Latitudinal trends in vegetation productivity of permafrost wetlands in Great Hing'an Mountain valleys and its response to global change

  • Ju Sun*
  • , Xiuzhen Li
  • , Xianwei Wang
  • , Lv Jiujun
  • , Zongmei Li
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The permafrost wetlands in the Great Hing'an Mountain valleys are degenerating in response to climatic warming and retreat of permafrost. Changes in vegetation productivity are an important aspect in the studies on permafrost wetlands in response to global change. We investigated the vegetation productivity aboveground in the 12 permafrost wetlands in the Great Hing'an Mountain valleys along a latitudinal gradient. The results indicated a significant latitudinal gradient in herbage productivity, which was determined primarily by temperature. Linear regression demonstrated an 80 g· m -2 increase in herbage productivity with an increase of annual temperature by 1°C. If temperatures increased 2-4 °C over the next century, herbage productivity would increase 2-4 times in predominantly continuous permafrost, and 57-114% in island permafrost. Shrub productivity and community productivity had no significant relationships with latitude, but they tended to increase first, and then decrease with the increase of mean precipitation in July.

Original languageEnglish
Title of host publicationICIME 2010 - 2010 2nd IEEE International Conference on Information Management and Engineering
Pages38-42
Number of pages5
DOIs
StatePublished - 2010
Externally publishedYes
Event2010 2nd IEEE International Conference on Information Management and Engineering, ICIME 2010 - Chengdu, China
Duration: 16 Apr 201018 Apr 2010

Publication series

NameICIME 2010 - 2010 2nd IEEE International Conference on Information Management and Engineering
Volume4

Conference

Conference2010 2nd IEEE International Conference on Information Management and Engineering, ICIME 2010
Country/TerritoryChina
CityChengdu
Period16/04/1018/04/10

Keywords

  • Climate
  • Permafrost wetlands
  • Productivity
  • Temperature
  • Warming

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