石河子市土地利用变化及主要地类驱动力研究

通过分析石河子市土地利用的变化,探讨了其土地利用总体变化和各主要地类的驱动机制。社会经济因素是该区域土地利用总体变化的主导性驱动因素。而人口和经济增长是石河子市土地利用总体变化的首要社会经济类驱动因子,其次农业是技术发展。农业结构调整、产业结构转移是耕地利用变化的主导性驱动因素,而城镇化和工业化发展则是引起建设用地变化的主导性驱动因素。     

Comparing Regional Biodiversity Benefits of Investment Strategies for Land‐Use Change

The need for public investment to address loss of biodiversity in agricultural landscapes is well recognised, yet there is little analysis of the likely benefits of land‐use change for regional biodiversity or the cost effectiveness of different investment options. We estimated benefits for biodiversity and cost effectiveness of different investment scenarios over 50 years for a farming area in south‐eastern Australia. Declines in biodiversity were predicted under status quo land use. Implementing actions in the investment scenarios improved biodiversity status only slightly, compared with status quo land use. Future biodiversity status differed little between biodiversity‐focused investment and salinity‐focused investment. Biodiversity status equalled or exceeded current status only for investment scenarios with much more extensive revegetation than in catchment targets. Cost effectiveness of biodiversity improvement varied greatly between investment strategies. Biodiversity improvement was more cost effective when investment to meet catchment targets was focused on revegetation for salinity management rather than on high conservation value areas, because of lower opportunity costs for salinity management. With enhanced investment, the cost effectiveness of biodiversity improvement was greater when actions were in high conservation areas. Although improvements in biodiversity were small under the changed farming system scenarios, their cost effectiveness was higher than the other investment scenarios. Regional scale improvements in biodiversity in farming areas will require increased stewardship payments or other economic incentives for landholders.     

Determinants of Rent from Agricultural Land Around Metropolitan Areas

Three urban determinants of rent from agricultural land around metropolitan areas are incorporated into one rent model. The urban market factor and the transport cost as expressed in the Thünian crop rent equation are discussed in terms of their relevance to metropolitan areas. Then the effects on rent of the urban land market and urban economic change and their relationships with the market factor are examined. Graphic and mathematical expressions of a multideterminant model based on the combined crop system are developed, followed by a discussion on several variations of the model.     

NEW DIRECTIONS FOR URBAN ECONOMIC MODELS OF LAND USE CHANGE: INCORPORATING SPATIAL DYNAMICS AND HETEROGENEITY*

ABSTRACT We review the usefulness of urban spatial economic models of land use change for the study and policy analysis of spatial land use–environment interactions. We find that meaningful progress has been made in econometric and monocentric models extended to account for multiple sources of spatial heterogeneity and in the development of general equilibrium models with spatial dynamics. Despite these advances, more work is needed in developing models with greater realism. Most agent‐based computational models of urban land use change currently lack economic fundamentals, but provide a flexible means of linking microlevel behavior and interactions with macrolevel land use dynamics. In combination with empirical methods to identify parameters, this framework provides a promising approach to modeling spatial land use dynamics and policy effects.     

新型城镇化背景下文化古镇旅游商业化用地空间格局演化——以同里为例

人地关系一直是旅游地理学研究的核心科学问题,本文探讨了同里旅游商业化用地格局演化的特征,揭示了其格局演化的驱动机制。结果表明:1同里旅游商业化先后经历了三个阶段,用地规模呈现逐步增加的态势,并呈现从核心向四周扩散的特征,用地格局整体紧凑度不高;2旅游用地空间扩展以SWW、SE、SSE、E为主导方向,拓展强度呈增大态势;3针对同里旅游商业化用地格局演变的驱动机制剖析表明,经济利益、农户行为转变、市场发展需求、级差地租及政府行为的综合驱动导致了其用地格局的空间演化。     

清代黔东南地区农林经济开发及其生态-生产结构分析

本文以清代黔东南地区农林产业在经济开发下的土地利用与覆被变化为论述对象 ,对影响农林用地变化的社会经济和生态结构因素作深入分析 ,认为该地区局地范围内历史上形成的农林并重经济发展模式和土地利用方式不仅利于生态环境的维护 ,而且极大促进了地区经济的不断发展 ,其在土地利用过程中形成的生态 -生产结构相对优化 ,有着进一步良性发展的潜力。但是由于影响农林生产发展的社会经济制度在深层次里存在着不合理性 ,使农林经济开发的良性运作缺乏必要保证 ,进而出现地方环境与社会恶性发展的危机。     

Some Prerequisites for Calculations of an Economic Land Evaluation

An indicator relating crop yields to labor and capital inputs is suggested as a measure of the relative natural fertility of land, and thus as a criterion for economic land evaluation. For mathematical convenience, crops are reduced to a standard product, and the cost of producing a unit of standard product is then taken as the basic criterion of natural soil fertility.     

