卓资县从1973年开始,经过连续七年综合性防治,到79年基本控制和基本消灭了地方性甲状腺肿,患病率由40％下降到3％。一般情况该县位于阴山山脉大青山、蛮汗山区,海拔1,200～2,320米,境内丘陵起伏、群山重迭,分别占46.8％、48％。气温寒冷,年均2℃,十年九旱,年均降雨量406.1毫米,农作物以莜麦、小麦、土豆为主。灌 Zhuozi County since 1973, after seven consecutive comprehensive prevention and control, to 79 basic control and the basic elimination of endemic goiter, the prevalence rate from 40% to 3%. General situation The county is located in the Yinshan Mountains Daqingshan, Manhan Karst mountains, 1,200 to 2,320 meters above sea level, territory hilly, overlapping mountains, accounting for 46.8%, 48%. The temperature is cold, with an average annual 2 ℃, ten years of nine drought, the average annual rainfall of 406.1 mm, crops with oats, wheat, potatoes dominated. Irrigation