Progress of land ecosystem studies with geo information and space technology ...
Accurate satellite mapping for government agricultural management
1. Tatiya Chuentragun Geo-Informatics and Space Technology Development Agency (tatiya@gistda.or.th ) Accurate Satellite Mapping for Governmental Agricultural Management
2. Northern Region Central Region North Eastern Region Southern Region Overview : 510,000 km 2 : 4 Regions : 76 Provinces Background
3. หน่วย : ไร่ Unit: km 2 . Source: Office of Agricultural Economics http://www.oae.go.th/download/article/article_20090417181149.html การใช้ที่ดินเพื่อการเกษตรของประเทศไทย ระดับประเทศ ภาค จังหวัด ปี 2549 เนื้อที่ถือครองทางการเกษตร เนื้อที่ เนื้อที่ / เนื้อที่ถือครอง ที่อยู่อาศัย ที่นา ที่พืชไร่ ที่ไม้ผลและ ที่สวนผักและ ที่ทุ่งหญ้า ที่รกร้าง เนื้อที่ เนื้อที่ ทั้งหมด ป่าไม้ ทางการเกษตร ไม้ยืนต้น ไม้ดอก เลี้ยงสัตว์ ทำการเกษตรอื่นๆ นอกการเกษตร 320,696,888 104,744,331 130,290,717 3,609,998 63,551,124 27,249,969 28,626,646 1,236,938 1,132,083 2,290,823 2,593,136 85,661,840 Agricultural Land use in Thailand (2006) Overall Area Forest Agricultural Use Non-Agriculture Total Residence Rice Field Field Crops Permanent Crops Vegetable/ Flower Pasture Abandoned Others 513,115.02 167,590.93 208,465.15 5,776.00 101,681.80 43,599.95 45,802.63 1,979.10 1,811.33 3,665.32 4,149.02 137,058.94 32.66% 40.63% 19.82% 17.42% 26.71%
4. Major Agricultural Products Field crops: Rice, Field Corns, Cassavas, Sugar Canes, Soybeans, Green Beans, Peanuts, Dragonfly, Sorghums, Shallots, Onions, Garlic, Potatoes, Pineapple Permanent crops: Rubber plant, Oil Palm, Coffee, Longan, Durian, Mangosteen, rambutan, lichee, Manggo, Coconut, Long kong, Tangerine Cattle and Inland Fishery: Pork, Chicken, Beef, Milk, Fresh-Water Fish etc. http:// www.oae.go.th/main.php?filename=agri_production
5. Source: National Statistical Office of Thailand Age > 15 Thai Population Categorized by Type of Labor Force (2008) Non-labor Force 14.20 Millions 27.4% Labor Force 37.7 Millions 72.6% Students4.23M House work 4.66M Others 5.31M Employed 37.02M Non-Agricultural WF 22.32M Agricultural WF 14.70M Unemployed 0.52M Off-season 0.16M
11. 29 January 2009 THEOS MS 15 m . Forest fire from THEOS
12. Agricultural application (Thailand/GISTDA) Sensor : Optical Resolution: few high, medium --- low Coverage : Large area Accuracy : moderate Spectral : Pan, MS
14. Horizontal Accuracy of SPOT-5 และ THEOS imagery Product Levels Horizontal Accuracy SPOT-5 THEOS Level 1 A < 30 m < 300 m (190 m) Level 1 B < 30 m < 300 m (190 m) Level 2A < 30 m < 300 m (190 m) Level 2B GCPs GCPs Level 3 (Ortho-image) GCPs GCPs
15. Horizontal Accuracy of Cadastral Maps (DOL) Land Title 1:4,000 1:1,000 NS 3K 1:5,000 1 mm on Printed media on each scale 4 -5 m accuracy
19. From those processes, the followings may be acquired: : Approximate areas of cropping : Locations of those crops : Health of those crops : etc. Whose land parcels were those crops are planted in ? Private Own??? Public Own???
20. Objectives - To generate ortho-satellite imagery with consistent sufficient positional accuracy as ready-to-use and fundamental data for all RS and agricultural applications and integration with cadastral maps. - To assess and determine positional accuracy and potential suitable map scale for available satellite imagery.
21. To support Agricultural Policy in Thailand operational tools are required to: - Assist farmers to better manage their parcels and get more revenues - Estimation of yields to anticipate export market capacity - Effective monitor agricultural practices and assess environmental stress (pollution, irrigation) - etc. http://www.gisdevelopment.net/application/agriculture/overview/ma06_215abs.htm
33. SPOT-5 Ortho-Image Horizontal Accuracy RMSE x = 2.844 m RMSE y = 2.700 m RMSE r = 3.921 m NSSDA(CE95) = 6.787 m NMAS(CE90) = 5.951 m Map Scale 1:15,000 (ASPRS)
34. THEOS Ortho-Image Horizontal Accuracy Preliminary Result RMSE x = 1.962 m RMSE y = 1.720 m RMSE r = 2.609 m NSSDA(CE95) = 4.515 m NMAS(CE90) = 3.959 m Map Scale 1:8,000 (ASPRS)
35. WorldView-2 Ortho-Image Horizontal Accuracy RMSE x = 0.58 m RMSE y = 0.80 m RMSE r = 0.99 m NSSDA(CE95) = 1.72 m NMAS(CE90) = 1.49 m Preliminary Result Map Scale 1:4,000 (ASPRS)
39. Associated Government Organization Royal Forest Department & Department of National Park, Wildlife, and Plant Conservation Office of Agricultural Economics Forest & National Parks Agricultural Information Agricultural Policy & Development Agricultural Research
40. Associated Government Organization Agricultural Land Reform Office Land Development Department Land Allocation for Farmers Develop & maintain infrastructure Enhance farmers living & increase income Land use
41. GISTDA: Geo-Informatics and Space Development Agency Satellite image and geo-informatics products provider and support for those organizations and government’s policies. The Department of Lands (DOL) Title deed and land right issuance, Land registration and demarcation