紅壤旱地間作生態(tài)系統(tǒng)功能及調(diào)控研究.pdf

1、江西農(nóng)業(yè)大學(xué)碩士學(xué)位論文紅壤旱地間作生態(tài)系統(tǒng)功能及調(diào)控研究姓名：張明林申請學(xué)位級別：碩士專業(yè)：作物栽培學(xué)與耕作學(xué)指導(dǎo)教師：黃國勤2003.5.1AbstractInordertoestablishproperintercroppingecosystemsinuplandredsoil，firstly，aIlexperimenthasbeenmadeontheenvironmentalcharactersandbasicfunctiono

2、fintercroppingecosystems；secondlyanotherexperimenthasbeendonealsoonthemechanismofstalkmulching(oneofimportantecologicalregulationmeasure)Theseresultswereasfollows：1Intercroppingecosystemisbetterthanmonocultureecosystem(1

3、)Contrastingmaizeintercroppingecosystemswithmamemonocultureecosystems，theformerCanimprovelightconfigurationofcolonyandtheconditionofventilation，increasehumidityanddecreaseairtemperatureInaword，itCanbettertheenvironmentAs

4、aresult，thebasicfunctionsoftheintercroppingecosystemshavebeenstrengthenedMoreoverthecontentoforganic，totalnitrogen，availablenitrogen，totalpotassium，availablepotassiuminthesoilandtheecologicalefficiencyofmaize，supplemente

5、fficiencyofecosystems，valueefficiencyofecosystemshavebeenraised(2)Takingadvantageoftheosculationvaluemethod(oneofsynthesizedvaluememod)，wecandrawaconclusiononEFOV(osculationvalueofthefunctionsofecosystem)ofmaizeintercrop

6、pingSOybeanisO000，secondoneofmaizeintercroppingpeanutis1094，thirdoneofmaizeintercroppingmungbeanis1788，thelastoneofmaizemonocultureis29792StalkmulchingCanregulateintercroppingecosysteminuplandredsoiltogreatdegree(1)Stalk

7、mulchingcallincreasesoilporositydecreasesoilgravityimproveconditionofsoilventilation，andraisethecontentofsoilorganicandN，PKInaword，itCanimprovesoilphysicsandchemicalcharacterMoreoveritCanenhancethesoilwaterquantitypromot

8、emaize’S掣owth，increaseleafareaanddrymatteraccumulation，improveagriculturalcharacteristicsofmaizeandenhancemaizeyield(2)StalkmulchingCanincreaseonflowcaloricflux，decreasesoilcaloricfluxandlatentcaloricfluxAsaresult，airtem

9、peratureneargroundhavebeenenhanced；soiltemperature，humidityneargroundhavebeendeclined，andsoilwaterquantityhavebeenincreasedAllthesementionedabovearephysicsessenceofkeepingsoilmoistureandloweringgroundtemperatureDuringthe

10、earlystageofmaizegrowth，stalkmulchingcarlcontrolsoilmoistureevaporationeffectivelyandboostcroptranspirationSequentially’themoistureconsumptionhasbeentransformedfromphysicprocesstobiologicalprocess，thereby，thewaterefficie