秸秆残茬覆盖对土壤水热效应及风蚀的影响

为探寻适宜东北辽河平原地区的最佳保护性耕作模式，以传统耕作模式为对照，探讨不同秸秆残茬覆盖模式对土壤含水率、地温及风蚀的影响。结果表明：不同覆盖模式对土壤含水率、地温及风蚀的影响不同；与传统耕作模式相比，保护性耕作土壤的含水率及地表温度较高，且地表粗糙度大、土壤风蚀量小；在所有处理中，留茬全覆盖模式的防治风蚀效果最佳。

The Influence of Straw Stubble Mulch on Soil Effect of Water and Temperature and Wind Erosion

In order to find the best suitable conservation tillage patterns for Liaohe River in Northeast plain, with the traditional tillage as the control, we explored the effect of different straws stubble mulch on soil moisture content, soil temperature and wind erosion. The results show that different mulching modes had different effects on soil moisture and soil temperature and wind erosion. Compared with the traditional tillage, the water content and the surface temperature is higher in conservation tillage soil, and the surface was more rough, soil erosion amount was smaller;in all treatments, the model of straws stubble mulch and complete coverage has the best effect to resist wind erosion.