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朝阳地区位于辽宁省西部,历史上素有“十年九旱”之称,降水量少而集中,所以干旱是制约朝阳地区经济发展的主要自然因素。根据辽宁省朝阳地区1961~2000年历年月降水量的实测资料,用降水距平百分率、Z指数方法分析朝阳干旱特征,证明:根据降水资料来判断朝阳地区干旱特征是比较准确的。并提出若干抗旱措施-大力推广节水灌溉技术、实施集水节灌农业、大力加强干旱灾害的监测、合理利用水资源。
Located in the western part of Liaoning Province, the Chaoyang area is known as the “nine years of drought in ten years”, with less and more precipitation. Therefore, the drought is the main natural factor restricting the economic development in the Chaoyang area. According to the measured data of monthly precipitation from 1961 to 2000 in Chaoyang area of Liaoning Province, the characteristics of the drought in the Chaoyang area are analyzed by means of precipitation anomaly percentage and Z index method. It is proved that it is more accurate to judge the characteristics of drought in Chaoyang area based on precipitation data. And put forward a number of drought-relief measures - vigorously promote water-saving irrigation techniques, implement catchment and irrigated agriculture, vigorously strengthen the monitoring of drought disasters and make rational use of water resources.