干旱区研究

Arid Zone Research >

2016 , Vol. 33 >Issue 1: 67 - 73

DOI: https://doi.org/10.13866/j.azr.2016.01.07

Soil Environment

Analysis and Prediction of Soil Organic Carbon Storage Based on the Optimal Land Use Structure:A Case Study of Duolun County,Inner Mongolia

  • FANG Fei ,
  • LI Bin-yong ,
  • TANG Hai-ping
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  • 1. State Key Laboratory of Earth Surface Processes and Resource Ecology,Beijing Normal University,Beijing 100875,China;
    2. College of Resources Science and Technology,Beijing Normal University,Beijing 100875,China;
    3. National Marine Environmental Monitoring Center,Dalian 116023,Liaoning,China;
    4. Research Institute of Sea areas management policy and Technology,Dalian 116023,Liaoning,China

Received date: 2014-03-14

  Revised date: 2014-08-04

  Online published: 2016-01-29

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Abstract

The process of soil carbon sequestration is an important link in the global carbon cycle,so the subtle changes of soil carbon reserves will be an important impact on the global carbon cycle. There are numerous factors to affect the soil carbon input and output of land ecological system,but the way of land use change is one of the important factors. Land use/cover changes have a significant impact on the carbon cycle of terrestrial ecosystem. The optimal land use structure of 2020 was explored using the method of multi-objective linear programming with fuzzy mathematics. Meanwhile,the soil organic carbon storage was estimated in this scenario. The results showed that the optimal land use structure was cropland,3.31×104 hm2; forestland,1.37×105 hm2; grassland,1.84×105 hm2; water surface area,2 300 hm2; building area,5 600 hm2; unused area,2.89×104 hm2. The soil organic carbon storage was 2.11×109 kg,7.76×109 kg and 1.03×1010 kg in cropland,forestland and grassland,respectively. The soil organic carbon storage of all the three land use type increased 1.85×109 kg than 2009.The method combining with multi-objective linear programming and fuzzy mathematics method,can give consideration to both ecological benefit and economic benefit,social benefit and carbon sequestration effect under the premise of maximum approximation each objective function of optimal solution,and then puts forward the effective scheme of land use structure for Duolun County. At the same time,the result shows that under the appropriate land use planning,Duolun County has a great potential for carbon sequestration.

Key words： multi-objective linear programming; land use type; soil organic carbon; fuzzy mathematics; Inner Mongolia

Cite this article

FANG Fei , LI Bin-yong , TANG Hai-ping . Analysis and Prediction of Soil Organic Carbon Storage Based on the Optimal Land Use Structure:A Case Study of Duolun County,Inner Mongolia[J]. Arid Zone Research, 2016 , 33(1) : 67 -73 . DOI: 10.13866/j.azr.2016.01.07

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