1951–2010年中国农业水热气候条件的时空变化（英文）

编号 zgly0001584442

文献类型 期刊论文

文献题名 1951–2010年中国农业水热气候条件的时空变化（英文）

作者 崔耀平  宁晓菊  秦耀辰  李旭  陈友民 

作者单位 CollegeofEnvironmentandPlanning  KeyLaboratoryofGeospatialTechnologyforMiddleandLowerYellowRiverRegions  HenanCollaborativeInnovationCenterforCoordinatingIndustrialization  UrbanizationandModernizationinCenterEconomicZone  Henan 

母体文献 Journal of Geographical Sciences 

年卷期 2016年06期

年份 2016 

分类号 S162 

关键词 temperature  precipitation  accumulatedtemperature  agriculturalcondition  China 

文摘内容 Based on the daily observation data of 824 meteorological stations during 1951-2010 released by the National Meteorological Information Center, this paper evaluated the changes in the heat and moisture conditions of crop growth. An average value of ten years was used to analyze the spatio-temporal variation in the agricultural hydrothermal conditions within a 1 km2 grid. Next, the inter-annual changing trend was simulated by regression analysis of the agricultural hydrothermal conditions. The results showed that the contour lines for temperature and accumulated temperatures(the daily mean temperature ≥0°C) increased significantly in most parts of China, and that the temperature contour lines had all moved northwards over the past 60 years. At the same time, the annual precipitation showed a decreasing trend, though more than half of the meteorological stations did not pass the significance test. However, the mean temperatures in the hottest month and the coldest month exhibited a decreasing trend from 1951 to 2010. In addition, the 0°C contour line gradually moved from the Qinling Mountains and Huaihe River Basin to the Yellow River Basin. All these changes would have a significant impact on the distribution of crops and farming systems. Although the mechanisms influencing the interactive temperature and precipitation changes on crops were complex and hard to distinguish, the fact remained that these changes would directly cause corresponding changes in crop characteristics.