辽宁水稻气候适宜度日尺度评价研究
发布时间：2019-05-30 03:13
【摘要】：时间尺度的选择是水稻与气候关系研究中的关键环节。为评价中短时灾害情景下的水稻气候适宜性,本文以辽宁省1961-2010年逐日气温、日照时数为影响因子,结合气候产量采用通径分析方法确定各因子权重,进而构建水稻气候适宜度日尺度模型及不同气候区的适宜度等级评价指标。通过与旬尺度模型对比,阐明不同时间尺度模型在中短时灾害天气影响下的气候适宜度状况。结果表明:(1)气候适宜度日尺度评价模型能够反映水稻生长的气候条件及对其生长发育的影响,水稻营养生长阶段的气候适宜度与株高的相关系数(R)为0.722(P0.01);生殖生长阶段的气候适宜度与水稻产量的相关系数(R)为0.669(P0.01);(2)根据气候适宜度评价指标确定水稻气候适宜度等级,揭示在突发洪涝灾害的情况下,日尺度比旬尺度模型更能诠释水稻生长的气候适宜度状况。
[Abstract]:The choice of time scale is the key link in the study of the relationship between rice and climate. In order to evaluate the climatic suitability of rice under medium and short-term disaster scenarios, the daily temperature and sunshine hours from 1961 to 2010 in Liaoning Province were taken as the influencing factors, and the weight of each factor was determined by path analysis method combined with climate yield. Furthermore, the diurnal scale model of rice climate suitability and the evaluation index of suitability grade in different climatic areas were constructed. By comparing with the ten-day scale model, the climatic suitability of different time scale models under the influence of medium and short-term disaster weather is expounded. The results showed that: (1) the diurnal scale evaluation model of climate suitability could reflect the climatic conditions of rice growth and its effects on the growth and development of rice (Oryza sativa L.). The correlation coefficient between climate suitability and plant height in vegetative growth stage of rice was 0.722 (P01). The correlation coefficient between climate suitability and rice yield in reproductive growth stage was 0.669 (P01). (2) according to the evaluation index of climate suitability, the climatic suitability grade of rice was determined, which revealed that the daily scale was more able to interpret the climate suitability of rice growth than the ten-day scale model in the case of sudden flood and waterlogging.
【作者单位】： 中国气象局沈阳大气环境研究所;沈阳市气象局;
【基金】：中央级公益性科研院所基本科研项目(2015IAE-CMA04) 公益性行业(气象)科研专项(GYHY201306036) 国家自然科学基金项目(41405109)
【分类号】：S162;S511
本文编号：2488467
[Abstract]:The choice of time scale is the key link in the study of the relationship between rice and climate. In order to evaluate the climatic suitability of rice under medium and short-term disaster scenarios, the daily temperature and sunshine hours from 1961 to 2010 in Liaoning Province were taken as the influencing factors, and the weight of each factor was determined by path analysis method combined with climate yield. Furthermore, the diurnal scale model of rice climate suitability and the evaluation index of suitability grade in different climatic areas were constructed. By comparing with the ten-day scale model, the climatic suitability of different time scale models under the influence of medium and short-term disaster weather is expounded. The results showed that: (1) the diurnal scale evaluation model of climate suitability could reflect the climatic conditions of rice growth and its effects on the growth and development of rice (Oryza sativa L.). The correlation coefficient between climate suitability and plant height in vegetative growth stage of rice was 0.722 (P01). The correlation coefficient between climate suitability and rice yield in reproductive growth stage was 0.669 (P01). (2) according to the evaluation index of climate suitability, the climatic suitability grade of rice was determined, which revealed that the daily scale was more able to interpret the climate suitability of rice growth than the ten-day scale model in the case of sudden flood and waterlogging.
【作者单位】： 中国气象局沈阳大气环境研究所;沈阳市气象局;
【基金】：中央级公益性科研院所基本科研项目(2015IAE-CMA04) 公益性行业(气象)科研专项(GYHY201306036) 国家自然科学基金项目(41405109)
【分类号】：S162;S511
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