Location and Territory
Koh Khanun Subdistrict, Phanom Sarakham District Chachoengsao Province which is located in the north of Phanom Sarakham District,  with an area of ​​99.69 square kilometers, or approximately  62 , 309  rai, with the following territories:

On the north side, next to Ban Song Subdistrict, Phanom Sarakham District Chachoengsao Province
On the south side, next to Lat Krathing Subdistrict Sanam Chaikhet District Chachoengsao Province
On the east side, next to Khao Hin Son Subdistrict Phanom Sarakham District Chachoengsao Province and Khu Yai Mee Sub-district Sanam Chaikhet District Chachoengsao Province
On the west side, adjacent to Tha Than Subdistrict, Phanom Sarakham District  and Nong Haen Subdistrict Phanom Sarakham District Chachoengsao Province

Koh Khanun Subdistrict has a main road, which is National Highway No. 331 ( Sattahip Line – Khao Hin Son )  through Village No. 6,7,9,12,14 – Chachoengsao – Kabin Buri Road ( 304) through Village No. 15 – Phanom Sarakham Road – Sanam Chai Khet ( 3245) , through to 3,4,6,7 – paved asphalt concrete house number 64 lines – road reinforced concrete, reinforced concrete totaling 29 lines – dirt road or road of crushed rock. Nuan 137 lines – 12 dirt roads (Koh Khanun Subdistrict Administrative Organization)

Section of governance
Koh Khanun Subdistrict, Phanom Sarakham District Chachoengsao Province The administration is divided into  15 villages, divided into 2 parts as follows:

1. The administrative area is under the responsibility of the Koh Khanun Subdistrict Administrative Organization. There are 15 villages as follows:

Village No. 2 Ban Sak (Partial)                                       Village No. 9 Ban Nong Prue
Village No. 3 Ban Pak Klong Muang (Partial)                    Village No. 10 Ban Huai Phlu
Village No. 4 Ban Nong Suea                                          Village No. 11 Ban Hin Dat
Village No. 5 Ban Laem Takhro                                       Village No. 12 Ban Nong E Thon
Village No. 6 Ban Na Noi                                                Village No. 13 Ban Don Khi Lek
Village No. 7 Ban Chai Khueng                                       VillageNo. 14  Ban Nong Bo
Village No. 8 Ban Rai Don                                              Village No. 15 Ban Huai Sam
Refer : Koh Khanun Subdistrict Administrative Organization, 2018

2. The administrative area is under the responsibility of the Koh Khanun Subdistrict Administrative Organization. It consists of the village area as follows:

Village No. 1 Sawmill
Village No. 2 Ban Sak (Partial)
Village No. 3 Ban Pak Klong Muang (Partial)
Refer : Koh Khanun Subdistrict Municipality, 2019

History Information
Koh Khanun Sub-District is an old sub-district of Phanom Sarakham District, established around 1894. It was originally a small village located along a canal. There is a condition similar to that of a flooded island. There are both wild jackfruit and jackfruit houses up to a large number, hence the name   ” Koh Jackfruit ” . in the area along the banks of the canal on both sides In the old days, most of the transportation was used to travel back and forth by waterways. Today it is called Khlong Tha Lat. Which still flows through Tambon Koh Khanun and many other sub-districts. Later, people from other villages have migrated to settle and clear the fields. In lowland areas, farming and gardening in upland areas And the mills with the force of a nearby canal, this has made the water so they can trade up to a commercial district.                         There is a market,   boats are hired to carry goods, whether it is timber   , sawn timber,   forest products,   or field crops, to sell to different districts.   And the provinces of Koh Khanun are a source of wholesale products of many kinds.   Currently, the area is approximately   94.3 square kilometers. (Koh Khanun Subdistrict Municipality, 2016)

Topography
The topography of the area is plateau and lowland.

