Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.2172/432923 |
| 报告编号 | BNL--63742 |
| 来源ID | OSTI_ID: 432923 |
| Inter and intra-specific variation in photosynthetic acclimation response to long term exposure of elevated carbon dioxide | |
| Wilkinson, M. [Univ. of Essex, Colchester (United Kingdom)]|[Writtle Coll. (United Kingdom)] | |
| 英文摘要 | The response of intra and interspecific variation in photosynthetic acclimation to growth at elevated atmospheric CO{sub 2} concentration (600{micro}mol mol-l) in six important grassland species was investigated. Plants were grown in a background sward of Lolium perenne and measurements were made after four years of growth at elevated C{sub a}. Elevated CO{sub 2} was maintained using a FACE (Free-Air Carbon Enrichment) system. Significant intra and interspecific variation in acclimation response was demonstrated. The response of adaxial and abaxial stomatal conductance to elevated CO{sub 2} was also investigated. The stomatal conductance of both the adaxial and abaxial leaf surfaces was found to be reduced by elevated C{sub a}. Significant asymmetric responses in stomatal conductance was demonstrated in D. glomerata and T. pratense. Analysis of stomatal indices and densities indicated that the observed reductions in stomatal conductance were probably the result of changes in stomatal aperture. |
| 出版年 | 1996 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| 来源学科分类 | 54 ENVIRONMENTAL SCIENCES ; 56 BIOLOGY AND MEDICINE, APPLIED STUDIES ; CLIMATIC CHANGE ; CARBON DIOXIDE ; BIOLOGICAL ADAPTATION ; CALVIN CYCLE SPECIES ; BIOLOGICAL EFFECTS ; EXPERIMENTAL DATA ; PHOTOSYNTHESIS |
| URL | http://www.osti.gov/scitech/servlets/purl/432923 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/266650 |
| 推荐引用方式 GB/T 7714 | Wilkinson, M. [Univ. of Essex, Colchester . Inter and intra-specific variation in photosynthetic acclimation response to long term exposure of elevated carbon dioxide,1996. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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