Title: CARBON ISOTOPE COMPOSITIONS OF PLANT LEAVES FROM KARST MOUNTAINOUS AREA,GUIZHOU,CHINA
Abstract:The carbon isotope compositions of 12 plant species leaves collected from the karst Mountainous area in Guizhou were analyzed.The characteristics of foliar carbon isotope compositions,the differences ...The carbon isotope compositions of 12 plant species leaves collected from the karst Mountainous area in Guizhou were analyzed.The characteristics of foliar carbon isotope compositions,the differences of carbon isotope compositions of interspecies and different habitat conditions,the changes of carbon isotope compositions with time and space were studied.The results showed that the foliar δ13C from the study area has an average of-28.14‰ and range of-26.98‰~-29.15‰.The mean value of δ13C is lower than that from other areas except for tropical rain area in China,and the change extent is narrower than that other areas.There are greater differences between species.The δ13C in Pterdium aquilinum var.latiusculum affected by habitat conditions is greater than Cyclosorus acuminatus,Rhus chinensis,Pyracantha fortureana and Coriatia sinica.The young leaves have higher δ13C values than the mature ones,but the change extents vary among species.The δ13C values increased with elevateel altitude both in small and large scales.However,the increasing extents of the δ13C values are different among species.Read More
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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