Impact of land use and land cover change on the vegetation carbon storage in Sanjiang Plain
CHANG Shou-zhi, WANG Zong-ming, SONG Kai-shan, LIU Dian-wei, ZHANG Bai, ZHANG Chun-hua, ZHANG Su-mei
1. Northeast Institute of Geography and Agricultural Ecolog,Chinese Academy of Sciences,Changchun 130012,China; 2. Graduate School,Chinese Academy of Sciences,Beijing 100049,China
Terrestrial ecosystems are important carbon pools. Land use and cover changes affect the terrestrial carbon storage significantly. In this paper, six stages of spatial database from 1954 to 2005 were established with digitization of topographical maps and interpretation of remote sensing imageries. Using the method provided by the 2006 IPCC Guidelines for National Greenhouse Gas Inventories, impacts of land-use change on carbon storage of vegetation were assessed. The results indicate that land use and cover changes in the study area were dramatic during 1954-2005. The area of farmland increased, while the area of marsh, forest and grassland decreased sharply. The land use/cover changes mainly occurred among farmlands, marshes, forest lands and grasslands. Marsh, forest and grassland were mainly converted to farmland. The land types converted to forest included farmland and grassland, and the main land types converted to marsh were farmland and forest. From 1954 to 2005, a total of 1.07×103km2 forest, 5.73×103km2 grassland and 2.59×104km2 marsh have transferred to farmland. Land use and cover changes led to steady decline of carbon storage in vegetation and the total loss of vegetation carbon storage from 1954 to 2005 is 57.48Tg The transformation of forest, marsh and grassland into farmland or the transformation of forest into grassland and marsh led to reduction of 97.06Tg carbon storage in vegetation. The transform of farmland to forest, marsh and grassland and the transform of grassland and marsh to forest led to the increase of 39.58Tg carbon storage in vegetation.
常守志, 王宗明*, 宋开山, 刘殿伟, 张柏, 张春华, 张素梅. 三江平原土地利用/覆被变化对区域植被碳储量的影响[J]. , 2010, 29(3): 207-214.
CHANG Shou-zhi, WANG Zong-ming, SONG Kai-shan, LIU Dian-wei, ZHANG Bai, ZHANG Chun-hua, ZHANG Su-mei. Impact of land use and land cover change on the vegetation carbon storage in Sanjiang Plain. , 2010, 29(3): 207-214.
[2] IPCC.Summary for policymakers[A].In:Solomon S,Qin D,Manning M,Averyt K,Tignor M M B,Miller H L,Chen Z L(ed).Climate change 2007:The physical science basis.Contribution of working group Ⅰ to the fourth assessment report of the intergovemmental panel on climate change[C].Cambridge:Cambridge University Press,United Kingdom and New York,NY,USA.2007.
[3] Schimel D S,House J I,Hibbard K A,Bousquet P,Ciais P,Peylin P,Braswell B H,Apps M J,Baker D,Bondeau A,Canadell J,Churkina G,Cramer W,Denning A S,Field CB,Friedlingstein P,Goodale C,Heimann M,Houghton PA,Melillo J M,Moore B 3rd,Murdiyarso D,Noble I,Pacala S W,Prentice I C,Raupach M R,Rayner P J,Scholes R J,Steffen W L,Wirth C.Recent patterns and mechanisms of carbon exchange by terrestrial ecosystems[J].Nature,2001,414:169-172.
[4] IPCC.Land-use change and forestry,A special report of the IPCC[R].Cambridge:Cambridge University Press,2000.23-51.
[11] Eggleston S,Buendia L,Miwa K,Ngara T,Tanabe K.2006IPCC guidelines for national greenhouse gas inventories[M].Prepared by the national greenhouse gas inventories programme.IGES,Japan.
[16] Song C C,Xu X F,Tian H Q,Wang Y Y.Ecosystem-atmosphere exchange of CH4 and N2O and ecosystem respiration in wetlands in the Sanjiang Plain,Northeastem China[J].Global Change Biology,2009,15:692-705.
