活动积温

分布北界的限制因子，在内陆为冬季绝对低温过低，在海滨为夏季活动积温不足。

The limited factors of the north-distribution are colder absolute minumum temperature in winter in inland and not enough active accumulated temperature in seashore .

在应用某一品种时不仅以全生育期生物学温度为依据，更应注意各不同发育阶段生物学下限温度值、有效温度值和活动积温值等参数。

When planting , not only should we be according to the target of biological temperature in all growing period , but also pay more attention to the target of biological low temperature , effective accumulated temperature , and active accumulated temperature in different growing periods .

经验证，求导的生物学零度（ki）和花期活动积温（∑Τi）与实际观测年份各值基本吻合，经显著性检验均达到极显著水平。

Through justification , the deduced biological zero point ( Ki ) and the active accumulated tempera-ture (Σ Ti ) for bloom almost fit the actual numbers , and reached the most outstanding level through outstanding test .

数学模型导出了生物学零度（ki）和花期活动积温（∑Τi），图解模型对其进行了辨别，语言模型通过反馈回路对其进行验证实际效果。

The mathematical model was used to deduce biological zero point-joint ( Ki ) and bloom active temperature (Σ Ti ), which was studied by graphic model and language model , justifying the effect through feeding back loop .

活动积温是衡量一个地区农业热量资源的重要指标。

Accumulated temperatures and their lasting days are important indexes in agriculture .

应用随机模拟方法评估气候变化对活动积温的影响

Application of stochastic simulation to assessing the responses of accumulated temperature to climatic changes

整齐度、比强度受铃期≥15℃活动积温影响较大；

Fiber uniformity and fiber strength is affected mainly by activity accumulated temperature (≥ 15 ℃) of cotton boll stage .

提出了当量积温为环境因子有效性系数与活动积温乘积的概念。

Based on the study above , another concept of equivalent accumulated temperature is suggested that equals the product of the accumulated t.

在三种积温（或温度和）类型中，以有效积温（或温度和）与棉花产量指数的相关性最佳，气候积温（或温度和）和活动积温（或温度和）极为接近。

Among three types of cumulative temperature , the correlation between valid cumulative temperature and meteorological output index of cotton is the best .

利用活动积温的80%保证率建立的区划模型和区划指标将三明市分为7个水稻种植气候区，并提出了水稻生产趋利避害的建议措施。

Resultantly , Sanming was divided into 7 rice-planting climatic zones , and some suggestions and countermeasures for rice-planting in Sanming are put forward .

以生产上大面积推广应用的水稻主栽品种为样本，分析了东北全区域活动积温与水稻垩白率、垩白面积、垩白度的关系。

Using the main varieties in the production as samples , the relationship between the active accumulated temperature and chalkiness of rice was analyzed .

从播种到始穗的活动积温和有效积温，分别为1493.8～1766.3℃和733.4～1058.3℃。

The active and effective accumulated temperatures from sowing to heading are 1 493.8 ~ 1 766.3 ℃ and 733.4 ~ 1 058.3 ℃ respectively .

抽雄至成熟期的热量指标以订正后的标准抽雄日至成熟所需≥10℃活动积温来表示，成熟期用成熟度达到1的日期来表示。

The index from heading to maturity is expressed by active accumulated temperature of ≥ 10 ℃ from the corrected standard heading day to maturity .

本文统计分析了武威地区种植的优良牧草的生育期持续日数和≥0℃的活动积温，认为一年生豆科牧草持续日数在110天以上，积温在2000度一日以上。

In this paper , the growing duration and ≥ 0 ℃ active accumulative temperature of the good forage planted in the Wuwei prefecture have been processed statistically .

试验结果表明：气象因子对大豆异黄酮含量影响的排序为降水量、平均地面温度、日较差、相对湿度、活动积温、日照时数。

The results showed that the sequence of meteorological factor were precipitation , ground temperature , daily range of temperature , relative humidity , accumulated temperature and sunshine hour .

以生产水稻主栽品种碾磨品质和活动积温指标为依据，首次研究了我国东北全区域范围内稻米碾磨品质指标的区域变化规律。

Based on the milling quality of main rice cultivars in a region in the northeast of china and the regional cumulative temperatures , the regional chang law of rice milling quality indexes was studied .

结果表明：（1）神农架周边区域气候条件具有无霜期长、大田期气温适宜、降雨量充沛、日照时数长、≥10℃活动积温在2600℃以上等特点。

The results indicated that : ( 1 ) The surrounding areas of Shennongjia had a long frost-free period , feasible temperature , abundant precipitation , a long sunlight , and high accumulated temperature of ≥ 10 ℃ .

在活动积温（>10℃）>3200℃的荒漠地区，灌木（包括半灌木）在群落中占有绝对优势，其重要值可达到100；

In the desert regions with an accumulated temperature of > 10 ℃ being greater than 3 200 ℃, the shrubs ( included semi-shrubs ) occupy dominant positions in the communities , and the importance values reaches 100 ;

对日光温室内的活动积温、气温、地温的季节变化、日变化，气、地温的空间分布规律，气、地温之间的关系进行了较为系统的研究；

The seasonal and daily changing laws of accumulated temperature , air temperature and earth temperature , the spatial distributing laws of air temperature and earth temperature , the relations between air temperature and earth temperature within greenhouse were studied .

利用生长曲线模型，根据9个水稻品种在不同温度下的吸水及发芽状况确立了它们的临界下限温度、50%发芽所需有效积温和活动积温。

According to the situation of water absorption and germination of 9 rice cultivars ( lines ) under different temperature regimes , we set up their threshold low temperature and effective accumulated temperature required for 50 percent seeds germination by using growth curve model .

应用甘肃省63个地面测站1961～2003年气温资料，对年平均气温、最高气温、最低气温、≥0℃、≥10℃活动积温和<0℃负积温进行分析。

Based on temperatures of 171 observations from 1961 to 2003 in Gansu province , the year mean temperature , highest temperature , lowest temperature , accumulated temperature above 0 ℃, 10 ℃, and negative accumulated temperature beneath 0 ℃ were collected to analyze .

温度是分子动能能量级，发育起点温度是启动生化反应的能量级，用活动积温表述昆虫发育所需热能比用有效积温更为确切。

As temperature is a molecular kinetic energy level , and the start temperature of development is an energy level to activate biochemical reaction , so using the active accumulated temperature to describe the energy needed for insect development is more accurate than using effective accumulated temperature .

根据阿拉尔市气象局（原阿拉尔气象站）1961~2003年的气象资料，采用求平均值和五日滑动平均气温来确定某界限温度的初、终日期及其持续期活动积温。

According to the meteorological data ( 1961 ~ 2003 ) from Alar Meteorological Bureau ( former Alar Meteorological Station ), the initial and final date and the accumulated temperature of certain boundary temperature have been counted by the methods of average value and 5-days gliding average value .