Overview

Crop identification and Crop Area Estimation

• Object-based Image Analysis and The Support Vector Machine (SVM) classification method
• The fusion of SAR and Optical satellite data
• Statistical analysis
• Determine to what level of accuracy Radarsat-2 can classify crops with different cropping system in China
• Determine whether Radarsat-2 data alone can produce classification accuracies targeted by CAAE (overall and individual accuracies of 90%) at the early stages of the growing season
• Develop comprehensive algorithms using Radarsat-2 in combination with other data resources in the operational crop monitoring system

Crop Condition/Stress

• Normalized Difference Vegetation Index (NDVI)
• The ground truth information

Yield Prediction and Forecasting

• Artificial Neural networks (NN) method

Phenological Events and Estimation of Rice biophysical variables

• Multiple regression analysis
• Leaf Area Index (LAI) measured with Hemispherical lens

Crop Biophysical Parameters Estimation

• Leaf Area Index monitoring using Radarsat-2 images at regional scale

Project Objectives

Site Description

Landscape Topography	flat area, and low hills around
Typical Field Size	0.1 to 10.0 ha
Climatic Zone	Tropics, warm
Major Crops and Calendars	Rice (Normal): Calendar: March - June Typical Rotation: Typical Crop Rotation is paddy rice with two harvests per year Rice (Late): Calendar: August - November Sugar cane (Normal): Peanut (Normal):
Soil Type & Texture
Soil Drainage Class	["Well drained"]
Irrigation Infrastructure	["Surface irrigation"]
Other Site Details

In Situ Observations

Planting pattern, growing stage, seeding/transplanting date, plant height, Leaf area index(LAI), weather condition and digital photos during key rice growing stages concurrently with the satellite pass

• Crop Type(s):
• Collection Protocol:

  25 sample plots

• Frequency:

Crop height

• Crop Type(s):
• Collection Protocol:
• Frequency: About 2 times each crop year

Accuracy of rice identification

• Crop Type(s):
• Collection Protocol:

  Hundreds of points for land cover type were collected once per season

• Frequency:

Crop type

• Crop Type(s):
• Collection Protocol:

  GPS

• Frequency: 2 times each crop year

LAI

• Crop Type(s):
• Collection Protocol:

  LAI2000

• Frequency: About 2 times each crop year

EO Data

Optical Data Requirements

Approximate Start Date of Acquisition: 01/04

Approximate End Date of Acquisition: 31/10

Spatial resolution: High resolution (5-20m)

temporal_frequency: Monthly

Level of Expertise: Intermediate

Latency of Data Delivery: 2-5 days

Challanges:

SAR Data Requirements

Approximate Start Date of Acquisition: 01/04

Approximate End Date of Acquisition: 31/10

Spatial resolution: High resolution (5-20m)

temporal_frequency: Biweekly

Frequency: XCL

Incidence Angle: ShallowMediumSteep

Polarisation:

Level of Processing: Level 2

Orbit: Any

Level of Expertise: Intermediate

Latency of Data Delivery: 2-5 days

Challanges:

Passive Microwave Data Requirements

Thermal Data Requirements

Results

Documents and Files

Links to paper

Project Reports

Generate

Study Team

Team Leader

Name: Zhiyuan Pei

Affiliation: Ministry of Agriculture and Rural Affairs of the People's Republic of China

Affiliation Webpage: http://english.agri.gov.cn/

Position:

Email: peizhiyuan@agri.gov.cn

Personal Webpage:

Phone number:

Postal Address:

Other Team Members

Name: Xiaoqian Zhang

Affiliation:

Affiliation Webpage:

Position:

Email:

Personal Webpage:

Role: Member

Name: Lin Guo

Affiliation:

Affiliation Webpage:

Position:

Email:

Personal Webpage:

Role: Member

Name: Fei Wang

Affiliation:

Affiliation Webpage:

Position:

Email:

Personal Webpage:

Role: Member

Name: Shangjie Ma

Affiliation:

Affiliation Webpage:

Position:

Email:

Personal Webpage:

Role: Co-Lead

Name:

Affiliation:

Affiliation Webpage:

Position:

Email:

Personal Webpage:

Role: Member

Name: Heather Mcnairn

Affiliation:

Affiliation Webpage:

Position:

Email:

Personal Webpage:

Role: Member

Name: Jiali Shang

Affiliation:

Affiliation Webpage:

Position:

Email:

Personal Webpage:

Role: Member

Name: Juanying Sun

Affiliation:

Affiliation Webpage:

Position:

Email:

Personal Webpage:

Role: Member