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spring phenophase
相关语句
  春季物候期
     Relationship between Spring Phenophase Characteristics of Beadtree and Agricultural Threshold Temperature
     苦楝树春季物候期特征及其与农业界限温度关系
短句来源
     If the temperature increased 1℃,spring phenophase in Beijing would advance 2.8-3.6 days.
     平均气温增高1℃,北京春季物候期提前2.8~3.6d。 并估算了未来北京春季物候变化趋势。
短句来源
     Relationship Between Six Trees Spring Phenophase and Temperature in Shengyang
     沈阳6种树木春季物候期与温度之间的关系
短句来源
  “spring phenophase”译为未确定词的双语例句
     (3) the integral regression method was used to analyze the relation between temperature factor and spring phenophase in Beijing.
     (3)用积分回归法作了气温对春季物候影响的统计分析 ,结果说明不同时期的气温波动对物候的影响系数是变化的 ;
短句来源
     It is estimated that spring phenophase will appear earlier in the future 10 years.
     现阶段正处于北京春季物候偏早期的峰区 ,估计未来 10多年春季物候仍持续偏早。
短句来源
  相似匹配句对
     Spring
     春
短句来源
     Spring.
     Spring)水提物中的化学成分。
短句来源
     STATISTIC ANALYSIS ON THE PHENOPHASE OF TREES IN SPRING OF BEIJING
     北京春季的树木物候与气象因子的统计学分析
短句来源
     The effect of spring temperature on phenophase is most important.
     春温波动的影响系数是正的 ,而且愈近该物候出现期 ,其影响系数愈大 ,可以说该时期是这种物候现象的温度敏感期 ;
短句来源
     (2) Phenophase.
     (2)物候表现。
短句来源
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  spring phenophase
In addition, we also examined the link between the spring phenophase, and length and mean temperature of the growing season, and the analyses suggested that they were highly correlated as well.
      
Statistically siginficant correlation was found between the changes of spring phenophase and the temperatures of one or several months before the phenophase onset.
      


For recent years, the research has showed that there is a gradual lengthening of the growing season in the Northern Hemisphere. This inference based on the records of the seasonal signal in atmospheric CO 2, the surface air temperature and the satellite data have yet to be proved by field observation data of land vegetation. Because the plant phenological events, such as flowering, leaf unfolding, leaf coloration and leaf fall, etc, describe objectively the seasonal growth in land vegetation, their occurrence...

For recent years, the research has showed that there is a gradual lengthening of the growing season in the Northern Hemisphere. This inference based on the records of the seasonal signal in atmospheric CO 2, the surface air temperature and the satellite data have yet to be proved by field observation data of land vegetation. Because the plant phenological events, such as flowering, leaf unfolding, leaf coloration and leaf fall, etc, describe objectively the seasonal growth in land vegetation, their occurrence dates can be used to determine the beginning and ending dates of the growing season. This article analyzes the temporal variations in the length of the phenological growing season for last 30 years in 10 natural regions in the Western Germany and finds a trend reverse during the mid 1970s.This finding implicates that the evidence on the lengthening of the growing season in the northern high latitudes could not represent the real situation in the Western Germany. Further analyses show that the time series of the length of the growing season has a negative correlation with the time series of the occurrence date of the spring phenophase that indicates the beginning of the growing season, and a positive correlation with the time series of temperature in January or February. Therefore,the changes in spring phenology and temperature can be used as an earlier indication for detecting the fluctuations in the length of the growing season.

近年的研究指出 ,北半球植被的生长季节正在逐渐延长。这一根据大气二氧化碳浓度季节变化、陆地年平均气温和卫星遥感数据的推断 ,尚有待于利用对地面植被的实际观测资料予以检验。由于植物物候现象如开花、展叶、叶变秋色和落叶等客观地描述了陆地植被的季节性生长状况 ,所以 ,利用树木的物候发生期便可确定生长季节的开始与结束时间。文中分析了德国西部 10个自然区域近 30年来物候生长季节长度的时间波动 ,发现在 2 0世纪 70年代中期存在着一次趋势转折 ,从而表明 ,有关近几十年来北半球高纬地区植被生长季节在逐渐延长的结论 ,并不能代表德国西部的实际情况。进一步的研究显示 ,生长季节时间序列与指示其开始的春季物候发生期时间序列呈负相关关系 ,而与 1月或 2月气温时间序列呈正相关关系 ,由此推断 ,春季物候发生期与气温的变化可以作为检测生长季节长度波动的早期征兆。

