基于2004 — 2016年宁夏统计年鉴，分析了宁夏小麦播种面积、产量及线性趋势。结果表明，宁夏小麦种植面积由2004年的29.90万hm2下降到2016年的12.62万hm2，降幅54.9%；总产量由80.42万t下降到40.89万t，降幅49.2%。宁夏5市小麦播种面积和产量均呈下降趋势，播种面积降幅最大的是固原市，其次是吴忠市；产量降幅最大的是吴忠市，其次是固原市。播种面积变幅较大的是石嘴山市平罗县、银川市永宁县、吴忠市同心县、固原市原州区、中卫市海原县。2004、2016年宁夏小麦种植面积和产量的分级比较表明，同心县以南种植面积相对较大，产量较低，永宁县、贺兰县等引黄灌区种植面积次之，产量较高；盐池县种植面积和产量均最小。线性趋势表明，吴忠市(播种面积和产量)和固原市(产量)呈不显著下降趋势，其他各市播种面积和产量均呈现显著或极显著下降趋势。

Based on the statistical yearbook of Ningxia from 2004 to 2016， analyzing the tendency of planting area and yield and linear trend in wheat crop. The results showed that the planting areas from 299 to 126.2 thousand hectare from 2004 to 2016， decreased 54.9%. While the total yield from 804.2 to 408.9 thousand tons from 2004 to 2016， decreased 49.2%.The planting area and yield of wheat in the five cities of Ningxia showed a decline. The largest decline in planting area was in Guyuan City， followed by Wuzhong City； the largest decline in output was Wuzhong City， followed by Guyuan City. The counties with large changes in the planting area in the five Cities were Pingluo County of Shizuishan City， Yongning County of Yinchuan City， Tongxin County of Wuzhong City， Yuanzhou District of Guyuan City， and Haiyuan County of Zhongwei City. The grading comparison of planting area and yield of wheat in Ningxia in 2004 and 2016 shows that the planting area is relatively large in the south of Tongxin County， and the yield lower. The planting area of the Yellow River irrigation area was second， such as Yongning and Helan Counties etc， and the yield higher. Both planting area and yield were minimal of Yanchi County.The linear trend indicates that the planting area and yield of Wuzhong City and the yield of Guyuan City showed no significant decrease trend， while the planting area and yield of others Cities showed a significant or extremely significant decrease trend.

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宁夏农业育种专项(2013NYYZ02)；宁夏农林科学院科技创新先导资金(NKYG-17-30 )。