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[1]ZHANG Jing,LIU Yong-mei,XU Jian,et al.Scale Effect Analysis of the Extraction about Vegetation Coverage[J].Research of Soil and Water Conservation,2014,21(03):120-124.

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Scale Effect Analysis of the Extraction about Vegetation Coverage

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 21 Number of periods: 2014 03 Page number: 120-124 Column: Public date: 2014-06-28

Title:: Scale Effect Analysis of the Extraction about Vegetation Coverage

Author(s):: ZHANG Jing¹, LIU Yong-mei¹, XU Jian², YANG Qin-ke¹; 1. College of Urban and Environmental Science, Northwest University, Xi’an 710127, China;
2. Petrochina Changqing Oilfield Company, Xi’an 710018, China

Keywords:: NDVI; vegetation coverage; scale effect

CLC:: TP751;P237

DOI:: -

Abstract:: Research on the relationship between vegetation index, vegetation coverage calculation results and the image resolution can provide theory basis for the rational use of remote sensing image under the large-scale and middle scale. This paper selects Xiannangou and Zhifanggou watersheds of Shaanxi Province as the study regions.The five basic resolution images of SPOT, MODIS, TM, ALOS, IKONOS were used to calculate the NDVI and vegetation coverage. And then the analysis on statistical characteristics and spatial structure was performed. The results show that TM images (30 m resolution) is applied to small watershed in terms of both statistical results and the accuracy analysis. The MODIS (500 m resolution) and the SPOT (1 000 m resolution) can be used for the study area with up to 10 000 m².

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