a score system study for land-use planning 土地利用規劃之評分系統研究

A score system study for land-use planning土地利用規劃之評分系統研究

Presenter ： Song-Yi YangAdviser ： Louis L. Tsai

Date ： 2010/10/07

1

Outline

IntroductionObjectivesLiteratures ReviewsMethodsPreliminary ResultsConclusionFuture Works

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Introduction

Environmental Impact Assessment (EIA) System

( 行政院環保署 )

Barrett et al. (2007)3

Introduction

Leopold Matrix System (Leopold, 1971)

Environmental / Social Conditions

Description

(Ai) =1~10 ， (Ij) =1~10

Actions / Factors Magnitude (Ai)

Importance (Ij)

( ) i 1 ~ 1 ~i

j

Agrade index n m

I j，

Ai

Ij

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Objectives

To establish a score system for environmental impact assessment by using Leopold matrix.

To evaluate local pollutant potential of urban and industrial area.

5

Study Area

6

Literatures Review

Environmental impact assessment (EIA) EIA factors includes natural 、 social environment 、 pollutions 、

ecology 、 economic 、 culture…, it considered by effect area Tzilivakis et al. (2005) ; Larsen et al. (2010) ; Munier (2004).

EIA Methods in Cheng (2006) mentioned that Leopold matrix can show the effect for specific factors. (Whitlatch, 1976)

Da-tan of Guan-yin area and Jong-fu of Lu-ju area were polluted by cadmium contaminant by chemical factories (Cheng et al., 1994); it could move away by river flow (Hsu and Lo, 2000) .

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MethodsData Collection

Area Separation

EIA Factors

Statistical Analysis Preliminary EIA

Matrix

Weighting of Factors

Factor Grading

EIA Matrix and Score Area Grades

Results and Discussions

Conclusions and Future works

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Methods

CF (Contamination Factors)We can assess heavy metal pollutions by pollution Index

such as CF (Contamination Factors)Wang et al. (2008) ; Wu and Cao (2010)

[ ]

[ ]avg

bg

CCF

C

Contamination Factor (CF)

Description

CF<1 Low

1<CF<3 Moderate

3<CF<6 Considerable

CF>6 Very High9

Methods PSI (Pollutant Standard Index)

PSI

PM10 SO2 CO O3 NO2

Unit : μg/m3 Unit ：ppb

Unit ： ppm Unit ： ppb Unit ： ppb

Good 50 50 30 4.5 60 -

Moderate 100 150 140 9 120 -

Unhealthful 200 300 350 15 200 600EPA (Air Pollution Control Act )

( )Hi Lop Lo Lo

Hi Lo

I IPSI C BP I

BP BP

Cp: Concentration of pollutantp

BPHi: Breakpoint concentration ≧ Cp ， IHi: PSI corresponding to BPHi

BPLo: Breakpoint concentration C≦ p ， ILo: PSI corresponding to BPLo 10

Methods

RPI (River Pollutant Index)

Unpolluted Light Medium High

DO (mg/L) >6.5 6.5~4.4 4.5~2.0 <2.0

BOD5 (mg/L) <3.0 3.0~4.9 5.0~15.0 >15

SS (mg/L) <20 20~49 50~100 >100

NH3-N (mg/L) <0.5 0.5~0.99 1.0~3.0 >3.0

Score 1 3 6 10

RPI <2.0 2.1~3.0 3.1~6.0 >6.0

EPA (Water Pollution Control Act )

4

4

ii

PRPI

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Waste disposal (t/day person)‧ Data of ESI for Taipei-city including

waste outputs. (Lee et al., 2002)

Methods

Total Waste urban populationC

day county population

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Preliminary Results

0102030405060708090

Jan-07

Feb-07

Mar-07

Apr-07

May-07

Jun-07

Jul-07 Aug-07

Sep-07

Oct-07

Nov-07

Dec-07

PSI

新興

觀音

蘆竹

大園

桃園

湖口

Monthly coastal air survey station PSI distribution13

0102030405060708090

Jan-08

Feb-08

Mar-08

Apr-08

May-08

Jun-08

Jul-08

Aug-08

Sep-08

Oct-08

Nov-08

Dec-08

PSI

新興

觀音

蘆竹

大園

桃園

湖口0

102030405060708090

Jan-09

Feb-09

Mar-09

Apr-09

May-09

Jun-09

Jul-09

Aug-09

Sep-09

Oct-09

Nov-09

Dec-09

PSI

新興

觀音

蘆竹

大園

桃園

湖口

Primary Results

River RPI Changed by Season14

Preliminary Results

River CF Changed by year 15

Preliminary Results

Urban Area

2007 Waste Disposal (t/day ‧

person)

2008 Waste Disposal (t/day ‧

person)

2009 Waste Disposal (t/day ‧

person)

Da-Yuan Guo-Lin 0.077 0.067 0.046

Lu-Ju Da-Ju 0.065 0.056 0.058

Da-Yuan City 0.105 0.090 0.090

Guan-Yin Tsou-Ta 0.054 0.065 0.067

Guan-Yin Shin-Po 0.047 0.047 0.048

Guan-Yin City 0.030 0.029 0.029

Shin-Wu City 0.078 0.073 0.069

Yang-Mei Fu-Gan 0.040 0.035 0.033

Annual waste collected by urban plan area

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Preliminary Results

MatrixFactors Actions & Points

River

CF CF<2 2<CF<3 3<CF<4 4<CF<5 5<CF<6

6<CF<10

CF>10

10 9 7 5 4 3 1

RPIRPI<2 2<RPI<3

3<RPI< 3.5

3.5<RPI<4

4<RPI< 4.5

4.5<RPI<5

5<RPI<6

RPI>6

10 9 7 6 5 4 2 1

Air PSIPSI<40

40<PSI<45

46<PSI<50

51<PSI<55

56<PSI<60

61<PSI<70

71<PSI<80

PSI> 80

10 9 8 6 4 3 2 1

WasteWaste

Disposal (t/ day‧person)

C<0.030.03<C<0.05

C<0.07 C<0.09 C>0.09

8 6 5 4 2

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0

5

10

15

20

25

大園果林

蘆竹鄉大竹

大園都市計畫區

觀音鄉草漯區

觀音鄉新坡區

觀音都市計畫區

新屋都市計畫區

楊梅富岡區

CF(Total Metal)

Waste disposal

RPI

PSI

Preliminary Results

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Conclusion

CF, PSI, RPI and Waste disposal can be combined to assess local environmental impact.

Tsou-Ta urban area exhibits higher environmental impact; whereas Fu-gang urban area exhibits lower environmental impact.

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Future Works

Finding more factors for the matrix in this study.

Using statistical analysis to infer weighting of factors.

Plotting time-space distribution graph and evaluate pollutant potential for urban and industrial areas.

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Thanks for your attention!!

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