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山东省黄县下丁家大队,位于胶东半岛罗山北麓的土石山区。解放前饱受地主、富农的剥削压迫,又受自然灾害的袭击欺凌。当地民谣有“天地自带三分灾,破土露出石头来”,是个灾多很穷的地方。那里旱灾的威胁最大,主要原因是:年雨量(平均619毫米)变异大,年内分布不均匀;土层薄,沙性大,不保水。根据黄县县志记载:“明末清初,发生过三次大旱,二至六月无雨,火龙昼见,千里无谷,道草似焚”。此后,也经常出现不同程度的旱灾。干旱不仅威胁农业生产,有些村庄人畜用水也很困难。1953年办起农业社,1955年开始
Huang County, Shandong Province under the Ding brigade, located in Jiaodong Peninsula Luoshan north of the rocky mountain. Before the liberation of landowners, rich peasants exploitation oppression, but also by natural disasters, bullying. Local folk have “heaven and earth bring three disaster, broken earth exposed stone”, is a disaster where many poor. The main threats to drought there are mainly due to the large annual variations (619 mm in average), large variations in the year and uneven distribution throughout the year. The soil is thin and sandy with no water retention. According to the records of Huangxian County: "During the late Ming and early Qing Dynasty, three major drought occurred and there was no rain from February to June. The fire dragon saw it during the day and there was no valley. Since then, different degrees of drought have also been frequent. Drought not only threatens agricultural production, but also makes it difficult for people and livestock to use water in some villages. Agricultural Association was established in 1953, beginning in 1955