自然资源学报

自然资源学报 ›› 2015, Vol. 30 ›› Issue (3): 397-408.doi: 10.11849/zrzyxb.2015.03.004

• 资源生态 • 上一篇    下一篇

1975—2005 年中亚土地利用/覆被变化对森林生态系统碳储量的影响

陈耀亮1,2, 罗格平1, 叶辉1,2, 王渊刚1,2, 黄小涛1,2, 张琪1,2, 蔡鹏1,2   

  1. 1. 中国科学院新疆生态与地理研究所, 荒漠与绿洲生态国家重点实验室, 乌鲁木齐830011;
    2. 中国科学院大学, 北京100049
  • 收稿日期:2014-02-10 修回日期:2014-05-12 发布日期:2015-03-23
  • 通讯作者: 罗格平(1968-),男,研究员,博士,主要从事土地变化及其生态效应、地理信息系统与遥感应用研究.E-mail:luogp@ms.xjb.ac.cn E-mail:luogp@ms.xjb.ac.cn
  • 作者简介:陈耀亮(1990-),男,江西萍乡人,硕士研究生,主要从事遥感与GIS技术在土地利用变化领域的研究.E-mail:chengis0115@gmail.com
  • 基金资助:

    国家国际科技合作专项(2010DFA92720-09);国家自然基金委与国际(地区) 合作交流项目(41361140361).

Sources and Sinks of Carbon Caused by Forest Land Use Change from 1975 to 2005 in Central Asia

CHEN Yao-liang1,2, LUO Ge-ping1, YE Hui1,2, WANG Yuan-gang1,2, HUANG Xiao-tao1,2, ZHANG Qi1,2, CAI Peng1,2   

  1. 1. State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2014-02-10 Revised:2014-05-12 Published:2015-03-23

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摘要：

土地利用/覆被变化(LUCC)对碳循环的影响研究已覆盖全球绝大多数地区,但中亚LUCC对森林生态系统碳库的影响仍属未知.论文以人工林面积、森林产品收获产量及林地转移面积为基础数据,应用Bookkeeping 模型,分析了1975—2005 年期间三种LUCC方式对中亚森林碳库的影响.近30 a LUCC对其碳库的影响总体表现为碳汇,固碳量为3.07 Tg.植树造林表现出强烈的碳汇功能,总固碳量为12.97 Tg.森林采伐是最主要的碳释放来源,共释放碳5.80 Tg.林地转移呈现较强的碳释放特征,共排放为4.10 Tg.结果表明1975—2005 年该区域LUCC对森林碳库具有明显的增汇效应.研究结果将有利于减少LUCC对全球碳收支影响的不确定性.

关键词: 森林生态系统, 土地利用/覆被变化, 碳动态, Bookkeeping模型, 中亚

Abstract:

The contribution of forest land use change to the carbon source has been researched in most tropical regions, but it is poorly documented for arid forest ecosystem. Using Bookkeeping model, we estimated the sources and sinks of carbon caused by forest land use change between 1975 and 2005 in Central Asia. The results indicated that: The forest land use change performed as carbon sink overall, with total carbon sequestration of 3.07 Tg. The accelerated afforesting led to a strong carbon sequestration (12.97 Tg), while the deforestation was a main carbon source, releasing 5.80 Tg. The woodland transfer also performed as carbon source, releasing 4.10 Tg. We recommend that some efficient measures should be taken on increasing the quality and quantity of forest resources in the future to enhance the forestry carbon sequestration in Central Asia. Therefore, this can offset the carbon loss caused by industrial activities, so as to provide sufficient space for the sustained and healthy development of the economy in Central Asia. This study is conducive to profoundly understand the influence of human activities on global carbon balance.

Key words: forest ecosystem, land use/cover change, carbon change, Bookkeeping Model, Central Asia

中图分类号: 

  • S718.5