Location and territory, Koh Khanun sub-district, Phanom Sarakham district Chachoengsao Province

Slope, Koh Khanun Subdistrict, Phanom Sarakham District Chachoengsao Province

Climate
The two types of monsoons that prevail over Thailand are the northeast monsoon, which is the wind that brings coldness from China to Thailand during the winter. The influence of this wind will cause Chachoengsao Province to experience cold and dry conditions. with the southwest monsoon, which prevails during the rainy season, which makes the air moist and rainy

Winter starts from mid-October to mid-February. Summer starts around mid-February and ends around mid-May. Rainy season starts around mid-May to mid-October.The average temperature throughout the year is 27.9 degrees Celsius, the average high temperature is 33.0 degrees Celsius, and the average low temperature is 22.8 degrees Celsius.

Rainwater contour, Koh Khanun sub-district, Phanom Sarakham district Chachoengsao Province

Current land use conditions
Condition of land use in Koh Khanun Subdistrict Phanom Sarakham District Chachoengsao Province The survey by the Land Use Condition Analysis Group ( 2021 ) consists of various types of land use as follows:
1) Community areas and buildings with an area of 11,167 rai or 17.17 percent of the sub-district area.

2) Agricultural area with an area of 45,868 rai or 70.52 percent of the sub-district area consists of various agricultural land utilization as follows:
2.1) The area of the sub-district is 11,712 rai or 18.01 percent of the sub-district, ie deserted field, occupying an area of 550 rai or  0.85 %, and rice field, having an area of  11,162 rai or 17.16 percent.
2.2) Field crops covering an area of 14,092 rai or 21.67  percent  of the sub-district area, including abandoned fields, corn, sugarcane, cassava, pineapple
2.3) Perennial plants, covering an area of 15,986 rai or 24.58 percent   of the sub-district area, such as perennials mixed with para rubber, oil palm, eucalyptus,  teak,   neem, pine, Pradiphat,  acacia, Pradu,  bamboo grown for trade, and taco.
2.4) Fruit trees with an area of 1,223 rai or 1.88 percent  of the sub-district area, such as abandoned/degraded fruit trees, mixed fruit trees, coconut, mango, cashew, banana, papaya, jackfruit, santol, and lime.
2.5) Horticultural crops covering an area of  181 rai or 0.28 percent of the sub-district area, such as vegetables and ornamental plants.
2.6) Pastures and animal houses with an area of 1,218 rai or 1.87 percent  of the sub-district area. including pastures and livestock houses, poultry house and  pig house.
2.7) The aquaculture facility has an area of 1,422 rai or 2.19 percent of the sub-district area, including abandoned aquaculture facilities. mixed aquaculture facility fish farming, facility shrimp and farming facility.
2.8) Integrated agriculture with an area of 34 rai   or 0.05 percent of the sub-district area, i.e. mixed farming.

3) Forest area covers an area of 348 rai or 0.54 percent of the sub-district area, consisting of complete deciduous forest.
4) Water source area, covering an area of 1 , 847 rai or 2.88 % of the sub-district area, consisting of rivers, creeks, canals, swamps, lakes, reservoirs, ponds in the fields. and irrigation canals.

5) Miscellaneous areas with an area of ​​5 , 782 rai or 8.89 percent of the sub-district area consists of natural grasslands. Alternating grasslands, shrubs/groves, lowland areas, old mines,  clay pits, reclamation areas and garbage dumps.

Economy and Society
Society
1) Population
            Koh Khanun Subdistrict, Phanom Sarakham District Chachoengsao Province consists of 15 villages, divided into 14 villages in the Koh Khanun Subdistrict Administrative Organization, with the 2nd and 3rd villages partially included. and Koh Khanun Sub-District Municipality, amounting to 1 village, and some of the 2nd and 3rd villages. From the evidence of the civil registration of the Department of Provincial Administration The Interior Ministry in 2562 found that people living in the district with a total population of the island, Jack, 16 238 cases classified as 7 male , 927 female 8 cases , 311 cases were mostly in the age range 41-60 years, the number of households with a total of 6,279. Household (Department of Provincial Administration , 2019) 1,159 households or 18.46% were farmer households registered with the Department of Agricultural Extension. They were households engaged in other occupations. and 5,120 households or 81.54 percent of farmers’ households that are not registered with the Department of Agricultural Extension ( Department of Agricultural Extension , 2019).

