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Accueil du site → Master → Chine → 2020 → Research on Crop Planting Structure Extraction and Agricultural Water Use in Arid Area Based on Remote Sensing ——Take the Lower Reaches of Tarim River as an Example

Chongqing Jiaotong University (重庆交通大学) 2020

Research on Crop Planting Structure Extraction and Agricultural Water Use in Arid Area Based on Remote Sensing ——Take the Lower Reaches of Tarim River as an Example

王芳

Titre : Research on Crop Planting Structure Extraction and Agricultural Water Use in Arid Area Based on Remote Sensing ——Take the Lower Reaches of Tarim River as an Example

Auteur : 王芳

Grade : Master’s Theses 2020

Université : Chongqing Jiaotong University (重庆交通大学)

Résumé partiel
As a special type of vegetation,crops are necessary for human beings to maintaintheir normal survival and development.Crop planting structure is a direct reflection of human use of agricultural production resources.In addition to reflecting the species,quantity and spatial distribution characteristics of crop planting structure,crops can also be used as relevant departments to adjust agricultural structure And important data support for calculating agricultural water use.How to obtain the information of crop planting quickly and accurately is an important premise to understand the characteristics of crop planting structure.With the development of science and technology and the continuous exploration of human beings,remote sensing technology is applied to agriculture.It has achieved a rapid and accurate leap in the processing of crop planting structure extraction,crop yield estimation and other aspects.It is also an important information means to study crop information at present.Tarim River Basin is a very arid area in Northwest China,and its water resources are very scarce.Because of the development of oasis agriculture in the basin,the agricultural water consumption is increasing gradually,which leads to the shortage of water resources in Tarim River Basin.In the process of water resources allocation,the relevant management departments often have the problem of unclear cultivated land area in the irrigation area,which makes it difficult to plan and implement the water resources allocation and make full and reasonable use of the limited water resources.In view of this,this paper selects the lower reaches of Tarim River as the research area and adopts Landsat 8 The oli remote sensing image is the data source to fully analyze the agricultural development situation in the research area,conduct field investigation and sampling,use Crop Phenology information,comprehensively select NDVI and evi vegetation index,use multi-temporal vegetation index method,time window threshold method and decision tree classification method to extract the crop planting structure information in 2016 in the lower reaches of Talimu River by remote sensing,and analyze its space in detail Distribution pattern and influencing factors

Mots clés : multi temporal ;remote sensing ;lower reaches of Tarim River ;crop planting structure ;agricultural water

Présentation (CNKI)

Page publiée le 26 mars 2022