【摘要】 对山东半岛海岸带土地利用适宜性进行分析,可综合反映土地资源的利用现状,对土地利用规划具有重要意义。利用LandUSEM模型,以1990年、1995年、2000年、2005年、2010年和2015年6期土地利用类型数据、DEM数据、1∶100万土壤类型图为基础,对山东半岛海岸带土地利用适宜性进行评价,同时得到各用地类型适宜分布的环境因子指标范围;在此基础上,对2020年土地利用适宜性现状进行评价。结果表明:(1)山东半岛海岸带总体各时期土地利用适宜性均以比较适宜和非常适宜为主,其面积占比为60%～72%,且各区域土地适宜性趋于稳定状态。(2)黄河三角洲、莱州湾及屺坶岛高角-绣针河口岸段各时期主要土地利用变化类型分别为未利用地、水域用地及耕地向城乡建设用地转化。(3)2020年耕地比较适宜类型以上面积占84%,林地占50%,城乡建设用地占70%;且耕地适宜性与2015年相比未发生明显变化,林地适宜性提高,城乡建设用地适宜性降低。该研究以适宜性为评价指标,研究结果可为山东半岛海岸带土地的可持续利用提供科学依据。更多还原

【Abstract】 The analysis of the suitability of land use in the coastal zone of Shandong Peninsula can comprehensively reflect current situation of land resources utilization, which is of great significance to land use planning. LandUSEM model was used to evaluate the suitability of land use of coastal zone in Shandong Peninsula based on six periods of land use type data in 1990, 1995, 2000, 2005, 2010 and 2015, DEM data and 1∶1 million soil type map, and the index range of environmental factors suitable for each land use type distribution was obtained.On this basis, the current situation of the suitability of land use in 2020 was evaluated. The results show that:(1)The overall land use suitability of Shandong Peninsula coastal zone in each period is mainly relatively suitable and particularly suitable, accounting for 60 to 72 percent of the total area, and the land suitability of each region tends to be stable.(2)The main types of land use change in the Yellow River Delta, Laizhou Bay and coastal section of Qimu Island Gaojiao-Xiuzhen estuary are the conversion of unused land, water area land and cultivated land to urban and rural construction land, respectively.(3)In 2020, above comparative suitability of cultivated land accounts for 84 percent, forest land accounts for 50 percent, and urban and rural construction land accounts for 70 percent. Compared to 2015, the suitability of cultivated land does not change significantly, the suitability of forest land increase, and the suitability of urban and rural construction land decrease. This study takes suitability as the evaluation index, and the results can provide scientific basis for the sustainable use of coastal land in Shandong Peninsula.更多还原