INFRARED GAS ANALYSIS METHOD OF THE CLOSED CHAMBER AND APPLICATIONS IN DETERMINATION OF CARBON EMISSIONS THROUGH THE SOIL RESPIRATION IN THE CAN GIO MANGROVE FOREST
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https://doi.org/10.54939/1859-1043.j.mst.76.2021.104-111Keywords:
Carbon dioxide (CO2); Carbon emission; Soil respiration; Infrared gas analyzer; Can Gio mangrove ecosystem.Abstract
Soil respiration is a research direction that makes important contributions for assessing the carbon exchange and storage capacity of forest ecosystems. The carbon emissions of the ecosystem through the respiration of woodland ground can be determined by various methods and devices, but the most common is the closed static chamber manner. In this research, soil respiration of the native ecosystem of Can Gio mangrove forest (Ho Chi Minh City) was measured by the DC-Dynamic chamber technique at 12 natural forest habitats with typical plots size 20 m x 20 m. The CO2 flux emitted from the soil into the atmosphere obtained through a closed chamber is transferred to a portable IRGA infrared gas analyzer and returned to the chamber for evaluation of measurement parameters. The results show Can Gio mangrove forest emits carbon through soil respiration with an average flux of 4.39 µmolCO2.m-².s-¹. The amount of CO2 emitted via the soil varies in space and time and is correlated with chamber temperature and humidity. Chamber temperature and humidity, tidal regime have impacts on CO2 emission through soil respiration at each sample plot location.
References
[1]. Singh, J. S. and Gupta, S. R., “Plant decomposition and soil respiration in terrestrial ecosystem”, Bot. Rev, Vol. 43, No. 4 (1977), pp. 449-528.
[2]. Witkamp M., “Rates of carbon dioxide evolution from the forest floor”, Ecology, Vol. 47, No. 3 (1966), pp. 492-494.
[3]. Freuerj. I. & Boutenw, “A comparison of field methods for measuring soil carbon dioxide evolution: Experiments and simulation”, Plant and Soil, Vol. 135, No. 1 (1991), pp. 133-142.
[4]. Mariko S., Bekkuy. & Kolzumih., “Efflux of carbon dioxide from snow covered forest floors”, Ecological Research, Vol. 9, No. 3 (1994), pp. 343-350.
[5]. Nakadait., Koizumih., Usamiy., Satohm. & Oikawat., “Examination of the methods for measuring soil respiration in cultivated land: Effect of carbon dioxide concentration on soil respiration”, Ecological Research, Vol. 8, No. 1 (1993), pp. 65-71.
[6]. Rochette, P., Gregorich, E.G. and Desjardins, R.L., “Comparison of static and dynamic closed chambers for measurement of soil respiration under field conditions”, Can. J. Soil Sci., Vol. 72, No. 4 (1992), pp. 605-609.
[7]. Bộ Nông nghiệp và Phát triển nông thôn, “Thông tư 33/2018/TT-BNNPTNT ngày 16/11/2018 của Bộ NN&PTNT về quy định về điều tra, kiểm kê và theo dõi diễn biến rừng”, (2018).
[8]. Nguyễn Văn Thịnh, Đỗ Phong Lưu, Ngô Trung Dũng, Avilov Vitaly, Zhirenko Nicolay Georgievich, Huỳnh Đức Hoàn, Đặng Văn Đông, Trần Tuấn Hoàng, Hồ Công Toàn, Nguyễn Thái Sơn, “Nghiên cứu ảnh hưởng của biến đổi khí hậu đến khả năng dự trữ Carbon của các hệ sinh thái tự nhiên rừng ngập mặn Cần Giờ và đề xuất các giải pháp thích ứng”, Sở Khoa học và Công nghệ Thành phố Hồ Chí Minh (2020), 171 trang.
[9]. Kanemasu E, Powers W, Sij J, “Field chamber measurements of CO2 flux from soil surface”, Soil Science, Vol. 118, No. 4 (1974), pp. 233-237.
[10]. Healy R W, Striegl R G, Russell T F, Hutchinson G L, et al, “Numerical Evaluation of Static‐Chamber Measurements of Soil-Atmosphere Gas Exchange: Identification of Physical Processes”, Soil Science Society of America Journal, Vol. 60, No. 3 (1996), pp. 740-747.
[11]. Hanpattanakit P, Panuthai S, Chidthaisong A, “Temperature and moisture controls of soil respiration in a dry Dipterocarp forest, Ratchaburi province”, Agriculture and Natural Resources, Vol. 43, No. 4 (2009), pp. 650-661.
[12]. Twilley R, Chen R, Hargis T, “Carbon sinks in mangroves and their implications to carbon budget of tropical coastal ecosystems”, Water, Air, and Soil Pollution, Vol. 64, No. 1 (1992), pp. 265-288.
[13]. Ryan M G, Law B E, “Interpreting, measuring, and modeling soil respiration”, Biogeochemistry, Vol. 73, No. 1 (2005), pp. 3-27.
[14]. Arnaud M, Baird A J, Morris P J, Dang H, “Response of mangrove soil respiration to climate change”, AGU Fall Meeting Abstracts 2018 (2018), OS43F-2154.
[15]. Van Vinh T, “Carbon stocks and fluxes in tropical mangrove (Southern Vietnam)”, Thesis Doctor of Philosophy presented at the University of New Caledonia, Specialty: Earth and Environmental Sciences - Université de la Nouvelle-Calédonie (2018).
[16]. Fung, I. Y., Tucker, C. J., & Prentice, K. C, “Application of advanced very high resolution radiometer vegetation index to study atmosphere‐biosphere exchange of CO2”, Journal of Geophysical Research: Atmospheres, Vol. 92, No. D3 (1987), pp. 2999-301.
[17]. Raich J W, Schlesinger W H, “The global carbon dioxide flux in soil respiration and its relationship to vegetation and climate”, Tellus B, Vol. 44, No. 2 (1992), pp. 81-99.