Spring phonological change in Beijing in the last 50 years and its response to the climatic change were analyzed. Results show that (1) Spring phonological change in Beijing has interrelationship, synchronism and sequence regularity. (2) There are high correlation between spring pholological phenomenon and annual mean temperature as well as accumulated temperature in growing season. (3) the integral regression method was used to analyze the relation between temperature factor and spring phenophase in Beijing....

Spring phonological change in Beijing in the last 50 years and its response to the climatic change were analyzed. Results show that (1) Spring phonological change in Beijing has interrelationship, synchronism and sequence regularity. (2) There are high correlation between spring pholological phenomenon and annual mean temperature as well as accumulated temperature in growing season. (3) the integral regression method was used to analyze the relation between temperature factor and spring phenophase in Beijing. The effect of spring temperature on phenophase is most important. At that time, the higher the temperature is, the earlier the phenophase occurs and vice versa. It is a therma sensitive stage on spring phenophase. (4) The temporal variation curve of spring phenophase in Beijing shows that at present spring phenophase in Beijing appears earlier. It is estimated that spring phenophase will appear earlier in the future 10 years.

分析了北京近 50年春季物候的变化规律及其对气候变化的响应 ,结果显示 :(1)北京各种春季物候的多年变化具有相关性、同步性、顺序性 ;(2 )各种春季物候现象出现的早晚与春季月份的气温波动有高度相关 ,与生长季的积温和年平均气温的相关系数也较高 ,这说明用物候做农时预报是有科学根据的 ;(3)用积分回归法作了气温对春季物候影响的统计分析 ,结果说明不同时期的气温波动对物候的影响系数是变化的 ;春温波动的影响系数是正的 ,而且愈近该物候出现期 ,其影响系数愈大 ,可以说该时期是这种物候现象的温度敏感期 ;冬温的影响系数是负的 ,说明较冷的冬温有利于打破冬季休眠 ,其值虽然不大 ,但它的生态意义不可忽略 ;(4 )近 50年来 ,北京春季物候经历了 3个周期的早晚振荡 ,近十几年来北京春季物候持续偏早 ,特别是近 10年 ,其偏早天数创历史记录 ,这与北京近年持续的暖冬相一致。现阶段正处于北京春季物候偏早期的峰区 ,估计未来 10多年春季物候仍持续偏早。

Based on the calculation of six plant phenology in spring in Beijing,a expresentative index of spring phenology,was used to analyze response model of plant phenology to temperature changes.According to changing trends of temperature,temperature and phenology data in historical periods were categorized to four series with the same length of time slice.Prominence differences of two series were verified by u-test.Response model and mechanisms of phenophase on temperature changes were analyzed in different series...

Based on the calculation of six plant phenology in spring in Beijing,a expresentative index of spring phenology,was used to analyze response model of plant phenology to temperature changes.According to changing trends of temperature,temperature and phenology data in historical periods were categorized to four series with the same length of time slice.Prominence differences of two series were verified by u-test.Response model and mechanisms of phenophase on temperature changes were analyzed in different series with different models of temperature changes.It had been concluded that the response of phenophase advance or delay to temperature change was nonlinear.At the same amplitude of temperature change,phenophase delay amplitude caused by temperature decrease was less than phenophase advance amplitude caused by temperature increase;If the temperature increased 1℃,spring phenophase in Beijing would advance 2.8-3.6 days.

对北京春季6种物候的计算得出其代表性指标—山桃始花期,并分析物候对气温变化的响应模式。根据气温变化态势,将历史时期气温和物候资料划分为4个时间段,并采用u检验论证时间段间具有显著性差异,分析物候期对气温变化的响应模式和机制,得出:物候期的提前与推迟对温度的增高与降低的响应是非线性的,在同等增、降温幅度下,因降温而导致的物候期推迟幅度较因增温而导致物候期提前幅度小;平均气温增高1℃,北京春季物候期提前2.8~3.6d。并估算了未来北京春季物候变化趋势。

 
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