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Greenhouse gases emission in U Minh Thuong national park, Kien Giang province

is study was conducted to examine the CH4 emission in the core zone and the effects of water and soil physical and chemical characteristics and water depth on CH4 emission in U Minh Thuong National Park, Kien Giang Province. | Vietnam Journal of Science and Technology 55 (4C) (2017) 142-147 GREENHOUSE GASES EMISSION IN U MINH THUONG NATIONAL PARK, KIEN GIANG PROVINCE Nguyen Thi Kim Thoa, Huynh Cong Khanh, La Thinh Phu, Mai Thi Diem Huong, Nguyen Thi Huynh Trang, Do Thi My Phuong, Nguyen Xuan Loc* College of Environment and Natural Resources, CanTho University Campus II, 3/2 street, Xuan Khanh ward, Ninh Kieu district, Can Tho city * Email: nxloc@ctu.edu.vn Received: 1 August 2017; Accepted for publication: 16 October 2017 ABSTRACT This study was conducted to examine the CH4 emission in the core zone and the effects of water and soil physical and chemical characteristics and water depth on CH4 emission in U Minh Thuong National Park, Kien Giang Province. The study was carried out from September, 2016 to November, 2016. The CH4 was collected by closed chambers. The results showed that the soil had a low pH (3.89 - 5.12), a high total phosphorus (0.1 % P2O5) and lower potential redox (from -186 to -145 mV). The organic matter (54.6 %) and total nitrogen (1.15 %) were high in thick peat layers. The organic matter (2.15 - 3.93 %) and total nitrogen (0.1 %) were low in thin or no peat layer. The surface water was polluted by organic matter and was not suitable for domestic use (QCVN 08-MT: 2015/BTNMT column A2). CH4 emission in clay based and peat land based Melaleuca forest areas were 106 mg.m-2.h-1 and 135 mg.m-2.h-1, respectively. The CH4 emission was not correlated with either water and soil physical and chemical characteristics or water depth, but might be correlated microbial factors. We need to study water, soil characteristics, CH4 emission of months in years. Keywords: U Minh Thuong, CH4 emission, peat soil, water environment, soil environment. 1. INTRODUCTION CH4 is one of the factors which cause the greenhouse effect and increased atmospheric concentrations of CO2, CH4 and N2O causing current global warming by substantially increasing the greenhouse gas (GHG) [1]. The CH4 is .