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- W2374691395 abstract "【Objective】This study aimed to investigate the effects of different thinning intensities on photosynthetic characteristics of Quercus aliena var.acuteserrata forests on south slope of Qinling Mountains.【Method】In the Q.aliena var.acuteserrata forests of Huoditang on south slope of Qinling Mountains,13sample plots were thinned.Among these plots,there were 3plots for each of the four thinning intensities(5%,10%,15%,and 20%)and the last plot without thinning was used as control.Environmental factors and eco-physiological factors of Q.alienavar.acuteserrata were measured and variance analysis,regression analysis and correlation analysis were conducted.【Result】Both environmental factors and eco-physiological factors changed after thinning.PAR,Ta,Ca,Pn,Tr,Ls and WUEincreased significantly and RHdecreased significantly at 15%and 20%thinning intensities(P0.01).Gs significantly decreased at 15% thinning intensity(P0.01).Ci was lower in the thinned forests without significant difference among different thinning intensities.By fitting light response curves of photosynthesis,Pmax val-ues at 15%and 20%thinning intensities were high.Through hypothesis analysis,significant regression relationships were observed among Pnand environmental factors(P0.01).There were significant positive correlations(P0.01)among Pn,PARand Ta and there were significant negative correlations among Pn,Gs and Ci(P0.01).Accumulative photosynthesis was increased in the thinned forests,and 15%thinning intensity treatment was the highest.【Conclusion】15%thinning intensity was suggested for the Q.alienavar.acuteserrataforests on south slope of Qinling Mountains." @default.
- W2374691395 created "2016-06-24" @default.
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- W2374691395 date "2014-01-01" @default.
- W2374691395 modified "2023-09-27" @default.
- W2374691395 title "Effects of forest thinning on photosynthesis characteristics of Quercus aliena var.acuteserrataforests on south slope of Qinling Mountains" @default.
- W2374691395 hasPublicationYear "2014" @default.
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