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基于力矩平衡點(diǎn)法的北京市生態(tài)系統(tǒng)服務(wù)價(jià)值時(shí)空分布
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國(guó)家自然科學(xué)基金資助項(xiàng)目(41301093)


Temporal and Spatial Distribution of Ecosystem Service Value in Beijing Based on Torque Balance Point Method
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    摘要:

    以北京市為例,在計(jì)算1993年、2001年和2007年三期土地利用生態(tài)系統(tǒng)服務(wù)價(jià)值的基礎(chǔ)上,基于力矩平衡點(diǎn)法分析了生態(tài)服務(wù)功能價(jià)值的重心變化情況,研究了北京市生態(tài)系統(tǒng)服務(wù)價(jià)值分布的時(shí)空變化及變化原因。結(jié)果表明:北京市生態(tài)系統(tǒng)服務(wù)總價(jià)值先增加后減少,從1993年的297.69億元增加到2001年的299.05億元,在2007年又降低到292.12億元;不同土地利用類型的生態(tài)系統(tǒng)服務(wù)價(jià)值的重心轉(zhuǎn)移情況表明,耕地、草地、濕地的價(jià)值重心從1993年到2007年,一直由南向北移動(dòng),推動(dòng)了總價(jià)值的重心變化,公園綠地、林地的重心變化始終為由北向南;不同功能生態(tài)系統(tǒng)服務(wù)價(jià)值的重心轉(zhuǎn)移情況表明,廢物處理、氣候調(diào)節(jié)、氣體調(diào)節(jié)、食物生產(chǎn)、土壤形成與保護(hù)、娛樂(lè)文化的價(jià)值重心由南向北移動(dòng),原材料的價(jià)值重心呈由北向南移動(dòng),生物多樣性的價(jià)值重心呈由西向東的移動(dòng)趨勢(shì),而水源涵養(yǎng)的價(jià)值重心在1993年到2001年由北向南移動(dòng),2001年到2007年則是由南向北移動(dòng)。研究結(jié)果為北京市的政府決策和生態(tài)環(huán)境保護(hù)政策制定提供了依據(jù)。

    Abstract:

    This study mainly assesses land use ecosystem service values in Beijing City during the year of 1993, 2001 and 2007. It calculated the gravity center changes of ecosystem service values based on the torque balance point method, and also analyzed the spatial and temporal variation of ecosystem service value distribution in Beijing City. The results indicate that: the ecosystem service value in Beijing City increases from 29.769 billion Yuan in 1993 to 29.905 billion Yuan in 2001, and then the value decreases to 29.212 billion Yuan in 2007. The transmission of gravity center in ecosystem service values is due to the changes of land use. The central values of cultivated land, grassland, wetland have moved from south to north during 1993—2007, which enhanced the change of the total value of gravity center. For instance, the gravities of park green land and forest were always changed from north to south. The changes of gravity for different functional values of ecosystem services illustrate that the gravity center values from waste material, climate regulation, gas regulation, food production, soul formation and conservation, and entertainment culture, move from south to north, and the gravity of raw materials is opposite. For biological diversity protection, the gravity center shifts from west to east. For water conservation, the center goes from north to south and then to north again during the threeyear period. The paper provides accurate information for municipal government decisionmaking, and formalises ecological and environmental protection related policies in Beijing City.

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李 虹,唐秀美,趙春江,潘瑜春,郝星耀,郜允兵.基于力矩平衡點(diǎn)法的北京市生態(tài)系統(tǒng)服務(wù)價(jià)值時(shí)空分布[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2015,46(11):151-156. Li Hong, Tang Xiumei, Zhao Chunjiang, Pan Yuchun, Hao Xingyao, Gao Yunbing. Temporal and Spatial Distribution of Ecosystem Service Value in Beijing Based on Torque Balance Point Method[J]. Transactions of the Chinese Society for Agricultural Machinery,2015,46(11):151-156.

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  • 收稿日期:2015-04-20
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  • 在線發(fā)布日期: 2015-11-10
  • 出版日期: 2015-11-10