This study uses the data collected from a household survey on 100 farmers in Lung Ngoc Hoang Nature reserve. Economic efficiency in the present study was estimated from stochastic profit frontier function. Farm household makes an average profit of about 18,33 and 8,02 million dongs in Winter-Spring and Summer-Autumn crop, respectively. | Assessing economic efficiency and impacts of global warming, acidification, eutrophication of rice production in Lung Ngoc Hoang nature reserve, Hau Giang province AGU International Journal of Sciences – 2019, Vol 7 (3), 65 – 74 ASSESSING ECONOMIC EFFICIENCY AND IMPACTS OF GLOBAL WARMING, ACIDIFICATION, EUTROPHICATION OF RICE PRODUCTION IN LUNG NGOC HOANG NATURE RESERVE, HAU GIANG PROVINCE Lam Kim Nhung1, Truong Hoang Dan2 1 Nam Can Tho University 2 Can Tho University Information: ABSTRACT Received: 03/12/2017 This study uses the data collected from a household survey on 100 farmers Accepted: 06/12/2018 in Lung Ngoc Hoang Nature reserve. Economic efficiency in the present Published: 11/2019 study was estimated from stochastic profit frontier function. Farm Keywords: household makes an average profit of about 18,33 and 8,02 million dongs in Economic efficiency, Winter-Spring and Summer-Autumn crop, respectively. The average Environmental impacts, Life economic efficiency level was 58,51% and 47,38% in Winter-Spring and Cycle Assessment, Lung Ngoc Summer-Autumn crop, respectively. The efficiency level largely varied Hoang, Stochastic profit frontier function. across farms due to the big gap in farming techniques and the ability of choosing optimal inputs across farms. The life cycle assessment method (LCA) was used to assess the environmental impact. The results showed that the impact of global warming in the production of one kilogram of rice was largely due to CH4 emissions from rice soil (94,19%). The use of fertilizer caused the most acidified (94,94%) and eutrophicated (98,03%). 1. INTRODUCTION approach rather than the decentralized approach Wetlands play a vital role as trapping with greater involvement of the local pollutants, toxic substances or general wastes community in the management process. Lack of from human activities, providing favorable cooperation from the local people in the breeding grounds
