Overview

Project Objectives

Site Description

Landscape Topography	Plain
Typical Field Size
Climatic Zone	Subtropics, cold
Major Crops and Calendars	Rice (Normal): Calendar: June - October
Soil Type & Texture	Inorganic: Clay
Soil Drainage Class
Irrigation Infrastructure
Other Site Details	The terrain is flat, with the average altitude mostly less than 10m. The climate belongs to the transition region between the subtropical and the temperate zone, with four distinct seasons. The annual average temperature of the test site is about 13 to 16?. The average precipitation is about 800 to 1200 mm every year, and more than half of the precipitation occurs from June to September. The sunshine hours can be up to 2400 every year. The soil type of this region is mostly yellow brown clay, which is more favorable for rice plant development. The main paddy varieties in this area are hybrid and japonica rice. There is one rice crop a year, with the growth cycle about 150 days, from early June to late October or early November. There are two rice planting methods in the test site, transplanting and direct-seedling, which will produce two different rice field structures (Fig 2(a) (b)) and have a certain impact on rice yields. The size of rice field parcels is 1700m2 or so. In this study, forty-two sample plots were selected in the test site, covering twenty-nine transplanting fields and thirteen direct-seedling fields. The distribution of these sample plots is also showed in Fig 1. Figure 1. The location of test site and the distribution of the sample plots, cloud and sun mean transplant and direct-planting rice fields respectively.       (a) Transplanting                                        (b) direct-seedling Figure 2. Rice fields in Jiangsu test site

In Situ Observations

Weight of a panicle (moist, dry)

• Crop Type(s):
• Collection Protocol:

  Field sampling, measured by balance

• Frequency: Four times during experiment cycle

Plant Bunch distance

• Crop Type(s):
• Collection Protocol:

  Measured by steel ruler

• Frequency: Ten times during experiment cycle

Number of Leaf/stem

• Crop Type(s):
• Collection Protocol:

  Select a few stems randomly, count the number, then calculate the value per stem

• Frequency: Ten times during experiment cycle

Moist weight and Dry height/bunch

• Crop Type(s):
• Collection Protocol:

  Field sampling, measured by drying method

• Frequency: Ten times during experiment cycle

Leaf length, width and thickness

• Crop Type(s):
• Collection Protocol:

  Measured by vernier caliper

• Frequency: Ten times during experiment cycle

Number of stem/bunch

• Crop Type(s):
• Collection Protocol:

  Select a few bunches randomly, count the number, then calculate the value per bunch

• Frequency: Ten times during experiment cycle

Paddy variety

• Crop Type(s):
• Collection Protocol:

  Obtain through field measurements

• Frequency: Once during experiment cycle

Number of Panicle/bunch

• Crop Type(s):
• Collection Protocol:

  Select a few bunches randomly, count the number, then calculate the value per bunch

• Frequency: Four times during experiment cycle

Stem diameter

• Crop Type(s):
• Collection Protocol:

  Measured by vernier caliper

• Frequency: Ten times during experiment cycle

Method of planting

• Crop Type(s):
• Collection Protocol:

  Obtain through field measurements

• Frequency: Once during experiment cycle

Panicle length

• Crop Type(s):
• Collection Protocol:

  Measured by steel ruler

• Frequency: Four times during experiment cycle

Stem inclination

• Crop Type(s):
• Collection Protocol:

  Estimation using compass

• Frequency: Ten times during experiment cycle

Sowing date

• Crop Type(s):
• Collection Protocol:

  Obtain through field measurements

• Frequency: Once during experiment cycle

Panicle angle

• Crop Type(s):
• Collection Protocol:

  Estimation using compass

• Frequency: Four times during experiment cycle

Plant height

• Crop Type(s):
• Collection Protocol:

  measured by steel ruler

• Frequency: Ten times during experiment cycle

Water layer height

• Crop Type(s):
• Collection Protocol:

  Measured by vernier caliper

• Frequency: Six times during experiment cycle

Number of grain/panicle

• Crop Type(s):
• Collection Protocol:

  Select a few panicles randomly, count the number, then calculate the value per panicle

• Frequency: Four times during experiment cycle

Number of Bunch/m2

• Crop Type(s):
• Collection Protocol:

  Select a field randomly, count the number, then calculate the value per square meter

• Frequency: Ten times during experiment cycle

Soil condition

• Crop Type(s):
• Collection Protocol:

  Observation, field sampling, measured by drying method

• Frequency: Ten times during experiment cycle

Dimensions of grains (length, width)

• Crop Type(s):
• Collection Protocol:

  Measured by vernier caliper

• Frequency: Four times during experiment cycle

Bunch diameter

• Crop Type(s):
• Collection Protocol:

  Measured by vernier caliper

• Frequency: Ten times during experiment cycle

Leaf insertion angle

• Crop Type(s):
• Collection Protocol:

  Estimation using compass

• Frequency: Ten times during experiment cycle

EO Data

Optical Data Requirements

SAR Data Requirements

Passive Microwave Data Requirements

Thermal Data Requirements

Results

Documents and Files

Links to paper

Project Reports

Generate

Study Team

Team Leader

Name: Yun Shao

Affiliation: Institute of Remote Sensing and Digital Earth (RADI)

Affiliation Webpage: http://english.radi.cas.cn/

Position:

Email: shaoyun@radi.ac.cn

Personal Webpage:

Phone number:

Postal Address:

Other Team Members

Name: Li Kun

Affiliation: Institute of Remote Sensing and Digital Earth (RADI)

Affiliation Webpage: http://english.radi.cas.cn/

Position:

Email: likun@radi.ac.cn

Personal Webpage:

Role: Co-Lead