Analysis of an oasis microclimate in China's hyperarid zone
文献类型：期刊论文
| 作者 | Qi Feng; Zhuo Macuo; Xi Haiyang |
| 刊名 | ENVIRONMENTAL GEOLOGY
 |
| 出版日期 | 2009-09-01 |
| 卷号 | 58期号:5页码:963-972 |
| 关键词 | Hyperarid zone Desert oasis Photosynthetically active radiation (PAR) Microclimate |
| ISSN号 | 0943-0105 |
| DOI | 10.1007/s00254-008-1576-6 |
| 通讯作者 | Qi Feng(qifeng@lzb.ac.cn) |
| 英文摘要 | The microclimate of a desert oasis in China's hyperarid zone was monitored, analysed and compared to that of nearby forested lands. Factors associated with differences in photosynthetically active radiation (PAR) between clear, cloudy and dust storm days are discussed. Desert oases were shown to fulfill ecological functions such as altering solar radiation, adjusting near-ground and land surface temperatures, reducing temperature differences, lowering wind velocity, and increasing soil and atmospheric humidity. Total solar radiation within the oasis was roughly half that above the forest canopy. During the growing season, air temperatures in Populus euphratica Olivier and Tamarix ramosissima Ledeb. woodlands were, on average, 1.62 and 0.83A degrees C lower, respectively, than that in surrounding woodlands. The greater the forest cover, the greater was the difference in temperature. Air temperature was higher at the upper storey than that at the lower storey of the community, i.e., air temperature increased with increasing height above the soil surface. During the growing season, relative humidity was higher in woodlands than in surrounding areas: relative humidity in P. euphratica and T. ramosissima woodlands were, on average, 8.5 and 4.2% higher, respectively, than that in the surrounding area. Mean wind velocity in the P. euphratica forest land was 0.33 m/s, 2.31 m/s lower than that in the surrounding area. On dust storm days PAR and total radiation, Q, were significantly lower than that on cloudy or clear days. Their ratio, eta (Q) = PAR/Q, was larger and much more variable on dust storm days than that on clear or cloudy days. |
| 收录类别 | SCI |
| WOS关键词 | PHOTOSYNTHETICALLY ACTIVE RADIATION ; CANOPY |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000269014000006 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556171 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Qi Feng |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qi Feng,Zhuo Macuo,Xi Haiyang. Analysis of an oasis microclimate in China's hyperarid zone[J]. ENVIRONMENTAL GEOLOGY,2009,58(5):963-972. |
| APA | Qi Feng,Zhuo Macuo,&Xi Haiyang.(2009).Analysis of an oasis microclimate in China's hyperarid zone.ENVIRONMENTAL GEOLOGY,58(5),963-972. |
| MLA | Qi Feng,et al."Analysis of an oasis microclimate in China's hyperarid zone".ENVIRONMENTAL GEOLOGY 58.5(2009):963-972. |
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来源：寒区旱区环境与工程研究所
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