Arid Zone Research ›› 2019, Vol. 36 ›› Issue (5): 1136-1145.doi: 10.13866/j.azr.2019.05.10

• Plant and Plant Resources • Previous Articles     Next Articles

Changes of Carbon Storage and Carbon Density of Forests in the Kanas National Nature Reserve,Xinjiang

LI Yuan-yuan1,2, WANG Lei3, LIU Qi-jing1, ZHOU Hua4   

  1. 1. College of Forestry,Beijing Forestry University,Beijing 100083,China;
    2. Department of Forestry,College of Agriculture,Shihezi University,Shihezi 832000,Xinjiang,China;
    3. Institute of Modern Forestry,Xinjiang Academy of Forestry,Urumqi 830063,Xinjiang,China;
    4. Guizhou Academy of Forestry,Guiyang 550000,Guizhou,China
  • Received:2018-12-17 Revised:2019-04-08 Published:2025-10-14

Abstract: In this paper,the equations were established for calculating the conversion between aboveground biomass and stem volume of main forest types by using the forest resources inventory data in 2009 and 2014 and the surveyed data of sample plots.On which the aboveground carbon storage and carbon density of the forests in the Kanas Nature Reserve were analyzed.The results showed that,in the 5 years from 2009 to 2014,the aboveground carbon storage in the Kanas Nature Reserve was about 2.14×106 Mg,and the average carbon density was decreased from 55.34 Mg·hm-2 to 54.61 Mg·hm-2,while the forest area was enlarged by 496.77 hm2.Among the carbon density changes of different forest types,the carbon densities of Larix sibirica,Pinus sibirica and Populus tremula forests were decreased,while those of Picea oborata,Abies sibirica and Betula pendula forests were increased.From 2009 to 2014,the carbon stocks of the mature forests was the highest and accounted for 63% of the total carbon storage in the arborous layer,and then that of post-mature,premature,middle-aged and young forests.The carbon density of the middle-aged forests was the highest (66.69-68.68 Mg·hm-2),that of the young forests was low (40.99-44.55 Mg·hm-2),and that of other tree-aged groups ranked as mature and post-mature forests > premature forest.In which the carbon density of middle-aged and premature forests of L.sibirica,A.sibirica,P.oborata and B.pendula was increased,but that of all other post-mature forests was decreased except for P.sibirica and A.sibirica.The compared results revealed that the carbon density of the arborous layer in the study area was higher than the national average level,and the carbon sequestration potential of the arid and semiarid areas in China is high.

Key words: forest, carbon storage, carbon density, carbon sequestration potential, Kanas National Nature Reserve, Xinjiang