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Study on the Dynamic Changes of Vegetation in the Loess Plateau Based on Data from SPOT4

LIU Yong-mei Xia Lu

Open publisher page 3 citations

Abstract

Changes in vegetation distribution of Loess Plateau during 1998~2005 are discussed in this paper based on SPOT4/VEGETATION data.The ratio of NDVI and the annual mean NDVI were used as the indices to show the dynamic changes.The conclusion is that those changes have been greatly enhanced during the past few years.The vegetation cover had decreased since 1998,however,after 2001 it has been increased significantly,for the Grain for Green Project,even though a little rebound in 2004.Both growth rate and growth period have a great impact on NDVI.Changes in vegetation distribution have taken place in so many different areas.This phenomenon is caused by a variety of factors such as farming,urban planning and weather changing.

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What this paper is about

Changes in vegetation distribution of Loess Plateau during 1998~2005 are discussed in this paper based on SPOT4/VEGETATION data.The ratio of NDVI and the annual mean NDVI were used as the indices to show the dynamic changes.The conclusion is that those changes have been greatly enhanced during the past few years.The vegetation cover had decreased since 1998,however,after 2001 it has been increased significantly,for the Grain for Green Project,even though a little rebound in 2004.Both growth rate and growth period have a great impact on NDVI.Changes in vegetation distribution have taken place in so many different areas.This phenomenon is caused by a variety of factors such as farming,urban planning and weather changing.

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Available abstract

Changes in vegetation distribution of Loess Plateau during 1998~2005 are discussed in this paper based on SPOT4/VEGETATION data.The ratio of NDVI and the annual mean NDVI were used as the indices to show the dynamic changes.The conclusion is that those changes have been greatly enhanced during the past few years.The vegetation cover had decreased since 1998,however,after 2001 it has been increased significantly,for the Grain for Green Project,even though a little rebound in 2004.Both growth rate and growth period have a great impact on NDVI.Changes in vegetation distribution have taken place in so many different areas.This phenomenon is caused by a variety of factors such as farming,urban planning and weather changing.

Key concepts: Normalized Difference Vegetation Index, Loess plateau, Vegetation (pathology), Vegetation cover, Physical geography, Loess, Plateau (mathematics), Vegetation Index

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