江苏省城市地价影响因素分析与空间结构研究

本文以江苏省68个地级与县级市的城市地价为样本,运用因子分析方法对影响地价的诸多变量进行分析,发现城市集聚规模与城市经济发展水平是影响地价的重要因素。对江苏省城市地价进行地统计分析,发现江苏省城市地价明显表现出区域空间分布规律,表现为江苏省城市地价存在南北、东西两个方向上的梯度变化,运用线性回归方法求得两个方向上的梯度值;江苏省城市地价整体有一定正相关性,但局域自相关性表现不强;地价以南京、苏州为高地价点,省内地价存在沿沪宁铁路与长江的高地价条带区域。结合因子分析结果对以上规律做出解释。     

基于夜间灯光数据的中国土地城镇化水平时空动态

基于长时间序列夜间灯光遥感数据,本研究从国家、八大经济区、省、地等四个尺度综合分析了中国1992-2010年土地城镇化水平时空动态特征。结果表明,在1992-2010年间:中国土地城镇化水平增长迅速,年均增长率为8.34%,明显高于同时期人口城镇化水平增长速度;土地城镇化水平区域差异十分显著,东部沿海经济区在八大经济区中土地城镇化水平最高且增长速度最快,香港、澳门特别行政区土地城镇化水平远高于其它省区;土地城镇化的热点区域主要集中分布于长三角、山东半岛、海峡西岸等11个城市群地区。     

我国人口城镇化与土地城镇化协调发展研究

中国正处于城镇化进程加速发展时期,城市规模不断扩大,城市数目不断增加,单以非农人口比重这一标准衡量城镇化水平并不能全面反映城镇化的内涵,因此,如何理性评价当前的城镇化状态值得思考。城镇化包含人口向城镇的转型、集中、强化和分异的过程,同样也包括城镇景观的地域推进过程。在归纳总结城镇化的深层内涵的基础上,选择人口城镇化和土地城镇化为切入点,从两个不同的角度衡量我国的城镇化水平,并研究二者协调发展状态。通过时间序列演算,发现人口城镇化指数与土地城镇化指数均呈现持续上升的趋势,并且从2002年开始土地城镇化指数增长速度明显加快,并在2007年土地城镇化指数超过人口城镇化指数;空间分析的结果显示,我国人口城镇化与土地城镇化协调发展空间格局具有水平总体偏低、阶段差距大、区域分异明显等特点。     

LAND AND URBAN ECONOMIC GROWTH IN CHINA*

ABSTRACT Land to accommodate urban development in China is provided through requisitions by government officials, suggesting that land availability may be a constraint on urban economic growth. An econometric model of urban GDP growth suggests that land has constrained economic growth in coastal areas but not elsewhere. Elasticities calculated from the estimated coefficients indicate that land availability has a larger proportional impact on economic growth than domestic and foreign investment, labor supply, and government spending. The estimated parameters provide evidence about arbitrage opportunities created by discrepancies between urban land value and compensation for requisitioned rural land, suggesting rural unrest associated with conversion of farmland to urban uses may have some economic roots.     

土地利用的八维空间解析

土地的本质是一定范围的空间,土地利用是在一定范围的空间内安排土地用途和土地功能的活动集合。解构土地利用空间维度,构建土地利用从低维到高维转变的土地利用思想,有利于拓展现代土地利用创新理念。基于主题分析法的研究表明：①土地利用存在八个维度的拓展方向,分别是聚点发展、轴线开发、平面发展、立体发展、分时利用、混合用途、功能叠加和空间共享;②土地利用维度可归纳为空间、时间和功能三个层面,并且各维度之间存在较强的关联性;③依据土地利用维度从低到高,以聚点发展为初始维,构建土地利用的八维空间理念。土地利用八维空间理念的明晰,有利于增益人们对土地用途和土地功能空间配置和组合的认知,从而有利于现代土地利用的创新实践。     

城镇地价水平的相关分析——以石家庄市为例

城镇土地存在着级差收益,土地价格受多种因素的影响。本文以地租地价理论为依据,分析了石家庄市辖县地价水平与城镇区位、社会经济发展水平的相关关系,初步探讨了城镇地价水平的一般分布规律。     

