World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

The Model of Wheat Yield Forecast Based on Modis-ndvi – a Case Study of Xinxiang : Volume I-7, Issue 1 (16/07/2012)

By Zhang, H.

Click here to view

Book Id: WPLBN0004013700
Format Type: PDF Article :
File Size: Pages 4
Reproduction Date: 2015

Title: The Model of Wheat Yield Forecast Based on Modis-ndvi – a Case Study of Xinxiang : Volume I-7, Issue 1 (16/07/2012)  
Author: Zhang, H.
Volume: Vol. I-7, Issue 1
Language: English
Subject: Science, Isprs, Annals
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Zhou, G., Chen, H., & Zhang, H. (2012). The Model of Wheat Yield Forecast Based on Modis-ndvi – a Case Study of Xinxiang : Volume I-7, Issue 1 (16/07/2012). Retrieved from http://worldebooklibrary.com/


Description
Description: CMA/ Henan Key Laboratory of Agro-meteorological Safeguard and Applied Technique, Zhengzhou 450003, China. The yield estimation models on a regional scale are generally constrained by the lack of spatially distributed information on major environmental. The utilization of remote sensing data with various spatial and temporal resolutions can settle this problem. The NDVI, which retrieved from satellite remote sensing, was adopted to forecast winter wheat yields in this paper. There are two key steps in the process of calculating. The first is the establishment of the relationship between NDVI and Above Ground Biomass (AGB). The second is the Harvest Index(HI) calculating based on the change of NDVI from the period of re-greening to maturity. The validation results showed that forecast accuracy is satisfied and can be applied in practice of winter wheat yield forecasting. However, the error will be increased in abnormal weather condition, for higher or lower value of NDVI is made than normal situation, (such as re-greening too early, overgrowth, and late-maturing, etc.). So the model amendment is required according to the status of crop and weather condition in the year.

Summary
THE MODEL OF WHEAT YIELD FORECAST BASED ON MODIS-NDVI – A CASE STUDY OF XINXIANG

 

Click To View

Additional Books


  • Evaluation of Aster Images for Character... (by )
  • Spatial and Temporal Variation of Japane... (by )
  • Approaches of National 3D Mapping: Resea... (by )
  • 3-d Feature-based Matching by Rstg Appro... (by )
  • Dynamic Trip Attraction Estimation with ... (by )
  • A Line-based Spectral Clustering Method ... (by )
  • Polarimetric Synthetic Aperture Radar Da... (by )
  • Conservation Plan Based on the Concept o... (by )
  • Integrated Technologies for Surveying Ar... (by )
  • A Task-oriented Disaster Information Cor... (by )
  • Calibration of a Multi-beam Laser System... (by )
  • Documenting Modern Mexican Architectural... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.