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- W2361109382 abstract "Using the method of typical sampling and surveys,the populations of Quercus phillyraeoides were investigated in different districts,including Jiangshi,Kaihua,Renhua,Yuanling and Libo.Based on the methods of spatial series substituting for time series and size structure replacing age structure,the study was made on the population dynamics and structure of Quercus phillyraeoides in terms of time specific life table,survival analysis and spatial pattern.The results showed: ① the size class structure ratio of Quercus phillyraeoides was different among the 5 populations,which showed spindle-shape or inverted pyramid form of Jiangshi,Kaihua and Renhua;the population of Hunan Yuanling was the growth form,but the size class structure of Guizhou libo's was not integrated.② there was a significant positive correlation between height and DBH of Quercus phillyraeoides,and the fitted curve was the power equation y=2.024 6x0.4399(R2=0.741 4,P0.001).③ the negative number existed in the time specific life table in different populations,which indicated that the certain populations had the signs of recession,and the mid-size class individuals were very important for the population to maintain the dominant position in the communities.④ the change of survival curve,death curve and killing curve were wave mode,which revealed that a marked regularity of periodic fluctuation was in the process of natural regeneration,and maybe it was the main power for Quercus phillyraeoides to keep the dominant population.⑤ the Vpi index showed that Guangdong Renhua's was typical diminishing population(Vpi0),and the populations in the other places were increasing ones,but their values of Vpi were not significantly deviating from 0.⑥ the values of s2/ was more than 1,which meant that the spatial pattern of Quercus phillyraeoides population belonged to the aggregated distribution,and the index of m*,GI,CI and k had the same variation trend." @default.
- W2361109382 created "2016-06-24" @default.
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- W2361109382 date "2010-01-01" @default.
- W2361109382 modified "2023-09-26" @default.
- W2361109382 title "Analysis of the Population Dynamics of Quercus phillyraeoides" @default.
- W2361109382 hasPublicationYear "2010" @default.
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