Rethinking Livelihood Impacts of Biofuel Land Deals in Ghana

During the last decade, debates about the livelihood impacts of large‐scale biofuel projects have focused mainly on either employment creation or on land dispossession. The mediating role of social institutions and communal reciprocity in resource‐access manoeuvring processes have rarely been considered. This comparative study of two biofuel projects in Ghana shows that households affected by land dispossession quickly obtained new productive land areas by switching to fallow farmland or through long‐term reciprocal social networks. The livelihoods of households with members employed by the projects improved in terms of increased income and access to cultivation on project land. Not everyone, however, had the resources and ability to use social networks for job‐seeking and land access negotiation, particularly those considered to be migrants. The authors argue that a context‐specific focus on, and processual examination of, the abilities of individuals and groups to utilize social institutions to sustain their livelihoods during a project's lifetime, are crucial in analysing the impacts of biofuels land deals. Such an approach explores the various forms and uses of livelihood capitals, and shows how new configurations of social and economic relations emerging from land commercialization can reinforce local inequalities.     

农村居民点用地整治潜力测算研究——以广东省五华县为例

以广东省五华县为例,以行政村为单元,在政策指标测算法的基础上,从自然环境状况、经济保障能力和社会因素等3方面构建理论潜力修正模型,将理论潜力修正为可实现潜力,并根据土地适宜性评价估算增加耕地潜力,以期为科学编制农村土地整治规划提供依据。研究表明,五华县农村居民点用地布局分散、规模小、空间差异显著,呈现出沿河谷、沿交通线路分布的典型特征。到2020年,农村居民点整治理论潜力为5683.91 hm²,北部村庄的整治潜力较大;可实现潜力修正系数为0.54,与理论潜力相差较大,各行政村之间差异明显;新增耕地潜力系数介于0.32-0.94,预计新增耕地1943.41 hm²,琴江、五华河沿线村庄的新增耕地潜力较大。建议实施差别化的农村居民点整治对策,推进五华县农村土地整治。     

长株潭地区聚落空间演化及其与耕地的空间关系研究

对2000年、2005年及2010年的遥感影像图进行解译,得到3个时期的土地利用分类图,运用景观指数法和空间分析法等方法,对长株潭地区聚落的空间演化特征及动因进行分析,并分析了聚落与耕地之间的空间关系。结果表明:长株潭地区聚落的面积、数量规模和分布密度加速扩大,集中分布在高程200 m以下;聚落空间演化的自然动因是低地平原指向,而社会动因是人口规模的变化;提出耕地与聚落面积比指数(K)概念,根据K值的大小可以将耕地与聚落的空间组合关系分为3类地区:耕地资源紧缺区、耕地资源平衡区、耕地资源盈余区;聚落与耕地的空间转移关系可以分为两大类:持续稳定型和动态变化型;长沙市周边耕地转为聚落的趋势十分明显;聚落空间扩张对耕地的影响存在一个空间临界点,城市化速度越快,临界点的位置距离聚落越远。     

基于GWR模型的合肥居住地价影响因素研究

以合肥市主城区为例,基于2010-2014年居住用地的出让数据,运用地统计法、GWR模型等方法,对合肥市居住地价的空间异质性及其影响因素进行研究。研究表明：①合肥市居住地价的空间分布呈现出显著的多中心的空间结构,地价的峰值区分别以老城区、政务区天鹅湖及滨湖新区塘西河公园为中心呈现圈层式分布;②不同的地价影响因素表现出不同的空间分布特征,其中容积率对居住地价的贡献度空间差异最大,其次是宗地面积,主干路次之,交通站点对居住地价的贡献度最小;③厘清各影响因素对地价的作用机制,建立动态的数字地价模型,不仅能促进土地资源的集约利用,重塑城市的空间结构,而且能为城市整体价值的发挥提供重要的理论支撑。     

