| 古尔班通古特沙漠植物雾凇凝结特征 |
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| 引用本文： | 周宏飞,周宝佳,代琼.古尔班通古特沙漠植物雾凇凝结特征[J].水科学进展,2010,21(1):56-62. |
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| 作者姓名： | 周宏飞 周宝佳 代琼 |
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| 作者单位： | 1.西安理工大学水利水电工程学院, 陕西, 西安, 710048; |
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| 基金项目： | 国家自然科学基金资助项目，国家重点基础研究发展计划(973)资助项目，"十一五"国家科技支撑计划资助项目 |
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| 摘 要： | 古尔班通古特沙漠冬季稳定积雪期长,多雾凇天气.通过2007年11月~2008年3月在沙漠南缘的定位实验观测,发现植物雾凇凝结水总量平均为5.8 mm,占冬季降水量的21.8%,其中,沙漠区垄间和垄上植物雾凇凝结水总量分别是3.8 mm和9.1 mm,各占冬季降水量的14.4%和34.3%;植物雾凇凝结水量是雪面凝结水量的5倍;荒漠植物的雾凇凝结水可以增加古尔班通古特沙漠冬季植被分布区域水资源量.雾凇形成的最大风速一般小于3m/s;-15℃~-20℃是雾凇形成次数最多的气温区间,占全部雾凇日数的24.3%,气温低于-30℃时雾凇凝结量显著减少;观测期雾凇形成时大气最大相对湿度小于80%的日数占冬季雾凇日数的41%.低温、高湿、低风速的气象条件,加之梭梭枝条的细直径和针状叶特征,是古尔班通古特沙漠冬季具有丰富植物雾凇凝结水的重要原因.
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| 关 键 词： | 古尔班通古特沙漠 凝结特征 植物雾凇 试验研究 |
| 收稿时间： | 2008-11-22 |
Observational analysis of rime condensation on plants over the Gurbantunggut Dsert in China |
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| ZHOU Hong-fei,ZHOU Bao-jia,DAI Qiong.Observational analysis of rime condensation on plants over the Gurbantunggut Dsert in China[J].Advances in Water Science,2010,21(1):56-62. |
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| Authors: | ZHOU Hong-fei ZHOU Bao-jia DAI Qiong |
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| Affiliation: | ZHOU Hong-fei1,2,3,ZHOU Bao-jia4,DAI Qiong5(1.Institute of Water Resources , Hydro-electric Engineering,Xi\'an University of Technology,Xi\'an 710048,China,2.Xinjiang Institute of Ecology & Geography,the Chinese Academy of Sciences,Urumqi 830011,3.National Fukang Desert Ecosystem Field Sciences Observation , Research Station,Fukang 831505,4.Yuxi Investigation , Design Institute of Water Resources , Electric Engineering , Architecture,Chongqing 402160,5.College of Sciences , Techn... |
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| Abstract: | There are long winter seasons with stable snow cover and frequently rime phenomena in the Gurbantunggut Desert in China.Based on the rime observations from November 2007 to March 2008 at the experimental sites on the southern margin of the Gurbantunggut Desert,we find that the average water equivalent of rime condensation on desert shrub crowns is 5.8 mm,about 5 times more than that on snow surfaces,and accounts for 21.8% of the total winter precipitation.The values of rime-fall on plants on the top and foo... |
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| Keywords: | Gurbantunggut Desert condensation characteristic plant rime experimental research |
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