Land Consolidation in Turkey

8/19/2019 Land Consolidation in Turkey

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In these days, the land consolidation is anagricultural development tool with various aspectsof agricultural field planning. According to public

requirements, nature, environment, national roadplanning, mining etc. are taken into consideration.

LAND CONSOLIDATION

In restricted way, the term of land consolidation is

used as gathering the disorganized lands.

In the broad way, the definition of land consolidationcould be given as the investment of gathering the

disorganized lands with the investment of irrigation,drainage, transportation network etc.

Such a wide content makes relation with differentdisciplines in addition, makes the urban areapeople get involved the land consolidation.


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In Turkey, most of the farmers have insufficientagricultural land. Moreover these lands aredispersed with small parcels. The irrigation andtransportation network investment cannot be doneeasily to such areas.

On the other hand, the population growth rate ishigh in the rural area and, complete of this

population cannot be allocated other sectors.Therefore, the agricultural lands are splitted intosmall farms.

Years Number ofFarmers (Million)

Number ofParcels (Million)

Average

ParcelNumber

1952 2 5 15 7 6 28

1963 3 1 17 7 5 71

198 3 6 22 9 6 36


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This is a sample of the parcel pattern. Inpresent situation, generally most of parcelshaven’t direct road access and their shape isnot suitable for irrigation and mechanization.

Red lines are present road network and blacklines are boundary of the parcels.

Center of Village


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In the first way,In the first way,Geographical andGeographical andAlphanumericalAlphanumericalinformation, necessary forinformation, necessary forland consolidation, areland consolidation, aretransferred to computertransferred to computerand a suitable database areand a suitable database areformed.formed.

The database includes;The database includes;

Alphanumerical informationAlphanumerical informationabout farmers (Landabout farmers (Land

Owners)Owners) Alphanumerical informationAlphanumerical information

about project area.about project area.

Geographic informationGeographic informationabout project area.about project area.

The second way inThe second way inwhich computers arewhich computers areused is theused is thedetermination of thedetermination of thenew parcel texture.new parcel texture.

For this, a model isFor this, a model isformed;formed;

This model reachesThis model reachesthe solution bythe solution byminimizing parcelminimizing parcel

transfer intransfer inaccordance with theaccordance with thewishes of thewishes of thevillagersvillagers

In this study, applicability ratios of computers (GIS) inevery steps of a conventional land consolidation projectare searched.


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The soil index is not enough parameter to evaluate theparcels’ values before and after consolidation, so two moreparameters were used in this study.

1. Location of the parcels: It is very common that parcelswhich are located along to road or near to VillageCenter are more expensive then others. The projectarea was evaluated by taking location value of parcels

in to consideration and the location map was formed,digitized and saved as polygons.

2. Productivity map: Some times poor soil is very goodfor some plant. For example poor drainage condition is

not effect to cotton plantation badly. But, poordrainage is a bad factor for soil index. It means weneed to evaluate soil productivity out of soil groups.So the productivity map was formed and each polygon

named the value number of the productivity.


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Parcels area = 20,000 M2

Location index of the parcels = 0.60

Productivity index of the parcels = 0.80

Soil index index of the parcels = 0.72

The soil map, the location map and productivity map were overlaid andaverage soil index numbers were calculated by using NATCAT.

Average index = Soil index * 0.60 + Productivity index * 0.20 + Location index * 0.10Average parcel index = 0.72 * 0.60 + 0.80 * 0.20 + 0.60 * 0.10 = 0.652

Parcel value number = Average parcel index * Parcel areaParcel value number = 0.652 * 20,000 = 13,040

If this parcel moves to a new place which has different Parcel Index Number

For example; The new parcel’s index Number = 0.72134

New parcel area = 13,040 / 0.72134 = 18,077 m2 (The software can calculate this reversecalculation and the new parcel area was calculated by computer.)


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4. Elevation map is created from XYZdata by using the NATCAT.


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By using GIS techniques, it is easy to design theobjects such as road network on project area.

For this projectarea, the irrigationnetwork which isshown in pinkcolored line wasdesigned bydifferentgovernmentagency.

