国家精准扶贫政策对贫困农户脱贫增收的效果评价——基于双重差分模型的检验

基于重庆市武陵山区和秦巴山区贫困农户与非贫困农户的调研数据，运用双重差分模型检验精准扶贫政策对贫困农户收入增长的影响。结果表明，贫困农户在精准扶贫政策的支持下，家庭人均纯收入增长显著，与非贫困农户相比差距进一步缩小；家庭主要收入来源，由单一渠道向多渠道转变，人均种植业收入和人均养殖业收入增长最明显，二者贡献率合计达到61.87%；农户的年龄、家庭人口数量、老人小孩数量、耕地面积、耕作半径、是否发展特色产业等因素对贫困农户家庭人均纯收入影响显著。因此，发展特色产业，解决贫困农户的教育、医疗、住房和土地撂荒问题是保障贫困农户脱贫后稳定增收的关键。     

晋中平原地区农村聚落扩展分析

在实地考察的基础上，章从规模、速度、形态和类型等方面分析了晋中平原地区农村聚落扩展的特点，并深入探讨了影响农村聚落扩展的因素，认为聚落扩展主要是人口增长和家庭规模变化、社会经济发展与收入增加、交通条件改善、农村地区工业化及其他因素共同作用的结果。最后指出了由于聚落扩展而带来的许多难以解决的问题。     

Some Trends in Changes of the Structure and Location of United States Agriculture

Using Lenin's 50-year-old study of United States agriculture as a starting point, the author analyzes structural changes from the Marxist point of view, dealing with such elements as increases in average farm size, mechanization, hired labor, decreases of cultivated land, acreage limitations, and changes in crop specialization.     

交通网络与城市化水平的线性相关模型

从城市化水平(z)与人均产出(x)的周模型(z=alnx-b)和交通网络连接度(β=c/ν)与人均收入(x)的对数关系模型(β=klnx+φ)出发,导出交通网络与城市化水平的线性相关模型β=Az+ζ,这暗示城市化过程与交通网络的发展互为因果。借助中国城市化水平与铁路里程的时间序列和空间系列数据对理论推导结果进行了实证分析,从而证明:区域城市体系的建设与交通网络的发展应该同步进行。     

LOCAL PUBLIC SERVICE PROVISION AND SPATIAL INEQUALITY IN CHINESE CITIES: THE ROLE OF RESIDENTIAL INCOME SORTING AND LAND‐USE CONDITIONS

Spatial inequality refers to unequal access to local public services between high‐ and low‐income households in relation to their residential locations. We examine two hypotheses regarding the role of income sorting and land‐use conditions in shaping spatial inequality in Chinese cities, where residents have little direct influence on local public service provision. First, in the presence of resource indivisibility, travel cost, and location‐based rationing, scarcity of public‐service resources in a city makes access to public services more uneven across neighborhoods, thus exacerbating income sorting and spatial inequality in the city. Second, the exacerbating effect of resource scarcity is mitigated by land‐use conditions that limit income sorting. Estimates of willingness to pay by households of different income levels for public‐service resources across cities corroborate both the exacerbating effect of resource scarcity and the mitigating effect of inclusive land‐use conditions.     

Agricultural Development and Household Incomes in Central Asia: A Survey of Tajikistan, 2003-2008

Two noted specialists on the agricultural economies of the former Soviet Union examine the effects of land reform on agricultural production and the income of rural house-holds in Tajikistan. The authors utilize official government statistics to discern trends of agricultural output at the national level, and the results of three extensive surveys conducted in 2007-2008 (N > 2,000) and one in 2003 (N = 4,000 respondents) by international organizations (United Nations Food and Agriculture Organization, Asian Development Bank, the U.S. Agency for International Development, World Bank) to identify household-level changes. They also review the legislative framework for agrarian reform in the country; examine national-level trends in farm structure and organization, livestock production, farm productivity, and cropping patterns; and analyze shifts in size of land holdings and rural family incomes at the household level. Journal of Economic Literature, Classification Numbers: D130, O130, P320, Q150. 11 figures, 10 tables, 42 references.     

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。     

Is Von Thunen Alive and Well? A Transport-Cost Surface for South Australian Wheat

Economic geography has undergone a number of paradigm shifts since the Von Thunen model was at the peak of its popularity in the 1960s and 1970s. This study examines the cost of moving wheat from farm to ship in South Australia and constructs a transport-cost surface for the season 1991/92. Transport costs still exert a very important influence on farm returns and land values. Governments and other authorities, when making decisions in the name of rationalisation, or microeconomic reform, should examine very carefully the spatial consequences of their actions. In the short-run at least, the farmer's world is very much a normative and partial equilibrium one. At least in respect of a significant Australian agricultural enterprise, normative and partial equilibrium models should not be seen as obsolete.     

