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1、江西省不同类型退化荒山生态系统植被恢复与重建措施第22卷第6期2002郭晓敏,牛德奎,刘苑秋,杜天真,肖舜祯,叶学华(江西农业大学林学院,南昌 330045)摘要:对江西省5种不同类型退化荒山生态系统进行综合治理,开展植被恢复与重建技术及理论研究。研究结果表明:优选的植物组合及合理的配置并辅以工程措施是快速启动植被恢复进程,控制水土流失、重建退化荒山生态系统的有效措施。一林多用的树种组合,合理的生物体系设计和针、阔叶树种混交是改良地力,改善环境,促进退化荒山生态系统进展演替的优良途径。先进造林技术的应用和林农牧业结合的复合经营方式是提高综合治理效益,促进并维持生态
2、恢复过程稳定的先决条件。关键词:退化荒山生态系统;植被重建TheVegetationRestorationandtTypesofDegradedBarrenEcosystemsInJiiGUOXiao2Min,NIUDe2Kui,LIU,XIAOShun2Zhen,YEXue2Hua (Collegeof2002,22(6):878～884.Forestry,xAgricu,Nanchang,330045,China).ActaEcologicaSinica,Abstract:reonfiveajortypesofbarrenhillsinJiangxiProvi
3、nce,trialsweresetupin1990andmonitoredafterwards.Bothshortandlongtermfeasibilityweretakenintoac2countbyhighvaluedandhardyspeciestoensurethesuccessofthere2vegetationprocesseson.thesebarrenhillsBasedonthetypeofthebarrenhillandlocalweatherpattern,speciesoftrees,shrubs,grassesandtheircombi
4、nationswerecarefullyselectedtostudysuitabilityoftheplant.Accordingtothelocalcondi2tionsandgoals,variousmanagementskillsandpracticeswitheitherthecross2overortherandomizedblockdesignwereconducted.Thesurvivalrates,growthratesanddegreeofvegetativecoveragewererecordedannually.In1994,econom
5、icanalysisandamoredetailedsurveywereconductedtorecordbiomass,microclimate,soilpropertiesandrootgrowth.Theresultsindicatedthatsimultaneousintroductionofamixtureofselectedconifers,broadleaftrees,shrubsandgrassimprovedsoilpropertiesanderosioncontrolsignificantlyandstimulatedfurthervegeta
6、2tivegrowth.Eminentpioneertreesandgrassesare:Pinusmassoniana,Platycladusorientalis,Liquidambarfo2mosana,SchimasuperbaandGardeniajasminoides,Lespedezaspp.Onlimestonebarrenhills,combina2tionsofPlatycladusorientalisandFirmianasimplex,ToonasinensisandAmorphafruticosa,Alnuscremas2togynaand
7、PlatycladusorientalisaswellasCornusmacrophyllaandAmorphafruticosagavesatisfactory.MixturesofPinusmassonianaspp.andLespedezaspp.withPaspalumwettsteimitaswellasPi2results基金项目:江西省科委重点科技资助项目([1993]24922);省林业厅科技推广资助项目([1990]78)收稿日期:2001207214;修订日期:2001210210作者简介:郭晓敏(1956～),女,江西遂川人,博士,教授。主要
8、从事退化生