2) General information
Koh Khanun Subdistrict is divided into 2 administrative areas as follows:

1. Koh Khanun Subdistrict Municipality Located in the east of Chachoengsao Province. It is about 38 kilometers from Chachoengsao Province, with a total area of ​​3.60 square kilometers. It consists of the area in Village No. 1, Village No. 2, and Village No. 3, with the north adjacent to Village No. 2, Tha Than Sub-district, Phanom Sarakham District. South adjacent to Village No. 3, Koh Khanun Subdistrict, Phanom Sarakham District East adjacent to Village No. 5 and Village No. 8, Koh Khanun Subdistrict, Phanom Sarakham District and west adjacent to Tha Than Subdistrict Phanom Sarakham District There is a provincial highway number 3076 that cuts through the city center. There are 2 main roads that are used to communicate with nearby areas, namely Highway No. 331 and Highway No. 304 (Chachoengsao-Kabin Buri) in the municipality, there are 39 roads / alleys (Koh Khanun Subdistrict Municipality , 2021).
2. Koh Khanun Subdistrict Administrative Organization Located in the east of Chachoengsao Province. It is about 38 kilometers from Chachoengsao province, with a total area of ​​96.30 square kilometers. It consists of some areas in Moo 2, Part No. 3, and Moo 4 to 15, with the north adjacent to Koh Khanun Subdistrict Municipality.  Phanom Sarakham District South adjacent to Hua Samrong Subdistrict Administrative Organization, Plaeng Yao District, east adjacent to Khao Hin Son Subdistrict Administrative Organization Phanom Sarakham District and west next to Nong Haen Subdistrict Administrative Organization   Phanom Sarakham District has the main road, which is Highway No. 331 (Kabin Buri – Plaeng Yao) through Village No. 6, 7, 9, 12 and 14, Highway No. 304 (Chachoengsao – Kabin Buri) through Village No. 15, Highway No. 3245 (Phanom Sarakham – Sanam Chaikhet) ) through Moo 3 , 4, 6and 7 reinforced concrete roads, 29 roads, asphaltic concrete paved roads, 64 roads, 137 gravel roads or Hin Khluk roads, and 12 clay roads (Koh Khanun Subdistrict Administrative Organization , 2021).

3) Water sources and Created water sources
Koh Khanun sub-district has a source of drinking water, drinking water, or water for consumption from Khlong Tha Lat. Floating canals deliver water from Si Yat Dam. Huai Hin Lat Canal Nong Krot Pond, Huai Cha Kam, and various canals in the village There is water supply in the village, ground water and shallow wells. Including in some villages, the provincial water supply area has been expanded. The Phanom-Sarakham branch has been partially serviced, including Moo 3 , 6 , 7 and 8 (Koh Khanun Subdistrict Administrative Organization , 2020).

4) Educational institution
There are schools under the government as follows: 8 primary schools, 1 secondary school, 1 vocational college, 1 non-formal and informal education center in Koh Khanun Sub-District(NSO), 8 child development centers and 2 private schools.

5) Infrastructure and Public Area Services
There are 2 health promoting hospitals, 1 sub-district administrative organization office, 1 municipal office, and   10 temples (Maha Nikaya).

6) Major attractions
Koh Khanun Subdistrict There is an important tourist attraction, Wat Phongsaram, which is an old temple of Chachoengsao Province. There are Luang Pho Ngam and Luang Pho Jui. It is worshiped by locals and devotees in the surrounding area.

7) Model farmers and volunteer soil healers
Koh Khanun Sub-district is an area that expands the results of the Khao Hin Sorn Royal Development Study Center. There are model farmers who have embraced the Sufficiency Economy Philosophy as a principle for their livelihood and occupation. There is a learning center for sufficiency economy in various fields. and a volunteer soil doctor at the village level

7.1) Sufficiency Economy Learning Center (Khao Hin Son Royal Development Study Center , 2021 )
1) Sufficiency Economy Learning Center in Integrated Agriculture Mr. Somchot Boonmee House No. 110,   Village No. 5, Koh Khanun Sub-district, Phanom Sarakham District Chachoengsao Province.

