2 Object and study area
2.1.1 Research objects
The spatial distribution of shrimp production model (extensive shrimp and rice-shrimp). Especially, this study focuses about ineffective shrimp model (stopped producing) in dry season in 2016.
2.1.2 Research area
• Location
ThanhPhu is one of the BenTre’s districts where is in the Southeast of BenTre province (Mekong Delta), and it is the last part of Minh island, about 411 km2 natural area.
The East is the East sea with the shoreline is about 45km, the West next to 2 districts are Mo Cay Bac and Mo Cay Nam, in the North and South are separated Ba Tri district and Tra Vinh province by Co Chien and Ham Luong river.
• Regarding soil compositions
ThanhPhu was established by accretion of Ham Luong river and Co Chien river from many centuries ago. Now, ThanhPhu’s coastal zone is also moving toward the sea every year.
This district is one of BenTre’s three coastal area districts, the area consists of flat paddy fields, sand dunes and mangroves at the seaside. Total area of ThanhPhu is about 41,180 hectares. Almost land of this area is affected by salinization because of the influence of the sea tide. The rest from Thanh Phu central to Mo Cay district is the brackish area. Therefore, developing rice production is extremely difficult and yield is not high.