中国地理科学 ›› 2016, Vol. 26 ›› Issue (3): 304-313.doi: 10.1007/s11769-016-0810-5

• 论文 • 上一篇    下一篇

Co-benefits of Local Air Pollutants and Greenhouse Gas Reduction Achieved by Hydropower Development in Xizang (Tibet) Autonomous Region, China

ZHAO Wei1, KONG Fan'e2, SHEN Weishou1   

  1. 1. Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China;
    2. LAY-OUT Planning Consultants Ltd., Shenzhen 518049, China
  • 收稿日期:2015-11-26 修回日期:2016-02-01 出版日期:2016-06-27 发布日期:2016-05-09
  • 通讯作者: SHEN Weishou E-mail:shenweishou@163.com
  • 基金资助:

    Under the auspices of State Environmental Protection Commonweal Special Program of China (No. 201209032), National Natural Science Foundation of China (No. 71503118), Basic Research Foundation of National Commonweal Research Institute (No. 2013012)

Co-benefits of Local Air Pollutants and Greenhouse Gas Reduction Achieved by Hydropower Development in Xizang (Tibet) Autonomous Region, China

ZHAO Wei1, KONG Fan'e2, SHEN Weishou1   

  1. 1. Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China;
    2. LAY-OUT Planning Consultants Ltd., Shenzhen 518049, China
  • Received:2015-11-26 Revised:2016-02-01 Online:2016-06-27 Published:2016-05-09
  • Contact: SHEN Weishou E-mail:shenweishou@163.com
  • Supported by:

    Under the auspices of State Environmental Protection Commonweal Special Program of China (No. 201209032), National Natural Science Foundation of China (No. 71503118), Basic Research Foundation of National Commonweal Research Institute (No. 2013012)

摘要:

Hydropower development in Xizang (Tibet) Autonomous Region plays a vital role in co-control of local air pollutants and greenhouse gas (GHG) in China. According to emission factors of local air pollutants and GHG of coal-fired power industry in different hydropower service regions, we estimate the effect and synergy of local air pollutants and GHG reduction achieved by hydropower development in Tibet, examine the main factors constraining the effect and synergy, using correlation analysis and multiple regression analysis. The results show that: 1) During the period from 2006 to 2012, the effect of local air pollutants and GHG reduction achieved by hydropower development in Tibet decreased as a whole, while the synergy increased first and decreased afterwards. 2) The effect and synergy of local air pollutants and GHG reduction achieved by hydropower development in Tibet vary significantly across different hydropower service regions. The effect based on emission levels of Central China power grid (CCPG) and Northwest China power grid (NCPG) was more significant than that based on emission level of national power grid (NPG) from 2006 to 2012, and the synergy based on emission levels of CCPG and NCPG was also more significant than that based on emission level of NPG from 2010 to 2012. 3) The main factors constraining the effect and synergy based on emission levels of NCPG and CCPG included SO2 removal rate and NOx removal rate, the effect and synergy based on emission level of NPG was mainly influenced by net coal consumption rate. 4) Transferring hydropower from Tibet to NCPG and CCPG, and substituting local coal-fired power with hydropower can greatly help to co-control local air pollutants and GHG, transform the emission reduction pattern of the power industry and optimize energy structure.

关键词: hydropower development, co-control, synergy, Tibet, China

Abstract:

Hydropower development in Xizang (Tibet) Autonomous Region plays a vital role in co-control of local air pollutants and greenhouse gas (GHG) in China. According to emission factors of local air pollutants and GHG of coal-fired power industry in different hydropower service regions, we estimate the effect and synergy of local air pollutants and GHG reduction achieved by hydropower development in Tibet, examine the main factors constraining the effect and synergy, using correlation analysis and multiple regression analysis. The results show that: 1) During the period from 2006 to 2012, the effect of local air pollutants and GHG reduction achieved by hydropower development in Tibet decreased as a whole, while the synergy increased first and decreased afterwards. 2) The effect and synergy of local air pollutants and GHG reduction achieved by hydropower development in Tibet vary significantly across different hydropower service regions. The effect based on emission levels of Central China power grid (CCPG) and Northwest China power grid (NCPG) was more significant than that based on emission level of national power grid (NPG) from 2006 to 2012, and the synergy based on emission levels of CCPG and NCPG was also more significant than that based on emission level of NPG from 2010 to 2012. 3) The main factors constraining the effect and synergy based on emission levels of NCPG and CCPG included SO2 removal rate and NOx removal rate, the effect and synergy based on emission level of NPG was mainly influenced by net coal consumption rate. 4) Transferring hydropower from Tibet to NCPG and CCPG, and substituting local coal-fired power with hydropower can greatly help to co-control local air pollutants and GHG, transform the emission reduction pattern of the power industry and optimize energy structure.

Key words: hydropower development, co-control, synergy, Tibet, China