High sensitivity of a tropical rainforest to water variability: Evidence from 10 years of inventory and eddy flux data
文献类型：SCI/SSCI论文
| 作者 | Tan Z. H. ; Cao M. ; Yu G. R. ; Tang J. W. ; Deng X. B. ; Song Q. H. ; Tang Y. ; Zheng Z. ; Liu W. J. ; Feng Z. L. ; Deng Y. ; Zhang J. L. ; Liang N. S. ; Zhang Y. P. |
| 发表日期 | 2013 |
| 关键词 | drought respiration drought silence hypothesis photosynthesis accelerating growth hypothesis amazonian forests tree growth carbon drought climate dynamics china xishuangbanna respiration communities |
| 英文摘要 | The response of tropical rainforest to environmental perturbation is of critical importance given their potential to mitigate climate change. Nevertheless, it was not well addressed to date. Therefore, related hypotheses, i.e., CO2 fertilization-related accelerating growth hypothesis (AGH) and remote sensing-based drought resilience hypothesis (DRH), were necessarily to be testified. Here these hypotheses were tested through 10 years of annual inventory records and half-hourly eddy flux measurements from a tropical rainforest. We show that the studied forest is highly sensitive to water variability, with low canopy photosynthesis, slow stand growth, and high mortality rate in dry years, especially in the severe drought. Ecosystem respiration was not correlated with net water balance within years, but significant correlations were found between these parameters with a time lag of 10-15 months. A boom of photosynthesis in 1 year post drought was most probably a result of nutrient pulse-related drought. In general, neither AGH nor DRH was supported by the study. Given predictions that tropical areas will experience increasingly dry conditions in the future, much attention should be paid to the potential fate of carbon sink in tropical rainforests. |
| 出处 | Journal of Geophysical Research-Atmospheres |
| 卷 | 118 |
| 期 | 16 |
| 页 | 9393-9400 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 2169-897X |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30241]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Tan Z. H.,Cao M.,Yu G. R.,et al. High sensitivity of a tropical rainforest to water variability: Evidence from 10 years of inventory and eddy flux data. 2013. |
入库方式： OAI收割
来源：地理科学与资源研究所
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