1985年以来江苏省土地利用变化对人类活动程度的响应

利用1985、1995、2005和2008年4期遥感影像解译获取的土地利用变化数据,从土地利用变化速度、转移方向和土地利用程度方面,借助GIS空间分析和图谱分析技术及Ucinet社会网络分析软件,全面定量分析江苏省1985年以来人类活动作用下土地利用时空变化规律。研究表明:(1)1985~1995、1995~2005、2005~2008年3个时段江苏省的土地利用综合动态分别为12.95%、17.17%、15.03%,反应了人类活动对江苏省土地利用变化的影响程度呈现出"缓慢影响—剧烈影响—影响减缓"的倒U型曲线规律;(2)1985年以来,耕地、建设用地和水域之间的空间转移是江苏省土地利用转移的关键,也是人类影响土地利用最主要的表现形式,3种地类的相互转移占所有土地转移流的80%以上,其中耕地转为建设用地所占比例最大,主要分布苏锡常及南京4市的市辖区,以及昆山、江阴等经济发达的县市及苏北的宿迁市、淮安市、徐州市;(3)1985年以来,追求净产出(利润)的增长是土地利用变化的内在动力,导致建设用地增加及耕地减少,使得全省土地利用程度整体水平不断升高;受可驱动的有效资本量控制,经济发达的苏南地区一直是人类活动影响土地利用最为剧烈的区域,而苏北地区随着经济实力的不断提升土地利用受人类活动影响的程度也在逐渐增强。     

地方政府土地出让策略互动行为的检验及其影响分析

本文以山东省设区市地方政府土地出让行为作为研究对象,通过构建空间面板模型,从价格和数量两个维度,全面检验了地方政府商服、住宅、工业用地出让的策略互动行为,并利用空间计量工具,分析了地方政府土地出让策略互动行为的影响。研究发现:(1)山东省内地方政府商服、住宅、工业用地出让价格以及工业用地出让量存在显著的策略互动,地方政府的商服、住宅、工业用地出让价格以及工业用地出让量,不仅会受城市自身情况的约束,还会受邻近地区地方政府土地出让行为的影响,外在表现为你涨我跌、你增我减的反向变动格局;(2)由于未考虑策略互动,传统计量经济学非空间面板模型对地方政府土地出让行为影响因素的估计普遍存在偏误。对于商服用地出让价格,第三产业比重、人口密度的影响分别被低估了33.33%、13.08%;对于住宅用地出让价格,人口城镇化率、人均可支配收入的影响分别被低估了20.00%、9.98%,人口密度的影响被高估了32.34%;对于工业用地出让价格,人均外商直接投资的影响被高估了3.68%;对于工业用地出让量,第二产业比重、地均工业产值的影响分别被高估了13.95%、31.36%;(3)地方政府土地出让行为的影响因素普遍存在明显的空间溢出效应。对于商服用地出让价格,具有空间溢出效应的影响因素为人口密度;对于住宅用地出让价格,具有空间溢出效应的影响因素为人口城镇化率、人口密度、人均可支配收入;对于工业用地出让价格,具有空间溢出效应的影响因素为人均外商直接投资、地均固定资产投资;对于工业用地出让量,具有空间溢出效应的影响因素为第二产业比重、地均固定资产投资。     

Environmental accounting of natural capital and ecosystem services for the US National Forest System

The National Forests of the United States encompass 192.7?million acres (78?million hectares) of land, which is nearly five percent of the total land area of the nation. These lands are managed by the US Forest Service (USFS) for multiple uses, including extraction of timber, production of fossil fuels and minerals, public recreation, and the preservation of biodiversity, clean air, water, and soils. The USFS is interested in valuing the natural capital within, and the ecosystem services provided by, their lands. This is in part to justify expenditures in a time of limited resources. We used emergy and an environmental accounting approach, to quantify the ecosystem services, the exported environmental goods and information provided by National Forest System (NFS) lands, and the natural capital residing on those lands. Environmental accounting using emergy provides a method to value these flows of services and storages of capital using a common biophysical unit, the solar emjoule and its monetary equivalent the emdollar. We compare emdollar values to economic values gleaned from the literature. In 2005, the ecosystem services provided by USFS lands were equivalent to 197?billion emdollars, and the value of NFS natural capital was 24.3?trillion emdollars. Our evaluation suggests that the Federal Government budget allocation for the NFS ($5.55E+09 in 2005) was well spent, protecting 24.3?trillion emdollars in natural capital and insuring annual ecosystem services totaling 197?billion emdollars. Monetary values for some natural capital and ecosystem services are similar to emergy-derived values (resources like fish, wildlife, water, and firewood extracted from forests), and others are widely different (biodiversity, fossil, and mineral resources). There is large uncertainty associated with computing the environment’s contributions to society whether using emergy or accepted economic techniques; yet, the magnitude of these emergy-derived estimates suggests that even with the uncertainty, the values are significant and monetary expenditures for the Forest Service are justified.     

