Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Master → Chine → 2021 → Analysis of Vegetation Dynamic Changes and Influencing Factors in Altay Region in the past 20 Years

Lanzhou University of Technology (兰州理工大学) 2021

Analysis of Vegetation Dynamic Changes and Influencing Factors in Altay Region in the past 20 Years

张曼

  • Titre : Analysis of Vegetation Dynamic Changes and Influencing Factors in Altay Region in the past 20 Years

Auteur : 张曼

Grade : Master 2021

Université : Lanzhou University of Technology (兰州理工大学)

Résumé partiel
Vegetation as the main part of the ecosystem,is one of the important signs of regional ecological environment.Due to the common impact of various factors such as natural factors and human activities,vegetation coverage changes are complex,analyze vegetation coverage in detail in the regional scale and its response to climate,terrain,etc.,has become a hot problem in the field of ecological environment.one.Altay region is rich in natural resources,ecosystem complex and diverse,is the main city of Xinjiang,Mongolian,and Russian economy corridors,but the ecology of Altai region is extremely sensitive and fragile,and the ecological environment is increasingly concerned.It is therefore conducting research on the characteristics of time and space change in Vegetation coverage in Altai,which helps to explore the driving factors of vegetation dynamic changes,which has important application value and practical significance for the ecological environment in Altai.Using NDVI,LAI,GPP,SPEI and other multi-source remote incentive time series data,use trend analysis algorithm,terrain bit and GIS statistical analysis algorithm,and study vegetation coverage in the past 20 years in the past 20 years.Combined with the precipitation,temperature data,the related analysis method is used to analyze the relationship between dynamic changes and precipitation and temperature from the two angles from the annex and season.At the same time,the advantageous terrain of the vegetation change type of the study area was analyzed by the terrain factor such as the altitude,slope and slope of the study area.

Mots clés : Altay area ;multi-source remote sensing time series ;vegetation coverage ;trend;topographic position

Présentation (CNKI)

Page publiée le 15 mars 2022