生态环境学报
生態環境學報
생태배경학보
ECOLOGY AND ENVIRONMENT
2010年
1期
191-196
,共6页
生态足迹%净初级生产力%生物承载力%生态盈亏%均衡因子
生態足跡%淨初級生產力%生物承載力%生態盈虧%均衡因子
생태족적%정초급생산력%생물승재력%생태영우%균형인자
ecological footprint%net primary production%biological capacity%ecological reserve or deficit%equivalence factor
生态足迹模型因其可以定量度量生态可持续发展、计算简单、结论易懂、全球可比等特点,提出之后得到了大量的关注和应用,同时也面临着一些质疑和争论.文章介绍了一种基于净初级生产力的生态足迹理论和计算方法,并以该方法和传统生态足迹模型分别计算了中国1961-2007年的生态足迹,对计算结果进行了对比分析.结果表明,两种生态足迹模型的计算结果具有较高的相关性,表明基于净初级生产力的生态足迹模型结果可信.该种方法能够克服传统生态足迹模型的部分缺陷,在均衡因子选取、土地生态功能假设、CO_2吸收等方面有了较大改进,能够较好地反映不同生态系统在生产力上的差异;在时间序列分析方面也更加合理.但该方法本身同时存在着计算方法不完善、对生态系统变化不敏感等问题,如何更紧密地结合生态足迹和净初级生产力是需要进一步研究的内容.
生態足跡模型因其可以定量度量生態可持續髮展、計算簡單、結論易懂、全毬可比等特點,提齣之後得到瞭大量的關註和應用,同時也麵臨著一些質疑和爭論.文章介紹瞭一種基于淨初級生產力的生態足跡理論和計算方法,併以該方法和傳統生態足跡模型分彆計算瞭中國1961-2007年的生態足跡,對計算結果進行瞭對比分析.結果錶明,兩種生態足跡模型的計算結果具有較高的相關性,錶明基于淨初級生產力的生態足跡模型結果可信.該種方法能夠剋服傳統生態足跡模型的部分缺陷,在均衡因子選取、土地生態功能假設、CO_2吸收等方麵有瞭較大改進,能夠較好地反映不同生態繫統在生產力上的差異;在時間序列分析方麵也更加閤理.但該方法本身同時存在著計算方法不完善、對生態繫統變化不敏感等問題,如何更緊密地結閤生態足跡和淨初級生產力是需要進一步研究的內容.
생태족적모형인기가이정량도량생태가지속발전、계산간단、결론역동、전구가비등특점,제출지후득도료대량적관주화응용,동시야면림착일사질의화쟁론.문장개소료일충기우정초급생산력적생태족적이론화계산방법,병이해방법화전통생태족적모형분별계산료중국1961-2007년적생태족적,대계산결과진행료대비분석.결과표명,량충생태족적모형적계산결과구유교고적상관성,표명기우정초급생산력적생태족적모형결과가신.해충방법능구극복전통생태족적모형적부분결함,재균형인자선취、토지생태공능가설、CO_2흡수등방면유료교대개진,능구교호지반영불동생태계통재생산력상적차이;재시간서렬분석방면야경가합리.단해방법본신동시존재착계산방법불완선、대생태계통변화불민감등문제,여하경긴밀지결합생태족적화정초급생산력시수요진일보연구적내용.
Ecological footprint model is an important and effective method to quantify the biosphere's ability to regenerate; it has a number of advantages: the method is simple, the explanation of conclusions is easy, and the conclusion is comparable at the global range. Due to these characteristics, ecological footprint has been made a great deal of attention and application after being proposed. Many researchers put forward lots of suspicions and debates about its theories, calculated methods, choice of equivalence factor, et al. In this paper, a new approach of ecological footprint, which is based on net primary productivity method, is presented in detail. The ecological footprints of China were calculated during 1961-2007 with the new approach and the traditional method. The results of the two methods of ecological footprint have good correlation relationship, so the new approach is reliable. The new approach can overcome some defects of the traditional method in terms of choice of equivalence factor, assumptions of land functions and CO_(2) adsorption, and so on. The new approach is more reasonable than the traditional method in trend analysis of time series. However, the new approach has its own problems, such as the imperfect of calculating course, insensitivity to changes in ecosystem, and so on. Studies of closer integration of the ecological footprint and net primary productivity are needed.
