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Xinjiang University (2021)

Study on Geographical Distribution Pattern of Rhombomys Opimus in Desert Ecological Forest Region

乔雪丽

Titre : Study on Geographical Distribution Pattern of Rhombomys Opimus in Desert Ecological Forest Region

Auteur : 乔雪丽

Grade : Master 2021

Université : Xinjiang University

Résumé partiel
Rhombomys opimus is one of the main rodent pests,which is mainly distributed in desert forests and feeds on the tender roots,tender stems and root bases of desert plants,seriously endangering the growth of vegetation in desert forests.The decline and death of desert vegetation lead to intensified desertification.Through the study of hazard monitoring and hazard classification technology,a set of low altitude remote sensing monitoring method suitable for the harm of desert forest gerbils was finally formed.The results can provide strong technical support for efficient and accurate monitoring of the harm of desert forest gerbils.Firstly,the UAV orthophoto and digital elevation model images of large gerbils in Manas County Desert Park were obtained by using1.0cm low-altitude aerial image of UAV.The e Cogition was used to extract the object-oriented mouse hole information,and the spatial analysis of mouse hole density and coverage was carried out based on GIS grid.Secondly,Max Ent model was used to simulate the potential geographical distribution of gerbils in Manas County,and the spatial distribution trend of gerbils in desert ecological forest area was evaluated,which provided valuable basis for the development of low cost but effective monitoring system.

Mots clés : UAV remote sensing ;Geographic information technology ;Rhombomys opimus ;MaxEnt;Distribution pattern ;

Présentation (CNKI)

Page publiée le 3 mars 2022