家庭牧场草地模拟与生产管理决策研究

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1、中国农业科学院硕士学位论文家庭牧场草地模拟与生产管理决策研究姓名：段庆伟申请学位级别：硕士专业：生态学指导教师：辛晓平20060601AbstractGrasslandisthemainresourcesofanimalhusbandfyt．orthefamlersinInnerMogolia．Morethan90％grasslandsaredegraded．ThegrasslandcaIlnotcan了asmally1iVestocksasbefore，afldhowwecaniITlprovemeproductionofgras

2、slandandlivestocksystemisimpH0nalltf砸sustainabledevelopmentofgmss】andaIldbveslockhusbaIl吣111t11isstudy'GrassGroDecisionSupponSysteIns(DSS)wascalibratedusingdatasetsofXilin901gmssland，FiveplaIltspcciesparaII耐ersand9animalspeciesparameterssetshavebeensetupfortheGfassGroD

3、SS，andforbiddenpcriodwasaddedintoGrassGroasaIlimportantmallagementmodule．nelon鲫meseriesmodelingof如膨船c矗姚nms沁sta廿oⅡhasbeenanalyscd．T11eresultshowsgrasslaIldsimulaⅡonrcsunfitthegmund廿1lthdatawell，a11dthebiomassofmeL唧螂曲姚n5妇communityhasevidentrelationwiththeprecipi蜥on，andnu

4、ctua把sthrou曲meⅡTne．Defbrred伊azing舯tationgrazing，contilluousgrazingandsupplemcntqualityhavealsobeensimulatedusingnlecalibratedGrassGmmodel，alldgrazing埘alhasbeenconductedin2005tocalibratedtheanimalmodukofGmssGm．Atypicalhouseholdpa咖resimul鲥0nhasb∞nrIlade，andthesi删1ationgi

5、vessOfnesuggesnonforthepasmreproducdon．Theresunshowsthatspringdef删grazingcanimprovetlleproponionofdominaIltspecies(e．g．上彤tm淞血加P邶妇aIld脚口g朋耐括)oftIlecommunityaIld盘qreasetheproponionofC跆括fDge棚叼“4r，口础口．Rotationalgrazingincrcasestllespringbiomass，butcannot证creaset11etotalbio

6、massofthegrowthseasOn．Whencontinuousgrazing，highqualitysupplementincr鼬sememeanⅡveweightofewesinJune，aIldkeepliVestocksingoodbodycondin叩．F0rtllehouseholdpaslure，tllestockingr如of0．7ewes，lla，s研ngdefefr酣盯azingfmm5Aprt025Juneor劬m15Aprto25JuneandrnjddlesupplemelltqIlalityisr

7、easonablefor血eeconomicsandenvimnrr玲nt．Keyword：GrassGm，Decisionsupportsysterns(Dss)，householdpasture，grazingrnanage眦ntXiIingoltypicalgrassl粕dII．独创性声明本入声稠掰呈交的论文是我夺入在导筛指导下进行的研究工作及取得静研究成果。尽我所知，除了文中特别加以标泣和致谢的地方外，论文中不包含其他人已经发表或撰写过的研究成果，也不包含为获得中嗣农业科学院或其它教育机构的学位或诞书瑟使蜀过的耪糕。与我一同

8、工彳謇的同志对本研究所做的任搿贡献均已在论文中俸了明确的说明并表示了谢意。研究生签名：罩襞庑伟时间：抽诉苦月bEj关于论文使用授权的声明本人宪全了解中圆农业科学院有关保留、使用学位论文的规定，即：中国农业科学浣有投保留送交论文鹃笺印件