晋西北干旱地区保护性耕作的研究

Research of Protecting Cultivation in the Northwest Arid Area of Shanxi Province

针对晋西北旱作农业的自然条件(干旱、降水少、土壤贫瘠、耕作粗放、水土流失、风蚀较为严重)的特点,以改变耕作模式为方法,以如何改良农田,减少农田水蚀、风蚀,增加作物产量为主攻目标,通过连续6年的试验,从而得出实施保护性耕作是旱地区减少水土流失、改善生态环境、增加土壤蓄水能力,提高降水利用率、增加土壤有机质的有效途径,并对旱地区农业发展具有良好的经济、社会和生态效益。

According to the characteristic of the natural conditions of agriculture in arid area in Northwest of Shanxi Province(arid, little rainfall, soil barren, cultivation extensive, soil erosion, comparatively serious wind erosion), main objectives of the nesearch were how to improve farmland, reduce farmland water erosion, and wind erosion, increase the output of crop.After 6 years consecutive experiments, we have made it a useful method to implement protecting cultivation in the arid areas to reduce soil erosion, improve ecological environment, increase soil ability of conservation storage, improve the water conservancy of falling with the rate, and increase the soil organic matter. And so we can say the protecting cultivation will benefit the arid area's agricultural development in economy, society and ecosystem.