Seasonal Dynamics of Methane and Nitrous Oxide Emissions in Sri Lankan Paddy Soils Under Controlled Water Management

Tharindi Lakshani1, H F E Hansen2, Chamindu Deepagoda1, Bo Elberling2, N A A S P Nissanka3, D M J B Senanayake4, Y Jayawardhana5, S K Weragoda6, Shoichiro Hamamoto7, G L S Babu8, Hoysall Narayana Chanakya9, G P Arunkumar8, T G Parameswaran8, Bjoern Ole Sander10, Tim Clough11 and K Smits12, (1)Dept. of Civil Engineering, Faculty of Engineering, University of Peradeniya, Peradeniya, Sri Lanka, (2)Dept. of Geosciences and Natural Resource Management, Center for Permafrost (CENPERM), University of Copenhagen, Ă˜ster Voldgade 10, DK-1350, Copenhagen, Denmark, (3)Dept. of Crop Science, Faculty of Agriculture, University of Peradeniya, Peradeniya, Sri Lanka, (4)Rice Research and Development Institute, Bathalegoda, Sri Lanka, (5)Environmental Science Research Programme, National Institute of Fundamental Studies, Peradeniya, Sri Lanka, (6)Joint Research and Demonstration Center for Water Technology (JRDC), Peradeniya, Sri Lanka, (7)Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan, (8)Dept. of Civil Engineering, Indian Institute of Science, Bangalore, India, (9)Indian Institute of Science, Centre for Sustainable Technologies, Bangalore, India, (10)International Rice Research Institute, Hanoi, Vietnam, (11)Dept. of Soil and Physical Sciences, Lincoln University, Lincoln, New Zealand, (12)Dep. of Civil and Environmental Engineering, Southern Methodist University (SMU), Dallas, TX, 75205, Dallas, United States