Impacts of salt intrusion on paddy land in Quang Thai commune, Quang Dien district, Thua Thien Hue province

Abstract

This study assesses the impacts of salt intrusion on rice land in Quang Thai commune, Quang Dien district, Thua Thien Hue province. By using various methods, such as household interviews, soil and water sampling, and mapping with ArcGIS 10.3, we came to the following conclusions: (i) the saline intrusion occurs typically from April to August; (ii) the common signs of salinization include young rice plants dying,  leaf tips drying, slow growth, rotten roots, low yield, and soil hardening; (iii) the Summer-Autumn crop is affected more than the Winter-Spring one; (iv) average yield in saline intrusion fields accounts for 81.82% that of fields without saline intrusion; (v) profit of saline intrusion fields is lower than that of fields without saline intrusion.