我国春玉米物候变化趋势及其与水热条件的关系

崔耀平; 路婧琦; 刘素洁; 李楠; 肖登攀; 刘小萌; 石欣瑜; 蒋琳

doi:10.13961/j.cnki.stbctb.2018.02.014

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我国春玉米物候变化趋势及其与水热条件的关系

试验研究

- 我国春玉米物候变化趋势及其与水热条件的关系
- Phenology Variations of Spring Maize and Their Correlations with Hydrothermal Conditions in China
- 水土保持通报 2018年38卷第2期页码：82-86
- 作者机构：
  
  1. 河南大学黄河中下游数字地理技术教育部重点实验室,河南,开封,475004
  2. 河北省科学院地理科学研究所,河北,石家庄,050011
  3. 洛阳师范学院国土与旅游学院,河南,洛阳,471934
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目“京津冀地区土地利用变化对区域气温的调节机制和贡献率研究”（41401504）;“区域下垫面和温室气体变化对气温的调节效应研究”（41671425）;河南大学农业与农村可持续发展研究所科研项目
- DOI：10.13961/j.cnki.stbctb.2018.02.014
  中图分类号：
- 纸质出版：2018
- 稿件说明：
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崔耀平, 路婧琦, 刘素洁, 等. 我国春玉米物候变化趋势及其与水热条件的关系[J]. 水土保持通报, 2018,38(2):82-86.

CUI Yaoping, LU Jingqi, LIU Sujie, et al. Phenology Variations of Spring Maize and Their Correlations with Hydrothermal Conditions in China[J]. Bulletin of Soiland Water Conservation, 2018, 38(2): 82-86.
崔耀平, 路婧琦, 刘素洁, 等. 我国春玉米物候变化趋势及其与水热条件的关系[J]. 水土保持通报, 2018,38(2):82-86. DOI： 10.13961/j.cnki.stbctb.2018.02.014.

CUI Yaoping, LU Jingqi, LIU Sujie, et al. Phenology Variations of Spring Maize and Their Correlations with Hydrothermal Conditions in China[J]. Bulletin of Soiland Water Conservation, 2018, 38(2): 82-86. DOI： 10.13961/j.cnki.stbctb.2018.02.014.

摘要

[目的]分析春玉米关键物候的时空变化情况，并探讨气候与物候对应的相关关系，为从整体上把握我国农业生产状况、评估气候变化下的作物生产和适应情况提供科学依据。[方法]利用空间分析方法找到距离作物物候观测站点最邻近的气象站点，并采用经典统计学方法，研究春玉米物候变化趋势及其与水热条件的关系。[结果]①2000-2013年中国春玉米生育期内大部分站点的降水量增加，而出现升、降温趋势的站点数基本相同。②春玉米生育期历时与平均温呈负相关，平均温每升高1℃，春玉米整个生育期将缩短4.58 d；而春玉米生育期历时基本不受到降水量变化的影响。[结论]温度负相作用于春玉米的生育期历时，但是温度的升、降温趋势在全国站点上并不统一。

Abstract

[Objective] Analyzing the temporal and spatial changes of key phenological periods of spring maize and exploring the relationships between phenology and hydrothermal factors

to provide scientific references for understanding production and adaption of crop in the background of climate change.[Methods] Data of meteorological stations that are mostly closed to our phenological observation sites were used. Classical statistics were used to analyze the variation trend of phenology of spring maize and the relationships between phenology and hydrothermal conditions.[Results] ① Meteorological stations were observed having roughly equal increased and decreased trends during the growth period of spring maize

however

the precipitation showed an increased trend in most stations. ② There was a negative correlation between the length of growth period(GP) of spring maize and mean air temperature during 2000-2013. The length of GP was observed been affected by air temperature and it was shortened by 4.58 days when air temperature rose by 1.0℃

it was hardly affected by precipitation.[Conclusion] Air temperature showed a negative effect on the length of growth period. Warming and cooling trends of nationwide meteorological stations were both observed during 2000-2013.

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