2) Sufficiency Economy Learning Center in Integrated Agriculture, Mrs. Napha Khemuk, House No. 32/1,    Village No. 5, Koh Khanun Sub-district, Phanom Sarakham District Chachoengsao Province

3) Integrated Agricultural Sufficiency Economy Learning Center Mrs. Supthawin Suksiri, House No. 169/3, Village No. 10, Koh Khanun Sub-district, Phanom Sarakham District Chachoengsao Province and is a volunteer soil doctor at the village level, Village No. 10

4) Sufficiency Economy Learning Center on Frog Raising Mr. Samroeng Wongsurin House No. 364    Village No. 13, Koh Khanun Sub-district, Phanom Sarakham District Chachoengsao Province

7.2) model farmer (Khao Hin Son Royal Development Study Center , 2021)
1) Mrs. Sakonsupha Saman, a model farmer in the new theory of agriculture and is a volunteer soil doctor at village level, Village No. 4, House No. 402, Village No. 4, Koh Khanun Sub-district, Phanom Sarakham District Chachoengsao Province.

2) Mrs. Chonchaya Chanrawin, model farmer in agroforestry, house number 92/2, Village No. 6, Koh Khanun Sub-district, Phanom Sarakham District Chachoengsao Province.

3) Mrs. Boonpo Iampa, a model farmer in organic guava cultivation, house number 364, Village No. 7, Koh Khanun Sub-district, Phanom Sarakham District. Chachoengsao Province.

4 ) Mr. Jamin Neewong, a model farmer in new theory agriculture, house number 5/1, Village No. 9, Koh Khanun Sub-district, Phanom Sarakham District. Chachoengsao Province.

5) Mr. Sathaporn Wantaewin, a model farmer in integrated agriculture and earthworm farming. and is a volunteer soil doctor at village level, Village No. 11, House No. 139, Village No. 11, Koh Khanun Sub-district, Phanom Sarakham District Chachoengsao Province.

6) Mr. Chalit Chuensuang, a model farmer in date palm cultivation, house number 118/8, Village No. 11, Koh Khanun Sub-district, Phanom Sarakham District. Chachoengsao Province.

7 ) Mrs. Chalam Boonsawad, a model farmer in New Theory Agriculture, House No. 404, Village No. 12, Koh Khanun Sub-district, Phanom Sarakham District Chachoengsao Province.

8) Mr. Chamras Suriwong, a model farmer in organic rice production, house number 403/1, Village No. 12, Koh Khanun Sub-district, Phanom Sarakham District. Chachoengsao Province.

9) Mrs. Apinya Nam Nuea, a model farmer in integrated agriculture, house number 108, Village No. 12, Koh Khanun Sub-district, Phanom Sarakham District. Chachoengsao Province.

10) Mr. Paiboon Wantana, a model farmer in New Theory Agriculture and is a volunteer soil doctor at village level, Village No. 14, House No. 16, Village No. 14, Koh Khanun Sub-district, Phanom Sarakham District Chachoengsao Province.

11) Mr. Rat Niwat, a model farmer in date palm cultivation, house number 308, Village No. 12, Koh Khanun sub-district. Phanom Sarakham District Chachoengsao Province.

7.3) Volunteer Soil Doctor (Land Development Station Chachoengsao Province , 2020)
Volunteer soil doctors in Koh Khanun sub-district are as follows:

1) Mr. Phitchanat Plaiduang, Volunteer soil doctor at sub-district and village level, Village No. 12

2) Mr. Mongkol Tomsuwan, Volunteer soil doctor at village level, Village No. 2

3) Mrs. Ratanakorn Siriartkonghan, Volunteer soil doctor at Village Level, Village No. 3

4) Mr. Narong Jindaporn, Volunteer Doctor at Village Level, Village No. 5

5) Mr. Charan Khamkaew , Volunteer Doctor at Village Level, Village No. 6

6) Mr. Somchat Nilsiri, Volunteer Doctor at Village Level, Village No. 7

7) Mr. Chob Thiparat doctor soil volunteer village level among the eight.