An Evolutionary New Economic Geography Model

In this paper we present a general new economic geography model with multiple industries and regions, full labor and capital mobility, land use in production and consumption, and a dynamic adjustment process in which consumers maximize utility and firms respond to nonzero profits. All industries use intermediate inputs as well as land, labor, and capital. Systems of cities form endogenously within this framework, including asymmetrical urban hierarchies and cities of different sizes and industry compositions. Each urban area has a bid-rent gradient and zones with land uses and densities as in the von Thünen model. The equilibrium depends not only on initial conditions but also on speeds of adjustment. The model is a prototype for empirical implementation, as illustrated with a simulation of the effects of transportation cost reductions.     

An Economic Appraisal of Lands in Connection with the Organization of Lands on State Farms of the Virgin Lands

The author suggests that economic land appraisals, designed to improve the utilization of state-farm lands, be combined with a program of land organization on state farms, assigning the most effective land uses to individual farm plots on the basis of physical factors, soil fertility, and achievement of maximum yields at the lowest cost in labor and capital. Rational land use under the new schemes in compared with the past stereotyped approach on state farms of the virgin lands.     

江苏省城镇化发展协调度评价与地区差异分析

将城镇化分解成人口城镇化、经济城镇化、土地城镇化和社会城镇化4部分,且认为这4部分应处在协调耦合状态,用TOPSIS法对江苏省城镇化发展协调度进行评价,之后对评价结果的地区差异进行分析,以对城镇发展政策制定提供依据。研究表明:常州和扬州在优质协调区;南京、镇江、苏州和无锡在良好协调区,且土地城镇化相对滞后,说明城镇土地高效集约利用;徐州、淮安和南通在基本协调区,徐州与淮安土地城镇化过快,社会城镇化滞后,表明城镇土地粗放低效利用,同时忽视公共服务产品供给,南通土地城镇化滞后,表明城镇扩张缓慢,城镇化的土地代价水平较低;泰州和盐城在轻度失调区,盐城经济城镇化滞后,泰州土地城镇化滞后,土地集约利用强度大,城镇发展选择的是一种精明增长路径;连云港和宿迁在中度失调区,土地城镇化明显快于其它城镇化,城镇发展土地代价水平高,具有相当过渡性损失。     

Planning Innovations in Land Management and Governance in Fragmented Rural Areas: Two Examples from Galicia (Spain)

Land fragmentation can be an important drawback for the development of rural areas. Due to the small size of the units, land management and planning are difficult from both the private and the public point of view. In some regions of Europe, land fragmentation can lead to the collapse of land-based activities such as agriculture and forestry. This process triggers land abandonment, which causes social, economic and environmental problems. Traditional interventions such as land consolidation have not worked because of the scale of land fragmentation, which leads to huge transaction costs. New planning instruments and governance structures for land management that balance the relations between property rights, management and labour force can be developed, in order to avoid the problems of land fragmentation. In this paper, we present two innovative examples of land management and governance structures for dealing with land fragmentation in rural areas of Galicia northwestern Spain. They were able to combine the use of individual and common property rights to make land use more sustainable, instead of trying to change land ownership. The new governance structures helped to increase efficiency and sustainability of the land use by, for example, increasing labour productivity, clarifying property rights and diminishing land abandonment.     

西安市城市化进程中的土地利用政策研究

本文选用城市地域扩展倍数、年平均扩展速度、土地利用效益及其变化幅度等指标,从土地利用的经济效益角度分析了西安市1992-2002年10年间城市化进程中的城市地域扩展和土地利用效益问题;以非农业人口增长、经济发展和城市建设为影响因素,预测了城市用地的未来需求量。     

转型时期的中国大都市发展

改革开放以来,中国大都市建设经历了一个快速发展的时期。由于历史、经济及文化等多方面因素,中国大都市的发展呈现出特殊的时空特征,同时也带来了诸多问题。本文对转型时期中国大都市的发展特征、影响其发展的因素和发展过程中值得注意的问题进行了系统的分析和研究,并提出了相应的对策。     

Applying a Systematic Review to Land Use Land Cover Change in Northern Upland Vietnam: The Missing Case of the Borderlands

As Vietnam embraces the market economy, and a number of state policies promote reforestation and rural market integration, land use and land cover (LULC) changes are occurring in the country's northern uplands in increasingly complex and fragmented ways. Yet understandings of the degree and consequences of LULC changes in this diverse agro‐ecological region are incomplete. We conduct a systematic literature review of research reported in academic articles tracing and analysing LULC change in Vietnam's northern regions. We find that these studies have tended to take place away from the most mountainous, northern borderlands. The studies nonetheless highlight a diversity of land use land cover changes caused by numerous causes, making the distinction of overall trends difficult. To complement and extend this body of research, we introduce recent LULC change research we have completed in the mountainous border districts of Lào Cai province, on the Sino‐Vietnamese border. The heterogeneity of causes of LULC change in both the review articles and our case study points to the importance of adapting land use policies to local agro‐ecological and socio‐economic conditions and ethnic diversity, taking into account state–farmer relations, household livelihood decision‐making, and policy implementation at the commune and district levels.     

