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北京市消耗食物生態(tài)足跡距離

發(fā)布時間:2018-04-23 10:59

  本文選題:生態(tài)系統(tǒng)服務(wù) + 生態(tài)足跡距離; 參考:《生態(tài)學(xué)報》2016年04期


【摘要】:以北京市消耗食物生態(tài)足跡的距離為研究核心。結(jié)果表明2008年至2012年,北京的生態(tài)足跡距離、人均生態(tài)足跡和生態(tài)足跡總里程總體呈現(xiàn)逐年增長趨勢:生態(tài)足跡距離增大到676.75 km,增長19.3%;人均生態(tài)足跡距離增加到18.42萬km,增長54%;生態(tài)足跡總里程增加了1倍強(qiáng),達(dá)到56億t km。北京市的食物生態(tài)足跡距離不斷擴(kuò)大,并涵蓋了全國大部分地區(qū),北京城市化的生態(tài)成本上升。所消耗各類食物的生態(tài)足跡距離從大到小分別為水果類、蔬菜或糧油類、肉蛋類和水產(chǎn)類。蔬菜類和水果類的生態(tài)足跡距離存在明顯的季節(jié)波動,且冬春季節(jié)遠(yuǎn)高于夏秋季節(jié)。從轉(zhuǎn)移生態(tài)承載力來源地的視角,直線距離越遠(yuǎn)、占據(jù)市場份額越大的地區(qū),對北京市消耗食物生態(tài)足跡距離的貢獻(xiàn)率越高。
[Abstract]:The study focuses on the distance of food ecological footprint consumed in Beijing. The results show that from 2008 to 2012, Beijing's ecological footprint distance, The per capita ecological footprint and the total mileage of ecological footprint are increasing year by year: the distance of ecological footprint increases to 676.75 km, the increase is 19.3km, the distance of per capita ecological footprint increases to 184200 km, the total mileage of ecological footprint increases by 54%, and the total mileage of ecological footprint increases more than twice, reaching 5.6 billion t / km. The food ecological footprint of Beijing is expanding and covers most of the country, and the ecological cost of urbanization in Beijing is rising. The ecological footprint of food consumption ranged from large to small: fruit, vegetables or grain and oil, meat and eggs and aquatic products. The ecological footprint distance of vegetables and fruits has obvious seasonal fluctuation and the winter and spring seasons are much higher than the summer and autumn seasons. From the point of view of transferring the origin of ecological carrying capacity, the farther the straight line distance is, the greater the market share is, the higher the contribution rate is to the distance of food consumption ecological footprint in Beijing.
【作者單位】: 中國科學(xué)院地理科學(xué)與資源研究所;中國科學(xué)院大學(xué);浙江農(nóng)林大學(xué)信息工程學(xué)院;北京化工大學(xué)經(jīng)濟(jì)管理系;北京石油化工學(xué)院人文社科系;
【基金】:國家科技支撐計(jì)劃項(xiàng)目(2013BAC03B05)
【分類號】:F127


本文編號:1791663

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