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Soil loss and erosivity index of Padang Besar soil series (Petroferric Tropudult) I: Possible application of Cate-Nelson methods, Anderson-Nelson method and simplified ANOVM for the determination of critical value

Knowledge of the critical value for soil erosion data is useful in terms of soil conservation and management. An experiment was carried out in Universiti Pertanian Malaysia on Padang Besar soil series (Petroferric tropudult). The bare plot soil loss and rainfall characteristics were determined aft...

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Main Authors: Goh, Kah Joo, Talib, Jamal
Format: Article
Language:English
English
Published: 1984
Online Access:http://psasir.upm.edu.my/id/eprint/2282/1/Soil_loss_and_erosivity_index_of_Padang_Besar.pdf
http://psasir.upm.edu.my/id/eprint/2282/
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spelling my.upm.eprints.22822013-05-27T07:00:03Z http://psasir.upm.edu.my/id/eprint/2282/ Soil loss and erosivity index of Padang Besar soil series (Petroferric Tropudult) I: Possible application of Cate-Nelson methods, Anderson-Nelson method and simplified ANOVM for the determination of critical value Goh, Kah Joo Talib, Jamal Knowledge of the critical value for soil erosion data is useful in terms of soil conservation and management. An experiment was carried out in Universiti Pertanian Malaysia on Padang Besar soil series (Petroferric tropudult). The bare plot soil loss and rainfall characteristics were determined after every storm for a year. Soil loss and erosivity index (K.E. > 10) were fitted with different models. Various approaches were then adapted to study their suitability in obtaining critical values for soil erosion data. In this paper, an example showing the application of techniques and their principles is given. Results indicate that all the four procedures provide similar critical values despite their different principles. It is further showns that new Gate-Nelson technique and simplified ANOVM (Q' = 0.001) result in higher R 2 (0.84**) than the best quadratic model (R 2 = 0.54**). However, due to the principle of obtaining critical values for soil erosion data, it may suffice to use simplified ANOVM (ex = 0.001). 1984 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/2282/1/Soil_loss_and_erosivity_index_of_Padang_Besar.pdf Goh, Kah Joo and Talib, Jamal (1984) Soil loss and erosivity index of Padang Besar soil series (Petroferric Tropudult) I: Possible application of Cate-Nelson methods, Anderson-Nelson method and simplified ANOVM for the determination of critical value. Pertanika, 7 (2). pp. 5-12. English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description Knowledge of the critical value for soil erosion data is useful in terms of soil conservation and management. An experiment was carried out in Universiti Pertanian Malaysia on Padang Besar soil series (Petroferric tropudult). The bare plot soil loss and rainfall characteristics were determined after every storm for a year. Soil loss and erosivity index (K.E. > 10) were fitted with different models. Various approaches were then adapted to study their suitability in obtaining critical values for soil erosion data. In this paper, an example showing the application of techniques and their principles is given. Results indicate that all the four procedures provide similar critical values despite their different principles. It is further showns that new Gate-Nelson technique and simplified ANOVM (Q' = 0.001) result in higher R 2 (0.84**) than the best quadratic model (R 2 = 0.54**). However, due to the principle of obtaining critical values for soil erosion data, it may suffice to use simplified ANOVM (ex = 0.001).
format Article
author Goh, Kah Joo
Talib, Jamal
spellingShingle Goh, Kah Joo
Talib, Jamal
Soil loss and erosivity index of Padang Besar soil series (Petroferric Tropudult) I: Possible application of Cate-Nelson methods, Anderson-Nelson method and simplified ANOVM for the determination of critical value
author_facet Goh, Kah Joo
Talib, Jamal
author_sort Goh, Kah Joo
title Soil loss and erosivity index of Padang Besar soil series (Petroferric Tropudult) I: Possible application of Cate-Nelson methods, Anderson-Nelson method and simplified ANOVM for the determination of critical value
title_short Soil loss and erosivity index of Padang Besar soil series (Petroferric Tropudult) I: Possible application of Cate-Nelson methods, Anderson-Nelson method and simplified ANOVM for the determination of critical value
title_full Soil loss and erosivity index of Padang Besar soil series (Petroferric Tropudult) I: Possible application of Cate-Nelson methods, Anderson-Nelson method and simplified ANOVM for the determination of critical value
title_fullStr Soil loss and erosivity index of Padang Besar soil series (Petroferric Tropudult) I: Possible application of Cate-Nelson methods, Anderson-Nelson method and simplified ANOVM for the determination of critical value
title_full_unstemmed Soil loss and erosivity index of Padang Besar soil series (Petroferric Tropudult) I: Possible application of Cate-Nelson methods, Anderson-Nelson method and simplified ANOVM for the determination of critical value
title_sort soil loss and erosivity index of padang besar soil series (petroferric tropudult) i: possible application of cate-nelson methods, anderson-nelson method and simplified anovm for the determination of critical value
publishDate 1984
url http://psasir.upm.edu.my/id/eprint/2282/1/Soil_loss_and_erosivity_index_of_Padang_Besar.pdf
http://psasir.upm.edu.my/id/eprint/2282/
_version_ 1643822273278246912
score 13.211869

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