| 13c discriminations of pinus sylvestris vs. pinus ponderosa at a dry site in brandenburg (eastern germany): 100-year growth comparison. | the carbon isotope composition (delta(13)c, per thousand) and discrimination (delta, per thousand) of old grown north american pinus ponderosa dougl. ex p. et c. laws. and european pinus sylvestris l. were determined using trees grown under almost identical growing conditions in a mixed stand in bralitz, northeast germany. single-tree delta(13)c analyses of tree-ring cellulose of both species were carried out at a yearly resolution for the period 1901-2001 and the results compared with growth (b ... | 2007 | 17558749 |