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中国农学通报 ›› 2015, Vol. 31 ›› Issue (27): 253-257.doi: 10.11924/j.issn.1000-6850.casb15070070

所属专题: 农业气象

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

气候变化对陇东塬区界限温度和作物种植结构的影响分析

杜军,刘英   

  1. 甘肃省庆阳市气象局,甘肃省庆阳市气象局
  • 收稿日期:2015-07-13 修回日期:2015-07-31 接受日期:2015-08-13 出版日期:2015-09-23 发布日期:2015-09-23
  • 通讯作者: 杜军
  • 基金资助:
    国家级公益性行业 (气象) 科研专项 (重大专项) “干旱气象科学研究——我国北方干旱致灾过程及机理” (GYHY201506001)。

Impact Analysis of Climate Change on the Boundary Temperature and Crop Planting Structure in Eastern Gansu Province

  • Received:2015-07-13 Revised:2015-07-31 Accepted:2015-08-13 Online:2015-09-23 Published:2015-09-23

摘要: 为了应对气候变化对现代农业生产的影响, 利用西峰 1971—2014年连续 44年气象资料及作物资料, 分析气候变化对陇东塬区界限温度以及作物种植结构的影响。结果表明: 44年来 0、 10、 15℃界限温度的初日都有提前的趋势, 终日都有推后的趋势; 各界限温度的间隔天数和积温都呈增加趋势。0℃初终日期间天数增加, 生长期延长, 种植北界扩展, 使农业结构向多元化发展。10℃初终日期间天数、 积温的增加, 使农田的复种指数提高, 单位土地面积上的产量增加, 线性倾向率为 472.3 kg/(hm2·10 a)。各界限温度间的积温增加, 加剧了气候暖干化发展。

关键词: 皋茶, 皋茶, 保健茶, 研制, 抗氧化活性

Abstract: In order to deal with the influence of climate change on modern agricultural production, the impact of climate change on the boundary temperature and crop planting structure in eastern Gansu Province was analyzed with meteorological data and crop data of Xifeng from 1971 to 2014. The results showed that, in the 44 years, the beginning day of limit temperature 0℃, 10℃ and 15℃ all had an advancing trend, while the ending day had a postponing trend. The interval days and accumulated temperature of all the boundary temperatures increased. The number of days between the beginning and the ending day of 0℃ increased, the growth period was prolonged, the north boundary of planting was extended, and the agricultural structure was developed in a diversified way. The number of days between the beginning and the ending day of 10℃ and the increase of accumulated temperature caused the increase of the multiple crop index, increased the yield per unit land area and the linear trend rate was 472.3 kg/(hm2·10 a). The accumulated temperature between each boundary temperature increased, which caused a dry weather.