Land-use portfolios and the management of private landholdings in south-central Indiana

In the study of land-use and land-cover change as an important contributor to regional environmental change, linking household level land-use decisions to particular land-cover patterns has been an enduring challenge. The frequent conflation of land use and land cover has been appropriate and fruitful in regions where extractive activities are common, but the decoupling of household characteristics from land-cover choices in exurban landscapes may require that the two be treated separately. This research employs the concept of a land-use portfolio, defined as a unique combination of land use types, and land cover derived from remote sensing to examine the relationship between land use and land cover at the parcel scale. Data on the type and spatial organization of land use were collected for individual parcels through sketch maps constructed by land owners and then described quantitatively using GIS and spatial metrics from landscape ecology. The results of this analysis suggest that in the naturally forested region of south-central Indiana, parcels are frequently managed as multiple types of land use thereby supporting the portfolio approach. Generally, land-management complexity is related to land-cover fragmentation, but the strength of this relationship varies across portfolio types. In addition, substantial amounts of forest land cover occur in non-forest land uses further supporting the need to treat the two separately to accurately link land use intentions and land cover outcomes.     

生态脆弱区自然资本可持续利用及驱动机制--以宁夏为例

自然资本的分类测度和分区管理是可持续发展领域的核心议题。文章基于改进后的三维生态足迹模型,分析了2008—2017年宁夏及其各地级市自然资本利用的时空演变特征,并运用偏最小二乘法揭示了自然资本利用演变的驱动机制,旨在为生态脆弱区自然资本的可持续利用、社会经济的协调发展和生态文明建设提供参考。结果显示:①10年来宁夏人均生态足迹以年均5.01%的速率从3.146 hm²增至4.564 hm²,人均生态承载力相对稳定,人均生态赤字由2.462 hm²扩大至3.839 hm²,自然资本的供需矛盾愈加尖锐;市域尺度上,除固原市外其他各市生态赤字明显,总体上呈由南向北递增趋势。②足迹深度和足迹广度表明流量资本已无法满足需求,对存量资本的消耗成为社会经济发展的常态;市域尺度上,足迹深度呈“北高南低”的分布特征,而足迹广度的空间分布与其相反,二者存在显著的地域互补性。③从地类组分构成来看,林地、草地和水域是全区存量资本消耗的主要方式,耕地尚处于流量资本占用状态,建筑用地已过渡为存量资本;市域尺度上,自然资本利用的可持续性呈“南强北弱”格局,各地类间自然资本利用差异显著。④偏最小二乘回归模型揭示能源消耗、社会消费、经济发展和资源禀赋条件是影响宁夏自然资本利用的显著因素,而人口规模、对外贸易、生态建设、科技进步和产业结构演化对自然资本利用的影响程度较轻;市域尺度上自然资本利用的驱动力差异显著。最后,基于自然资本利用空间分异特征,从供需视角提出了自然资本可持续利用的对策建议和优化路径。     

Determination of the optimal land use allocation pattern in Nowshahr County,Northern Iran

Regional models of land use change are evaluated as a way of identifying land use pattern based on recent quantitative and probabilistic approaches. Differentiation between models in this area is the result of the approach to the concept of land use and type of indicators used in the modeling process. Since the determination of the optima land use pattern, due to the different uses of land based on the availability of regional capabilities and spatial difference in land use, depends on an integrated model, there must be a model that can assess the existing conditions of the region and present reasonable models of land use according to regional capacities and potentials. In this research, we developed a model to present the Optimal Land Use Allocation Pattern (OLUAP) for maximizing the advantages of change and determining the methods of influencing land use change priorities. This model uses spatial models and analysis, moderates the cost-benefit function, and calculates the allocation priorities of various areas based on regional conditions. The model results show that a wide scope of Nowshahr area is allocated to natural and agricultural uses. At the same time, a limited area has been assigned to urban and industrial uses. In addition, it shows that northern strip of the region due to higher accessibility of services and infrastructures is more suited than other regions to urban and industrial areas, and these two uses have first and second priority, respectively. Besides, according to the man-made environment and the special environmental conditions, the model allocates the central lowlands and southern parts sporadically to agricultural and natural areas as first and second priorities. Since the model is spatial optimization, the suggestions of the model show the OLUAP. Therefore, one can see the optimal condition for each plot and compare it with the existing land use.     

