資源描述：
《current status and advancements in research of plantation nutrient cycling》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在教育資源-天天文庫。
1、CurrentStatusandAdvancementsinResearchofPlantationNutrientCyclingCHINESEFORESTRYSCIENCEANDTECHNOLOGY(66—74)CurrentStatusandAdvancementsinResearchofPlantationNutrientCyclingLIKunZHANGChangshun2SUNYongyuI6Abstract:Thispaperintroducesconceptsandcurrentresearchstatusofplantationnutrientscy
2、clings,andanalyzesmaincontentsofplantationnutrientscyclingasnutrientscontents,accumulationanddistributionofnutrientselements,understoryspeciesandforestlitter.Atthesametime,thepapersummarizestheproblemsinplantationnutrientscyclinganditsprospects.Keywords:nutrientcycling,understoryspecie
3、s,forestlitter,prospectsNutrientcyclingreferstothecomplicatedprocessofcycling,transferring,chemica1elementsinthechangingofmineralandeco—system,whichisoneofthemostfundamentalfunctionsofeco—system.Someofthenutrientsmainlycirculateamongorganismsandatmosphere;othersmainlycirculateamongorga
4、nismsandsoil,oramongorganisms,atmosphereandsoil.Inshort,therearethreetypesofcirculationsofnutrientcyclinginecosystem:geochemicalcycles,biogeochemicalcyclesandbio—chemicalcycles.Asthelargestandmostcomplicatedlandecosysteminstructureandfunctionontheearth,theforestecosystemhavegreatinflue
5、ncesonmaintainingtheecologicalbalanceandenrichingspiritualandculturallivesofpeople.Thecontinuouscyclingofnutrientsisthefoundationofexistenceanddevelopmentforallspeciesinforestecosystem,andcycleandbalanceofnutrientelementsexertdirectimpactsonproductivity,stabilityandSUstainabilityofecos
6、ystem.Asplantationforestisaspecialforminteractionswiththefactorsofplantationwil1notonlyenrichthetheoreticalstudiesofecosystem,butinstructtheproductionpracticeaswelltoacceleratetheutilizationrateofnutrientscyclingandmaximallyimprovetheproductivityofplantationthroughadjustmentandameliora
7、tionofeachlimitingfactor.1CURRENTSTATUSOFRESEARCHTheearliestresearcherwhostudiedthecontentofplantationnutrientsisE.Ebermayer.Ebermayer(1876)measuredthenutrientcontentsinbroad—leavedforestandconiferousforestinBavaria,Germany,andelaboratedtheimportanceofforestlittersinnutrientscyclingi