MEGA‐IRRIGATION AND NEOLIBERALISM IN POSTCOLONIAL STATES: EVOLUTION AND CRISIS IN THE GHARB PLAIN,MOROCCO

This article explores the development, evolution and impacts of large‐scale irrigation schemes in the formation of the postcolonial state of Morocco and in more recent neoliberal decades. In particular, the article focuses on the Gharb Plain in the Sebou River basin, which was targeted by huge investments to become the core region for national development. In this area, three stages of development – colonial, early independent, and the aggressive politique des grandes barrages post‐1970 – have created two clearly different and successive landscapes. The traditional landscape has been overlain, and largely obliterated, by colonial and postcolonial governmental landscapes, reflected through different spatial, economic, cultural, and political patterns over time. In the present, a fourth stage of neoliberal development is occurring in the landscape, in which diffused poverty and ecosystem collapse coincide with greater concentrated wealth and the building of technological infrastructures. The article aims to complement critical studies on neoliberal environments, by focusing in particular on the manipulation, dispossession and commodification of water and land resources in irrigated agriculture in Morocco. These emerging rationalities are closely related to the changing policies of the contemporary Moroccan state.     

大都市边缘住宅开发区土地价值提升动态评估——以广州市南村住宅开发区为例

大都市边缘区住宅开发是大多数开发商的可能选择。此类开发区的土地利用性质和利用强度、地域空间结构及地理景观等方面都与城市中心区有着根本的区别,其价值处于高度动态发展中,地价迅速提升成为必然。本文首先剖析大都市边缘住宅区土地价值提升的可能性,并探讨了该类型的小区土地价值提升的评价思路、方法、对象及其参评指标体系确定等问题,最后将评估方法应用于广州市南村开发区进行了实例研究。     

都市区与非都市区的城镇用地增长特征:以长三角地区为例

作为人口与经济活动高度集聚的地区,都市区地域的发展和空间结构特征引起了大量关注。本文以长三角两省一市地区221个区县单元为研究对象,在划分都市空间单元类型的基础上,考察都市区与非都市区以及各类型都市区之间城镇工矿用地增长的差异,并据此探讨在我国特殊经济社会环境下都市区地域的空间发展规律。研究发现,不同地域单元在中心-外围关系上存在差异,都市区进入了均衡扩散阶段而非都市区以中心城市极化为主,孤立都市区的扩散效应较弱,非都市区地域的县域单元受到临近都市区的影响而呈现出不同的城镇工矿用地扩展特征。都市连绵区内不同亚区域存在发展阶段与空间关系上的差异,加剧了都市连绵区空间结构的复杂性。来自中心城市、外资拉动、县域经济内生的多重力量推动都市地域呈现独特的空间规律。     

2001-2008年无锡市土地利用景观格局变化分析

无锡市作为位于长江三角洲地区的核心地域,2000年实施新城市化战略以来城市化水平大幅上升,但对这一时期无锡市土地利用景观变化的研究相对较少。本文从景观生态学的角度研究无锡市2001-2008年间的土地利用景观变化,发现无锡市的土地利用变化速率较快,且递减最快的为耕地,而递增最快的为建设用地及园地;无锡市2000年之前景观格局基本构型以大斑块为主,景观格局较为单一,但2001-2008年该地区剧烈的人类活动使得这些大斑块发生破碎化,导致不同景观类型的斑块数量不断增加,各类用地所占比例的差异逐步减少。总体上看,无锡市的景观多样性在增加,景观优势度在减少。     

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。     

Carbon Sequestration in Community Forests: Trade‐offs,Multiple Outcomes and Institutional Diversity in the Bolivian Amazon

Carbon sequestration in community forests presents a major challenge for the Reducing Emissions from Deforestation and Forest Degradation (REDD+) programme. This article uses a comparative analysis of the agricultural and forestry practices of indigenous peoples and settlers in the Bolivian Amazon to show how community‐level institutions regulate the trade‐offs between community livelihoods, forest species diversity, and carbon sequestration. The authors argue that REDD+ implementation in such areas runs the risk of: 1) reinforcing economic inequalities based on previous and potential land use impacts on ecosystems (baseline), depending on the socio‐cultural groups targeted; 2) increasing pressure on land used for food production, possibly reducing food security and redirecting labour towards scarce off‐farm income opportunities; 3) increasing dependence on external funding and carbon market fluctuations instead of local production strategies; and 4) further incentivising the privatization and commodification of land to avoid transaction costs associated with collective property rights. The article also advises against taking a strictly economic, market‐based approach to carbon sequestration, arguing that such an approach could endanger fragile socio‐ecological systems. REDD+ schemes should directly support existing efforts towards forest sustainability rather than simply compensating local land users for avoiding deforestation and forest degradation.     

