归一化植被指数
- 网络NDVI
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天津地区归一化植被指数时间动态及其与气候因子的关系
Temporal variation of vegetation NDVI and its relations to climate factors in Tianjin area
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利用F-检验及方差分析与相关分析,研究小麦氮素处理水平、冠层反射光谱及其衍生信息(光谱反射率的一阶微分数据、归一化植被指数)、小麦产量三者之间的相关关系。
By F - test , variance analysis , correlation analysis , the correlation between , canopy spectral reflectance formations ( derivatives , NDVI ) and yield were analyzed .
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多时相归一化植被指数NDVI的时空特征提取与作物长势模型设计
Analysis of Multi-temporal and Multi-spatial Character of NDVI and Crop Condition Models Development
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区域归一化植被指数(NDVI)对植被光合作用响应的研究
The Respondence of Regional NDVI to Plant Photosynthesis
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利用2001&2005年新疆归一化植被指数NDVI,得出该时间段新疆植被覆盖整体呈增加趋势,但局部有退化现象。
NDVI index in2001-2005 showed that vegetation coverage had the trend to increase but local degraded .
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定居放牧方式下归一化植被指数(NDVI)的空间变化特征
Modeling the spatial pattern of normalized difference vegetation index ( ndvi ) under a post-nomadic sedentary grazing system
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NDVI(归一化植被指数)在监测地表植被覆盖中发挥着重要作用。
The Normalized Difference Vegetation Index ( NDVI ) has made great contribution in the monitoring of vegetation coverage on the land surface .
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以内蒙古地区Spot/vegetation归一化植被指数(NDVI)影像为基本信息源,综合应用地理信息系统(GIS)技术进行了大尺度神经网络分类实验研究。
An experiment research of large scale neural networks classification was carried out by applying GIS technique synthetically , which took the Spot / vegetation NDVI image in Inner Mongolia as basic information source .
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采用基于地物光谱特性的遥感技术获得归一化植被指数(NDVI)在大田作物生长监测、估产等方面的成功应用,为评价地块内葡萄生长势差异提供了依据。
The Normalized Difference Vegetation Index ( NDVI ) was applied on forecasting the crop growth statue and estimating their yield shows advantage to evaluate the vine vigor .
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系统利用NDVI(归一化植被指数)测定传感器实时地获取农作物生长的NDVI值,结合作物施肥的不同生长时期,达到依据作物长势实时变量施肥的目的。
According to the real-time value of NDVI ( normalized difference vegetation index ) from NDVI equipment and the different fertilization program , the real time variable rate fertilizer was realized .
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然后在像元二分模型的基础上对已有模型进行改进,建立用NDVI归一化植被指数估算植被覆盖度的模型。
Then based on the method of dimidiate pixel model , the current model is improved , and the model of deriving vegetation fraction from normalized difference vegetation index ( NDVI ) .
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根据地面光谱观测资料,建立了归一化植被指数与针叶被害率的相关方程,无松毛虫危害时NDVI为0.8823;
The correlation equation of damaged rate and normalized vegetation index ( NDVI ) was established , based on the ground spectrum observation . The NDVI was 0.8823 when no damage occurred .
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华北地区年际归一化植被指数(NDVI)的变化与降水的年际变化有相当强的正相关,降水量增加会显著的改善植被覆盖。
There is a positive correlation between the variation of annual normal difference vegetation index ( NDVI ) and the annual rainfall , and increasing of rainfall will improve the vegetation canopy over north China .
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作为NOAA/AVHRR归一化植被指数(NDVI)的延续和发展,EOS/MODIS归一化植被指数(NDVI)和增强植被指数(EVI)在许多领域得到广泛应用。
As the continuation and development of NOAA / AVHRR NDVI , the normalized difference vegetation index ( NDVI ) and enhanced vegetation index ( EVI ) of MODIS have been comprehensively used in many fields .