Rural-Urban Relations,Household Income Diversification and Agricultural Productivity

Does rising income from agriculture drive the growth of nonfarm activities, or does increased income from nonfarm activities spur the growth of agriculture? This paper looks at the role of nonfarm income in enabling smallholders to raise agricultural output and productivity. Based on data from a sample of farm households near Kutus town in the Kirinyaga district of Kenya, it examines these issues by looking at the use of resources for farm production, the risks attached to alternative ways of raising output and productivity, and the household's propensity to accept risk as a function of the extent to which it is able to draw on liquid assets or diversified sources of income. The authors argue that nonfarm income provides households with a form of insurance against the risks of farming, and thus enables them to adopt new production methods and raise output. They argue further that a key factor in creating opportunities for rural households to earn nonfarm income is the presence of vibrant small towns nearby.     

'The last frontier': rationalizing the spread of farming into the boreal woods of Canada, c. 1910–1940

As the twentieth century opened, there were rumours that the cheap land underpinning the dramatic spread of settlement in the previous century might be running out. There were strong motivations, generated particularly by the large body of land seekers with a passion for farming, to hold off the demise of the famous agricultural frontier. Also wedded to the continuation of a frontier were politicians and civil servants across the country. Whether it was a subconscious expectation that the frontier would simply continue or a fear that its disappearance would lead to unpredictable social disturbance, politicians encouraged expansion beyond what was known to be good farmland. The major source of new land, from c . 1910, was the boreal forest. There was a steady accumulation of information about the North that was readily available to government officials but only indirectly to ordinary land seekers. Although the news about farming conditions in the boreal margin was unpromising except for a few pockets, independent and assisted farm settlements continued into the 1930s. The typical two-thirds of farm failure within one generation in most of the new boreal settlements caused a great deal of settler grief and forced reluctant officials to respond to the negative scientific evidence and to reassess frontier nostalgia. The Second World War provided both a denouement of the northern farm settlement and a reason for many people to depart the 'last frontier'.     

延安市农民收入可持续增长机制探析

近年来,延安市农民人均纯收入一直低于全国平均水平,城乡居民收入差距也不断扩大。为改变这一局面,延安市政府实施了生态移民工程,进行了农业产业结构调整。这些措施在一定程度上改善了农民的生活水平,但是,制约农民收入增长的根本性障碍仍然存在。只有促进高附加值农业的可持续发展、鼓励农村剩余劳动力的外出就业和使农村非农产业实现较快发展,才能建立起农民收入的可持续增长机制。     

中国女性农民工务工活跃度研究——基于全国29省份调查数据与陕西省实证研究

基于全国范围内(除京沪港澳台地区)女性农民工外出务工调查数据,提出女性农民工务工活跃度新概念,并将该概念分解为四个活跃度因子:务工距离、务工时间、务工地点数以及务工频数,用层次分析法得出各因子的权重并计算各省市区的活跃度。引入对应各省市区农民人均纯收入进行回归分析,与多项式模型拟合较好,活跃度随农民人均纯收入的减小而有增大的趋势。分别对四个活跃度因子的地理空间分布进行研究,运用聚类分析法进一步探究务工活跃度结合农民人均纯收入在地理空间上的分布特征,并在全国范围内划分出7个区域类型。最后以陕西省为例,用Logistic回归模型得出女性农民工的个人、家庭及其他因素对务工活跃度有较大影响。     

Deserted medieval villages and fields in Germany,a survey of the literature with a select bibliography