Women's and Men's Work: The Production and Marketing of Fresh Food and Export Crops in Papua New Guinea

Fresh food markets have been a fixture of the social and economic landscape of urban and rural PNG since colonial times. They were often the first points of engagement with the market economy, especially for women, who as small‐scale producers, sold surplus produce from their food gardens located on communally‐owned land. Although local food markets have remained an important livelihood for women, the later adoption and expansion of perennial export cash crops like coffee and cocoa overshadowed food production for local markets as men dominated export crop production on land alienated from communal ownership for decades or permanently. New forms of social relations of production and more exclusive forms of land tenure emerged to accommodate export crop production that were very different from those governing the production and marketing of fresh food. Market values and a trend towards individualisation of production with less capacity to mobilise labour through reciprocal labour exchange networks have characterised export crop production. With the income benefits captured largely by men, women began redirecting their labour to fresh food production where they were able to exercise more control of production and income while still mobilising labour through indigenous labour exchange arrangements. Attempts by men to appropriate the income of women and sons’ labour in export cropping were greater during flush periods when income levels were high, and they were less likely to attempt to appropriate this income in low crop periods when incomes were lower. However, with the recent emergence of female entrepreneurers earning relatively large sums of money in large‐scale, profit‐driven vegetable production, the moral frameworks governing food production are coming to resemble those governing export crops, and making labour more difficult to mobilise. Despite women being key players in these changes, we argue there is an emerging risk that men will attempt to assert control over this income or move into vegetable production themselves and possibly marginalise women in the process.     

广州城市产业用地供应规模和结构时空特征及机制

根据2007—2020年广州土地供应结果,利用数理统计和空间分析等方法探讨了城市产业供地规模和结构时空特征及机制。研究发现：(1)供地规模和存量用地占比上升,供地向重点开发区集聚。(2)第二产业供地比重下降,制造业下降明显。(3)第三产业供地比重上升,流通和社会公共需求服务部门上升明显。(4)46种行业供地比重变化可分持续下降、持续上升、先降后升、先升后降、波动类型。(5)各圈层供地结构存在差异,但均以房地产为主。(6)供地组合可分5大类,10个亚类,以生产和生活服务部门为主。(7)供地受政策工具、土地市场、集聚扩散、产业互动、产业生命周期和特殊城市本底等方面影响。     

Political Structure and the Limits of Recognition and Representation in Ghana

Recent studies of democratization in sub‐Saharan Africa often focus on government recognition granted to traditional authorities. This article examines northern Ghana, where chiefs of a minority group are denied formal recognition but pressure state officials to recognize their status as land custodians. This leads to contests and debates between state officials, chiefs and communities over whether the customary institutions have in fact been recognized for what they claim to be. The article uses episodes of contention to nuance conceptualizations of recognition as a specific relationship between actors and institutions, and as a question of government policy or choice. Recognition and non‐recognition are contested in a grey zone of social constructions. Non‐recognition persists as a continuation of colonial policy, state law path trajectory, and state officials’ endeavours to stay out of ‘traditional’ affairs. However, customary rights to land are validated by the new local government institution, and chiefs use newfound positions to expand their jurisdictions. Stakeholders affirm unequal social categories underpinning different understandings of recognition. The article examines contentions that hinge on interpretations of who is recognizing and not recognizing whom, and actors’ efforts to reshape and reproduce political structures.     

基于地域性认同的土地利用规划模式反思

传统封闭式"自上而下"土地利用规划模式在包容社会主体的土地利用需求矛盾、协调土地利用对人地关系的复杂影响、统筹区域多元增长目标等方面存在不足。地域性认同理论及相关研究成果,可为创新国内土地利用规划模式提供借鉴。本文以社会建构论为切入点,在剖析封闭式、公开式等两种主要土地利用规划模式的基础上,将以社会建构为核心的地域性认同理论融入我国现有土地利用规划体系,构建基于地域性认同的土地利用规划模式,以提升土地利用规划的过程和结果质量。