巴音温都尔沙漠东北缘起沙风风况及输沙势特征

张昊; 党晓宏; 刘阳; 蒙仲举; 郭春晖; 张格

doi:10.13961/j.cnki.stbctb.2023.05.031

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巴音温都尔沙漠东北缘起沙风风况及输沙势特征

试验研究

- 巴音温都尔沙漠东北缘起沙风风况及输沙势特征
- Characteristics of Sand-driving Wind Regime and Sediment Transport at Northeast Edge of Bayan Wendur Desert
- 水土保持通报 2023年43卷第5期页码：262-269
- 作者机构：
  
  1. 内蒙古农业大学沙漠治理学院,内蒙古,呼和浩特,010018
  2. 内蒙古杭锦荒漠生态系统国家定位观测研究站,内蒙古,鄂尔多斯,017400
  3. 内蒙古自治区水利科学研究院,内蒙古,呼和浩特,010020
  4. 内蒙古自治区包头市东河区农牧林草事业发展中心,内蒙古,包头,014040
  5. 中国林业科学研究院沙漠林业试验中心,内蒙古,巴彦淖尔,015200
- 作者简介：
- 基金信息：
  
  内蒙古自治区科技计划“乌珠穆沁沙地生态脆弱区植被恢复与重建技术研究(2020GG0077)”
- DOI：10.13961/j.cnki.stbctb.2023.05.031
  中图分类号： P931.3
- 纸质出版：2023
- 稿件说明：
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张昊, 党晓宏, 刘阳, 等. 巴音温都尔沙漠东北缘起沙风风况及输沙势特征[J]. 水土保持通报, 2023,43(5):262-269.

Zhang Hao, Dang Xiaohong, Liu Yang, et al. Characteristics of Sand-driving Wind Regime and Sediment Transport at Northeast Edge of Bayan Wendur Desert[J]. Bulletin of Soiland Water Conservation, 2023, 43(5): 262-269.
张昊, 党晓宏, 刘阳, 等. 巴音温都尔沙漠东北缘起沙风风况及输沙势特征[J]. 水土保持通报, 2023,43(5):262-269. DOI： 10.13961/j.cnki.stbctb.2023.05.031.

Zhang Hao, Dang Xiaohong, Liu Yang, et al. Characteristics of Sand-driving Wind Regime and Sediment Transport at Northeast Edge of Bayan Wendur Desert[J]. Bulletin of Soiland Water Conservation, 2023, 43(5): 262-269. DOI： 10.13961/j.cnki.stbctb.2023.05.031.

摘要

[目的] 起沙风和输沙势特征是评估区域风能环境的关键指标。分析巴音温都尔沙漠东北缘起沙风风况和输沙势变化特征，揭示该地区近地层风动力特点及风沙活动强度，评估区域风能环境状况，为研究区风沙运动研究和科学防沙治沙工作提供理论依据。[方法] 基于巴音温都尔沙漠东北缘气象站2017—2021年的风况数据，系统分析了该区域起沙风风况和输沙势变化特征。[结果] ①该地区年均起沙风频率为43.70%，平均起沙风速为7.57 m/s，二者均以春季最高。不同季节和年均起沙风均以偏西(W，WSW，SW)和偏南(S，SSE，SE)风向为主。②年均输沙势(DP)为68.36 VU，合成输沙势(RDP)为29.39 VU，风向变率指数(RDP/DP)为0.43，合成输沙势方向(RDD)为91.33°，春季输沙势(DP)和合成输沙势(RDP)显著高于其他季节。③研究区起沙风平均风速对输沙势的影响大于起沙风频率，风沙活动强度主要由风速大小决定。[结论] 巴音温都尔沙漠东北缘整体属于低风能环境，地表沙物质全年向东输移，春季是最主要的风沙活动期。6月是人工防护林建设和飞播造林治沙的关键时期，建议栽植防护林和飞播种子的走向与输沙势方向垂直，从而阻断沙物质持续东移。

Abstract

[Objective] The characteristics of sand-driving wind and sand-transporting potential are the key indexes for evaluating the regional wind energy environment. The change characteristics of the wind regime and transport potential of sand-driving wind in the Northeast Bayan Wendur Desert were analyzed

the dynamic wind characteristics and the intensity of the wind energy activity near the ground were revealed

and the regional wind energy environment was evaluated

in order to provide a theoretical basis for the study of sand movement and scientific options for sand movement prevention and control. [Methods] Wind data were acquired from a meteorological station on the northeast edge of the Bayan Wendur Desert from 2017 to 2021

and the characteristics of the sand-driving wind and sediment transport potential in the region were analyzed. [Results] ① The annual average frequency of sand-driving wind was 43.70%

and the average sand-driving wind speed was 7.57 m/s

both of which were the highest in spring. The sand-driving winds in different seasons and the annual average were mainly westerly (W

WSW

SW) and southerly (S

SSE

SE). ② The annual average sediment transport potential (DP) was 68.36 VU. The composite sediment transport potential (RDP) was 29.39 VU. The wind direction variability index (RDP/DP) was 0.43. The composite sediment transport potential direction (RDD) was 91.33°. The DP and RDP in spring were significantly greater than in other seasons. ③ The influence of the average wind speed on the sediment transport potential in the study area was greater than the frequency of the wind speed. The intensity of sand movement was mainly determined by wind speed. [Conclusion] The northeast edge of the Bayan Wendur Desert generally belongs to a low wind energy environment. The surface sand material is transported eastward throughout the year. Spring is the most important period of wind and sand activity. June is the key period for the construction of artificial protective forests and aerial-seeding afforestation for sand control. We recommend that the direction of planting protective forest shelterbelts and for aerial seeding of forest seeds be perpendicular to the direction of sand transport potential so as to block the continuous eastward movement of sand.

关键词

Keywords

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