关键词: 刺槐, 刺槐, Genomic-SSR, EST-SSR, 遗传差异性

Abstract: In order to analyze the changes of ecological bearing capacity in the years of 2000-2010 in Henan province, This paper applied the ecological footprint method, using the data of three periods,2000,2005 and 2010, analyzed per capita ecological footprint, ecological supply and per capita ecological deficit and per capita ecological carrying capacity index .The results show that: (1) the per capita ecological footprint in Henan Province increased sharply from 0.8288 hm2 in 2000 to 2.0368 hm2 in 2005, while declined to 1.8739 hm2 by 2010; (2) the per capita ecological supply between 2000 and 2010 reduced year by year ,which dropped from 0.3994 hm2 to 0.3667 hm2,And the per capita ecological deficit added drasticly from 0.37 hm2 in 2000 to 1.61 hm2 in 2005 while decreased to 1.46 hm2 by 2010;(3) ecological bearing capacity index are all greater than 1, which are in a state of overload. As the change of economic growth mode, the situation eased somewhat although it is still in a state of overload.