两年的植被覆盖指数相差较大,说明植被覆盖减少显著。
Vegetation cover index decreases by a big margin, indicating that the vegetation cover reduces obviously.
土地植被覆盖指数的准确度取决于图像分类准确度,但与分类总准确度没有直接关系。
The accuracy of land vegetative cover index rested with the accuracy of image classification, but had no direct relations with total classification accuracy.
以中国资源环境数据库为支撑,计算出1995和2000年湖北省各市县植被覆盖指数及省级归一化系数。
Based on Chinese Resources and Environment Database, the vegetation coverage index for each county and its provincial normalized coefficient of 1995 and 2000 of Hubei province are calculated.
本文介绍了使用普通数码相机并用常用的图像处理软件测量叶面积指数和植被覆盖率的方法,阐明摄像和图像处理的基本要求及人工干预操作。
This paper presents the method of how to measure the leaf area index and the percentage of vegetation by using the general digital camera and image processing most in use.
研究结果表明:VBSI在估算山区的植被覆盖信息上可以降低影像阴影信息的干扰,总体误差是归一化植被指数NDVI 的50%;
The results show that: VBSI may decrease the error of vegetation fraction resulted from the area of image shadow, and the error is 50% less than that from NDVI.
MODIS植被指数是植被生长状态及植被覆盖的最佳指示因子,也是季节变化和人为活动影响的重要指示器。
MODIS vegetation index is a factor of the best indicators between state of vegetation growth and vegetation cover.
以amsr - E数据为例,研究证明了微波极化差异指数(MPDI)能够反映地表植被覆盖状况。
This paper proves that the Microwave Polarization Difference Index (MPDI) can be used to indicate the vegetation coverage conditions with the AMSR-E L2A brightness temperature data product.
植被归一化指数(NDVI)是地表植被覆盖特征的重要指标之一。
Normalized difference vegetation Index (NDVI) is one of the main characteristic descriptors indicating land surface vegetation cover.
通过长期定位试验,研究不同植被覆盖与施肥管理对黑土活性有机碳库形成及碳库管理指数icm的影响。
Effects of vegetation and fertilization on black soil labile organic carbon and carbon management index (ICM) were studied in a long-term fertilization experiment.
该研究主要利用MODIS高分辨率数据,运用植被指数原理和及其植被指数的长时间序列变化,将研究区内植被覆盖分为15个类别,总体精度为73.71%。
The study use MODIS data and VI principle and VI long time serial variation to distinguish the investigation area 'vegetation cover. Finally, making off 15 kinds and the overall accuracy is 73.71%.
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;
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;
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