黃河三角洲鹽地堿蓬（Suaedasalsa）種群生態(tài)學研究.pdf

1、山東大學碩士學位論文黃河三角洲鹽地堿蓬（Suaedasalsa）種群生態(tài)學研究姓名：宋百敏申請學位級別：碩士專業(yè)：生態(tài)學指導教師：王仁卿2002.5.21當蠻查蘭翟圭蘭竺蘭蘭H=H=000600STep0004183Pre3728906Thewatercontentishi曲erintheeveryorganofSuaedasalsa，themeanisabout80percent，thehighestis88percent，which

2、liesinleaves，andtherelationofwetanddryweightislinearityTheseasonaldynamicsofexistentbiomassisshowedbythefollowingequation：y=163976—238386t91441。t“25605。t“30967t“40087t“5epsThecurveofexistencebiomassofpupulationshowesasas

3、hapeof“S”thehighestoneis4809／m“themeanis2809／m!Therelationshipbetweenexistencebiomassandevironmentfactorsis：B=012698Tep一045515Pre7630982ThereproductiveallocationofSuaedasalsainexistentbiomassisabout54percent，whichisclear

4、lyhigherthanthatofannualgrassplantItisshowesthattheSuaedasalsacanwellaccommodatetotheviolentenvironmentStudingontherelationshipbetweenthemeanweightperplantanddensi拶ofSuaedasalsainthehootingstageandripeningstage，whichshow

5、sthatthebetterfitequationis：∥=2425546xo56，‘=068384Y=1923753x—o”r=070164Fromtheequation，wecanseethatb一1，itisshowedthatthedensityofthepopulationisn’treachingthemaxcontentofenvironmenLSothedensityreducefromthebootingstageto