CAJ | 학술논문

基于1980～2005年江苏省环太湖地区4期土地利用遥感数据，在GIS技术支持下，构建了4个时序单元的土地利用转移信息图，分析了1980～2005年土地利用转移的主要单元。根据其土地利用结构特征，构造了生态风险指数。结果表明，江苏省环太湖地区1980～2005年的生态风险指数呈持续上升趋势，1980年和1990年处于低生态风险等级，2000年和2005年处于中生态风险等级。主要原因是低生态风险用地转移到高生态风险用地面积较多，建设用地快速扩展，造成生态风险不断上升。
기우1980～2005년강소성배태호지구4기토지이용요감수거，재GIS기술지지하，구건료4개시서단원적토지이용전이신식도，분석료1980～2005년토지이용전이적주요단원。근거기토지이용결구특정，구조료생태풍험지수。결과표명，강소성배태호지구1980～2005년적생태풍험지수정지속상승추세，1980년화1990년처우저생태풍험등급，2000년화2005년처우중생태풍험등급。주요원인시저생태풍험용지전이도고생태풍험용지면적교다，건설용지쾌속확전，조성생태풍험불단상승。
Based on four land use remote sensing data of the around Taihu Lake Regions in Jiangsu Province from 1980 to 2005 and supported by GIS technology, this paper constructed land-use transfer information map in 4 units of the timing pattern, analyzed the main unit of land-use transfer from 1980 to 2005. We constructed the ecological risk index according to land use structure characteristic. The results show that the ecological risk index is continued upward trend from 1980 to 2005. It＇s low ecological risk level in 1980 and 1990, medium level ecological risk in 2000 and 2005. The main reason is that the land area of low ecological risk convert high ecological risk is more. The rapid expansion of construction land, resulting in ecological risk has been rising.