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作 者:王德辉[1,2] 周慧杰[3] 王萌[2] 吴波[4] 董福湘[5]
机构地区:[1]广州中海达卫星导航技术股份有限公司,广东广州511400 [2]中国科学院广州地球化学研究所地球系统科学与可持续发展研究中心,广东广州510640 [3]广西师范学院地理科学与规划学院,广西南宁530001 [4]赣南师范学院,江西赣州341000 [5]长春工程学院勘查与测绘学院,吉林长春130021
出 处:《安徽农业科学》2015年第11期238-240,284,共4页Journal of Anhui Agricultural Sciences
基 金:国家自然科学基金项目(4136102);吉林省环境保护科技项目(吉环科2010-26);广州市及番禺区博士后基金项目(125124)
摘 要:基于压力-状态-响应(P-S-R)模型,遴选16个评价指标构建吉林省西部生态环境安全评价体系,利用遥感及统计数据,对吉林省西部地区进行基于空间的生态安全评价。结果表明,吉林省西部各县级行政单元生态安全处于较安全、临界安全和较不安全3个等级,生态安全指数最高的为前郭尔罗斯蒙古族自治县(0.76),最低的为通榆县(0.37)。较安全等级区包括前郭尔罗斯、镇赉、洮南和乾安4个县(市),生态环境相对较好,人类活动对生态环境的干扰小,但自然本底条件相对欠佳;临界安全等级包括扶余、大安、宁江、洮北和长岭5个县(市、区),生态环境一般,自然本底条件较好,但人类活动干扰大,生态建设能力不足;较不安全等级为通榆县,地热指数高,人类活动干扰小,但自然本地条件差,生态建设能力低,生态环境较差。This study selects 16 evaluation indicators to set up an ecological environment security evaluation system based on the pressurestate-response( P - S - R) model to evaluate the spatial ecological security of West Jilin by using remote sensing data and statistical data. The result shows that the ecological security of western administrative units at the county level in Jilin is at the relatively secure, critical secure and relatively insecure levels. The highest ecological security index is Qian Gorlos Mongol Autonomous County' s 0.76, and the lowest is Tongyu County' s 0.37. The relatively secure level areas include Qian Gorlos Mongol Autonomous County, Zhenlai County, Taonan County and Qian' an County, of which the relatively good ecological environment is less impacted by human activities, but their natural conditions are not so good. The critical secure level areas include Fuyu County, Da' an County, Ningjiang County, Taobei County and Changling County, of which the ecological environment is not good impacted heavily by human activities with inadequate ecological construction capabilities, though the natural conditions are not bad. The relatively insecure level area is Tongyu County with poor ecological environment and local natural conditions and inadequate ecological construction capabilities, though the geothermal index is high with little human disturbance.
分 类 号:S181.3[农业科学—农业基础科学]
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