干旱区研究

Arid Zone Research ›› 2015, Vol. 32 ›› Issue (2): 395-401.doi: 10.13866/j.azr.2015.02.27

• Special Subject of Afforestation Carbon Sequestration Projects in Arid Area • Previous Articles     Next Articles

Biomass Estimation of a Large-Scale Poplar Plantations in Desert Environment

WANG An-long1, MEIKERE Abulitifu1, SHI Qing-san2, ZHAO Fu-sheng3, ZHANG Xin-ping4, ZHANG Yu-tao4, PENG Jia-bin1   

  1. 1. Key Laboratory of Oasis Ecology (Ministry of Education), Institute of Arid Ecology and Environment, Xinjiang University, Urumqi 830046, Xinjiang, China;
    2. College of Geology and Exploration Engineering, Xinjiang University, Urumqi 830047, Xinjiang, China;
    3. PetroChina Xinjiang Oilfield Company, Karamay 834000, Xinjiang, China;
    4. Institute of Forestry and Ecology, Xinjiang Academy of Forestry Sciences, Urumqi 830000, Xinjiang, China
  • Received:2014-10-22 Revised:2015-01-16 Online:2015-03-15 Published:2015-04-16

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Abstract: Using dimensional analysis and all harvesting method, this study measured and analyzed the biomasses of the arbor layer, the understory vegetation layer and the litter layer in the poplar plantations in Karamay. The results showed that the tree organ biomasses of the arbor layer decreased as an order of trunk (60.79%)>root (14.27%)>branch (9.84%)>bark (8.96%)>leave (6.14%). The biomass of the arbor vegetation with 6-12 cm diameter breast height (DBH) accounted for 61.78% of the arbor vegetation biomass. It was a better choice to adopt 8 m×0.75 m and 4.5 m×2 m single groove single plant models in this area. Populus alba var. pyramidalis was more suitable than than Populus russkii under the same tree-planting patterns in the poplar plantations. The mean biomasses of the arbor layer, the understory vegetation layer and the litter layer were 45.285 t·hm-2, 1.753 t·hm-2 and 4.171 t·hm-2, respectively. The research provided theoretical and practical guidance for the implementation of the large-scale poplar plantations in desert environment.

Key words: poplar plantations, biomass, DBH classes, tree-planting pattern