河南省丘陵旱区主要分布在西部山区向东平原过渡的中间地带,南北呈细长的弯曲条带状。丘陵旱薄地约一千万亩,摸清该区土壤低产主导因素,采取针对性措施,变低产为中产,乃至高产,对加快河南农业发展步伐具有重要意义。一,丘陵旱区土壤低产的主导因素 1,天气干旱干旱是河南省最普遍,最频繁的气象灾害。据记载;从公元前206年到1949年,在2155年间发生旱灾1056次,夏、商、周之灭 Hilly and arid regions of Henan Province are mainly distributed in the middle of the transition from the western mountainous region to the eastern plain, with slender curved bands in the north and south. Hilly dry land of about 10 million mu to find out the leading factor in low-yielding soils in the region to take targeted measures to become low-yielding middle-class and even high-yielding, to accelerate the pace of agricultural development in Henan is of great significance. First, the dominant factor in the hilly arid land productivity 1, the weather arid and drought is the most common and most frequent meteorological disasters in Henan Province. It is recorded that from 206 BC to 1949, there were 1,056 drought events in 2155, and the summer,