DOI: 10.1016/j.foreco.2017.06.057
Scopus记录号: 2-s2.0-85022073635
论文题名: Belowground carbon sequestration in a mature planted mangroves (Northern Viet Nam)
作者: Ha T.H. ; Marchand C. ; Aimé J. ; Dang H.N. ; Phan N.H. ; Nguyen X.T. ; Nguyen T.K.C.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
语种: 英语
英文关键词: Carbon burial rates
; Carbon stocks
; Planted mangroves
; Soil
; Viet Nam
Scopus关键词: Decay (organic)
; Ecosystems
; Forestry
; Organic carbon
; Photosynthesis
; Phytoplankton
; Soils
; Carbon sequestration
; Carbon stocks
; Linear relationships
; Net primary productivity
; Planted mangroves
; Primary productivity
; Sedimentation rates
; Viet Nam
; Soil pollution
英文摘要: Mangroves play a key role in carbon sequestration along tropical and subtropical coastlines, mainly as a result of their high primary productivity and the anoxic character of their soils, in which organic matter decay processes are slow. Unfortunately, these forests are disappearing worldwide, notably due to aquaculture and the need for space on the shoreline. The mangrove area in Viet Nam decreased substantially until late 90's, which was a concern for the Vietnamese government. Then, replantation programs were developed in order to protect the shoreline against the erosion; like in northern Viet Nam, where monospecific stands were planted from the mid 90's. Within this context, our objectives were to determine carbon stocks and carbon burial rates in the soil of a 18years old Kandelia obovata (Sheue, Lui & Yong) mangrove forest. Three plots were set up in the planted mangroves and three in adjacent bare land (without any mangrove) at the mouth of Red River. Three geo-slicers up to 100cm depth were taken in each plot; and in each core, ten soil samples were collected with a 10cm depth interval. Later on, dead and live roots were sorted. Carbon contents in soils and in roots were determined using the Walkley-Black method and loss on ignition (LOI) method, respectively. Then, the total belowground carbon sequestration was estimated. There was a depth related distribution of organic carbon in soil with the highest concentrations measured between 20 and 60cm depth. Accumulated carbon up to depth of 100cm in soil and roots of the planted K. obovata were 146.78±3.87Mg OC ha-1 and 12.67±0.14Mg OC ha-1, respectively. The value was 87.59±1.08Mg OC ha-1 for the adjacent bare land. Consequently, the mean carbon burial rate for this system was approximately 6.94Mg OC ha-1 yr-1, which is higher than most of the mangroves and may be related to a low export of the net primary productivity or most likely to a high sedimentation rate. These results were compared with previously published results on carbon stocks in younger planted forests of the same species in the same region, a positive and linear relationship was determined between the age of the planted stand and the belowground carbon stocks. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64615
Appears in Collections: 影响、适应和脆弱性
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作者单位: Thuyloi University, 175 Tay Son Str., Dong Da Dist., Ha Noi, Viet Nam; IMPMC, Institut de Recherche pour le Développement (IRD), UPMC, CNRS, MNHN, Noumea, New Caledonia, France; Analytical Chemistry Department, University of Sciences of Ho Chi Minh City, 225 Nguyen Van Cu, Ho Chi Minh, Viet Nam; Marine Geo-environment Department, Institute of Marine Environment and Resource, 246 Danang Street, Hai Phong, Viet Nam; Mangrove Ecosystem Research Division (MERD), Centre for Natural Resources and Environmental Studies (CRES), Vietnam National University (VNU), 144 Xuan Thuy, Cau Giay, Ha Noi, Viet Nam; Mangrove Ecosystem Research Centre (MERC), Hanoi National University of Education (HNUE), 136 Xuan Thuy, Cau Giay Dist., Ha Noi, Viet Nam
Recommended Citation:
Ha T.H.,Marchand C.,Aimé J.,et al. Belowground carbon sequestration in a mature planted mangroves (Northern Viet Nam)[J]. Forest Ecology and Management,2017-01-01