JEQ
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Abstract Freely available
Right arrow Full Text Free
Right arrow Full Text (PDF) Free
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Related articles in JEQ
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via ISI Web of Science (2)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Brus, D. J.
Right arrow Articles by Jansen, M. J. W.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Brus, D. J.
Right arrow Articles by Jansen, M. J. W.
Agricola
Right arrow Articles by Brus, D. J.
Right arrow Articles by Jansen, M. J. W.
Related Collections
Right arrow Statistics
Right arrow Geostatistics
Right arrow Uncertainty Analysis
Right arrow Heavy Metals
Right arrow Biometrics

Uncertainty and Sensitivity Analysis of Spatial Predictions of Heavy Metals in Wheat

D. J. Brus*,a and M. J. W. Jansenb

a Alterra, Green World Research, P.O. Box 47, 6700 Wageningen, the Netherlands
b Biometris, Bornsesteeg 47, 6708 PD Wageningen, the Netherlands



View larger version (20K):

[in a new window]
  		Fig. 1. Fitted versus measured log(Cd) concentration in wheat in mg kg–1 dry weight.

 


View larger version (19K):

[in a new window]
  		Fig. 2. Fitted versus measured log(Pb) concentration in wheat in mg kg–1 dry weight.

 





View larger version (203K):

[in a new window]
  		Fig. 3. Predicted Cd concentration in wheat (mg kg–1 dry weight): (A) 5th percentile, (B) median, and (C) 95th percentile of 1000 simulated Cd concentrations per node. (D) Safe areas, that is, areas where 95th percentile is below the food quality standard of Cd in wheat (0.235 mg kg–1 dry weight).

 




View larger version (152K):

[in a new window]
  		Fig. 4. Predicted Pb concentration in wheat (mg kg–1 dry weight): (A) 5th percentile, (B) median, and (C) 95th percentile of 1000 simulated Pb concentrations per node.

 


View larger version (20K):

[in a new window]
  		Fig. 5. Cumulative frequency distribution (over nodes) of probabilities that Cd and Pb in wheat exceed their quality standards.

 




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Crop Science
Vadose Zone Journal Journal of Plant Registrations
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
Copyright © 2004 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.