中文摘要：

在中国气象局兰州干旱气象研究所定西气象和生态环境试验站,利用开放式红外增温系统设置增加0℃（对照）、1℃、2℃3个温度梯度,模拟田间增温对春小麦生长发育、产量及产量构成因素的影响.结果表明：冠层温度增加1-2℃,春小麦的全生育期比对照缩短7-11 d.生育前期增温使株高增高,叶面积指数增大;从拔节期开始增温使株高和叶面积指数降低,且增温2℃处理的效应大于增温1℃处理.温度升高导致叶绿素含量降低,尤其是灌浆后期到乳熟期.增温1-2℃,产量较对照降低25.4%-45.5%,主要是由于穗粒数和穗粒质量显著减少.增温处理明显降低了春小麦田间土壤贮水量,0-100 cm土壤贮水消耗量随温度的增加呈逐渐增加趋势,而在100 cm以下深层土壤变化趋势不明显.

英文摘要：

A field infrared temperature-increasing simulation experiment was conducted to investigate the effects of air temperature increases（ 0,1 and 2 ℃） on growth,development and yield of spring wheat at the Dingxi Arid Meteorology and Ecological Environment Experimental Station of the Institute of Arid Meteorology of China Meteorological Administration. The results showed that the growth period of spring wheat was shortened by 7-11 d when the temperature increased by 1-2 ℃.The plant height and leaf area index increased at early growth stage,decreased after entering the jointing stage,and warming 2 ℃ had a higher effect than warming 1 ℃. Warming treatment induced an obvious decrease in chlorophyll content,especially from late grain filling stage to milk ripe stage.Compared with the control,increasing temperature by 1- 2 ℃ decreased the spring wheat yield by25.4%- 45.5%,mainly due to obvious decreases in number of grains and grain mass per panicle.Water consumption of 0-100 cm soil horizons increased with the increase of temperature,while the variation tendency of water consumption of 100-160 cm soil horizons was not obvious.