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采用作物生长动态统计模型,对渭干河-库车河三角洲绿洲冬小麦、夏玉米和棉花种植的光合、光温、光温水、光温土和光温水土生产潜力进行计算和分析。分析结果显示:研究区冬小麦、夏玉米和棉花种植的光温生产潜力远大于实际生产力,分别实际生产力的161.06%,134.15%和196.71%,光热资源丰富;光温土生产潜力与实际生产力较接近,分别为冬小麦、夏玉米和棉花实际生产力的80.40%、66.97%和98.20%,土壤肥力限制因子很大;光温水和光温水土生产潜力都远小于实际生产力,分别为冬小麦、夏玉米和棉花实际生产力的10.36%和5.17%、8.63%和4.31%、12.68%和6.31%%,水是制约作物气候生产潜力的最关键因子,没有灌溉,颗粒无收。渭干河-库车河三角洲绿洲光热资源是作物气候生产力最突出的优势,土壤水肥条件是限制作物气候生产力的主要可控因子,改善土壤水肥条件是实现作物气候生产潜力的有效途径。
Using the dynamic model of crop growth, the potential productivity of photosynthesis, light and temperature, light and temperature water, light and temperature soil and light and temperature for planting winter wheat, summer maize and cotton in the Weigan-Kuqa River delta oasis was calculated and analyzed. The results showed that the potential of light and temperature production in winter wheat, summer maize and cotton planting in the study area was far greater than the actual productivity, 161.06%, 134.15% and 196.71% of the actual productivity, respectively, with abundant light and heat resources. The production potential and actual productivity Which are 80.40%, 66.97% and 98.20% of the actual productivity of winter wheat, summer maize and cotton, respectively. The limiting factor of soil fertility is very large. The potential productivity of light and temperature water and light and water are far less than the actual productivity, namely winter wheat, summer maize and cotton The actual productivity is 10.36% and 5.17%, 8.63% and 4.31%, 12.68% and 6.31 %%, respectively. Water is the most critical factor that restricts the potential productivity of crop climate. Without irrigation, no crop is collected. Weigan - Kuqa Delta oasis light and heat resources is crop climate productivity is the most prominent advantages, soil water and fertilizer conditions is to limit crop climate productivity of the main controllable factors, improve soil water and fertilizer conditions is an effective way to achieve crop climate potential.