Presentation On "analysing The Impact Of Building Activities,in Agriculture Lands, Using Gis Technique.gharyan Libya".

  • Uploaded by: ravi shankar
  • 0
  • 0
  • June 2020
  • PDF

This document was uploaded by user and they confirmed that they have the permission to share it. If you are author or own the copyright of this book, please report to us by using this DMCA report form. Report DMCA


Overview

Download & View Presentation On "analysing The Impact Of Building Activities,in Agriculture Lands, Using Gis Technique.gharyan Libya". as PDF for free.

More details

  • Words: 1,831
  • Pages: 25
Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

Point Data Age of Building

Vector Data

Agriculture suitability

Vector Data IPM Projection

AUGUST 2009

Cell based Modelling Zonal Functions

Before- 75

Building development in Agricultural lands by the year 2025

95- 05’

75- 84’

85- 94’

Density Analysis

Zonal Functions Cell based Modelling

Raster Data Age of building

Vector Data

Agriculture suitability

Decadal trend from 1975- 2005

Analysing the impact of building activities, in agriculture lands using GIS techniquesGharyan, Libya. 3rd Generation Planning Project

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

AUGUST 2009

Introduction: Gharyan is the main city located in the Gharyan Sub-region, which lies 700 m above sea level. It is at a distance of about 80 km southwest of Tripoli and about 90 km north of Mizdah. Gharyan is in the centre of agriculturally developed area in Jabal Nafusah Plain where annual rain fall of 250mm which is sufficient for crop cultivation.

Mizdah

3rd Generation Planning Project

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

Non Mountaneous areas

AUGUST 2009

Functional Structure of settlement around Gharyan Al Urban

Mountaneous & arid areas

Abu Zayan

Abu Zayyan Abu Zayyan Al Janub Abu Zayyan Al Waset Sidi Khalifah Aosaden

Tagrinah

Taghrinnah Wadi Al Alarbaa

Al Asabiyah

Al Hinshir Ash Shrwirif Esnan Jandubah Al Daher

Al Urban

Al Kasba (Al Urban) Al Bidaa

Al Qwasim

Gharyan

Al Aziziyah

Ensir

Ar Rabtah

Ar Rabitah Al Wadi Al Hai Gteis

Kiklah

Taghrinnah Abu zyan

Al Asabiyah Kiklah

Al Gwalish Kiklah Al Gharbiyah Kiklah Ash Shmaliyah Kiklah Al Wadi Kiklah Al Waset Abu Madi Ash Shrwirif

Al Qwasim

Al Qwasim Al Qwasim Al Wadi Al Qwasim Al Waset Al Bosiri Abu Ghilan Al Wahda Ash Shaykh

Bir Al Ghanam Ensir

3rd Generation Planning Project

Nssir Sidi Entat Wadi Al Alarbaa Gut Al Reh

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

Why this study?

Libyan agriculture encounters a number of difficulties and one important aspect is reduction in agricultural lands due to urbanization. For the chosen study area of Gharyan the trend of urbanization in the fertile agricultural lands are mapped for past decades. The study gives a clear picture on how the building activities are slowly eating up the agricultural lands. Furthermore, the output from IPM model is used as an input to evaluate the possible conversion of agricultural lands into building developments by the year 2025. 3rd Generation Planning Project

AUGUST 2009

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

The Gharyan Agglomeration: Gharyan city tends to cluster with the settlements Sidi Musa, Taghrinnah, Kaamoun and Antat. These urbanurban mixed areas form into an urban agglomeration with a total population of about 50,000 inhabitants. This agglomeration may grow upto 100,000 inhabitants in 2025.

3rd Generation Planning Project

AUGUST 2009

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

Data: The data used for the study are, 1. Age of the buildings from inventory,

building

2. IPM model projections 2025 of population spread in Gharyan from the sub regional plans, 3. Agriculture land suitability data from agricultural department. There are around 1569 Hac. of moderately fertile agricultural lands which is a sizable amount of land to carry out sustainable agriculture. 3rd Generation Planning Project

AUGUST 2009

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

Analysis: Selection is made on the building inventory by using selection by attribute for various decades. This point data on the age of building is converted to raster data and equated with agricultural land suitability raster data using raster calculator (age of building layer minus the agricultural suitability).

3rd Generation Planning Project

AUGUST 2009

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

3rd Generation Planning Project

AUGUST 2009

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

AUGUST 2009

Trend Analysis - 1975 3rd Generation Planning Project

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

AUGUST 2009

Trend Analysis - 1985 3rd Generation Planning Project

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

AUGUST 2009

Trend Analysis - 1995 3rd Generation Planning Project

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

AUGUST 2009

Trend Analysis - 2005 3rd Generation Planning Project

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

AUGUST 2009

What will be the state of Agricultural lands in 2025?

3rd Generation Planning Project

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

Predicting the future: Same technique is carried out on Agricultural suitability layer and IPM (converted to raster )model’s output to map the building developments in agricultural lands by 2025.

3rd Generation Planning Project

AUGUST 2009

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

If the same trend of urbanization continues in the agricultural areas without being checked, by 2025 there will be very little or no land available within the study area for agriculture production.

3rd Generation Planning Project

AUGUST 2009

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

To conserve the remaining agricultural area the above study was vital along with studies on slope, growth direction, urban sprawl, vacant lands, etc., to identify new areas for urban development.

3rd Generation Planning Project

AUGUST 2009

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

AUGUST 2009

Part -2

3rd Generation Planning Project

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

AUGUST 2009

Development Concept: Agriculture city

1. Selection of Developable area driven mainly by land suitability and current urban development trends. 2. Prime focus on Agriculture activities in Gharyan, through improvement of accessibility, good agricultural support services, etc.

