Applying Remote Sensing Technology to Agricultural Statistics of Beijing

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Applying Remote Sensing Technology to
Agricultural Statistics of Beijing

• Wang Yanyan
• Beijing Municipal Bureau of Statistics October
  2008

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Contents

• Introduction
• About the projects
• Achievements
• Current progress of the practical application

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Introduction

• Brief Review of Remote Sensing (RS
  )Application in China
• Researches and practices have been conducted by
  governmental departments and research institutes
  since 1980s.
• Statistical departments began to use RS in recent
  years
• National Bureau of Statistics of China

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Introduction

• Why we use RS
• - advantages of RS compared with the
  conventional methods
• Spatiality spatial distribution
• Objectivity avoid subjective factors or
  artificial interference
• Efficiency up-to-date data, less time,
  money, labor force spent on statistical survey

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Introduction

• What we do on RS
• 2 projects based on RS
• Construction of Statistical Visual Platform based
  on Beijing -1 Microsatellite
• Beijing Statistical Ecological Resource Remote
  Sensing Measurement Operation System

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About the Projects

• Targets of our projects
• Study the methodology and techniques fit for RS
  application to Beijing agriculture
• Develop a software platform
• Achieve the RS vocational operation in
  agricultural statistics of Beijing

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About the Projects

• Subjects of the Projects
• Area measurement of wheat and maize
• Yield estimation of wheat and maize
• Area measurement of agricultural facilities
• Vegetation coverage monitoring and NPP (Net
  Primary Production) estimation
• Development of System Software

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About the Projects

• Main methods of the projects
• Precise Extraction Method Based on Parcel of
  Field Unit
• Parcel-Level Method of RS Integrated with Spatial
  Sampling

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About the Projects

• The methodology and techniques system
  contains
• Key Methodology and Techniques
• Implementation Plan
• Accuracy Evaluation System
• Emergency Program

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Achievements

• Spatial distributions of wheat and maize area
• Spatial distributions of agricultural facilities
  area
• System software demonstration

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Wheat planting area in Beijing 2007
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Maize planting area in Beijing 2007
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Agricultural facility area in Beijing 2007
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System Software

• The system software includes 7 sub-systems
• Operation Management System
• Ecological Resource Measurement System
• PDA Field Survey System
• Product Fabrication System
• Data Release System
• Database Management System

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Log-in Interface of Ecological Resource
Measurement System
Ecological Resource Measurement System
subjects
Log in
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Ecological Resource Measurement System
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Data Release System
Beijing Ecological Resources Data Publishing
System Based on RS
Seasonal vegetation coverage
Agricultural facility area
NPP
Crop area
Crop yield
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Data Release System
Beijing Ecological Resources Data Publishing
System Based on RS
Menu
Spatial location
Attributes inquiry
Data presentation
Data analysis
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Current progress of the practical application

• Multiple data sources
• Scientific methods
• Desirable accuracy
• Timely submission
• Simple procedure and manageable software
• Emergency program.

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Current progress of the practical application

• Provided with all these mentioned above, some of
  the subjects are now basically ready for
  vocational operation.
• And this RS system for agricultural statistics of
  Beijing is planed to be actually used in 2009.

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Thank You !