Land Use in Western Australia: the Need for Change

The need for changes in land use has become more evident from analysis of continued declining trends in land and water resource quality. Land use change in this sense refers to changing existing resource management techniques towards ecologically sustainable development. For example, planting cleared areas towards natural water balance, creating better microclimates and improving soil stability. This paper examines existing land and water legislation and the role and scope of government and the community in achieving changes to traditional resource management including reference to economic and biophysical aspects.     

Linking Agricultural Policies with Decision-Making: A Spatial Approach

Abstract

The loss of agricultural land and its implications have been of great concern in the last decade. By undertaking a spatial analysis of the appropriation of agricultural land for urban use with an overlay of population and urban data, a focus on the consequences of certain regulations on the dynamics of land-use change is explored. This is achieved by integration of data inventories of agricultural land use for Portugal, and linking this information with CORINE Land Cover data as to assess change in the Algarve. An integrated assessment of agricultural land loss follows, undermined by the consequences of urban sprawl. In this sense, this paper expands on the currently existing decrees which provide support to sustainable development in the region while providing a qualitative assessment of future roles based on ethical values and economic efficiency and offering a feasible framework for policy-makers regarding the trends of urban/agricultural dichotomy in a planning and decision-making context.     

Institutional Change in Land Planning: Two Cases from Galicia

Why do societies implement land policies? A number of arguments have been put forward in the literature, ranging from economic conceptions based on market failure and the problem of negative externalities to a more social conception based on welfare distribution and collaborative planning. However, neither all societies with similar market failures or negative externalities develop and implement land planning nor implemented land planning always results from collaborative planning. The arguments found in the literature seem not to fit the reality and, in most cases, cannot explain why societies create or undertake innovations in land planning. Within the framework of institutional change theory and based on the analysis of the emergence of two land planning devices—a land use law and a land banking law—in Galicia, Northwest Spain, this paper argues that land planning is developed to tackle negative outcomes of former institutional setups. However, the negativity of such outcomes is measured not in terms of economic performance, but in terms of social acceptance. The search for a workable definition of property within the Galician society seems to be the main driver of institutional change in land use planning analysed in this paper.     

中国城镇土地非均衡扩张路径与治理策略研究

用经济学中的资源配置理论解释城镇土地非均衡扩张,根据城镇土地扩张的机理不同,把城镇土地分为工业用地、居住用地、基础设施用地,并分别考察了其非均衡扩张路径,在此基础上,从"制度环境-政绩目标-政策工具"三方面提出了非均衡扩张的治理策略。结果认为:招商引资过程中竞相以低地价供地导致了工业用地非均衡扩张;对土地财政的过分追逐导致了居住用地非均衡扩张;地方政府为攫取政治晋升资本,大兴城市基础设施建设导致了基础设施用地非均衡扩张;为系统控制城镇土地非均衡扩张,应在"制度环境-政绩目标-政策工具"三个层次上制定相关治理策略。     

珠江三角洲建设用地扩展与工业化的耦合关系研究

本文利用珠江三角洲1988、1998、2006年三个时相的建设用地解译数据,定量分析建设用地扩展与工业化之间的耦合关系。从珠江三角洲的经验来看,工业化进程越快,建设用地扩展越剧烈;工业化水平与建设用地空间形态变化之间呈现典型的"U"型曲线关系;建设用地的利用效率与它所承载的产业活动的经济效率存在紧密关系,建设用地效率的提高过程与产业结构高级化的演进过程是高度一致的。由此可见,工业化与土地利用两者之间互为因果,相互推动,共同构成"土地-经济"互动系统。必须将用地结构优化与产业升级以及环境再造相结合,才能真正实现土地资源的优化配置。     

基于模糊逻辑的城市土地集约化利用评价——以江苏省地级城市为例

基于2000年的统计资料,选择地均GDP、地均财政收入等九个指标,应用模糊逻辑(Fuzzy Logic)方法从土地经济效益和土地使用效率两个方面对江苏省各地市的土地集约化利用程度进行了评价。结果表明江苏省13个地市的土地集约化利用程度从高到低可以分为五个等级。评价结果基本上反映了各城市人地关系的紧张程度和城市土地的经济产出效率。