| Canopy Photosynthesis and Carbon Gains of Two Typical Alpine Plant Communities | |
| Shi, Rui1,2; Su, Peixi1; Zhou, Zijuan1; Xie, Tingting3; Ding, Xinjing1,2 | |
| 刊名 | INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY
 |
| 2018 | |
| 卷号 | 20期号:8页码:1893-1902 |
| 关键词 | Canopy photosynthesis Carbon gains Environmental factors Path analysis Water use efficiency |
| ISSN号 | 1560-8530 |
| DOI | 10.17957/IJAB/15.0752 |
| 通讯作者 | Su, Peixi(supx@lzb.ac.cn) |
| 英文摘要 | The canopy photosynthesis of wetland and meadow vegetation communities on the Zoige Plateau, China, was measured to reveal photosynthetic characteristics and their responses to climate and soil factors and to analyze the daily carbon budgets. Results showed that the diurnal average of the canopy apparent photosynthetic rate (CAP) in late July exceeded that in late August by 13% (wetland) and 24% (meadow). The increased CAP indicated more vigorous growth in late July. In the same months, the CAP and CAW (canopy apparent water use efficiency) of meadow were higher than those in wetland. Meadow community had a higher carbon fixation rate, and exhibited water-saving strategy. Photosynthetically active radiations (PAR) were the main determining factor for the two communities in both July and August. The relative humidity in wetlands, compared with that of meadows, presented a relatively stronger directly negative effect on photosynthesis The daily net carbon gain of wetland were 1.72 g.m(-2).d(-1) in late July and 1.71 g. m(-2).d(-1) in late August, and the corresponding values of meadow were 2.7 g. m(-2).d(-)1 and 2.2 g.m(-2).d(-1). The comparatively higher CAP and leaf area index led to the larger net carbon gain in meadow. We inferred that the stronger net gain in meadow might induce more pasture yield. (C) 2018 Friends Science Publishers. |
| 收录类别 | SCI |
| WOS关键词 | GAS-EXCHANGE ; ACTIVATION STATE ; USE EFFICIENCY ; CO2 EXCHANGE ; LEAF-AREA ; TEMPERATURE ; ECOSYSTEMS ; LIGHT ; INHIBITION ; TUNDRA |
| WOS研究方向 | Agriculture ; Life Sciences & Biomedicine - Other Topics |
| WOS类目 | Agriculture, Multidisciplinary ; Biology |
| 语种 | 英语 |
| 出版者 | FRIENDS SCIENCE PUBL |
| WOS记录号 | WOS:000440037800027 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2557778 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Su, Peixi |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Heihe Key Lab Ecohydrol & Integrated River Basin, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Rui,Su, Peixi,Zhou, Zijuan,et al. Canopy Photosynthesis and Carbon Gains of Two Typical Alpine Plant Communities[J]. INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY,2018,20(8):1893-1902. |
| APA | Shi, Rui,Su, Peixi,Zhou, Zijuan,Xie, Tingting,&Ding, Xinjing.(2018).Canopy Photosynthesis and Carbon Gains of Two Typical Alpine Plant Communities.INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY,20(8),1893-1902. |
| MLA | Shi, Rui,et al."Canopy Photosynthesis and Carbon Gains of Two Typical Alpine Plant Communities".INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY 20.8(2018):1893-1902. |
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