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综合应用归一化植被指数(NDVI)和土地表面温度(LST),提出了条件植被温度指数(VTCI)的概念,并将其用于干旱监测。
Based on remotely retrieved normalized difference vegetation index ( NDVI ) and land surface temperature ( LST ), vegetation temperature condition index ( VTCI ) is developed for monitoring drought occurrence at a regional scale .
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结果表明:基于MODIS的归一化植被指数对区域土地利用/覆盖的年际变化反映是敏感的,应用MODIS数据可以监测区域土地利用/覆盖变化的空间分布和面积大小。
The results showed that the standardized vegetation indexes based on MODIS were sensitive to inter-annual changes of land use / cover changes in the region . The MODIS data could be used to monitor the regional spatial distribution and area of land use / cover changes .
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通过分析归一化植被指数(NDVI)以及气候因子与鸟类多样性之间的关系,发现降水有利于增加鸟类多样性,温度对不同季节的多样性指数表现出不同的效用。
We also studied the effects of vegetation index ( normalized difference vegetation index , NDVI ) and climate factors on bird diversity . Our results revealed that abundant precipitation would increase the bird diversity while temperature showed different utility to diversity index in different seasons .
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模拟绿色生物量被转成AVHRR归一化植被指数(NDVI),并与1986~1990年观测到的植被指数进行了比较。
The green biomass was converted to normalized difference vegetation index ( NDVI ) of AVHRR remote sensing , and compared with the observed NDVI from 1986 to 1990 . The model was also compared with ground measurements of biomass and productivity along the transect .
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为了有效地从遥感资料中提取植被覆盖度,在像元二分模型两个重要参数推导的基础上,对已有模型进行了改进,建立了用归一化植被指数(NDVI)估算植被覆盖度的模型。
Estimation of vegetation fraction from remote sensing data may be a very efficient approach . Based on two important parameters of discursion of dimidiate pixel mode , the current model is improved . The model of deriving vegetation fraction from normalized difference vegetation index ( NDVI ) is established .
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归一化植被指数测量仪的研制与应用
Development and Application of the Device for Measuring Normalized Difference Vegetation Index
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从归一化植被指数提取气溶胶光学信息
Retrieving Aerosol Optical Information From NDVI Indices in Renal Failure
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科尔沁草甸草地归一化植被指数与气象因子的关系
Relationships between Horqin meadow NDVI and meteorological factors
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基于归一化植被指数的变量施肥控制系统研究
Research on control system of variable rate fertilizer applicator in precision agriculture based on NDVI
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归一化植被指数测量技术研究沙丘与草场的植被相似性较差;
A Measuring Technology for Normalized Difference Vegetation Index species similarity of sand dune and grassland was low ;
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利用归一化植被指数研究植被分类、面积估算和不确定性分析的进展
Recent Research Progress in Uncertainties of the Normalized Difference Vegetation Index , Land Cover Classification and Vegetation Fraction Estimation
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采用的植被指数,包括有归一化植被指数、绿波归一化植被指数和比值植被指数。
The vegetation index used is the normalized difference vegetation index , green normalized vegetation index and ratio vegetation index .
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提取出归一化植被指数与统计产量信息关系的基础上,构建玉米产量与归一化植被指数的回归方程。
Extract normalized vegetation index and statistical output information based on the relation of corn yield , constructing normalization vegetation index with regression equation .
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通过计算各组成分分量和归一化植被指数ND-VI之间的相关系数来进行波段组合,提高了遥感影像的分类精度。
By computing the correlation coefficient between ND ⅵ and other combined bands , the bands combination is finished and the accuracy of classification is improved .
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校正后,反映植被状况的归一化植被指数的值域比校正前增大、峰值变高,更接近实际情况;
In the meantime , the threshold value of NDVI data reflecting vegetation condition increased , and its high peak was higher , more close to the real data .
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反映玉米产量的时序归一化植被指数有非常显著的趋势,对其分析的目的就是要找到序列中的这种趋势,并利用这种趋势对序列的发展作出合理的预测。
Reflect the timing maize yield normalized vegetation index has very significant trend , the purpose is to find the analysis of a sequence of this trend , and use the trend of development of sequence make reasonable forecast .