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呂和同志所在的甘南县太平大队位于黑龙江省西北部,在大兴安岭山脚下,是个山石区。該大队的耕地分布在岭崗坡谷之中,山下耕地土层40~50厘米,山上30厘米左右。年降雨量为400~500毫米,有60%集中在7、8月份;4、5月份仅占全年雨量的7%。蒸发量又大,常高出同期降雨量的10倍。春季多西北风,加以土层薄,所以十年九旱。无霜期仅有110~120天。由于春旱抓
The Gannan County Taiping Brigade where Lu and Comrades are located is located in the northwestern part of Heilongjiang Province. At the foot of the Greater Hinggan Mountains, it is a rocky area. The brigade’s arable land is distributed among the hills of Linggang. The soil of arable land under the mountain ranges from 40 to 50 centimeters and the mountain is about 30 centimeters. Annual rainfall of 400 ~ 500 mm, 60% concentrated in July and August; April and May accounted for only 7% of the annual rainfall. Evaporation and large, often 10 times higher than the same period rainfall. Spring and more northwest wind, to thin soil, so nine drought ten years. Frost-free period of only 110 to 120 days. As spring drought caught