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| 气候变化对北方冬麦区冬小麦生育期的影响 | |
| 引用本文： | 姬兴杰,朱业玉,刘晓迎,熊淑萍,王鸽.气候变化对北方冬麦区冬小麦生育期的影响[J].中国农业气象,2011,32(4):576-581. |
| 作者姓名： | 姬兴杰 朱业玉 刘晓迎 熊淑萍 王鸽 |
| 作者单位： | 1. 河南省气候中心,郑州,450003 2. 河南省修武县气象局,修武,454350 3. 河南农业大学农学院,郑州,450002 4. 中国气象局成都高原气象研究所,成都,610071 |
| 基金项目： | 公益性行业(气象)科研专项，公益性行业(农业)科研专项 |
| 摘 要： | 利用北方冬麦区18个农业气象观测站1983-2005年气象资料和冬小麦生育期观测资料,采用统计分析方法,分析了该区域气象因素和冬小麦生育期变化特征,以及气候变化对生育期的影响。结果表明：1983-2005年,北方冬麦区降水量、日照时数和日较差的变化趋势不明显;而气温呈明显增加,以冬春季增加最为明显,最低气温的增幅较大;从总体上看,冬小麦播种期和返青期的变化趋势不明显,抽穗期和成熟期分别以0.46d/a和0.27d/a的趋势显著提前;在空间分布上,播种期和返青期的变化趋势差异不显著,而抽穗期和成熟期差异显著,特别是抽穗期表现出随纬度增加提前趋势变小的特点。相关分析表明：冬小麦关键生育期均表现为与日照时数和日较差呈显著正相关;与气温均呈显著负相关;除成熟期与5月降水总量相关性不显著外,其余均表现出显著负相关;从整体上看,最低气温升高是北方冬麦区冬小麦生育期提前的主要原因。北方冬麦区以气候变暖为主要特征的气候变化特征较为明显,其对冬小麦生育期的影响较为显著,研究结果可为北方冬麦区的农作物生产积极应对气候变化提供参考依据。 |
| 关 键 词： | 北方冬麦区 气候变化 冬小麦生育期 |
Impacts of Climate Change on the Winter Wheat Growth Stages in North China |
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| JI Xing-jie,ZHU Ye-yu,LIU Xiao-ying,XIONG Shu-ping,WANG Ge.Impacts of Climate Change on the Winter Wheat Growth Stages in North China[J].Chinese Journal of Agrometeorology,2011,32(4):576-581. | |
| Authors: | JI Xing-jie ZHU Ye-yu LIU Xiao-ying XIONG Shu-ping WANG Ge |
| Institution: | JI Xing-jie1,ZHU Ye-yu1,LIU Xiao-ying2,XIONG Shu-ping3,WANG Ge4(1.Henan Climate Centre,Zhengzhou 450003,China,2.Xiuwu Meteorological Bureau,Xiuwu 454350,3.College of Agronomy,Henan Agricultural University,Zhengzhou 450002,4.Institute of Plateau Meteorology,CMA,Chengdu 610071) |
| Abstract: | Based on the meteorological data from 18 agro-meteorological stations and observed data of winter wheat growth stages during 1983-2005 in North China,the change of meteorological factors and growth stages of winter wheat and the impacts of climate change on growth stages were analyzed by using statistical analysis method.The results showed the annual variations of total precipitation,sunshine hours and diurnal temperature range were not obvious,the temperature increased significantly,especially in spring an... |
| Keywords: | Winter wheat region of North China Climate change Winter wheat growth stages |
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