構(gòu)調(diào)整分析——以武川縣為例.pdf

1、中國農(nóng)業(yè)大學(xué)碩士學(xué)位論文農(nóng)牧交錯帶氣候資源變異及作物結(jié)構(gòu)調(diào)整分析——以武川縣為例姓名：武艷萍申請學(xué)位級別：碩士專業(yè)：氣象學(xué)指導(dǎo)教師：潘學(xué)標(biāo)20040601AbstractBasedontheclimaticdatafrom1961to2003inWuct；uanCountyandthefieldexperimentsof16crops，potatosowingdensityandseasonduring2001and2003，thewa

2、tercomsumption，yield，qualityandenergyofthecropswereanaiysiedCombinedwiththefeedandenergycomsumptionoflivestocksthelinearprogrammingmodelofcroppingstructureadjustmentW&SestablishedTheresultsare：(1)Comparedwiththatin1960s，

3、thetemperatureduringtherecent10yearsincreased11。CTheprecipitationdidnotsignificantlychangeThesunlighttimeincreased805hoursThesechangeshadsomeextentimpactsoncropproductionandenhancedwatershortage【2)Thecropsofpeagrassmaize

4、，oilsunflowernakedoat，benne，waterconsumedabout250mmHowevehtheblacknakedoatandfilmcoveredmaizeusedlesswaterAmongthecrops，oilsunflowercontainedhighestoilPotatoandcolehadhighestproteinPotatoandmaizecontainedhighestcarbohydr

5、ates，Theorderoftotalenergyoutputwasgrain，grassmaize，oilsunflowerandcole(3)PotatoWasthemostimportantcropinWchuanCountyTheyieldWasaffectedbythedensityThehighestyieldcouldbeobtainedatasowingdateofMay21，andthedensity45000pla

6、nffhm‘(4)Basedontheintegratedparameters，thepropercroppingstructureinWchuanCountyshouldbe666％ofgraincrops68％oilcropsand266％foragecropsThetotalannumnetincomewouldbe352，372，000yuan，increasingby5，610，000yuancomparedwiththepr