| 生物土壤与生态 |
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| Succession of Grassland Ecological Services of Inner Mongolia |
| Baoyin-Dureng1,2, GUO Xiao-chuan1, CAO Jian-min2 |
| 1.College of Economics and Management, Inner Mongolia University, Hohhot 010021, China; 2.College of Economics and Management, Inner Mongolia Agricultural University, Hohhot 010019, China |
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Abstract In view of evaluation and judgment that some ecologists and economists made to the mathematical models, index system and indices weight of ecological services marginal value, a model of grassland ecological services marginal value for Inner Mongolia was established with the Grey System Theory in this paper. The model was applied to evaluate the ecological services of Inner Mongolia steppe in the last 60 years based on statistical data from 1947 to 2006. The result shows that there was a generally descending trend in ecological services succession track of Inner Mongolia Steppe during this period, in detail, with slow decrease in early stage, rapid decrease in middle stage and very rapid decrease in later stage. Steppe reclamation, as a possible reason of ecological services decrease, was also discussed in this paper.
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Received: 23 September 2009
Published: 20 May 2010
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2010, Vol. 30 