基于GIS的高原湖泊流域生态安全格局构建及优化研究——以星云湖流域为例

以星云湖流域自然人文环境特征、主要生态环境问题为出发点,结合景观生态学原理方法、熵值法和GIS空间分析技术,实现星云湖流域生态安全的空间分异格局及优化。选取海拔高程、坡度、土壤侵蚀强度、地质灾害易发性、土地覆被(利用方式和植被覆盖度)、人口密度、距自然保护区距离、距离建设用地和距水源距离等因素为阻力因子叠加生成综合阻力要素,根据GIS空间成本距离分析原理,引用最小累积阻力模型识别构建流域生态廊道和生态节点,进一步规划优化流域生态功能网络的结构和功能。研究表明:(1)从各安全等级面积比例和平均生态安全指数角度,星云湖流域中度安全占流域总面积的45.81%,高度安全为25.24%,较低安全为21.05%,不安全占7.9%,平均生态安全指数为2.95,流域生态安全总体处于中度安全,生态系统健康一般,但部分地区生态安全性较低,主要分布在南部、东部和北部地区,应重视这些区域的生态保护和建设;同时,坡度、水土流失因子和水资源(自然环境要素)、土地利用格局和距离建设用地(人类活动干扰要素)等因素是流域生态安全格局形成的主要因子;(2)识别规划了中枢生态源、核心型生态源斑块、一般生态源、多种级别的生态廊道和生态节点或战略点等构成的具有结构性和层次性的流域生态安全网络格局,对不同层次和结构的生态源、生态廊道和生态节点或战略点进行针对性建设保护,将有效提升流域生态系统的功能价值性和系统的完整性,进而加强流域生态稳定安全。     

Anthropogenic-driven changes with focus on the coastal zone of Mauritius, south-western Indian Ocean

Some 44% of the world's population lives within 150 km of the coast and mass migration towards the coast will continue in the decades ahead. Degrading and exhaustive uses of land, water and other coastal resources and disruption of environmental processes through degradation of environmental quality and loss of critical terrestrial and aquatic habitats can lead to serious deleterious impacts on the health and productivity of coastal ecosystems. Following the Arusha Resolution (1993), the Seychelles Statement (1996) and the Colombo CZM Workshop (1999), the need for integrated coastal zone management has become critical because of the limited land resources and unproportional domination of coastal areas in the wider Caribbean and Indian Ocean/ Pacific island states. The coastal zone of Mauritius (1,850 km², 20°S, 58°E, south-western Indian Ocean, 1.12 million inhabitants) was redefined in 1997 in the Environmental Protection Act of 1991 [Part VII (Act 34)] to include all islets within the Exclusive Economic Zone (EEZ; 1.7 million km²). During the 1980s, the Mauritian economy underwent major structural changes successfully, with a rapid phase of industrialization diversifying into two major activities, textiles and tourism. Existing reports and data in a common framework have to be synthesized and organized to fill existing gaps in knowledge with data collection and scientific inquiries, to identify social and economic drivers and to relate socioeconomic change to demands for environmental resources (land use, water resources, marine systems) and environmental impacts as proposed under the MERMAID (Mauritius Environmental Resource Management and Industrial Development) project. Nutrient flux and sediment trace metal contamination studies are currently underway to investigate different watersheds impacted by agricultural, urban and industrial activities in the north-west of the island. There is a pressing need to integrate the natural sciences with socioeconomic disciplines as proposed by the International Human Dimensions Program (IHDP) for an integrated management of coastal zones. Three integrated pilot projects in the Pacific-Indian Ocean and wider Caribbean as identified by Land Ocean Interaction in the Coastal Zone (LOICZ) in the future, including current status and changes in material fluxes from drainage basins, transboundary impacts from the ocean and atmospheric inputs, could elucidate the land–sea interactions and human dimensions of change on small islands. The sustainability of marine resources and the conservation of biological diversity will depend on a critical understanding of linkages between human activities and ecological responses and upon a citizenry that assumes ownership of these regions. Case studies would also help in investigating how humans affect transport pathways and biogeochemical cycles in small island states. Electronic Publication     

