西吉县马铃薯产业发展布局农业气候评价

INFORMATION OF AGRICULTURAL SCIENCE AND TECHNOLOGY(2009)

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Abstract
<正>1气候、市场变化与马铃薯农业气候区划地处西北东部的宁夏南部山区西吉县气候冷凉干燥,多年来马铃薯种植以晚熟品种为主,且产量受降水等气象因素制约极不稳定。根据对气象资料的统计分析,近10a来西吉县在气候变暖背景下年平均气温升高了1℃,≥10℃平均有效积温增加了128.10℃.d,年降水量减少了45.10mm,年降水变率50a由8%增大到
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