基金项目:云南省科技计划项目( 2009ZC084M);云南省教育厅科技计划项目 (08C0093);西南林业大学生态学校级重点建设学科项目 (XKX200902)
作者简介:栗忠飞( 1976-),男,内蒙古乌海市人,讲师,博士生,主要从事热带森林生态学研究; E-mail: lizhongfei@sohu.com
For better understanding ecological adaptability of the species living in different tropical rain forest types across a altitude of change in Xishuangbanna to environmental change, the ratio of C:N:P of leaves of four kinds of young tree species coming from tropical seasonal rain forest and tropical montane rain forest in different altitude in were measured. These findings show that (1) the mean of C content of leaf for species living in montane rain forest was higher than that in seasonal rain forest, which were 478.67 mg•g-1 and 463.33 mg•g-1 respectively; (2) the mean of P content of leaf for species living in seasonal rain forest was higher than that in montane rain forest, which were 1.92 mg•g-1 and 0.93 mg•g-1 respectively; (3) the mean of C:N of leaf for was evenly split between seasonal and montane rain forest, which was 27 and 27.4 respectively; (4) both C︰ P and N︰ P of leaf of young tree living in seasonal rain forest were significant lower than that in montane rain forest. The means of C︰ P and N︰ P for 2 kinds of rain forest types were 254.2, 606.9 and 9.7, 21.4 respectively. In conclusion, the C content of all young trees were relatively high, and the C storage ability of these species in montane rain forest was higher than that in seasonal rain forest. The response of C︰ N︰ P of leaf of young tree to altitude of change was obvious.