Simulation of soil erosion and nutrient impact using an integrated system dynamics model in a watershed in Taiwan

Hsin-Cheng Yeh, Chao An Wang, Hui Ching Yu

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

In recent years, erosion, sediment, and nutrient pollution have become issues of major concern in Taiwan. Keelung River, as it flows across the Taipei metropolitan area, is one of the most important rivers with regard to these issues. This research aims to compute and simulate erosion, sediment yield, and resulting nutrient pollution, together with related economic factors. Related physical models were programmed using a system dynamics software package Vensim®, for convenience in scenario designs and simulations. GIS software ArcView® was employed to integrate digitized themes that contain data necessary for further computation and applications. EXCEL® was also used to link ArcView and Vensim and made an interactive computational model. Five submodels, i.e., the soil erosion model, the sediment transportation model, the runoff model, the nutrient model, and the economic model, were included in this integrated model. Through this model, it was estimated that, according to the hydrological and geographical data from last five years, the total annual amounts of soil erosion, sediment yield, and nutrient load are 292,327 tons, 101,661 tons, and 1428 tons, respectively. These results can be compared with those derived from models in other researches. As the model in this research was driven by a system dynamics core, scenario simulations can be carried out based on various combinations of system parameters. This offers the model additional flexibility and applicability.

Original languageEnglish
Pages (from-to)937-948
Number of pages12
JournalEnvironmental Modelling and Software
Volume21
Issue number7
DOIs
Publication statusPublished - 2006 Jul 1

Fingerprint

Watersheds
soil nutrient
Nutrients
soil erosion
Erosion
Dynamic models
watershed
Soils
simulation
Sediments
ArcView
nutrient
sediment yield
Dynamical systems
Pollution
Rivers
erosion
software
pollution
Economics

Keywords

  • EXCEL
  • GIS
  • Nutrient
  • Scenario simulation
  • Sediment transportation
  • Soil erosion
  • System dynamics
  • Taiwan
  • Vensim

ASJC Scopus subject areas

  • Software
  • Environmental Engineering
  • Ecological Modelling

Cite this

Simulation of soil erosion and nutrient impact using an integrated system dynamics model in a watershed in Taiwan. / Yeh, Hsin-Cheng; Wang, Chao An; Yu, Hui Ching.

In: Environmental Modelling and Software, Vol. 21, No. 7, 01.07.2006, p. 937-948.

Research output: Contribution to journalArticle

@article{23f3cddba6b7426ab5b8f761aac143ca,
title = "Simulation of soil erosion and nutrient impact using an integrated system dynamics model in a watershed in Taiwan",
abstract = "In recent years, erosion, sediment, and nutrient pollution have become issues of major concern in Taiwan. Keelung River, as it flows across the Taipei metropolitan area, is one of the most important rivers with regard to these issues. This research aims to compute and simulate erosion, sediment yield, and resulting nutrient pollution, together with related economic factors. Related physical models were programmed using a system dynamics software package Vensim{\circledR}, for convenience in scenario designs and simulations. GIS software ArcView{\circledR} was employed to integrate digitized themes that contain data necessary for further computation and applications. EXCEL{\circledR} was also used to link ArcView and Vensim and made an interactive computational model. Five submodels, i.e., the soil erosion model, the sediment transportation model, the runoff model, the nutrient model, and the economic model, were included in this integrated model. Through this model, it was estimated that, according to the hydrological and geographical data from last five years, the total annual amounts of soil erosion, sediment yield, and nutrient load are 292,327 tons, 101,661 tons, and 1428 tons, respectively. These results can be compared with those derived from models in other researches. As the model in this research was driven by a system dynamics core, scenario simulations can be carried out based on various combinations of system parameters. This offers the model additional flexibility and applicability.",
keywords = "EXCEL, GIS, Nutrient, Scenario simulation, Sediment transportation, Soil erosion, System dynamics, Taiwan, Vensim",
author = "Hsin-Cheng Yeh and Wang, {Chao An} and Yu, {Hui Ching}",
year = "2006",
month = "7",
day = "1",
doi = "10.1016/j.envsoft.2005.04.005",
language = "English",
volume = "21",
pages = "937--948",
journal = "Environmental Modelling and Software",
issn = "1364-8152",
publisher = "Elsevier BV",
number = "7",

}

TY - JOUR

T1 - Simulation of soil erosion and nutrient impact using an integrated system dynamics model in a watershed in Taiwan

AU - Yeh, Hsin-Cheng

AU - Wang, Chao An

AU - Yu, Hui Ching

PY - 2006/7/1

Y1 - 2006/7/1

N2 - In recent years, erosion, sediment, and nutrient pollution have become issues of major concern in Taiwan. Keelung River, as it flows across the Taipei metropolitan area, is one of the most important rivers with regard to these issues. This research aims to compute and simulate erosion, sediment yield, and resulting nutrient pollution, together with related economic factors. Related physical models were programmed using a system dynamics software package Vensim®, for convenience in scenario designs and simulations. GIS software ArcView® was employed to integrate digitized themes that contain data necessary for further computation and applications. EXCEL® was also used to link ArcView and Vensim and made an interactive computational model. Five submodels, i.e., the soil erosion model, the sediment transportation model, the runoff model, the nutrient model, and the economic model, were included in this integrated model. Through this model, it was estimated that, according to the hydrological and geographical data from last five years, the total annual amounts of soil erosion, sediment yield, and nutrient load are 292,327 tons, 101,661 tons, and 1428 tons, respectively. These results can be compared with those derived from models in other researches. As the model in this research was driven by a system dynamics core, scenario simulations can be carried out based on various combinations of system parameters. This offers the model additional flexibility and applicability.

AB - In recent years, erosion, sediment, and nutrient pollution have become issues of major concern in Taiwan. Keelung River, as it flows across the Taipei metropolitan area, is one of the most important rivers with regard to these issues. This research aims to compute and simulate erosion, sediment yield, and resulting nutrient pollution, together with related economic factors. Related physical models were programmed using a system dynamics software package Vensim®, for convenience in scenario designs and simulations. GIS software ArcView® was employed to integrate digitized themes that contain data necessary for further computation and applications. EXCEL® was also used to link ArcView and Vensim and made an interactive computational model. Five submodels, i.e., the soil erosion model, the sediment transportation model, the runoff model, the nutrient model, and the economic model, were included in this integrated model. Through this model, it was estimated that, according to the hydrological and geographical data from last five years, the total annual amounts of soil erosion, sediment yield, and nutrient load are 292,327 tons, 101,661 tons, and 1428 tons, respectively. These results can be compared with those derived from models in other researches. As the model in this research was driven by a system dynamics core, scenario simulations can be carried out based on various combinations of system parameters. This offers the model additional flexibility and applicability.

KW - EXCEL

KW - GIS

KW - Nutrient

KW - Scenario simulation

KW - Sediment transportation

KW - Soil erosion

KW - System dynamics

KW - Taiwan

KW - Vensim

UR - http://www.scopus.com/inward/record.url?scp=33748108993&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33748108993&partnerID=8YFLogxK

U2 - 10.1016/j.envsoft.2005.04.005

DO - 10.1016/j.envsoft.2005.04.005

M3 - Article

AN - SCOPUS:33748108993

VL - 21

SP - 937

EP - 948

JO - Environmental Modelling and Software

JF - Environmental Modelling and Software

SN - 1364-8152

IS - 7

ER -