旅游用地生态优化是实现旅游用地持续利用与管理的重要途径。为弥补目前该领域关于时空布局和土地类型结构优化研究的不足,构建了基于生态适宜性和生态绿当量的ES-EGE(Ecological Suitability and Ecological Green Equivalent)旅游用...旅游用地生态优化是实现旅游用地持续利用与管理的重要途径。为弥补目前该领域关于时空布局和土地类型结构优化研究的不足,构建了基于生态适宜性和生态绿当量的ES-EGE(Ecological Suitability and Ecological Green Equivalent)旅游用地生态优化模型,包括时空优化配置模型和类型结构优化模型。借助3S技术,运用基于生态适宜性的旅游用地时空优化配置模型进行时空分析,得到珠海市旅游用地布局的生态适宜性分区图,未来依次布局西部生态适宜区内的康体休闲度假旅游用地项目、中部生态适宜区和生态较适宜区内的游乐、会展、游艇、高尔夫等特色旅游项目、东部生态较适宜区内特色岛屿的海洋休闲度假、运动游乐和生态休闲项目。现有旅游用地中,对已布局在生态非适宜区内的用地进行生态修复,将其中至少5.74%的建设用地调整为林地;运用基于生态绿当量的旅游用地类型结构优化模型分析计算,得出在土地利用类型结构方面,除将全部草地调整为林地外,还需将至少13.04hm2的建设用地调整为林地;综合时空优化配置模型和类型结构优化模型得出珠海市旅游用地生态优化结果空间分布图。建议生态非适宜区、生态较适宜区和生态适宜区建设用地所占比例分别不超过总用地面积的10.92%、15.13%%和52.48%。模型计算结果可为珠海市旅游用地生态优化与管理决策提供参考。展开更多
With four ecological migration zones in Huamachi Town of Yanchi County in Ningxia Autonomous Region as the object of study,we carry out the evaluation of ecological benefits in ecological migration zone. Using the SPO...With four ecological migration zones in Huamachi Town of Yanchi County in Ningxia Autonomous Region as the object of study,we carry out the evaluation of ecological benefits in ecological migration zone. Using the SPOT satellite remote sensing image in 2008 and UAV aerophotographic image in 2013,we first monitor and analyze the land use change over five years in the study area,and then adopt ecological green equivalent evaluation model for the evaluation of ecological benefits in the ecological migration zone. Studies have shown that:( i) from 2008 to 2013,the ecological green equivalent in the study area was increased and the ecological environment was improved;( ii) the ecological green equivalent in the study area was less than 1 in 2008 and 2013,and ecological environment was still fragile in the migration zone;( iii)the forest coverage rate of the study area was 20% less than the minimum forest coverage rate of the United Nations,but 15% higher than the forest coverage rate of the Ministry of Environmental Protection. There is a large gap between the forest coverage rate based on ecological green equivalent and optimal forest coverage rate,suggesting that the land use still needs to be adjusted in study area,and it is necessary to increase efforts to strengthen ecological restoration and continue to implement forest conservation,returning land for farming to forestry and other measures.展开更多
文摘旅游用地生态优化是实现旅游用地持续利用与管理的重要途径。为弥补目前该领域关于时空布局和土地类型结构优化研究的不足,构建了基于生态适宜性和生态绿当量的ES-EGE(Ecological Suitability and Ecological Green Equivalent)旅游用地生态优化模型,包括时空优化配置模型和类型结构优化模型。借助3S技术,运用基于生态适宜性的旅游用地时空优化配置模型进行时空分析,得到珠海市旅游用地布局的生态适宜性分区图,未来依次布局西部生态适宜区内的康体休闲度假旅游用地项目、中部生态适宜区和生态较适宜区内的游乐、会展、游艇、高尔夫等特色旅游项目、东部生态较适宜区内特色岛屿的海洋休闲度假、运动游乐和生态休闲项目。现有旅游用地中,对已布局在生态非适宜区内的用地进行生态修复,将其中至少5.74%的建设用地调整为林地;运用基于生态绿当量的旅游用地类型结构优化模型分析计算,得出在土地利用类型结构方面,除将全部草地调整为林地外,还需将至少13.04hm2的建设用地调整为林地;综合时空优化配置模型和类型结构优化模型得出珠海市旅游用地生态优化结果空间分布图。建议生态非适宜区、生态较适宜区和生态适宜区建设用地所占比例分别不超过总用地面积的10.92%、15.13%%和52.48%。模型计算结果可为珠海市旅游用地生态优化与管理决策提供参考。
基金Supported by National Natural Science Foundation of China(41161081)
文摘With four ecological migration zones in Huamachi Town of Yanchi County in Ningxia Autonomous Region as the object of study,we carry out the evaluation of ecological benefits in ecological migration zone. Using the SPOT satellite remote sensing image in 2008 and UAV aerophotographic image in 2013,we first monitor and analyze the land use change over five years in the study area,and then adopt ecological green equivalent evaluation model for the evaluation of ecological benefits in the ecological migration zone. Studies have shown that:( i) from 2008 to 2013,the ecological green equivalent in the study area was increased and the ecological environment was improved;( ii) the ecological green equivalent in the study area was less than 1 in 2008 and 2013,and ecological environment was still fragile in the migration zone;( iii)the forest coverage rate of the study area was 20% less than the minimum forest coverage rate of the United Nations,but 15% higher than the forest coverage rate of the Ministry of Environmental Protection. There is a large gap between the forest coverage rate based on ecological green equivalent and optimal forest coverage rate,suggesting that the land use still needs to be adjusted in study area,and it is necessary to increase efforts to strengthen ecological restoration and continue to implement forest conservation,returning land for farming to forestry and other measures.
