THE MANAGEMENT OF WATER RESOURCES IN LARGE RICE FIELDS MAKLUEAMAI SUBDISTRICT, SUNG NOEN DISTRICT, NAKHONRATCHASIMA WITH A SPATIAL DATADASE

Abstract

This research article aims to 1. to establish a spatial database and land use model for the large rice field group, Maklua Mai Sub-district, Sung Noen District, Nakhon Ratchasima Province, and 2. analyze the appropriate amount of water for rice production according to the physical condition of the area at the joint plot level with model farmers. Research method was conducted by collecting and creating a spatial database on land use to analyze water use for rice production appropriately according to the physical condition of the area at the plot level together with the model farmers. The results of the research showed that; 1. spatial databases and land use patterns of large plots of rice fields. Maklua Mai Subdistrict, Sung Noen District, Nakhon Ratchasima Province have a survey and can store geographic coordinates in the real area in a database in the form of a spatial database and feature-oriented database of 10 data layers. An application of geographic information system technology for the determination of water content in rice fields was in accordance with physical characteristics and irrigation water delivery zones namely 1. the area of the rice field above Mittraphap Road Or the fields in the Lam Ta Khong Basin (Zone A) in the irrigation area of Lam Ta Khong. There were all farmers according to the project, there were 34 plots, with an area of approximately 320.19 rai, with a need for water for cultivation at a height of 5 centimeters, using a 2-inch water pump, it takes about 10 hours, and the total amount of water is approx. 25,614.80 cubic meters. 2. The area of the rice field at the bottom of Mittraphap Road or paddy fields and there are some areas where upland (zone B) is in the water delivery area of the Subpradu Reservoir. There are all farmers according to the project, totaling 61 plots, with an area of approximately 653.74 rai, with a need for water for cultivation at a height of 5 centimeters using a 2-inch water pump. It takes about 10 hours and requires a total amount of water approximately 52,299.20 cubic meters, and 3. the area of the rice field on the southern side of the Sub-District, or the Khok field (Zone C), which is not in the water delivery area of the Sub Pradu Reservoir. There are all farmers according to the project, there is 1 plot, with an area of approximately 11.73 rai, with a need for water for cultivation at a height of 5 centimeters, using a 2-inch pump, it takes about 10 hours and requires a total amount of water approximately 938.40 cubic meters.