caa a22 4500 606218890 CHVBK 20210128101115.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s11104-015-2386-8 doi (NATIONALLICENCE)springer-10.1007/s11104-015-2386-8 Multiple timescale variations and controls of soil respiration in a tropical dry dipterocarp forest, western Thailand [Elektronische Daten] [Phongthep Hanpattanakit, Monique Leclerc, Andrew Mcmillan, Pitayakorn Limtong, Jean-Luc Maeght, Samreong Panuthai, Kazuyuki Inubushi, Amnat Chidthaisong] Aim: This study aims to improve our understanding of temporal variations and controlling factors of soil respiration (Rs) and its components (microbial respiration or Rm and root respiration or Rb) in an Asian tropical seasonal forest at diurnal, seasonal and annual timescales in relation to biotic and abiotic controls. Methods: Rs was studied by the trenching method in a seasonal dry diptercarp forest, western Thailand. An automated soil chamber system was used to produce hourly data of Rs during 2008-2011. Analysis of Rs in relation to both biotic and abiotic factors was carried out to understand its temporal variations at different timescales. Results: Rm was the main contributor to overall magnitude and variability of Rs. Soil temperature alone was the main driver of diurnal variation, while the combination of soil moisture and soil temperature determined the seasonal variations. The amount of Rs was also related to the fine root (<2mm) and microbial biomass at seasonal timescales. Due to the small inter-annual variations in soil temperature and moisture, total soil respiration among the 4years was not significantly different (p < 0.05). The annual totals for Rs during 2008-2011 were 3.20, 3.89, 3.52, 4.14 kgCO2 m−2years−1, respectively. The 4-year average ratio of Rm (trenched) to Rs (untrenched) was 66 ± 4%. Conclusion: Rm plays a crucial role in determining the magnitude (large ratio between Rm and Rs) and temporal variations of Rs. In this forest ecosystem, high seasonal variations in Rs were observed and were mainly attributed to the response of Rm to moisture. Springer International Publishing Switzerland, 2015 Soil respiration nationallicence Heterotrophic and autotrophic respiration nationallicence Root biomass nationallicence Microbial biomass nationallicence Temporal variations nationallicence Dry dipterocarp forest nationallicence Hanpattanakit Phongthep The Joint Graduate School of Energy and Environment (JGSEE) and Center of Excellence on Energy Technology and Environment, King Mongkut's University of Technology Thonburi, Bangkok, Thailand aut Leclerc Monique Laboratory for Environmental Physics, Center of Atmospheric Biogeosciences, University of Georgia, Griffin, GA, USA aut Mcmillan Andrew Landcare Research, Palmerston North, New Zealand aut Limtong Pitayakorn Land Development Department, Phahonyothin Rd., Chatuchak, Bangkok, Thailand aut Maeght Jean-Luc UMR Bioemco, Institut de Recherche pour le Développement (IRD) c/o UMR AMAP, CIRAD TA A51/PS2, Montpellier cedex 5, France aut Panuthai Samreong Department of National Parks, Wildlife and Plant Conservation, Bangkok, Thailand aut Inubushi Kazuyuki Graduate School of Horticulture, National University Corporation, Chiba University, Chiba, Japan aut Chidthaisong Amnat The Joint Graduate School of Energy and Environment (JGSEE) and Center of Excellence on Energy Technology and Environment, King Mongkut's University of Technology Thonburi, Bangkok, Thailand aut Plant and Soil Springer International Publishing 390/1-2(2015-05-01), 167-181 0032-079X 390:1-2<167 2015 390 11104 https://doi.org/10.1007/s11104-015-2386-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-015-2386-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hanpattanakit Phongthep The Joint Graduate School of Energy and Environment (JGSEE) and Center of Excellence on Energy Technology and Environment, King Mongkut's University of Technology Thonburi, Bangkok, Thailand aut NATIONALLICENCE 700 1- Leclerc Monique Laboratory for Environmental Physics, Center of Atmospheric Biogeosciences, University of Georgia, Griffin, GA, USA aut NATIONALLICENCE 700 1- Mcmillan Andrew Landcare Research, Palmerston North, New Zealand aut NATIONALLICENCE 700 1- Limtong Pitayakorn Land Development Department, Phahonyothin Rd., Chatuchak, Bangkok, Thailand aut NATIONALLICENCE 700 1- Maeght Jean-Luc UMR Bioemco, Institut de Recherche pour le Développement (IRD) c/o UMR AMAP, CIRAD TA A51/PS2, Montpellier cedex 5, France aut NATIONALLICENCE 700 1- Panuthai Samreong Department of National Parks, Wildlife and Plant Conservation, Bangkok, Thailand aut NATIONALLICENCE 700 1- Inubushi Kazuyuki Graduate School of Horticulture, National University Corporation, Chiba University, Chiba, Japan aut NATIONALLICENCE 700 1- Chidthaisong Amnat The Joint Graduate School of Energy and Environment (JGSEE) and Center of Excellence on Energy Technology and Environment, King Mongkut's University of Technology Thonburi, Bangkok, Thailand aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 390/1-2(2015-05-01), 167-181 0032-079X 390:1-2<167 2015 390 11104