日变化

C3植物光合效率的日变化

Diurnal Variation of Photosynthetic Efficiency in C_3 Plants

在2003年9月2日光合速率的日变化12：00时，处理B要远远大于对照，增加比例为24.35%；

Compare diurnal variation of net photosynthetic rate of treatment B to that of control at 12:00 , Sep.

近地层空气湿度的日变化与温度相反。Air（初三适用）

The daily change of air humidity in surface layer is contrary to that of temperature .

退化草地暗沃寒冻雏形土CO2释放的日变化和季节动态

No-hair day diel and seasonal changes of carbon dioxide emission from mollic-cryic Cambisols on degraded grassland

锡林河流域羊草群落春季CO2排放日变化特征分析

The Analysis of Diurnal Variation of CO_2 Flux in Leymus chinensis Grassland of Xilin River Basin

森林蒸散量日变化特点是白天高于夜间，中午最高，夜间潜热通量和显热通量（H）有低估的现象；

Forest evapotranspiration was higher in the daytime than that at night , with the highest value occurring at noon .

湿度日变化来看，无论晴、阴、雨湿度日变化均呈U形。

In sunny , cloudy or rain day , the humidity changes were on U-shaped .

文章还模拟了PAN，OH自由基和HCHO这三种重要物种的日变化规律。

We also simulated the daily changes of PAN , OH and HCHO .

钾营养对水稻光合速率（Pn）、Hill反应及SOD活力日变化的影响

Effect of Potassium on Diurnal Variations in Pn , Hill Reaction and SOD Activities in Rice Plant

自然光下，石斛的光合速率日变化呈V型，12：00时光合速率最低。

Daily change of photosynthesis for dendrobium shows V type and there is the lowest photosynthesis at noon under natural light .

1首先分析了长江口SST的日变化。

Firstly it is analyzed the daily SST variation in the Changjiang estuary .

不同砧木红星苹果树含水量的日变化呈V形曲线。

Diurnal changes of relative water content of Starking apple trees on different rootstocks presented as a " V " shaped curve .

水分利用效率日变化格局有所不同，且随CO2浓度增加而增大。

The daily patterns of water use efficiency are different and water use efficiency enhances with carbon dioxide concentration increasing .

研究发现，漠河地区近地面臭氧日变化明显，其峰值出现在每日10：00（北京时间）左右，并早于紫外辐射（UV）峰值出现时间。

Its peak usually appeared around 1000 LST ( Local Standard Time ), which was earlier than the UV peak appearance .

实验得到的视渗透率数据与渗透率具有较好的相关性。CH4排放的日变化与温度日变化的相关性很好（R＞0.90）。

The diurnal variation of CH4 emission rate correlates very well with the temperature ( R > 0.90 ) .

对所有草原植物生长季节，CO2净排放日变化形式均为白天出现排放低值，夜间出现排放高值。

The daily emissions of CO2 from steppe vegetation in growing seasons are low during the daytime and high at night .

但是，大气中的CO柱总量受到气象条件的重要影响，影响CO柱总量逐日变化和日变化的气象因子主要有大气稳定度、风速和风向等。

However , the variation of CO column amount is closely dependent on meteorological condition , mainly including atmospheric stability , wind speed and wind direction .

结果显示，在玛尼7.5级地震和江西九江5.7级临震前，震中周围出现区域性Z分量日变化幅度异常现象。

The anomalies of diurnal-variation amplitude near the epicentral area have been also studied before Mani M_S7.5 earthquake and Jiujiang M_S5.7 earthquake .

N2O通量季节变化和年际变化差异不显著，并且无明显的日变化规律。

The seasonal , interannual and diurnal variability of N2O fluxes was not significant .

光合速率的日变化在12：00时B处理要远远大于对照，增加比例为24.35%；穗位叶蒸腾速率B处理明显大于对照，2003年各坡度平均增加282.8%，2002年为350.4%。

Compare diurnal variation of net photosynthetic rate of treatment B to that of check at 12:00 , Sep.2 , 2003 , far more was increased , the increasing rate was 24.35 % ;

O3浓度呈明显的日变化，一般在下午浓度较高，上午和夜晚较低；

It is higher in the afternoon and lower in the morning and evening .

08时（北京时，下同）TC平均增强速度最快，14时最慢，平均减弱速度无明显日变化特征；

TC deepens fastest at 08:00 Beijing Time and slowest at 14:00 Beijing Time . The average filling rate shows no obvious daily variation .

冬、春季的日变化曲线呈U形，且曲线形状的变化不如夏、秋季大。

The diurnal variation curves in winter and spring present marked saddle shapes , and the change of curves shape is not obvious in summer and autumn .

以Rubisco抗体建立单向免疫扩散法，定量测定Rubisco含量，研究小麦叶片光合作用日变化过程中Rubisco含量及其活力的变化。

Rubisco content was quantified by simple agar diffusion .

各处理不影响净光和速率（pn）的日变化趋势，但对Pn值得大小有影响。

All the trimming method did not effect the daily change tendency of Pn , but could effect the numerical value of Pn .

结果表明：1叶片净光合速率Pn具有明显的日变化。

The main results showed as follows . ( 1 ) The net photosynthetic rate ( Pn ) of leaves have obvious diurnal changes .

不同叶位叶片Pn的日变化规律基本相同，均呈单峰曲线型，高峰出现在12时左右。

The diurnal variation of Pn in leaves at different positions were one peak pattern curve , and the peak appeared at 12 o'clock .

测定结果表明三者的光合速率、气孔导度、胞间CO2浓度、蒸腾速率日变化均为“双峰”曲线。

Results showed that diurnal courses of photosynthetic rates , stomatal conductance , intercellular CO2 concentration , and transpiration rate of the3 species were the double-peak type curves .

小麦Rubisco抗体的制备及其抗体在光合作用日变化研究中的应用

Preparation of the Antibody of Rubisco and Application in Diurnal Change of Photosynthetic in Wheat

阴天天气条件下，4个柑橘品种的Pn日变化规律模式均为单峰曲线，最大值出现在上午11∶00。

In overcast day , all citrus presented one peak curve in diurnal variation of Pn and the maximum value occurred at 11 : 00 .