Objective The environmental characteristics of wind and sand in Gansu Dunhuang Xihu National Nature Reserve were analyzed, in order to provide a basis for the scientific and effective implementation of wind and sand control and ecological protection in the reserve. Methods Taking this area as the research object, wind speed and direction data from the automatic weather station in the monitoring area in 2019, 2020, 2023, and 2024 were statistically processed through field observation. The wind conditions and wind-sand environment of the Dunhuang Xihu Reserve were analyzed and discussed. Results ① The four-year average sand-driving wind speed in the Dunhuang Xihu National Nature Reserve ranged from 6.28 m/s to 6.43 m/s. The annual maximum wind speed was approximately 14 m/s, and the annual average sand-driving wind frequency was 8.43%. Sand-driving winds were mostly concentrated in spring and summer, accounting for 73.29% of the whole year, with sand-driving wind frequencies ranging from 11% to 12% in these two seasons. The sand-driving wind directions in the reserve were mainly E and ENE. Among these, the single direction with the largest proportion was E, while that with the smallest proportion was SE. ② The annual average drift potential (DP) was 666.39 VU, classifying the area as a high wind-energy zone. Similar to sand-driving winds, DP was mainly concentrated in the E and ENE directions. The annual average resultant drift potential (RDP) was 141.09 VU, and the annual average directional variability index (RDP/DP) was 0.24, indicating low directional variability. The wind conditions were relatively complex, characterized as a compound or blunt bimodal pattern. ③ The seasonal differences in drift potential were significant, mainly concentrated in spring and summer, accounting for 80.8% of the whole year. The drift potential was highest in summer and lowest in winter. The directional variability of the drift potential for the four seasons was 0.29, 0.43, 0.34, and 0.39, respectively, indicating medium to low variability. The wind conditions in all four seasons were relatively complex. Conclusion The reserve is a high wind-energy zone, with prevailing east-west winds throughout the year. Sand-driving winds and drift potential are primarily concentrated in spring and summer. The annual and seasonal directional variability of the drift potential is medium to low, and the wind conditions are relatively complex. It is necessary to carry out wind prevention and sand control as well as ecological restoration work in a way that suits local conditions.
文献参数: 董建祥, 罗永忠, 孙伟刚, 等.甘肃敦煌西湖国家级自然保护区起沙风况及输沙势特征[J].水土保持通报,2025,45(6):149-157. Citation:Dong Jianxiang, Luo Yongzhong, Sun Weigang, et al. Sand-driving wind conditions and drift potential characteristics in Gansu Dunhuang Xihu National Nature Reserve [J]. Bulletin of Soil and Water Conservation,2025,45(6):149-157.
PangYingjun, WuBo, JiaXiaohong, et al. Characteristics of wind regime and drift potential in mu us sandy land [J]. Journal of Desert Research, 2019,39(1):62-67.
ZhangLechun, ZhangDengshan, WangHaijiao, et al. Characteristics of sand-driving wind regime and sand drift potential in windy season in the east sandy area of Qinghai Lake [J]. Journal of Arid Land Resources and Environment, 2023,37(3):91-97.
QuShufeng, ZhangGuoming, DongMiao, et al. Characteristics of wind regime and sediment transport potential in the northeast of Altun Mountain National Nature Reserve [J]. Journal of Desert Research, 2023,43(2):114-120.
[7]
FrybergerS G, DeanG.Dune forms and wind regime[A]∥Mckee E D. A study of global sand seas [C]. Washington DC:U.S.Geological Survey,1979.
LuoFengmin, GaoJunliang, XinZhiming, et al. Characteristics of sand-driving wind regime and sediment transport in northeast edge of Ulan Buh Desert [J]. Transactions of the Chinese Society of Agricultural Engineering, 2019,35(4):145-152.
ZuRuiping, ZhangKecun, QuJianjun, et al. Characteristics of surface winds in Takla-Makan deserts and their relationship to the orientation of dunes in neighboring regions [J]. Quarterly Journal of Applied Meteorology, 2005,16(4):468-475.
ZhangHua, LiFengrui, LiYulin, et al. Wind regime and resultant sand-transporting potential of Naiman Banner in Horqin sandy land during past five years [J]. Journal of Desert Research, 2004,24(5):623-627.
HuGuangyin, DongZhibao, ZhangZhengcai, et al. The regime of sand driving wind and sand drift potential in Zoige Basin [J]. Journal of Desert Research, 2020,40(5):20-24.