1970’s

3. Urban development planned in areas not suitable for agriculture so as to protect the agricultural lands from conversions but controlling sprawl. 4. Integrated development of small scale settlements or clusters utilizing appropriate transport linkages to the main settlement as well as equitable distribution of infrastructure. Alternative - A •Development Concept. 3rd Generation Planning Project

2006

2025

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

AUGUST 2009

The Gharyan Master plan Boundary is divided into six different Zones and Development norms are specified for these six Zones which will guide and shape the future development. ZONE -1 ISOLATION ZONE

ZONE -4 URBAN ZONE

Isolation Zone consists of lands which are not habitable including lands unsuitable due to topography, hydrology or vegetation.

Urban Zone consists of a mixed use but primarily residential urban fabric. It may have a wide range of building types: single, courtyard and rowhouses.

ZONE -2 AGRICULTURE ZONE

ZONE -5 URBAN CORE ZONE

Agriculture Zone consists of agricultural lands in open or cultivated states. These include woodland, agricultural land, grassland, and irrigable desert.

Urban Core Zone consists of the highest density and height, with the greatest variety of uses, and civic buildings of importance.

ZONE -3 AGRICULTURE-RESIDENTIAL ZONE

ZONE -6 URBAN CENTRE ZONE

Agriculture- Residential Zone consists of sparsely settled lands in open or cultivated areas.

Urban Center Zone consists of higher density mixed use building that accommodate commercial, administrative,retail, offices, rowhouses and apartments.

3rd Generation Planning Project

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

ZONE -1 ISOLATION ZONE

AUGUST 2009

ZONE -6 URBAN CENTRE ZONE

ZONE -2 AGRICULTURE ZONE

ZONE -5 URBAN CORE ZONE

ZONE -3 AGRICULTURE-RESIDENTIAL ZONE ZONE -4 URBAN ZONE

3rd Generation Planning Project

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya. ZONE -1 ISOLATION BELT

ZONE -2 AGRICULTURE

ZONE -3 AGRICULTURE RES.

AUGUST 2009 ZONE -4 URBAN AREAS

ZONE -5 URBAN CORE

ZONE -6 URBAN CENTRE

3450 hac.

Proposed Area’s in various Zones:

1075hac.

752 hac.

983 hac. 546 hac.

97 hac.

ZONE -1 ISOLATION ZONE

3%

ZONE -6 URBAN CENTRE ZONE

1%

39 hac.

Strategy to accommodate the population 1.Densification of the Existing urban areas (2GMP). - Identifying vacant lands for densification. - Urban renewal programmes to redensify areas.

ZONE -2 AGRICULTURE ZONE

30%

ZONE -5 URBAN CORE ZONE

16 %

2.Developing smaller settlemnts within 3G study area. - Smaller setttlements like SIdi Antat, Kaamun, Sidi Musa will be planned and densified.

ZONE -3 AGRICULTURE-RESIDENTIAL ZONE

22 %

ZONE -4 URBAN ZONE

3.New development on sloped terrain (0-10 deg. slope).

28 %

- The sloped mountains areas will be reserve for fu ture development.

3rd Generation Planning Project

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya. ZONE -1 ISOLATION BELT

ZONE -2 AGRICULTURE

AUGUST 2009

ZONE -3 AGRICULTURE RES.

ZONE -4 URBAN AREAS

ZONE -5 URBAN CORE

ZONE -6 URBAN CENTRE

Existing Population 2005 in various Zones: 100%

35% 0%

40%

15%

7%

3%

0%

ZONE -1 ISOLATION ZONE

0 per/ha.

ZONE -6 URBAN CENTRE ZONE

38 per/ha. Existing Population 2005

ZONE -2 AGRICULTURE ZONE

3 per/ha.

ZONE -5 URBAN CORE ZONE

34 per/ha.

ZONE -3 AGRICULTURE-RESIDENTIAL ZONE

9 per/ha.

ZONE -4 URBAN ZONE

16 per/ha. Existing Density 2006 3rd Generation Planning Project

46,215

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya. ZONE -1 ISOLATION BELT

ZONE -2 AGRICULTURE

AUGUST 2009

ZONE -3 AGRICULTURE RES.

ZONE -4 URBAN AREAS

ZONE -6 URBAN CENTRE

ZONE -5 URBAN CORE

Proposed Population 2025 in various Zones: 100%

49%

0%

42%

7%

0%

3%

0%

ZONE -1 ISOLATION ZONE

0 per/ha.

ZONE -2 AGRICULTURE ZONE

0 per/ha.

ZONE -6 URBAN CENTRE ZONE

77 per/ha.

Existing Population 2005

Projected Population 2025

103,904

ZONE -5 URBAN CORE ZONE

46,215

79 per/ha.

Projected Population 2005 - 2025 ZONE -3 AGRICULTURE-RESIDENTIAL ZONE

9 per/ha.

ZONE -4 URBAN ZONE

51 per/ha. Proposed Density 2025

Year

Population Phasing

2006 2015 2020 2025

46,215 77,314 89,629 103904

3rd Generation Planning Project

Alternative - A •Accomodating population change.

Population No. of Houses

Phase I 21099 Phase II 12315 Phase III 14275

5800 2100 3000

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

2006

AUGUST 2009

2025 3rd Generation Planning Project

Analysing the impact of building activities, in agriculture lands using GIS techniques for Gharyan, Libya.

“An

environment

that

can’t

AUGUST 2009

be

changed invites its own destruction. We prefer a world that can be modified progressively against a background of valued remains, a world in which we can leave a personal mark alongside the marks of history.” “ What time is this place?” - Kevin Lynch Thats the end of the story... 3rd Generation Planning Project

Related Documents


More Documents from ""