首页 | 本学科首页   官方微博 | 高级检索  
     检索      

气候变化背景下东北三省主要作物典型物候期变化趋势分析
引用本文:李正国,杨鹏,唐华俊,吴文斌,陈仲新,周清波,邹金秋,张莉.气候变化背景下东北三省主要作物典型物候期变化趋势分析[J].中国农业科学,2011,44(20):4180-4189.
作者姓名:李正国  杨鹏  唐华俊  吴文斌  陈仲新  周清波  邹金秋  张莉
作者单位:1.中国农业科学院农业资源与农业区划研究所/农业部资源遥感与数字农业重点开放实验室
基金项目:国家“973”计划项目,国家自然科学基金项目,中央级公益性科研院所专项资金项目
摘    要: 【目的】分析气候变化背景下东北三省主要作物类型(水稻、玉米、春小麦和大豆)典型物候期(出苗期、抽穗期和成熟期)的变化趋势。【方法】应用气候倾向率(θ)确定农业气候资源特征和典型物候期的变化趋势与整体对应关系。【结果】近20年来,东北三省大部分地区≥10℃初日出现了提前趋势,初霜日不断推迟,温度生长期天数持续增加,≥10℃积温总体呈升高趋势。在此背景下,水稻和玉米均出现了出苗期提前(0.04<θ<0.55 d?a-1和0.04<θ<0.35 d?a-1)、成熟期推后(0.09<θ<0.35 d?a-1和0.23 <θ<0.38 d?a-1)、以及生育期延长(0.31<θ<1.26 d?a-1和0.11<θ<0.57 d?a-1)的趋势;大豆则表现为出苗期提前(0.01<θ<0.61 d?a-1)、成熟期提前(0.18<θ<0.19 d?a-1)、生育期缩短(0.06<θ<0.17 d?a-1)的趋势;而春小麦典型物候期的变化趋势不明显。【结论】东北三省农业气候资源变化使作物生长期内温度适宜程度偏向好转,总体上有利于早种晚收、生育期长的作物品种的推广种植。

关 键 词:作物物候期  气候变化  生育期  东北三省
收稿时间:2011-01-05

Trend Analysis of Typical Phenophases of Major Crops Under Climate Change in the Three Provinces of Northeast China
LI Zheng-guo,YANG Peng,TANG Hua-jun,WU Wen-bin,CHEN Zhong-xin,ZHOU Qing-bo,ZOU Jin-qiu,ZHANG Li.Trend Analysis of Typical Phenophases of Major Crops Under Climate Change in the Three Provinces of Northeast China[J].Scientia Agricultura Sinica,2011,44(20):4180-4189.
Authors:LI Zheng-guo  YANG Peng  TANG Hua-jun  WU Wen-bin  CHEN Zhong-xin  ZHOU Qing-bo  ZOU Jin-qiu  ZHANG Li
Institution:LI Zheng-guo,YANG Peng,TANG Hua-jun,WU Wen-bin,CHEN Zhong-xin,ZHOU Qing-bo,ZOU Jin-qiu,ZHANG Li(Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences /Key Laboratory of Resources Remote Sensing and Digital Agriculture,Ministry of Agriculture,Beijing 100081)
Abstract:【Objective】 The objective of this research is to analyze the phenophases (including the stages of seeding, heading and maturity) changes of rice, maize, spring wheat and soybean in three provinces of Northeast China. 【Method】Annual slope change rate (θ) was computed to evaluate the temporal trend and the relationship between agroclimate and phenophases. 【Result】Over the past 20 years, the timing of first effective temperature date (T≥10℃) was advanced, the first frost date was postponed, the growth period was continually extended and the accumulated temperature (T≥10℃) was increased in most area of the three provinces. Under this background, the temporal trend of phenophases of both rice and maize showed an advanced seeding stage (0.04<θ<0.55 d?a-1 and 0.04<θ<0.35 d?a-1), a postponed maturity stage (0.09<θ<0.35 d?a-1 and 0.23<θ<0.38 d?a-1) and an extended length of growth period (0.31<θ<1.26 d?a-1 and 0.11<θ<0.57 d?a-1). By contrast, temporal trend of soybean phenophases was different and characterized by an advanced seeding stage (0.01<θ<0.61 d?a-1), a maturity stage (0.18<θ<0.19 d?a-1), and a shortened growth period (0.06<θ<0.17 d?a-1). As for spring wheat, there was no obvious temporal change for the phenophases.【Conclusion】Climate change resulted in the increase of temperature suitability for crops, which could benefit from an early seeding stage, a late maturity stage and a long growth period.
Keywords:crop phenophases  climate change  growth period  the three provinces of Northeast China  
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《中国农业科学》浏览原始摘要信息
点击此处可从《中国农业科学》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号