GuoHongxu, WangXueqin, JiangJin, et al. Wind regime and its geomorphologic significance in the hinterland of Gurbantonggut Desert [J]. Arid Zone Research, 2011,28(4):580-585.
GuoYouyuan, QianGuangqiang, YangZhuanling, et al. Morphology, grain size and environmental wind regine of granule ripples in the Sanlongsha area of the Kumtagh Desert [J]. Journal of Desert Research, 2024,44(4):37-45.
WangYongsheng, YangWenbin, LiYonghua, et al. Wind regime and resultant sand-transporting potential in the desert-oasis ecotone in the eastern marginal zone of the Kumtag Desert [J]. Journal of Arid Land Resources and Environment, 2015,29(1):140-144.
AnZhishan, ZhangKecun, TanLihai. Characteristics of the sand transportation intensity in the desert-oasis ecotone:A case study in Heishanzui area of Dunhuang [J]. Journal of Desert Research, 2016,36(6):1653-1658.
ZhangKecun, AnZhishan, CaiDiwen, et al. Spatial variation of wind dynamical characteristics in the desert-oasis transitional zone under typical weather conditions [J]. Arid Land Geography, 2016,39(5):1004-1010.
ZhangKecun, NiuQinghe, QuJianjun, et al. Analysis of wind-blown sand environment in the Singing Sand Mountain & Crescent Moon Spring Scenic Spot in Dunhuang, China [J]. Journal of Desert Research, 2012,32(4):896-900.
ZhangKecun, NiuQinghe, AnZhishan, et al. Aeolian dynamics environments near earth surface in desert-oasis transitional zone of Dunhuang area [J]. Bulletin of Soil and Water Conservation, 2015,35(4):8-11.
YuYanping, ZhangKecun, AnZhishan, et al. Dynamic environment of wind along the Dunhuang-Golmud railway [J]. Journal of Desert Research, 2020,40(1):41-48.
HuFei, ZhangKecun, AnZhishan, et al. Comparison of wind dynamic environment among desert, oasis and Gobi [J]. Journal of Desert Research, 2020,40(4):113-119.
[37]
吴三雄,袁海峰.甘肃敦煌西湖国家级自然保护区科学考察报告[M].北京:中国林业出版社,2010.
[38]
WuSanxiong, YuanHaifeng. Report on scientific investigation of west lake national nature reserve in Dunhuang, Gansu Province [M]. Beijing: China Forestry Publishing House, 2010.
ZhangJiqiang, ChenWenye, KangJianjun, et al. Dunhuang west lake salt meadow reed plant community structure and diversity distribution pattern along altitudinal gradient [J]. Bulletin of Soil and Water Conservation, 2013,33(2):173-176.
ChenWenye, ZhangJiqiang, ZhaoMing, et al. Species diversity characteristics of plant community in Xihu Desert wetland of Dunhuang, Gansu Province [J]. Journal of Desert Research, 2012,32(6):1639-1646.
LiuXiya, WangHaibing, ZuoHejun, et al. Wind conditions and drift potential in Bayinwenduer Desert, China [J]. Journal of Desert Research, 2023,43(5):41-48.
LiangXiaolei, NiuQinghe, AnZhishan, et al. Sand-driving wind regime and sand drift potential in the yardang landform areas of southern Suoyang Town, Guazhou, Gansu, China [J]. Journal of Desert Research, 2019,39(3):48-55.
[49]
王翔宇.不同配置格局沙蒿灌丛防风阻沙效果研究[D].北京:北京林业大学,2010.
[50]
WangXiangyu. Study on wind and sand prevention effect of Artemisia sphaerocephala shrub with different configuration patterns [D]. Beijing:Beijing Forestry University, 2010.
[51]
吴正.风沙地貌与治沙工程学[M].北京:科学出版社,2011.
[52]
WuZheng. Geomorphology of Wind-Drifts Sand and their Controlled Engineering[M]. Beijing: Science Press, 2011.
MiaoHenglu, WangJian, ZhangRuiqiang, et al. Characteristics of wind regime and drift potential of the desert steppe in northern slope of Yinshan Mountains, Inner Mongolia [J]. Journal of Arid Land Resources and Environment, 2022,36(4):102-110.
ZhouDandan, DongJianlin, GaoYong, et al. Grain sizes analysis and soil loss of surface soil during desertification process on Bayinwenduer Desert [J]. Arid Land Geography, 2008,31(6):933-939.