基于最小累积阻力模型的农村居民点用地生态适宜性评价——以都江堰市为例

农村居民点用地是乡村聚落景观的重要组成部分，其新建或重建过程从空间上来看是其与内部和周围环境之间相互竞争控制与覆盖的过程。在我国城市化加速推进的背景下，农村居民点用地却不降反升，其空间布局与扩张对自然生态环境的影响及反馈还考虑不足。借鉴景观生态格局的相关理论与方法，运用最小累积阻力模型，以都江堰市为例进行农村居民点用地的生态适宜性评价与分析。结果表明：（1）近十年来，研究区各土地生态适宜性分区空间分布相对集中，生态较适宜与高度适宜区域有一定程度的收缩，而较不适宜与不适宜区域则扩张明显，“一减一增”的鲜明对比表明人类活动对当地景观生态格局的干扰在明显增强；（2）不同时间段农村居民点用地的生态适宜性变化存在明显差异，在生态不适宜区，农村居民点的数量与面积始终保持了较高的增长势头，而中等适宜及以上等级区域的农村居民点数量与面积则经历了先增加后减少的变化趋势；（3）农村居民点用地的生态适宜性处于不断变化之中，2005~2010年和2010~2015年，分别有559.39和781.11 hm2的农村居民点生态适宜性等级发生了变化。研究结果对于加强当地重要生态景观单元的保护，协调人与土地、人与自然之间的矛盾，提高农村土地资源的利用效率和制定村庄建设发展规划等具有一定的实践指导意义。     

An integrated approach for studying the land suitability for ecological corridors through spatial multicriteria evaluations

Nature conservation is a very important issue in the sustainability assessments and spatial planning context. Knowledge of the suitability of the land to behave as an ecological corridor thus provides very significant input to land-use planning. Nature conservation and land-use planning are by their nature spatial problems. A family of methods that are rapidly gaining traction for planning and policymaking, named spatial multicriteria evaluations (SMCE), which are based on geographic information systems (GIS) and multicriteria analysis (MCA) coupling, can be an effective support for this area. The present paper proposes the integration of the GIS with a specific MCA technique, named Analytic Network Process to assess the ecological value of the land in the Piedmont Region (northern Italy). The results are obtained in the form of maps to be used as decision variables in planning. The study concludes with some lessons learned during the development of the SMCE and highlights that the applied methodology is an effective tool for decision makers in spatial planning and strategic assessments.     

土地整治驱动下土地利用和景观格局变化研究——以上海市合庆镇为例

基于上海市合庆镇土地整治项目,通过土地利用指数、空间自相关性以及景观格局指数的分析:(1)土地整治带来的区域土地利用变化情况;(2)验证土地整治是否能起到土地集聚的作用;(3)使用景观格局指数分析土地利用空间配置关系。结果表明,整治后的项目区内建设用地明显减少,耕地数量明显增加,并且土地利用程度综合指数等土地利用指数同土地整治活动之间存在相关性。使用全局空间自相关分析方法能够很好地验证土地整治活动对土地产生的集聚效应,并且在5~10m的格网尺度下采用土地利用程度修正模型能很好地反映建设用地和耕地的局部集聚效应。此外,区域由以农业活动和非农业活动并存转向以农业活动为主,"斑块-廊道-基质"的景观结构变化显著。     

长江中游城市群城市土地利用效率空间溢出效应研究

城市群城市土地利用效率是城市群城市土地要素有效配置、合理利用以及城市经营管理水平的综合体现。在使用DEA方法得到2003～2015年长江中游城市群28个城市土地利用效率并且分析其变化趋势以及空间关联性的基础上，构建SDM模型对长江中游城市群的城市土地利用效率空间溢出效应进行分析。研究结果表明：（1）2003～2015年长江中游城市群城市土地利用效率总体呈波动变化趋势。长江中游城市群城市土地利用效率存在空间负相关关系，城市土地利用效率具有空间异质性；（2）通过构建SDM模型分析表明，外商直接投资额以及人均地区生产总值是长江中游城市群城市土地利用效率的主要驱动因素；（3）长江中游城市群城市土地利用效率的空间溢出效应较弱，在一定程度上反映了长江中游城市群城市之间的空间相互作用较弱，经济联系还不够紧密。因此，长江中游城市群需要进一步构建城市合作机制，提高城市土地利用系统的整体性和联动性，推进区域经济协同发展。     

