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1、中國(guó)農(nóng)業(yè)氣象(ChineseJournalofAgrometeorology)2015鉦doi:10.3969/j.issn.1000—6362.2015.03.003王銳,李亞飛,張麗娟,等.土壤濕度驅(qū)動(dòng)WOFOST模型及其適應(yīng)性[J].中國(guó)農(nóng)業(yè)氣象,2015,36(3):263—271土壤濕度驅(qū)動(dòng)WOFOST模型及其適應(yīng)性王銳,李亞飛,張麗娟h,王建林。,王志偉(1.黑龍江省普通高等學(xué)校地理環(huán)境遙感監(jiān)測(cè)重點(diǎn)實(shí)驗(yàn)室/哈爾濱師范大學(xué),哈爾濱150025;2.地表過程與資源生態(tài)國(guó)家重點(diǎn)實(shí)驗(yàn)室/
2、E京師范大學(xué),北京100875;3.國(guó)家氣象中心,北京100081;
3、4.山西省氣候中心,太原030002)摘要:WOFOST作物生長(zhǎng)模型是以Et降水量表征降水輸入?yún)?shù),通過推算土壤相對(duì)濕度實(shí)現(xiàn)作物生長(zhǎng)模擬。由于日降水量隨機(jī)性較大,很難通過控制日降水量實(shí)現(xiàn)不同土壤干旱等級(jí)情景設(shè)置,限制了WOFOST作物生長(zhǎng)模型在不同水分脅迫下對(duì)作物生長(zhǎng)的模擬,也影響了模擬試驗(yàn)的精度。本文提出以土壤相對(duì)濕度直接驅(qū)動(dòng)WOFOST作物生長(zhǎng)模型,并以CompaqVisualFortran6.5為開發(fā)平臺(tái),采用Fortran語言對(duì)WOFOST作物生長(zhǎng)模型的源代碼進(jìn)行修改,將驅(qū)動(dòng)模塊中的13降水量文件替換為土壤相對(duì)濕度驅(qū)動(dòng)文件。以2013年山東省夏津農(nóng)業(yè)氣
4、象試驗(yàn)站玉米出苗一拔節(jié)期和抽雄一成熟期水分脅迫和整個(gè)生育期自然降水處理(對(duì)照)的試驗(yàn)數(shù)據(jù)為例,對(duì)修改后的WOFOST作物生長(zhǎng)模型進(jìn)行了模擬試驗(yàn)。結(jié)果顯示,采用修訂后的模型輸出的實(shí)測(cè)鮮葉干重、鮮莖干重、營(yíng)養(yǎng)器官干重、地上物質(zhì)總重和葉面積指數(shù)等生物量指標(biāo)均較原模型輸出結(jié)果,不僅精度明顯提高,而且,由于土壤濕度變化較平穩(wěn),較容易地實(shí)現(xiàn)了不同水分脅迫情景設(shè)置,進(jìn)而實(shí)現(xiàn)不同土壤干旱等級(jí)條件下玉米生長(zhǎng)的模擬,為分析不同程度干旱對(duì)玉米生長(zhǎng)的影響及確定其生長(zhǎng)發(fā)育指標(biāo)提供了便利條件。關(guān)鍵詞:土壤濕度驅(qū)動(dòng);降水量驅(qū)動(dòng);WOFOST模型;驅(qū)動(dòng)文件修改WoFoSTModelBased
5、onSoilMoistureDrivenandItsAdaptabilityWANGRui,LIYa-fei,ZHANGLi-juan,WANGJian-lin,WANGZhi-wei(1.KeyLaboratoryofRemoteSensingMonitoringofGeographicEnvironment,CollegeofHeilongjiangProvince/HarbinNormalUniversity,Harbin150025,China;2.StateKeyLaboratoryofEarthSurfaceProcessesandResource
6、Ecology/BeijingNormalUniversity,Beijing100875;3.NationalMeteorologicalCenter,Beijing100081;4.ClimateCenterinShanxiProvince,Taiyuan030002)Abstract:ThecropgrowthmodelofWOFOSTisusedtosimulatecropgrowthbyestimationofsoilrelativehumiditybasedondailyprecipitation.Itisdificulttosetdifferen
7、tscenariosofsoildroughtlevelsbychangingdailyprecipitation,becauseoftherandomnessofdailyprecipitation.Thisweaknessimposedrestrictionsonthesimulationofcropgrowthunderdifferentwaterstress,andalsohadbadeffectsontheaccuracyofthesimulation.Inthecurrentstudy,arevisedWOFOSTcropgrowthmodeldi
8、rectlybasedonsoilrelativehumiditywasdeveloped.TheCompaqVisualFortran6.5wasappliedasthedevelopmentplatform,andthesourcecodeofWOFOSTmodelwasmodifiedbyFortranlanguage,whichreplacingthedrivingfileofdailyprecipitationwithsoilrelativehumidity.TherevisedWOFOSTcropgrowthmodelwasusedtosimula
9、tecorngrowthunderth