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中国科学院大学学报 ›› 2017, Vol. 34 ›› Issue (5): 582-590.DOI: 10.7523/j.issn.2095-6134.2017.05.008

• 环境科学与地理学 • 上一篇    下一篇

虚拟土定量测算——以甘肃省为例

罗开盛1,2, 陶福禄1,2   

  1. 1 中国科学院地理科学与资源研究所陆地表层格局与模拟院重点实验室, 北京 100101;
    2 中国科学院大学, 北京 100049
  • 收稿日期:2016-05-13 修回日期:2016-09-02 发布日期:2017-09-15
  • 通讯作者: 陶福禄,E-mail:taofl@igsnrr.ac.cn
  • 基金资助:
    国家自然科学基金(91325302)资助

Quantitative calculations of virtual land in Gansu Province

LUO Kaisheng1,2, TAO Fulu1,2   

  1. 1 Key Laboratory for Surface Patter and Processes, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2016-05-13 Revised:2016-09-02 Published:2017-09-15

摘要: 固定的土地资源可以通过嵌入到产品中的虚拟土在区域间进行流动。研究虚拟土有利于实现区域间资源优化配置和土地资源的全球化。虚拟土的定量测算亟待解决。基于经济与社会发展统计数据和统计方法测算甘肃省农产品、畜牧产品、森林和工业产品的虚拟土数量。结果如下。1)糜子、胡麻、大豆、谷子、棉花、油菜、大麻烟叶、当归和冬小麦属于土密集型作物;洋芋、春小麦、高粱、玉米、葡萄、苹果和稻谷的虚拟土比较适中;蔬菜、甜菜和白兰瓜属于土稀疏型作物。2)棉花、油料、稻谷、甜菜、葡萄和玉米农产品的虚拟土分别是5.91、5.67、1.45、0.23、1.77和2.10 m2/kg。牛、马和绵羊三种活动物虚拟土分别是69.28、46.68、48.56 m2/kg。牛肉、羊肉、羊毛和羊绒的虚拟土分别为197.91、115.61、693.66和5.39 m2/kg。葡萄酒的虚拟土为76.84 m2/kg。虚拟土地数量具有累积放大效应,随着产品链的增加而增多。虚拟土的对比关系是:工业产品 > 饲养动物 > 农业加工产品 > 农作物。3)在甘肃省的林地中,阔叶林的虚拟土比针叶林和混交林多。自然林的虚拟土远大于人工林;甘肃省河东地区林地虚拟土大于河西地区。增加垂直方向上的分层数以及缩短生产周期是降低虚拟土的有效途径,例如发展立体农业,增加建筑物高度。

关键词: 虚拟土, 测算, 土密集型, 甘肃

Abstract: The virtual land calculation has not been paid enough attention.In this work,the concept of virtual land and its calculation methods were proposed and applied in Gansu Province based on the statistical analysis method and the economic and social statistical data.Results are given as follows.1) Broomcorn millet,linseed,bean,soybeans,millet,cotton,rape,hemp,tobacco,angelica,and winter wheat belong to the land intensive crops;the virtual lands of yam,spring wheat,sorghum,corn,grapes,apples,and rice are moderate;and vegetable,sugar beet,and honey melon belong to the land sparse crops.2) Virtual lands of cotton,oil crop,rice,sugar beet,grapes,and corn in Gansu Province are 5.91,5.67,1.45,0.23,1.77,and 2.10m2/kg,respectively;virtual lands of live cattle,horses,and sheep in Gansu Province are 69.28,46.68,and 48.56m2/kg,respectively;and virtual lands of beef,mutton,wool,wines,and cashmere are 197.91,115.61,693.66,76.84,and 5.39m2/kg,respectively.Virtual land has an accumulation amplification effect and increases with the product line.The order of virtual lands is:industrial products > animal products > crop products > crops.3) It is also found that virtual land of the broad-leaved forest is much larger than that of the coniferous and mixed forest and that virtual land of the natural forest is larger than that of the artificial forest.

Key words: virtual land, calculation, land intensive products, Gansu Province

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