(中文参考篇题 海南橡胶园土壤持续利用措施的研究).doc

Cha,.,Lin,.,Luo,W.,Li,,(中文参考篇题:海南橡胶园土壤持续利用措施的研究).(3):404--408ABSTRACT:ThisresearchwasdesignedtohelpsolveexistingsustainableuseproblemssuchassoilnutrientlossandsoilfertilitydeclineinnaturalrubberplantationslocatedinthehillylandofthesouthcentralmountainousareaofHainanIsland,,sustainableandtraditional,wereadoptedinafour-,need--paredtotraditionalmeasuresimprovedavailablePandavailableK;%lesssoilerosion(anaverageof3663tkm-2year-1)%;%;,,.,Hu,,,USA(中文参考篇题:美国俄勒冈州有机与传统农业生态系统间土壤生物区的比较).(3):395--403ABSTRACT:Soilsamplesat0--10cmindepthwerecollectedperiodicallyatpairedfieldsinCorvallis,Oregon,anicsoilecosystemhadasignificantlyhigher(P<)averagenumberorbiomassofsoilbacteria;densitiesofflagellates,amoebaeofprotozoa;