沙漠化治理与沙尘暴防治

研究内容：构建复杂地形风沙形成的“风-水-碳-盐-沙”耦合模型，模拟沙尘释放-传输-沉降的内外循环过程，提出区域“水-土-气-生-人”多元承载协同的沙尘地面调控模式；探究沙漠生态-水文过程及其生物调控机理，集成优化沙漠-绿洲过渡带新型生物治沙技术和应用模式，促进沙区生态重建与恢复；研究荒漠绿洲土壤、水热耦合机理和稳定维持机制，提出干旱区内陆河流域生态和生产用水的配置依据，研发提高绿洲水效益技术和水资源合理利用途径；系统研究寒旱区沙漠化-绿洲化时空格局演化过程，揭示人类活动和气候变化的驱动机制，构建沙漠化防治与绿洲化调控的协同管理模式。服务于国家西部生态安全屏障建设和寒旱区生态系统的可持续发展。

目前已取得的主要进展：①厘清了西部沙漠的类型、面积、风沙危害的主要方式和危害程度，揭示了东亚沙尘清晰的三维传输路径和垂直分布特征；重建了我国西部典型沙化区三维地貌场景；发现了夏季青藏高原西北部无人区频繁出现的沙尘天气；探究了塔克拉玛干沙尘抬升至青藏高原这一南向传输的动力机制及其直接辐射强迫特征；②揭示了典型干旱区与高寒地区地表风沙运动与沙丘移动的移动规律；深入剖析了风沙运动物理过程并揭示了风沙运动环境效应及其调控机理；同时建立了防沙治沙工程的优化设计理论框架；③定量模拟了典型沙化区域防沙治沙结构，并系统评估了防风固沙技术以及固、阻、输防沙治沙工程技术等各种防沙治沙措施的有效性与经济效益以及风沙灾害效应；探讨了风沙灾害的防治与调控、区域生态恢复与生态－生产范式的措施，并提出了用农业系统方法综合防治土地荒漠化的理论，并发展和完善了我国防治荒漠化的基本理论体系；④建立了民勤西沙窝、高台黑河北岸、安西北桥子等6处治沙或荒漠化综合防治样板，示范并推广治沙造林面积5.2万公顷,治理沙害5.5万公顷,保护农田46万公顷。

代表性文章：

1. Zhang, H., T. Bo, and X. Zheng, 2017: Evaluation of the electrical properties of dust storms by multi-parameter observations and theoretical calculations. Earth and Planetary Science Letters, 461: 141-150.

2. Huang, N., and G. Shi, 2017: The significance of vertical moisture diffusion on drifting Snow sublimation near snow surface, The Cryosphere, 11(6): 3011-3021.

3. Bo, T., L. Fu, L. Liu, and X. Zheng, 2017: An improved numerical model suggests potential differences of wind-blown sand between on Earth and Mars. Journal of Geophysical Research: Atmospheres, 122(11): 5823-5836.

4. Sun, W., and N. Huang, 2017: Influence of Slope Gradient on the Behavior of Saltating Sand Particles in a Wind Tunnel, Catena, 148: 145-152.

5. Yin, X., Huang, N., and Wang, Z., 2017: A numerical investigation into sand grain/slope bed collision. Powder Technology, 314.

6. Huang, N., Dai, X., and Zhang, J., 2016: The impacts of moisture transport on drifting snow sublimation in the saltation layer. Atmospheric Chemistry and Physics, 16(12), 7523-7529.

7. Zhang, J., Teng, Z., Huang, N., Guo, L., and Shao, Y., 2016: Surface renewal as a significant mechanism for dust emission. Atmospheric Chemistry and Physics, 16, 15517-15528.

8. Wang, G., X. Zheng, 2016: Very large scale motions in the atmospheric surface layer: a field investigation. Journal of Fluid Mechanics, 802: 464-489.

9. Zhang, J., Shao, Y., and Huang, N., 2014: Measurements of dust deposition velocity in a wind-tunnel experiment. Atmospheric Chemistry and Physics, 14(17), 8869-8882.

10. Huang, T., Zhang, X., Ling, Z., Zhang, L., Gao, H., Tian, C., Guo, J., Zhao, Y., Wang, L., Ma, J.*, 2016: Impacts of large-scale land-use change on the uptake of polycyclic aromatic hydrocarbons in the artificial Three Northern Regions Shelter Forest across northern China. Environ. Sci. Technol., 50, 12885-12893.