Exotic Spartina alterniflora invasion alters ecosystem-atmosphere exchange of CH4 and N2O and carbon sequestration in a coastal salt marsh in China
Exotic Spartina alterniflora invasion alters ecosystem-atmosphere exchange of CH4 and N2O and carbon sequestration in a coastal salt marsh in China
复制标题
外来互花米草入侵改变了中国沿海盐沼的生态系统-大气CH4和N2O交换以及碳封存
DOI：
10.1111/gcb.12797
复制
发表时间：
2015-04-01
影响因子：
11.6
通讯作者：
Lin, Yongxin
中科院分区：
文献类型：
--
作者：
Yuan, Junji;Ding, Weixin;Lin, Yongxin
滨海盐沼对全球气候变化非常敏感，在减缓全球气候变暖方面可能发挥重要作用。为评估互花米草入侵对中国沿海地区全球变暖潜势（GWP）的影响，在江苏省沿海湿地样带（包括开放水域、裸潮滩和入侵的互花米草）上测量了CH 4和N2 O通量以及土壤有机碳固存率沿着.互花米草、原生盐地碱蓬和芦苇沼泽。开放水域、裸露潮滩、芦苇、S. australis、芦苇和芦苇的CH 4年排放量分别为2.81、4.16、4.88、10.79和16.98kgCH（4）ha（-1）。salsa和S. alterniflora沼泽，表明S.互花米草入侵增加CH_4排放57- 505%。相反，负N2 O通量则呈显著负相关（P
Coastal salt marshes are sensitive to global climate change and may play an important role in mitigating global warming. To evaluate the impacts of Spartina alterniflora invasion on global warming potential (GWP) in Chinese coastal areas, we measured CH4 and N2O fluxes and soil organic carbon sequestration rates along a transect of coastal wetlands in Jiangsu province, China, including open water; bare tidal flat; and invasive S. alterniflora, native Suaeda salsa, and Phragmites australis marshes. Annual CH4 emissions were estimated as 2.81, 4.16, 4.88, 10.79, and 16.98kg CH(4)ha(-1) for open water, bare tidal flat, and P. australis, S. salsa, and S. alterniflora marshes, respectively, indicating that S. alterniflora invasion increased CH4 emissions by 57-505%. In contrast, negative N2O fluxes were found to be significantly and negatively correlated (P