用遥感技术进行植物评估可与光谱植被指数联系起来，如规一化差分植被指数NDVI。
Plant condition assessment using remote sensing techniques have been associated with spectral vegetation indices such as the normalized difference vegetation index (NDVI).
在此基础上分析了不同氮素水平冬小麦生育期内的光谱植被指数的变化，并分析了农学参数与植被指数之间的相关性。
Furthermore, the variation of spectral vegetation index of winter wheat under different nitrogen levels and the correlation between agronomic parameters and spectral variables were analyzed.
该地图是根据NASA泰拉(Terra)卫星的中分辨率成像光谱仪(MODIS)的植被指数数据制作的。
The maps are based on vegetation index data from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite.
根据草地植被的光谱特征，整理目前常用于草地监测的植被指数。
According to spectrum characteristics of various grassland vegetations, vegetation indexes were settled which are often applied in grassland monitoring nowadays.
这表明，用微分光谱技术与植被指数方法来监测水稻的色素含量和长势应该是可行的。
This proves that it is feasible to use the technology of derivative spectrum and the method of vegetation index to monitor the pigment concentration and growth of rice.
通过对雪的光谱特征分析，提出利用归一化积雪被指数NDSI结合归一化植被指数进行积雪信息提取的方法。
By analyzing the spectrum characteristic of snow, a method of extracting snow information was suggested based on index of NDSI and NDVI.
通过分析水稻叶片氮含量与冠层光谱反射率及植被指数之间的相关性和定量关系，测试并评价便携式作物氮素监测仪的工作性能。
The correlations and the quantitative relationships between LNC and rice canopy reflectance spectra were analyzed, and the performance of portable nitrogen monitoring instrument was evaluated.
介绍了植被的光谱特征，概述了几种常见的植被指数及其优缺点。
Spectral reflectance characteristic of vegetation was introduced. The advantage and disadvantage of several vegetation indexes in common use were summarized.
介绍了植被的光谱特征，概述了几种常见的植被指数及其优缺点。
Spectral reflectance characteristic of vegetation was introduced. The advantage and disadvantage of several vegetation indexes in common use were summarized.
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