沙尘暴农业防治途径研究

Study on Agricultural Approaches of Preventing Sandstorm

经对比发现,我国春麦区与沙尘暴源区、路径区、多发区基本重合。针对沙尘暴发生的地质历史背景、形成机制、时空分布规律以及环境的暖干化趋势,在可行性分析的基础上,历经10多年的田间种植试验和推广证实:在我国沙尘暴多发区的春麦区改、扩种冬小麦可以在沙尘暴多发期增加地面植被覆盖,有效消弱扬沙条件;并通过提高复种指数和光热利用率,实现社会效益、生态效益和经济效益的相互协调提高,推动西部大开发生态建设的可持续发展。

The spring wheat cultivated areas in China basically match the sandstorm source areas, sweeping areas or high frequently occurring areas. It is feasible that agricultural approaches can control sandstorm based on analysis on the history background, formation mechanism, temporal and spatial distribution regularity, and the trend of global warmth. Test for more ten years of expanding on planting in the field have proved that replanting and expanding winter wheat in spring wheat district can increase the time of ground covered with vegetation, effectively prevent the calamity of the sandstorm, make fully use of sun resources, realize the integrated improvement of social benefit, ecological benefit and economic benefit, and strengthen the sustainable development of ecological construction in northwest China.