When the landconsolidation wasconsidered thenetwork in bluewas designed bytaking the

orchards’boundaries intoconsideration byusing GIStechniques.


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5. Block map: On present parcel pattern, the new road andchannel network were designed by taking the current situationmap and the elevation map in to consideration as shown below.

Block #3

Block #5

Block #7

Block #8

Block #9

Also the new road and channel networkconstitute the block boundaries.


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This part of the project area was covered by apricot trees. So road and channelnetwork were designed by taking the orchards into consideration.


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Block mapof that place.

The roadand channel

networkplanningwererestricted byorchards

boundaries.It seems thatit is not asuccessfulplanning,but it is very

successplanningaccordingthe currentsatiation.


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1. Cadastral map

2. Soil map

3. Current situation map

4. Elevation map

5. Block map

Geographical databasewere completed.


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Farmer'sNumber Surname / Name

Father'sName

ParcelNumber

ParcelArea

AllottedPortion

PortionParcelİndex

ParcelValue 5% off

Parcel'snet

value

14 ARPA DURSUN SIHO 0/350 14000 1 14000 0,74 10402 527 9875

15 ARSLAN KALENDER ISMAIL 0/322 31150 1 31150 0,84 26125 1324 24801

16 ASLAN SULTAN AZIZ 0/101 29350 1 29350 0,84 24654 1249 23405

0/508 56950 0,1875 10678 0,71 7580 384 7196

0/542 9600 0,1875 1800 0,71 1278 65 1213

1600 ASLAN SULTAN AZIZ 0/562 27050 0,1875 5072 0,81 4119 209 3910

0/563 54850 0,1875 10284 0,8 8270 419 7851

16 ASLAN SULTAN AZIZ 0/587 2350 0,1875 441 0,71 313 16 297 0/643 22500 0,1875 4219 0,72 3039 154 2885

G i v e n b y

c o m p u t e r

A d d e d

A d d e d

A d d e d

A d d e d

A d d e d

C a l c u l a t e d b y c o m .





Alphanumerical database before consolidation


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Farmer'sNumber Surname / Name

Father's

Name

Parcel

Number

Parcel's

net value

Block number of the

first demand

Block number of

the second

demand

Block number of the

third demand

14 ARPA DURSUN SIHO 0/350 9875 108 105 163

15 ARSLAN KALENDER ISMAIL 0/322 24801 125 132 198

16 ASLAN SULTAN AZIZ 0/101 23405

0/508 7196

0/542 1213


0/563 7851


0/643 2885

0/704 28

0/741 33

Also villagers demands have been added the database


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All the queries which the project staff needs can be done easily usingthis database.

D i l l i t h i t i ith i l ill


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During parcel planning step we have interview with every single villagers.

During interview, villagers were informed clearly by using the database.

Al it t k ti di t ill d d


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Also it was easy to make correction according to villagers demand.

Th d i hi h t d i th d t i ti f th


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For this, a model is formed.

This model reaches the solution by minimizing parcel transfer in

accordance with the wishes of the villagers.

The second way in which computers are used is the determination of thenew parcel design.

Instead ofmathematicalfunctions, this

model worksbased on thedemands of theland owners.For instance, ifthere is a huge

demand on aparticularblock, priorityis given to theold land

owners.

Th d l b d


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The model was based on ;

1. The villagers demand,

2. Block Priority Number,

3. Block Demand Priority Number.

1. The villagers demand;

During the interview all land owner must decide the newlocation of his/her parcels. He/she has three choices for thelocation of his/her parcels. The first alternative has morepriority then the second one and the second alternative hasmore priority then the third one.

The persons who can get parcels from more than one blockare given index number same as the number of the blocksthat possibly he/she can get parcels from.

2 Block Priority Number;


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2. Block Priority Number;

The cadastral

map and the

block map were

overlaid and

which parcel

was located inwhich block was

perceived by

computer.