8) Mr. Manat  Butbunruang, Volunteer soil doctor at village level, Village No. 9

9) Mr. Somrak Khemthong, Volunteer soil doctor at village level, Village No. 13

10) Mrs. Champa Saeton, Volunteer Earth Doctor at Village Level, Village No. 15

8) Agricultural land holding 
The Department of Agricultural Extension in 2019 conducted a survey of the land holding area according to the plot location of farmer households who informed the improvement of agricultural activities each year in Koh Khanun Subdistrict. There were 896 households of farmers holding area of 15 , 894 acres or 15.20 hectares, the average land holding per household. By the nature of the land ownership of farmers, there will be land ownership, rent, and public use or free. (Department of Agricultural Extension , 2019)

9) Economic
Koh Khanun Subdistrict is divided into 2 administrative areas as follows:

– Economic conditions of Koh Khanun Subdistrict Municipality Most of the population is engaged in trading. followed by general contracting occupations, other occupations, company employees personal business Government officials and state enterprises and agriculture, respectively (Department of Community Development , 2019 ). Since Koh Khanun Sub-District Municipality is a community on the waterfront and within the municipality there are many piers, it is suitable for trading. in agriculture The majority of the population is gardening, cassava planting, rice cultivation, fishery and livestock, while raising animals for household consumption such as ducks and chickens.

– Economic condition of Koh Khanun Subdistrict Service Organization Administration Area Most of the population are general contractors. followed by agriculture Company employees, trading, other occupations, employees,     government officials and state enterprises and private businesses, respectively (Department of Community Development , 2019 ), which most of the area of ​​Koh Khanun sub-district is for agriculture. There are many natural sources of water for consumption. household consumption including for use in agriculture Most of the population is farming, farming, gardening, raising animals and fishing.

In Koh Khanun sub-district, most of the area is characterized by highland and lowland areas. has a hot and humid climate making it suitable for farming Most of the farmers in Koh Khanun sub-district are farming. agronomy short-lived crops And animal husbandry in Koh Khanun sub-district, there are many types of animals such as buffaloes, cows, pigs, chickens, ducks and frogs.

9.1) Occupation
From the data from the Department of Community Development (JorPorPor.) in 2019, it was found that the population in Koh Khanun sub-district will engage in general employment followed by agriculture and trading, respectively. Koh Khanun sub-district has an area   The highlands and lowlands are suitable for farming. Most of the population is farming, farming, gardening, fishing and livestock. There are additional occupations such as making wreaths and sandalwood flowers for the elderly club in Koh Khanun sub-district. The sewing and painting group of gold threads (Moo 9, Ban Nong Prue) also has important economic crops such as rice, maize, cassava, factory sugar cane, oil palm and rubber (Department of Agricultural Extension , 2019).

9.1.1) Farming occupations include rice planting, cassava, rubber, fishery occupations, such as raising frogs, herbivorous fish, and white shrimps. Animal husbandry occupations include buffaloes, cattle, pigs, ducks, chickens, and frogs, which are raised in small numbers. There are 16 major parts , divided into pig farm 6 of the chicken farm 10 places.(Koh Khanun Subdistrict Service Organization , 2018 )

 9.1.2) industry Information from the Property Tax Administration of District 255-year-old Jack Island 9, a number of industrial enterprises, 22 of (Service Organization Tambon Koh Jack , 2018).

9.2) Labor
In Koh Khanun sub-district, both Thai and foreign workers come to live and work in factories in nearby industrial zones. By traveling, there is a shuttle service of various companies. pass within the district Most of the workers come to live in rented rooms or rental houses.

9.3) Agricultural water resources
Koh Khanun sub-district has the main natural water sources that flow through the sub-district throughout the year, namely Khlong Tha Lat, Nong Phong, Nong Ta Muang, Khlong Lom and various canals within the village. used for producing water for agriculture.

9.4 Income-Expense
From the inforamtion from the Department of Community Development (JorPorPor.) in 2019, it was found that the average income of the people in Koh Khanun sub-district   has an average household income of 177,922.96 baht per year, average household expenditure 162,303.70 baht per year, average personal income 77,233.44 baht per year, personal expenses. Average 70,453.38 baht per year, where household income is greater than household expenses 15 , 619.26 baht per year , and personal income is more than 6,780.06 baht per year (Department of Community Development , 2019).