生态经济
生態經濟
생태경제
Ecological Economy
2013年
4期
88~91
,共null页
大豆供给 生态足迹分析 资源环境效应
大豆供給 生態足跡分析 資源環境效應
대두공급 생태족적분석 자원배경효응
soybean supply; ecological footprint analysis; resource environment effect
近年来,随着大宗农产品贸易的迅速增加,农产品贸易引起的资源与环境效应评价日趋凸显。为定量反映我国大豆供给变化的环境效应,本研究使用改进的生态足迹分析方法,对我国1986-2009年的大豆供给的耕地足迹和能源足迹进行了定量测算,耕地足迹按照生产国单产进计算,能源足迹考虑了生产过程中化肥、机械投入和运输过程中的能源消耗。结果表明:(1)我国大豆供给的耕地足迹呈不断增加的趋势,且进口引起的耕地足迹增速大于国内耕地足迹增速;(2)化肥及机械投入的不同是导致我国及进口来源国大豆能源足迹产生差异的主要原因;(3)对不同生产国的大豆耕地和能源足迹的对比表明,我国生产单位大豆隐含的耕地足迹和能源足迹均高于其他进口来源国,从资源利用角度而言,大豆国际贸易提高了全球农业资源的利用率,保证了我国农业的可持续发展。
近年來,隨著大宗農產品貿易的迅速增加,農產品貿易引起的資源與環境效應評價日趨凸顯。為定量反映我國大豆供給變化的環境效應,本研究使用改進的生態足跡分析方法,對我國1986-2009年的大豆供給的耕地足跡和能源足跡進行瞭定量測算,耕地足跡按照生產國單產進計算,能源足跡攷慮瞭生產過程中化肥、機械投入和運輸過程中的能源消耗。結果錶明:(1)我國大豆供給的耕地足跡呈不斷增加的趨勢,且進口引起的耕地足跡增速大于國內耕地足跡增速;(2)化肥及機械投入的不同是導緻我國及進口來源國大豆能源足跡產生差異的主要原因;(3)對不同生產國的大豆耕地和能源足跡的對比錶明,我國生產單位大豆隱含的耕地足跡和能源足跡均高于其他進口來源國,從資源利用角度而言,大豆國際貿易提高瞭全毬農業資源的利用率,保證瞭我國農業的可持續髮展。
근년래,수착대종농산품무역적신속증가,농산품무역인기적자원여배경효응평개일추철현。위정량반영아국대두공급변화적배경효응,본연구사용개진적생태족적분석방법,대아국1986-2009년적대두공급적경지족적화능원족적진행료정량측산,경지족적안조생산국단산진계산,능원족적고필료생산과정중화비、궤계투입화운수과정중적능원소모。결과표명:(1)아국대두공급적경지족적정불단증가적추세,차진구인기적경지족적증속대우국내경지족적증속;(2)화비급궤계투입적불동시도치아국급진구래원국대두능원족적산생차이적주요원인;(3)대불동생산국적대두경지화능원족적적대비표명,아국생산단위대두은함적경지족적화능원족적균고우기타진구래원국,종자원이용각도이언,대두국제무역제고료전구농업자원적이용솔,보증료아국농업적가지속발전。
With the increasing of international agricultural trade, more and more attention has been paid on the resources flow hidden in the trade and its environmental effect. The aim of this paper is to quantify the environmental effect of China's soybean trade using the ecological footprint analysis. This paper measuring and locating China's soybean supply footprints in terms of cropland and energy land from 1986-2009, it identify the cropland location by source country. The energy footprint calculation is based on the input of fertilizer and mechanism during the production stage, and the transportation also been considered. The results show that cropland footprint of China's soybean supply has increased gradually, and the import footprint takes the major weight; the difference in fertilizer and mechanism input makes the energy footprint varies between countries. Through comparison of the footprint with source countries, China has higher cropland footprint and energy footprint per ton, the soybean trade between China and other countries can increase land productivity at global level and make China's agricultural more sustainable.