| 青藏高原红梁河风沙动力环境特征 |
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| 引用本文： | 谢胜波,喻文波,屈建军,庞营军.青藏高原红梁河风沙动力环境特征[J].中国沙漠,2018,38(2):219-224. |
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| 作者姓名： | 谢胜波 喻文波 屈建军 庞营军 |
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| 作者单位： | 1. 中国科学院西北生态环境资源研究院 沙漠与沙漠化重点实验室, 甘肃 兰州 730000;2. 中国人民解放军63607部队, 甘肃 酒泉 735000;3. 中国林业科学研究院 荒漠化研究所, 北京 100091 |
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| 基金项目： | 国家公益性行业（林业）科研专项（201504401）；中国博士后科学基金项目（2014M560817，2015T81069） |
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| 摘 要： | 青藏高原红梁河沙地广布,目前对其风沙活动规律认识不足,不利于开展防沙工作。为此,通过野外观测和室内分析、计算等方法,对红梁河的风沙动力环境特征进行研究。结果表明:红梁河年起沙风向以N风为主,冬春季输沙势(DP)、合成输沙势(RDP)大,夏秋季输沙势、合成输沙势小,合成输沙方向(RDD)年内变化较小。年输沙势为249.84VU,属于中风能环境,年合成输沙势为242.92VU,年方向变率指数(RDP/DP)为0.97,属于大比率,年合成输沙方向为173.8°,为S方向。八方位年实测输沙总量为434.33kg·m-1,以SW方向的输沙量最大。
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| 关 键 词： | 起沙风 输沙势 实测输沙量 |
| 收稿时间： | 2016-10-17 |
| 修稿时间： | 2016-11-14 |
Dynamic Environment of Blown Sand at Honglianghe River of Qinghai-Tibet Plateau |
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| Xie Shengbo,Yu Wenbo,Qu Jianjun,Pang Yingjun.Dynamic Environment of Blown Sand at Honglianghe River of Qinghai-Tibet Plateau[J].Journal of Desert Research,2018,38(2):219-224. |
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| Authors: | Xie Shengbo Yu Wenbo Qu Jianjun Pang Yingjun |
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| Institution: | 1. Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;2. The Unit 63607 of People's Liberation Army of China, Jiuquan 735000, Gansu, China;3. Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China |
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| Abstract: | Sand land in the Honglianghe River area of Qinghai-Tibet Plateau is widespread, and its blown sand activity rules are currently not sufficiently understood, which is not conducive to targeted sand prevention and control work. Therefore, the dynamic environments characteristics of blown sand at Honglianghe River are investigated using different methods, such as field observation, laboratory analysis, and calculation. The direction of yearly sand-moving wind at Honglianghe River is usually found to originates from the north direction, and the sand drift potential (DP) and the resultant drift potential (RDP) are high during winter and spring, low during summer and autumn. The variation of the monthly resultant drift direction (RDD) is stable. The yearly sand drift potential is 249.84 VU, which indicates an intermediate wind energy environment. The yearly resultant drift potential is 242.92 VU, and the yearly index of directional wind variability (RDP/DP) is 0.97, which indicate a high ratio. The yearly resultant drift direction is 173.8, which indicate a south direction. The yearly total sand transport quantity of the eight directions of Honglianghe River is 434.33 kg·m-1, and the sand transport quantity of the southwest direction reached its maximum. The research results have guiding significance for controlling sand hazards of the locale. |
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| Keywords: | sand-moving wind sand drift potential measured sand transport quantity |
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