For instance;


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For instance;

A person has parcels, 1.0 Ha on the 17th block, 3.0 Ha on the 8th block,5.0 Ha on the 3rd block and, 7.0 Ha on the 30th block. For this person, theblock priority numbers for these blocks are computed as follows.

Block no: 17 8 3 30

1.0 Ha 3.0 Ha 5.0 Ha 7.0 Ha

Total area: 16.0 Ha

17. Block: (1.0 / 16.0) x 100 = 6.25

8. Block: (3.0 / 16.0) x 100 = 18.75

3. Block: (5.0 / 16.0) x 100 = 31.2530. Block: (7.0 / 16.0) x 100 = 43.75

According to this calculation, the highest block priority coefficient is43.75. If we distribute the fields just based on the block priority number

this person would be get his fields on the 30th block.

Block Demand Priority Number


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. Block Demand Priority Number

Block #3

Block #5

Block #7

Block #8

Block #9

The villagers’ demands for

each block were registered

before,

by using this information total

demand for each block were

calculated. Also the block area

is known.

The total demand for the block

was divided the block area.

If BDPN > 1

it means, the block was

demanded more then it’s size.

If BDPN = 1it means, the block was

demanded as it’s size.

If BDPN < 1

it means, the block was

demanded less then it’s size.

Delivery Algorithm;


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Delivery Algorithm;

Delivery of the blocks starts with the block with the highest “Block Demand

Priority Number”.

Block no 160

We have three group of people for eachblock.

1. Person who has “Block Priority

Number” and he /she has demand for this

block.

2. Person who has “Block Priority

Number” and he /she hasn’t demand for

this block.

3. Person who hasn’t “Block Priority

Number” and he /she has demand for thisblock.

The model controls the second groups’

position first. If their “Block Priority

Number” for this block is greater then

50%;

For these people;


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For these people;

Their first choices are controlled in the view point of block demand priority

number.

For this particular block if the block demand priority number is less than 0.90

these persons are not taken into consideration. Because, this block is notrequested by the other villagers and, most probably, these persons can get the

land from this block.

If the block demand priority number is greater than 0.90 then their first choice is

taken into account for this block and the process are done based on this choice.

Before the consolidation, at least 50% of the lands of these persons are in this

block. Also, there is too much demand for this block. Therefore, priority must be

given the former owners.


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When the deliver begins, block value number and the parcel value number of

person who has the highest priority for this block are compared. If the block

value number is greater than the persons value number then the persons parcel

will be in this block. If the block value number is less than persons value

number and this person has not an index number this person is ignored at thatstep. If the person has index number, the same amount of area is left in this

block for this person and the process is continued. End of the delivery process,

if the Block Value Number is greater then zero, this amount of land are given to

people who have index numbers.

Now the model has the three group of people’s information.

For the block which has “Block Demand Priority Number” is greater then 1,

The question is who will take priority for the block?All people have demand for the block. But their “Block Priority Number” are not equal.

So the model gives priority from biggest “Block Priority Number” to smaller.


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Before the consolidation


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The former cadastral map and new road and irrigation network


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The new parcels

The new parcels pattern.


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The new parcels pattern.

After the project;

Average parcel size is bigger thanbefore,

All parcels have direct road andwater access.

Farmers have less number ofparcels.

Less transportation Between parcel

and farm.

The summary of the project area


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Number

of village

Project

area (ha)

Number

of

farmers

Populati

on

Number of

parcels before

the project

Average size

of the parcels

before the

project (Ha)

Number of

parcels after

the project

Average size

of the parcels

after the

project (Ha)

Consolidatio

n Rate

3 6,051 543 3309 3125 1.94 1188 5.10 62

0

500

1000

1500

2000

2500

3000

3500

umber of parcels before

the project

umber of parcels after

the project

0

1

2

3

4

5

6

Average size of the parcels

before the project Ha)

Average size of the parcels

after the project Ha )

The summary of the project area

The infrastructures.


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The new parcels

Roads Roads

TerracingThe new parcels

Open derange channel

Irrigation channel

Center of Village

The infrastructures.

All development activities were completed with consolidation.

Rippering

Land Consolidation in Turkey

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