植被指数反映了这一变化。
“植被指数”是对光合作用强度的反映。
土壤湿度对植被指数起着重要的作用。
这会限制植被指数作为监测手段的使用。
This would limit the use of vegetation indices as a monitoring tool.
科学家根据标准化植被指数对植被进行了观测（未显示在上图）。
Scientists also rely on the Normalized Difference Vegetation Index (not shown) to observe vegetation.
介绍分析了各种植被指数，利用非线性比自动提取植被信息。
Then the paper introduces vegetation indexes and extracts automatically the vegetation information through non-linear ratio.
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.
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.
研究评价了适于黄土高原地区植被信息提取的最佳植被指数和方法。
The optimum vegetation index and methods for collecting vegetation information in loess plateau area were studied and appraised.
用含测量误差的线性模型，由植被指数(NDVI)估计稻谷产量。
Using the linear model with measurement error paddy production was estimated by means of NDVI.
该处理方法同样适用于NOAA和MODIS等数据的植被指数预处理。
Similarly, this processing method can be applied in plant indicator pre-processing for NOAA, MODIS data, etc.
对于林区植被，降水的年际变化对地表植被的影响比较小，森林区植被指数最高；
The vegetation in forest area, in which has the highest vegetation index, the impact of annual change of precipitation on surface vegetation was slight.
如果取冬麦生育期的累积植被指数和累积降水量的相对变率则其间的相关系数将提高。
If the relative variability of cumulative vegetation index and cumulative precipitation during the winter wheat growth cycle is adopted, the correlation coefficient between both is raised.
随着像元尺度变大，LAI的标准差增大，但植被指数与LAI的相关系数并不降低。
With the larger pixel scale, standard deviation of LAI increased, but the correlation coefficients of vegetation index and LAI are not reduced.
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.
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).
罕见的暴雨导致了洪水的到来，但同时也将沙漠染成了绿色，该变化在这幅植被指数图中得到很好体现。
The extreme rain brought floods, but it also turned the desert green, as shown in this vegetation index image.
分别利用水稻抽穗期归一化植被指数和比值植被指数反演了叶面积指数和生物量数据信息。
The test data had been participated in the whole classification process. The accuracy of interpreted information on rice planting area was more than 90%.
利用植被指数从TM影像中提取植被，从技术与经济成本方面综合考虑，是一个比较好的手段。
As to technology and economic cost synthetically, extracting urban vegetation features by vegetation indices from Thematic Mapper (TM) images is a comparatively good way.
植被指数(NDVI)和叶面积指数(LAI)是两个非常重要的陆地生态系统植被状态参数。
The vegetation index (NDVI) and leaf area index (LAI) are two key important land vegetation ecosystem status parameters.
通过该模型反衍出了泾河流域潜在植被指数，提出以该指数为基础的植被冗亏格局的评价新方法。
Based on this model, we reversely deduced the potential vegetation index of Jinhe River Basin and proposed.
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.
以改进的热惯量法、作物缺水指数法和植被指数法等为主要代表的土壤水分遥感监测方法日臻成熟。
The results showed that the methods on soil moisture monitoring by remote sensing, which are mainly stood for by improved thermal inertia, CWSI and vegetation index, are becoming mature.
其次，利用TM影像的第四和第三波段计算植被指数，根据植被指数按照转换模型提取植被覆盖度；
Next, vegetation index was calculated which was based on Band 3 and Band 4 of TM image, and degree of vegetation coverage was extracted according to NDVI based on the transformation model;
分析了MODIS在植被生长变化监测中的优势，讨论了省级MODIS植被指数序列的建立方法。
The advantage of MODIS vegetation monitoring was analyzed. The methods for establishing time series of vegetation indicator by using MODIS data in Shaanxi Province were discussed.
通过对作物生长期内植被指数变化曲线分析，选择合适的分类特征，进行华北地区主要作物类型识别。
Selecting the proper classification features, the primary crop types in North China could be identified through the analysis of the vegetation index time series in growth season.
在对岛屿面积效应研究时，探讨了不同面积岛屿的归一化植被指数及其不同等级岛屿斑块的景观格局。
When studied the area effect of islands, the values of NDVI of islands with different areas, and the landscape pattern of island patches with different grades of NDVI were studied.
以绍兴县为例，通过几个典型季节的植被指数图，进行了定量和定性的分析，获得了有实际意义的结果。
Shaoxing county is taken for example, quantitative and qualitative analysis are carried out based on vegetation index charts of typical seasons , and some important, results are obtained.
VEGETATION植被指数与森林资源特征因子之间的相关性是该遥感数据用于森林资源监测的基础。
The correlationship between VEGETATION index and feature factors of forest resources is the basis that this remote sensing data will be used in forest resources monitoring.
VEGETATION植被指数与森林资源特征因子之间的相关性是该遥感数据用于森林资源监测的基础。
The correlationship between VEGETATION index and feature factors of forest resources is the basis that this remote sensing data will be used in forest resources monitoring.
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