内蒙古巴林右旗耕地及耕地后备资源生态安全研究  

Study on the Ecology Security Research of Cultivated Land and its Reserve Resources in Balinyouqi of Inner Mongolia Autonomous Region

作　　者：贾树海[1] 李金典 谢东祺[2] 方向伟 

机构地区：[1]沈阳农业大学土地与环境学院农业部东北耕地保育重点实验室,沈阳110866 [2]赤峰市国土资源调查规划院,赤峰024000 [3]赤峰市农畜产品质量安全管理站,赤峰024000

出　　处：《土壤通报》2016年第4期777-782,共6页Chinese Journal of Soil Science

基　　金：国土资源部耕地后备资源调查评价子项目2014(13)资助

摘　　要：耕地及耕地后备资源的生态安全问题是当下的热点问题,对于耕地及耕地后备资源生态风险的研究势在必行。本研究首次从小尺度出发,以内蒙古巴林右旗的耕地及耕地后备资源图斑为研究对象,假拟耕地后备资源为耕地,以宜耕资源图斑为微观尺度的生态系统,应用AHP层次分析模型从土地暴露度、立地条件与土壤属性及斑块景观格局三个方面选取评价指标,建立巴林右旗耕地及耕地后备资源生态安全评价指标体系,并通过熵权法对模糊综合评价模型的获取权重过程进行改进,借助地统计学、土壤学和景观生态学的理论方法,对内蒙古巴林右旗耕地及耕地后备资源的生态安全进行评价分析。研究结果表明,耕地图斑面积为91995.49 hm2,耕地后备资源图斑面积为275960.00 hm2,总面积共367978.21 hm2。其中,耕地中有26.59%属于高度风险状态;耕地后备资源中55.09%属于高度风险,二者面积总和占评价总面积的47.97%。巴林右旗土地荒漠化严重,耕地及耕地后备资源生态风险总体处于严重水平,有待于针对性治理。Now it is the hit problem that the ecology security of cultivated and reserve resources of cultivated land. And it is imperative that the ecological risk research of cultivated land and its reserve resources. This research selected Balinyouqi of Inner Mongolia as study area, supposed reserve resources of cultivated land as cuhivated land, regarded the arable land resources polygon as small scale ecosystems, utilized the Analytic Hierarchy Model to choose indexes from the exposure degree of the land, site conditions and soil property and landscape, established the evaluation system of cultivated land and its reserve resources, and finally used the Entropy method to improve the process that the obtaining the weights through the fuzzy comprehensive evaluation model. The geostatistical, soil science and theoretical methods of landscape ecology were used to analyze the ecological safety of cultivated land and its reserve resources in Balinyouqi of Inner Mongolia. Results showed that： the area of cultivated land polygons was 91995.49 hm2, the area of reserve resources of cultivated land polygons was 275960 hm2, and total area was 367978.21 hm2. Among them, 26.59% of cultivated land belonged to the high risk status and 55.09% of reserve resources of cultivated land belonged to the high risk level. The both area accounted for 47.97% of total area. The desertification of Balinyouqi was serious. The ecological risk of cultivated land and its reserve resources was in a serious level and needed to be specifically controlled.

关 键 词：巴林右旗 耕地及耕地后备资源 生态安全 评价 

分 类 号：S791.2[农业科学—林木遗传育种]