【摘要】 以生态系统服务为基础,通过比较不同适宜性耕地与草地的生态系统服务价值的高低,对奈曼旗的耕地生态补偿标准进行探讨。先利用谢高地等人制定的中国不同陆地生态系统单位面积生态服务价值表,计算出了适合于本研究区草地生态系统服务价值。再根据研究区不同适宜性耕地单位面积粮食作物的产量,利用当量因子法,制定了适合于本研究区的当量因子表并计算出了不同适宜性耕地的生态系统服务价值。通过比较奈曼旗不同适宜性耕地与草地的生态系统服务价值可以看出:研究区内不适宜性耕地的生态系统服务价值(992.55元/hm2·a)与临界适宜性耕地的生态系统服务价值(3 941.78元/hm2·a)要低于草地的生态系统服务价值(7 303.41元/hm2·a)。因此,把上述2种耕地退为草地,将会提高土地的生态系统服务价值,同时有利于沙漠化治理及生态环境的恢复。更多还原

【Abstract】 Based on the ecosystem service,the eco- compensation standard of farmland in Naiman has been discussed through comparing the ecosystem service value of farmland and grassland with different suitability. Using the per unit area ecosystem service value of different terrestrial ecosystem in China( Xie,et al,2003) to calculate the ecosystem service value suitable for the grassland in the study area. According to the per unit area output of crops of different suitability farmland in the study area and using equivalent factor method to make the equivalent factor table suitable for the study area,the ecosystem service value of different suitability farmland has been calculated. Through comparing the ecosystem service value of different suitability farmland and grassland in Naiman,the results show that in the study area,the ecosystem service value for non- suitable farmland( 992. 55 Yuan / hm2·a) and critical suitable farnland( 3 941. 78 Yuan / hm2·a) are lower than that of the grassland( 7 303. 41 Yuan/hm2·a). Thus,it can improve the ecosystem service value of land to return the above- mentioned two kinds of farmland to grassland,at the same time,it also can be favorable to the desertification control and the ecoenvironment restoration.更多还原