基于土地利用效益的甘肃省河西少数民族地区土地资源可持续利用评价——以甘肃省阿克塞哈萨克族自治县为例

Evaluation on the sustainable utilization of land resources based on the land use efficiency in Hexi area of Gansu Province——Taking Akesai Kazakh Autonomous County as case study

为科学评价阿克塞县的土地资源可持续利用状况,构建了相应的评价指标体系,并对阿克塞县2002～2010年的土地资源利用状况进行了综合评价.结果表明：阿克塞县的土地利用综合效益从2002年的33.661 1增加到2010年的50.387 6,说明现行的土地利用规划方针与土地利用政策有利于土地利用综合效益的进一步提高;阿克塞县土地利用的经济、社会、生态、环境效益之间的协调度呈不协调状态;土地利用的社会效益和生态效益分别从2002年的0.189 1、0.174 3减少到2010年的0.174 3和0.148 0,土地利用的经济效益和环境效益从2002年的29.720 0和3.577 4分别增加到2010年的44.391 2和5.674 1,说明阿克塞县土地利用关系和土地利用行为越来越不和谐,片面追求经济发展和环境保护指标的特征明显,损害了土地利用中的生态和社会效益.

In order to estimate scientifically of sustainable use of land resources in Akesai County, build the evaluation index system,a comprehensive evaluation was carried out on the sustainable use of land re- sources in Akesai County from 2002 to 2010. The research showed that. In Akesai County, comprehensive land use efficiency increased from 33. 661 1 in 2002 to 50. 387 6 in 2010,this showed that the current policy of land use planning and land use policies was conducive to further improve the comprehensive land use efficiency. Land use economic, social, ecological and environmental efficiency of coordination degree was not in a harmonious state. The social efficiency and ecological efficiency of land use decreased from 0. 189 1 and 0. 174 8 in 2002 to 0. 174 3 and 0. 148 0 in 2010,the economic efficiency and environmental efficiency of land use increased from 29. 720 0 and 3. 577 4 in 2002 to 44. 391 2 and 5. 674 1 in 2010,this indicated that the relationship between land use and land use behavior became more suing of economic development and environmental protection and more unharmonious, the one-sided purindex characteristics were obvious, which damaged ecological and social effects of land use.