photosynthetically active radiation是什么意思

用法例句

Diurnal changes of photosynthetically active radiation parameters in soybean and corn canopies;

大豆和玉米冠层光合有效辐射各分量日变化

The Modelling of Three Dimensional Distribution of Photosynthetically Active Radiation in Maize Canopy;

玉米冠层光合有效辐射三维空间分布模型的构建与验证

Other parameters such as photosynthetically active radiation (PAR), air temperature, humidity, wind speed were also measured.

2 0 0 2年 7月中旬 (湿季 ) ,我们利用快速异戊二烯系统对云南热带森林异戊二烯的排放通量进行了连续测量 ,同时对其影响因子光合有效辐射、气温、湿度、风等参数进行了观测 。

Response of photosynthetic physiological characteristics of Wedelia trlobata to the increasing photosynthetic active radiation;

三裂叶蟛蜞菊光合生理特性对光合有效辐射增强的响应

The photosynthetic active radiation(QPAR)is an important parameter in biology,ecology and agriculture,but in routine meteorological data no QPAR is observed and the observation data are also relatively less.

光合有效辐射是生物、生态和农业常用的重要参数,常规气象资料中没有该资料,实测结果也比较少,以往多采用经验气候学计算获得。

The results showed that the photosynthetic active radiation(PAR),net photosynthetic rate(Pn),growth,and yield of individual soybean or .

结果表明:不同种植模式下,大豆、辣椒的光合有效辐射、光合速率、生物量及产量均有不同程度的下降,且距树行愈近,影响愈大。

Calculation and Distribution of Solar Radiation and PAR in the Middle of Shanxi Province;

山西中部太阳辐射与光合有效辐射的特征研究

Calculation of Land PAR Using MODIS Data;

应用MODIS数据估算晴空陆地光合有效辐射（PAR）

Photosynthetically active radiation(PAR) in plant canopy plays a very important role in leaf photosynthesis.

玉米冠层内光合有效辐射(PAR)的大小直接影响冠层内叶片的光合作用,进而影响玉米净第一性生产力或作物产量的准确评估。

Based on the data of three years successive automatic measurement with five horizontal quantum PAR sensors,this paper studied the spatiotemporal characteristics of photosynthetically active radiation(PAR) in the understory of Korean pine and broadleaved mixed forest in Changbai Mountains,in contrast with above-canopy PAR.

利用长白山红松针阔叶混交林连续3年的光合有效辐射(PAR)观测数据,与林冠上方PAR值相对比,分析了林冠下5个不同水平位置探头的PAR时空特征。

the main elements as photosynthesis active radiation ( PAR ),CO 2 concentration(CO 2),air temperature( Ta ),leaf temperature( Tl) et al have be Measured and logged by Li 6400 portable photosynthesis system.

对自然生长的辽东栎林木用 LI-640 0测定其光合作用 ,实验包括以下内容 :在完全接近自然生长的条件下测定辽东栎叶片光合作用的日变化规律 ;控制光合有效辐射强度 ,测定叶片在不同 CO2 浓度下光合作用的变化规律 ;控制温度比对应时间段的温度高 2～ 4℃ ,并控制 CO2 浓度在 3 75～ 70 0 ml· m- 3间变化 ,测定辽东栎光合作用的变化情况。

Natural Distribution of Spectrum Simulation System

太阳光合有效辐射光谱分布模拟系统

Improvement on the Daily Photosynthetically Available Radiation Product of SeaWiFS

SeaWiFS日平均光合有效辐射数据的改进

Measurement and calculation of photosynthetically active radiation in Xianghe,Hebei province

香河地区光合有效辐射的测量和计算

Features of Photosynthetic Active Radiation(PAR) in Greenhouse

日光温室内光合有效辐射基本特征分析

The Temporal and Spatial Dynamics of Photosynthetically Active Radiation, Temperature and Relative Humidity in Maize Canopy;

玉米冠层内光合有效辐射和温湿度的时空动态

Calculation of Land PAR Using MODIS Data;

应用MODIS数据估算晴空陆地光合有效辐射（PAR）

Estimation of land instantaneous photosynthetically active radiation over complex terrain based on MODIS porducts

MODIS产品估算复杂地形下的光合有效辐射

Calculating photosynthetically active radiation in North China

华北地区光合有效辐射的计算方法研究

Diurnal Changes of Net Photosynthetic Rate(NPR) in Leaves of Lonicera japonica Thunb.and the Responding Mathematical Model of NPR to Photosynthetic Valid Radiation

金银花净光合速率日变化及其对光合有效辐射响应的数学模型

It showed that the rows preremained to plant cotton was shaded seriously bywheat.the PAR was reduced about 30%at the centre of the intercropped rows and thesolar radiation was reduced about 19%.

致使齐穗期预留棉行中央的光合有效辐射较冠层减少30％，太阳总辐射削减19％；

Features of Photosynthetic Active Radiation(PAR) in Haibei AlpineMeadow Area of Qilian Mountain during Plant Growing Period

祁连山海北高寒草甸地区植物生长期的光合有效辐射特征

The Modelling of Three Dimensional Distribution of Photosynthetically Active Radiation in Maize Canopy;

玉米冠层光合有效辐射三维空间分布模型的构建与验证

Establishing a Solar Radiation Measurement Network in Chinese Ecosystem Research Network and Study on the Distribution Characteristics of Ultraviolet and Photosynthetically Radiation in China;

中国紫外与光合有效辐射的联网观测及其时空分布特征研究

Comparative Study on Photosynthetic Active Radiation Characteristics of the Main Plant Introduction Site in Xishuangbanna Tropical Botanical Garden,SW China

热带引种植物主要定植区光合有效辐射特征比较研究

Effect of sowing date and rate on canopy intercepted photo-synthetically active radiation and yield of winter wheat

播期和播量对冬小麦冠层光合有效辐射和产量的影响

Diurnal changes of net photosynthetic rate (NPR) in leaves of different plants and the responding mathematical model of NPR to photosynthetic valid radiation

不同类型植物净光合速率的日变化及其对光合有效辐射响应数学模型研究

Variation of Spectrum of Photosynthesis Available Radiation Absorbed by Underwater Optical Medium with Depth in Lake Taihu in Summer

夏季太湖光学介质获取的光合有效辐射能量谱随深度变化规律的研究

Response of Vetiver Photosynthetic Characteristics to Elevated Persistent Available Radiation and CO_2 Concentration

香根草光合特性对有效光辐射增强和CO_2浓度升高的响应