基于DEA模型的西南地区耕地利用效率时空格局演变及影响因素分析

耕地作为粮食生产之基，是人类社会赖以生存和发展的根源，其利用效率的高低，深刻影响着人类文明的发展与进步。以西南地区重庆、四川、贵州、云南4省（市）2000年、2005年、2010年和2015年4个年度的相关数据为基础，利用DEA模型估算了耕地利用效率，并通过全局Moran’I、趋势面分析、G*i指数从全局和局部分析了耕地利用综合效率的时空变化特征，最后，借助GWR回归模型分析了影响耕地利用效率空间分异的主要因素。结果表明：（1）2000~2015年间，耕地利用效率高值区的城市数量在不断扩大。在空间分布上，耕地利用效率稳定高值区域主要集中分布在四川省内的达州-德阳-成都-甘孜一线。重庆市耕地利用效率逐年增加的趋势；四川省持续保持高利用效率，且变化幅度不大；而贵州有下降的趋势，云南省则保持低效率利用状态。（2）西南地区耕地利用效率主要为正向的空间自相关性，空间分布趋势呈现出从西向东递增，以及由南向北倒“U”型递增态势。耕地利用综合效率空间格局分异显著，具有相对高值（低值）耕地利用效率在空间上呈现较强的组团式集聚分布态势，冷热点空间极化现象较为明显，界线分明，层次清晰，且随着时间变化，冷热点区域在空间上的分布态势有由“组团式”向“条带式”分布转变的趋势。（3）西南地区耕地利用效率时空演变受农民人均纯收入的影响最大，其次为复种指数，耕地质量和灌溉指数的影响程度相当，人均GDP对耕地利用效率的影响在逐年增加，地形因素的影响逐年减弱。     

怒江云南北段的村域土地利用及驱动力分析

驱动力分析是土地利用研究的重要内容。选择怒江流域北段高黎贡山自然保护区周边4个自然村为研究对象，应用高分辨率SPOT 5遥感影像数据，结合实地逐块核实，对土地利用/覆被进行分类，并建立土地利用类型分类系统，用Fragstats 33分析得到村域土地利用格局和特征；同时，采用入户调查、半结构访谈和问卷调查等方法，获得的村域详细社会经济数据，建立土地利用与社会经济之间的关联，分析村域土地利用的驱动力。结果显示：村域土地利用主要受自然条件、受教育程度、生活习俗等因子的驱动，且经济收入主要依赖于粗放的土地利用。研究结果能为怒江云南北段的土地资源合理利用和村域经济发展提供数据支持；研究方法可作为局域尺度土地利用研究的参考     

Environmental characteristics and land-use pattern changes of the Old Huanghe River delta,eastern China,in the sixteenth to twentieth centuries

The interaction between human and land in estuarine–coastal areas has become a focus of the global change research. Since the sixteenth century, the Old Huanghe River delta has experienced rapid accretion, the formation of rich ecological resources and diverse land use pattern changes; such information, in combination with a large number of historical documents, provides a unique research area for revealing the processes for ecosystem–human changes. We use historical documents and adopt multidisciplinary methods, to identify the relationship between ecosystem changes and human activities, on the basis of spatial and temporal analysis, for in the Old Huanghe River delta region. The results indicate that, in the sixteenth to nineteenth centuries, the long-term monopolistic development pattern under the government leadership, which occupied large quantities of ecological resources, controlled the coastal salt industry and marsh land exploitation. However, along with the delta ecosystem change and population growth, the development pattern became gradually unsustainable, i.e., the salt industry migrated toward the north, while the farming activities migrated toward the south with enhanced intensity of marsh reclamation. The government monopoly collapsed in the late nineteenth century, which enlarged the independent development space for the local residents, which, to a large extent, improved the land-use efficiency and reduced the population pressure.     

