荒漠绿洲额济纳生态空间占有与生态恢复空间研究

STUDY ECOLOGICAL FOOTPRINT AND ECOLOGICAL RESTORATION SPACE IN ON WADY OF EJINA BANNER

以2000年、2001年和2002年额济纳旗统计年鉴资料为研究对象,对额济纳绿洲进行生态空间占有和生态恢复空间分析,结果表明:生态空间占有需求从2000年~2002年是下降的,分别为1089.5262hm2、835.7679hm2和831.006hm2,生态空间占有供给是增加的,分别为366.296hm2、412.966hm2和414.546hm2,但生态空间占有呈亏损状态,不过亏损随年度呈下降趋势,分别亏损为,-723.2302hm2、-422.8019hm2和-416.46hm2。额济纳虽有11.4万km2的土地面积,但真正可以供人类居住的实有额济纳绿洲中的3.16万km2,只占总面积的27.57‰,在绿洲居住的人口已远超过生态承载力,其实际生态恢复空间是负值。按目前额济纳旗人均需生态空间45hm2,则绿洲的生态恢复空间在现有人口状况下,没有可恢复空间,所以在额济纳绿洲应该进行生态移民,以减少对绿洲的压力。

The ecological footprint and ecological restoration space in Ejina Banner,Inner Mongolia Autonomous Region,China during 2000～2002 were studied by local almanac documents.Results show that the ecological footprint need trend lower,it is 1 089.526 2hm2、835.767 9hm2 and 831.006 hm2 in 2000,2001 and 2002 respectively.Otherwise,the ecological footprint supply trend higher,it is 366.296hm2、412.966hm2 and 414.546hm2 respectively.However,there is deficit on footprint in Ejina Banner,-723.230 2hm2、-422.801 9hm2 and-...