web gis based erosion modeling and management system in...

Jae Yang* and Kyung Jae LimPast-President of IUSS

Dept. of Biological Environment

Kangwon National Univ., Korea

(yangjay@kangwon.ac.kr)

WEB GIS Based Erosion Modeling and Management System in Korea

March 22 2017 SSORii EC JRC Soil Erosion Modeling 1

Surface Soil Information Portal System

Topography

March 22 2017 SSORii EC JRC Soil Erosion Modeling 2

Rainfall (R)

March 22 2017 SSORii EC JRC Soil Erosion Modeling 3

Agricultural land area having moderate to severe water erosion risk(1990-2010) (OECD, 2013)

Soil Loss MT/ha/yr

OECD Criteria

0-6 Tolerable

6-11 Low

11-22 Moderate

22-32 High

33- Severe

March 22 2017 SSORii EC JRC Soil Erosion Modeling 4

Average soil erosion 32ton/ha/yr> OECD average 11 ton/ha/yr Arable land: 1.8 M ha (20% of total land) Forest: 65%

Integrated Soil Quality and Value Assessment WEB GIS Soil Erosion Prediction & Warning System Korean Model of USLE Long-term Soil Erosion Assessment Environmental Impact Assessment for Surface Soil WEB GIS-based Surface Soil Management System

Phase I : 2014.4-2018.3 US$5M

Implementation of action plan for soil erosion assessment and control in Korea

March 22 2017 SSORii EC JRC Soil Erosion Modeling 5

Research Center of Surface Soil Resources: Inventory and Integration (SSORii)

22 March 2017 SSORii 6

Web-GIS Based Surface Soil Management System

Soil Value Assessment Manual

Erosion Type/CostEconomical Soil Management

Soil Erosion Prediction System

Web-GIS Soil Management System

March 22 2017 SSORii EC JRC Soil Erosion Modeling 7

D/B Maps Policy

Education

Awareness

BMP

Soil Quality and Soil

Erosion

Assessments

Ecosystem Service

Soil Quality

Policy Making

Stakeholders

Index Data

→ Soil Quality Parameters

→

Soil Ecosystem Function →

Integrated Soil Quality

(SQUAL)Chemical, physical & biological data Soil loss

(USLE A)

22 March 2017 SSORii 8

Surface Soil Information Portal System

What is surface soil?

Education Contents

Soil Erosion Prediction System

DataSurface Soil Information at Watershed Level

Surface Soil Information Portal System

22 March 2017 SSORii 9

1. Soil Erosion Prediction by KUSLE

22 March 2017 SSORii 10

KUSLE Surface Soil Information System

KUSLE

Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.

22 March 2017 SSORii 11

II. Surface Soil Erosion Prediction and BMP

Short-term System

Single-Plot

Multi-Plots

Soil Function Click

Click

Soil ErosionSafe Area

Soil ErosionConcerned Area

Current Grade

Improve Grade

Soil ErosionConcerned Area

BMP Click

Soil ErosionConcerned Area

BMP Suggestion

22 March 2017 SSORii 12

III. Soil Erosion at Watershed Level

Watershed Information

Watershed AnalysisSoil Erosion at Watershed

Level

22 March 2017 SSORii 13

Land Use

Forest -> Agricultural Field : Change Land Use• Groundwater: 0.844 0.831 (Normalized Value)• Erosion: 30.65ton/ha/yr 31.74 ton/ha/yr

Click the Land Use Change

IV. Land Use Assessment System

Current Land Use: ForestForest

Agricultural Field

Groundwater Erosion

22 March 2017 SSORii 14

V. Mobile Service

• ICT technology convergence

• Expansion of field applications

• Maximize usability

THANK YOU!