新疆石河子地区沙漠增温效应对绿洲农业影响的研究

由于沙漠 ,绿洲 ,空气的比热等热性能不同 ,形成沙漠夏季温度明显高于绿洲 ,进而对绿洲地区增温 ,称沙漠增温效应。石河子地区 1 0 0 km范围内沙漠对绿洲的增温平均 1 .76℃ ( 1～ 2℃ ) ;根据绿洲距沙漠的远近与气温间存在的线性关系 ,回归方程为 :y=2 7.5 2 97- 0 .0 335 x。 r=- 0 .881 3*。沙漠增温效应对绿洲农业有多方面作用 ,形成夏季富照高温、秋季大日较差以及促成棉花在夏季的“冷害”等 ,深刻地影响绿洲特色农业、栽培技术及人们生活

Studies on the Affection of Improving Temperature Effect of Desert on Oases Agriculture in Shi Hezi Region

Due to diffierent properties of the heat of desert and oases and atmosphere,the temperature in desert is obviously higher than oases in summer,further,it can improve the temperature in oasis regions,so called improving temperature effect of desert.The added temperature is average 1.76℃ about the scope of 100km in regions of Shi Hezi; according to the linear relations between the distances from oasis to desert and air temperature,the regression equation is as below: y=27.5297-0.0335x, r=-0.8813 * The results of this kind of effect are:higher-temperature and full-illumination in summer;bigger temperature difference between day and night;and cold damage to cotton in summer.It profoundly affect oasis characteritic agriculture,cultivation technique and people's life.