Study on ecological footprint of the human activity intensity in Horqin sandy——A case of Naiman Banner
Naiman Banner is a typical desertified area in Horqin sandy in northern China. The land use from 1990 to 2000 in Naiman Banner was moniterd by using RS and GIS base on ecological footprint. Intensity and changes of human activities from 1990 to 2000 in Naiman Banner were analyzed. "The results showed: in study period, the human activity intensity enhanced with ecological footprint, ecological footprint changed from 1. 0144hm~2/per capita in 1990 to 1. 9735hm~2/per capita in 2000, that meant the ecological occupation of human was expanding; ecological capacity were respectively 2. 1760hm~2/per capita in 1990 and 2.2183hm~2/per capita in 2000, it was changed little in past ten years. There was some ecological remainder; ecological remainder were 1. 1616hm~2/per capita in 1990 and 0.2448hm~2/per capita in 2000, it was reduced clearly. Farmland had the highest capacity, it was the largest intensity and the largest reducing of ecological remainder. Ecological capacity of farmland were respectively 2.0330hm~2/per capita and 2. 0842hm~2/per capita in study period, and 93.43% and 93.95% of total ecological capacity. Ecological footprint of farmland were 0.6111hm~2/per in 1990 and 1. 6238hm~2/per capita in 2000 ,of 60.24% and 82.28% of and the total ecological footprint. Ecological remainder of farmland reduced from 142.19hm~2/per capita in 1990 to 0.4604hm~2/per capita in 2000. So farmland was the main productive land and under more pressure. Naiman Banner needed to control land use intensity, in particu-larly farmland in the future for ensuring the local ecological security.
Horqin sandyNaiman Bannerecological footprintstrength of human activity
NETL
NSTL
万方数据
维普
