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Methodology for assessing determinants of manure use in urban areas of Africa

Paul Suman, Eric Thys, André Mfoukou-Ntsakala, Laouali Ali, Mamadou Ouedraogo, Peter Van den Bossche, Guido Van Huylenbroeck UGent, Dirk Berkvens and Niko Speybroeck (2010) WASTE MANAGEMENT & RESEARCH. 28(12). p.1076-1086
abstract
The objectives of this study were to identify the major determinants (e.g. zootechnical and socio-economic parameters) of manure management practised by urban livestock keepers. Data were collected from four single-visit, multi-object surveys in three cities of Africa. The livestock keepers were classified either as 'good user' or 'bad user' of manure depending on how they use the manure. The results of this study indicate that the habit of manure utilization shows geographical differences. In general, livestock keepers engaged in agricultural activities are good manure users. Furthermore, manual workers, traders or the self-employed are better manure users than other professional groups. The manure utilization varies also in function of the livestock numbers. In Brazzaville, the habit of selling animals influenced manure management positively. Experience of keeping livestock before the civil war in Brazzaville was also a determining factor of manure use in the post-war urban livestock keeping in 2001. When designing policies to reduce the environmental effects of urban livestock keeping, the highlighted factors can assist city planners to understand how urban livestock keepers use manure. Using the non-parametric classification tree method CART, two approaches were used to select an optimal classification of 'bad' manure users: the 'Cook and Goldman rule' and the 'Classification with different misclassification cost ratios' method. The optimal tree was selected by using receiver operating characteristics curve information. This method can be useful in assessing other aspects of waste management.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
receiver operating characteristic curve, Classification and regression tree, misclassification, cost ratio, socio-economic status, manure
journal title
WASTE MANAGEMENT & RESEARCH
Waste Manage. Res.
volume
28
issue
12
pages
1076 - 1086
Web of Science type
Article
Web of Science id
000285411200004
JCR category
ENGINEERING, ENVIRONMENTAL
JCR impact factor
1.222 (2010)
JCR rank
26/45 (2010)
JCR quartile
3 (2010)
ISSN
0734-242X
DOI
10.1177/0734242X09356016
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1096225
handle
http://hdl.handle.net/1854/LU-1096225
date created
2011-01-10 11:11:20
date last changed
2015-06-17 09:21:02
@article{1096225,
  abstract     = {The objectives of this study were to identify the major determinants (e.g. zootechnical and socio-economic parameters) of manure management practised by urban livestock keepers. Data were collected from four single-visit, multi-object surveys in three cities of Africa. The livestock keepers were classified either as 'good user' or 'bad user' of manure depending on how they use the manure. The results of this study indicate that the habit of manure utilization shows geographical differences. In general, livestock keepers engaged in agricultural activities are good manure users. Furthermore, manual workers, traders or the self-employed are better manure users than other professional groups. The manure utilization varies also in function of the livestock numbers. In Brazzaville, the habit of selling animals influenced manure management positively. Experience of keeping livestock before the civil war in Brazzaville was also a determining factor of manure use in the post-war urban livestock keeping in 2001. When designing policies to reduce the environmental effects of urban livestock keeping, the highlighted factors can assist city planners to understand how urban livestock keepers use manure. Using the non-parametric classification tree method CART, two approaches were used to select an optimal classification of 'bad' manure users: the 'Cook and Goldman rule' and the 'Classification with different misclassification cost ratios' method. The optimal tree was selected by using receiver operating characteristics curve information. This method can be useful in assessing other aspects of waste management.},
  author       = {Suman, Paul and Thys, Eric and Mfoukou-Ntsakala, Andr{\'e}  and Ali, Laouali and Ouedraogo, Mamadou and Van den Bossche, Peter and Van Huylenbroeck, Guido and Berkvens, Dirk and Speybroeck, Niko},
  issn         = {0734-242X},
  journal      = {WASTE MANAGEMENT \& RESEARCH},
  keyword      = {receiver operating characteristic curve,Classification and regression tree,misclassification,cost ratio,socio-economic status,manure},
  language     = {eng},
  number       = {12},
  pages        = {1076--1086},
  title        = {Methodology for assessing determinants of manure use in urban areas of Africa},
  url          = {http://dx.doi.org/10.1177/0734242X09356016},
  volume       = {28},
  year         = {2010},
}

Chicago
Suman, Paul, Eric Thys, André Mfoukou-Ntsakala, Laouali Ali, Mamadou Ouedraogo, Peter Van den Bossche, Guido Van Huylenbroeck, Dirk Berkvens, and Niko Speybroeck. 2010. “Methodology for Assessing Determinants of Manure Use in Urban Areas of Africa.” Waste Management & Research 28 (12): 1076–1086.
APA
Suman, P., Thys, E., Mfoukou-Ntsakala, A., Ali, L., Ouedraogo, M., Van den Bossche, P., Van Huylenbroeck, G., et al. (2010). Methodology for assessing determinants of manure use in urban areas of Africa. WASTE MANAGEMENT & RESEARCH, 28(12), 1076–1086.
Vancouver
1.
Suman P, Thys E, Mfoukou-Ntsakala A, Ali L, Ouedraogo M, Van den Bossche P, et al. Methodology for assessing determinants of manure use in urban areas of Africa. WASTE MANAGEMENT & RESEARCH. 2010;28(12):1076–86.
MLA
Suman, Paul, Eric Thys, André Mfoukou-Ntsakala, et al. “Methodology for Assessing Determinants of Manure Use in Urban Areas of Africa.” WASTE MANAGEMENT & RESEARCH 28.12 (2010): 1076–1086. Print.