Nitrous oxide and methane emissions from the restored mangrove ecosystem of the Ciénaga Grande de Santa Marta, Colombia

Factors influencing spatio-temporal variation of methane and nitrous oxide emission from a tropical mangrove of eastern coast of India

“…This leads to higher load nitrogenous compound at the site KH which may facilitate higher N 2 O emission from the sediment. Similar site specific higher N 2 O emissions have also been reported by other groups (Corredor et al, 1999;Konnerup et al, 2014). The N 2 O emission from the sediment of the site KH was positively correlated with sediment pH and temperature.…”

“…The range of CH 4 emission (0.09e2.24 mg m À2 h À1 ) from the mangrove sediment during the sampling period was well within the reported range in previous studies in the mangrove ecosystem (Lyimo et al, 2002;Kreuzwieser et al, 2003;Purvaja et al, 2004;Lekphet et al, 2005; Barnes et al, 2006;Allen et al, 2007;Biswas et al, 2007;Dalal and Allen, 2008;Chen et al, 2012;Linto et al, 2014;Konnerup et al, 2014). Among the different seasons significantly higher CH 4 emission was recorded during winter season from the mangrove sediment.…”

“…Such diversity in composition of the organic matter also ensures continuous availability of substrates for microbial communities involved in mineralization (Kristensen et al, 2008). The magnitude of N 2 O emission varied between 9.0 and 187.58 mg m À2 h À1 , which is also well within the range reported in earlier studies (Corredor et al, 1999;Kreuzwieser et al, 2003;Barnes et al, 2006;Allen et al, 2007Allen et al, , 2011Konnerup et al, 2014). Most of them have concluded severe human disturbance to mangrove are responsible for higher N 2 O emission.…”

Including GHG emissions from mangrove forests LULUC in LCA: a case study on shrimp farming in the Mekong Delta, Vietnam

“…On the other hand, these farms only make up a small share of overall shrimp production in Vietnam, and only 25 farms in two provinces were evaluated. Moreover, satellite imagery only dated back to the year 2000, and the images only provide rough estimates of vegetation types, while most As mentioned before, research on methane emissions resulting from land use of mangrove area is rather limited and most research on methane fluxes focus on integrated rice-fish ponds (Frei and Becker 2005;Datta et al 2009) or other human disturbances of mangroves (i.e., Konnerup et al 2014). The pond conditions in the IAA systems, which were used as a proxy for methane emissions in this study, came closest to those found in the mixed mangrove concurrent systems (Astudillo et al 2015).…”

滨海湿地ch4排放的研究进展

“…。Delaune 等对海湾盐沼湿 地甲烷排放研究也发现， 盐度与 CH4排放之间呈负 相关 [57] 。 随后， 全球变暖导致海平面上升， 造成滨海地 区海水入侵情况加剧。盐水入侵对滨海湿地 CH4动 态影响的研究日益增多。在对美国佛罗里达滨海 湿地的研究表明， NaCl 的大量输入能够减少表层土 壤 中 CH4 的 排 放 [58] 。 Neubauer S C 等 通 过 对 美 国 South Carolina 河口潮汐淡水沼泽湿地进行原位添 加海水模拟实验表明， 随盐度的增加 CH4排放相应 的减少 [59] 。在对印度东南部滨海湿地的研究发现， 盐分输入会抑制 CH4排放 [60] 。 然而， 也有一些研究呈现出不同结果， 主要表 现为盐分对 CH4的排放无显著影响或在一定程度上 促进了 CH4的产生和排放。例如， 在对美国新泽西 州一个潮汐淡水沼泽湿地的研究发现， 少量盐分的 输入增加了 CH4的排放 [61] 。在哥伦比亚加勒比海岸 的红树林湿地甲烷排放的研究中发现， 盐度对 CH4 排放无显著影响 [62] 。 目前关于盐水入侵和盐度变化对滨海湿地 CH4 [65] 。Knittel 等研究…”