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本文分析了干旱对内蒙农牧业生产的影响,指出:(一)全区干旱范围大,属于半干旱、干旱、及极干旱的面积占全区总面积的3/5以上;干旱出现的机率很大,平均有三年两旱,七年左右一大旱的规律;干旱持续时间长,最长连旱年数可达七年之久。因此,干旱是自治区农牧业生产上的主要自然灾害。(二)自治区旱作农业的作物都在严重缺水条件下生长,而且年降水变率大,西部地区多数在30％以上。这是自治区农业产量低而不稳的根本原因。(三)干旱对牧业生产影响也很大,不仅决定着草场类型分布,产草量高低,而且也决定着牲畜种类的地理分布。最后并对干旱灾害的对策提出几条合理建议。
The paper analyzes the impact of drought on the livestock production in Inner Mongolia and points out that: (1) the drought area in the whole region is large and belongs to semi-arid, arid and extremely arid areas, accounting for more than 3/5 of the total area; the probability of drought Large, with an average of three years and two dry, seven years or so a law of drought; drought lasts for a long time, the longest number of consecutive years of drought up to seven years. Therefore, drought is the major natural disaster in the production of agriculture and animal husbandry in the autonomous region. (2) Crops under dry farming in autonomous regions are growing under severe water shortage conditions, and the annual precipitation rate is large with the majority in the western region being above 30%. This is the fundamental reason for the low and unstable agricultural output in the autonomous region. (3) Drought has great impact on animal husbandry production, which not only determines the type of grassland and the level of grass production, but also determines the geographical distribution of livestock species. Finally, some suggestions on the countermeasures of drought disaster are put forward.