Changes in the spatial patterns of human appropriation of net primary production (HANPP) in Europe 1990–2006

Understanding patterns, dynamics, and drivers of land use is crucial for improving our ability to cope with sustainability challenges. The human appropriation of net primary production (HANPP) framework provides a set of integrated socio-ecological indicators that quantify how land use alters energy flows in ecosystems via land conversions and biomass harvest. Thus, HANPP enables researchers to systematically and consistently assess the outcome of changes in land cover and land-use intensity across spatio-temporal scales. Yet, fine-scale HANPP assessments are so far missing, an information important to address site-specific ecological implications of land use. Here, we provide such an assessment for Europe at a 1-km scale for the years 1990, 2000, and 2006. The assessment was based on a consistent land-use/biomass flow dataset derived from statistical data, remote sensing maps, and a dynamic global vegetation model. We find that HANPP in Europe amounted to ~43 % of potential productivity, well above the global average of ~25 %, with little variation in the European average since 1990. HANPP was highest in Central Europe and lower in Northern and Southern Europe. At the regional level, distinct changes in land-use intensity were observed, most importantly the decline of cropland areas and yields following the breakdown of socialism in Eastern Europe and the subsequent recovery after 2000, or strong dynamics related to storm events that resulted in massive salvage loggings. In sum, however, these local dynamics cancelled each other out at the aggregate level. We conclude that this finding warrants further research into aspects of the scale-dependency of dynamics and stability of land use.     

Land poverty and emerging ruralities in Cambodia: insights from Kampot province

Rural change in Cambodia manifests itself in rapidly declining land availability for the smallholder sector, posing the question of how farmers may be able to deal with limited access to land. In this paper, we discuss with a case study village and household livelihood strategies of smallholders currently operating under land-constrained conditions. Based on an integrated assessment of a smallholder village in Kampot province, we illustrate in quantitative terms how land shortage is creating problems of surplus generation and liquidity issues in monetary and non-monetary flows. At the household level, livelihood diversification based on the involvement of productive resources other than land may play an increasing role, particularly in the future, when levels of land shortage may increase. At the village level, smallholder may respond through institutional innovation, in particular through the establishment of a community banking system and a paddy rice bank to provide money and rice credits to overcome transitory shortages and to cover investment costs for additional productive resources. Thus, in this case, we observe the emergence of new patterns of livelihood in rural areas, based on the integration of non-land-based economic activities and new institutional settings.     

Accounting for carbon stocks in models of land-use change: an application to Southern Yucatan

To assess the impact of land-use change on carbon stocks, we apply a new methodology, linking ecological and economic modeling, to southern Yucatan, Mexico. A spatial econometric multinomial logit model of ten land-cover classes is estimated (four primary forest categories, three secondary growth categories, an invasive species, and two agricultural land-cover categories), using satellite data on land cover, linked with census socioeconomic data and other biophysical spatial data from 2000. The analysis is novel in that it is the first attempt to link detailed satellite data on land use, with on-the-ground estimates of carbon stocks in a spatial econometric model of land use. The estimated multinomial logit model is then used with two scenarios of future economic growth (“low growth” and “high growth” changes in population, agricultural land use, market access, and education levels) in the region to predict land-cover changes resulting from the economic growth. The per hectare carbon (C) stocks in each land-cover class are derived from previously published estimates of biomass from field sampling across the study region. We consider aboveground-only, aboveground plus soil, transient and non-transient pools of carbon. These estimates are scaled up to the total area in each class according to the predictions of the model baseline and the two development scenarios. Subsequently, the changes in carbon stocks resulting from the predicted land-cover changes are calculated. Under the low growth scenario, carbon stocks declined by 5%; under the high growth scenario, losses were 12%. Including soil C, the proportional losses were lower, but the absolute amount lost was more than double (to 6 Tg C under the low and almost 15 Tg C under the high-growth scenario). This methodology could be further developed for applications in global change policy, such as payments for environmental services (PES) or reduction in emissions from deforestation and degradation (REDD).     

长江经济带城市土地利用效率格局演变及驱动机制研究

以长江经济带为研究区域,综合运用DEA模型、ESDA统计指数及Tobit线性回归模型等方法对长江经济带城市土地利用效率格局演变及驱动机制进行了初步地分析。结果表明:(1)2000~2012年长江经济带城市土地利用效率总体上呈上升趋势,存在显著区域差异,且技术效率高于综合效率和规模效率;(2)全局上城市土地利用效率呈现出正的空间自相关,效率高(低)的城市相互空间邻接;局部上城市土地利用效率的L-L类型主要集中在川西高原区,空间分布形态较平稳,而效率H-H类型主要分布在上海及苏南地区,并逐渐向绍杭、皖江地区演化,从"一字形"转向"Z字形"分布;(3)城镇化、经济发展、产业结构、科技水平及土地市场化是研究期长江经济带城市土地利用效率格局时空演变主要驱动力。