In Germany research into deserted settlements developed into an important branch of settlement history. It was realized that the fourteenth and fifteenth centuries, following on a period of high-medieval expansion of settlement and cultivated land, were themselves a time of great decline. The theoretical explanation for this development is the late-medieval agricultural crisis, a concomitant of the late-medieval fall in population. We must distinguish between a high-medieval phase of settlement desertion associated with a concentration of population into larger villages and towns without a drop in absolute population figures, and a late-medieval desertion period when settlements and fields contracted because of loss of life due to famines and the Black Death. Different research methods have been used to locate deserted settlement sites, both from documentary evidence (Rückschreibung) and by doing field-work. By mapping the relict features of deserted villages and fields our knowledge of the evolution of settlement- and field-patterns was increased. In particular, the evolution of the three-field-system has been explained as part of the concentration of population into larger settlements. A classification of the desertion process has helped with the terminological clarification of the subject, although there remain areas of dispute. The introduction of the desertion quotient made it possible to map the distribution of the deserted settlements. In the light of most recent research based on medieval archaeology this map needs corrections. It is now obvious that the late-medieval desertion quotient was not only high in areas of marginal land quality but also in fertile areas with a long history of settlement continuity. In those areas vestiges of earlier occupations were literally ploughed into the ground. This example illustrates that future research on deserted settlements must be of an interdisciplinary nature.     

国内外农村居民点区位研究评述

随着人类经济社会的发展,居民点的外在特征和空间结构也在不断的演化与变迁,居住地点的选址和布局最能反映出人类活动与地理环境之间的相互影响与作用机制。目前国内外在城市居住区位研究方面已经形成大量研究成果,相比之下,农村居民点相关研究还存在一定滞后。文章从居民点区位影响因素、区位演变、居民点分布和等级结构四方面对国外相关研究进行了评述,梳理了国内农村居民点区位研究的相关内容,在此基础上对存在的问题进行了讨论和总结,并对今后研究内容进行了展望。     

Cross-Cultural Approaches in Archaeology: Comparative Ethnology, Comparative Archaeology, and Archaeoethnology

Cross-cultural approaches have been used widely in archaeological research. Comparative ethnology has provided a number of archaeological indicators of behavior, but large segments of the archaeological record have not yet been subjected to extensive comparative analysis. Comparative archaeology has aided in exploring variation among societal types (such as chiefdoms) and categories within the archaeological record (such as settlements). Diachronic comparisons have been used frequently by archaeologists, but these have often been based on unique samples and only rarely have employed statistics to aid in the discovery or testing of hypotheses. Archaeoethnology, comparative analyses of archaeological cases employing valid samples and statistical evaluation of theories and hypotheses, is introduced.     

COMMUTING LINKS AT LOWER LEVELS OF RURAL SETTLEMENT

The study of commuting links in rural areas of the Non-Chernozem Zone offers a useful approach to the redesign of settlement patterns. Commuting to work is analyzed in 80 primary settlement systems (farm systems) in five rayons of Vologda Oblast. Most of the commuting streams are found to occur toward the central farm settlements within systems and also between adjacent systems, with rural nonfarm places (both industry-based and transport based) offering the principal opportunities for employment. Commuting is analyzed in terms of two indices: a labor-balance index (relating resident population and employment opportunities) and a commuting intensity index (relating the number of commuters to resident population).     

Specialization of Agriculture in Relatively Similar Natural Environments of the USSR and the United States

Four pairs of minor civil divisions in the United States and the USSR are compared to determine differences of agricultural land use in areas with similar soils and heat and moisture supplies. In the United States, crops exceed animal products as a source of farm income only in the driest area. In the Soviet Union, crops are the principal source of farm income in both dry and more humid areas. This is related to the fact that the United States produces forage grasses and forage root crops mainly in more humid areas, while the Soviet Union relegates forage crops to a secondary role after bread grains and industrial row crops. Grain yields in the United States rise markedly from drier to more humid areas. In the Soviet Union the highest yields are achieved in the moderately dry chernozem zone.     

地理学视角下的国内农村聚居研究综述

农村聚居是农村居民与周围自然、经济、社会、文化环境相互作用的结果,是人类聚居学的重要研究内容。随着新农村建设、农村土地流转、城乡统筹、新型农村社区建设等政策与措施的相继出台,农村聚居研究日益凸显出重要的实践意义与学术价值。本文对近十年来国内地理学关于农村聚居区位、形态、规模与等级、功能组织、演变机理、优化调控以及聚居类型与区划等研究内容的主要观点作了较详细的介绍,指出了地理学在农村聚居基础理论、研究内容、研究方法和技术等方面的薄弱环节,并展望其未来的研究趋势。     

Azerbaijan: Territorial Issues and Internal Challenges in Mid-2001

This paper examines the relationship between size of land holding and family income, based on a recent survey of rural households in Poland. In general, the results indicate a positive relationship between income and size of land holdings, suggesting that successful Polish farmers are expanding their farm holdings through land market transactions. Constraints to efficient functioning of these land markets in Poland are investigated as well, which include high government-determined land transaction costs, complex registration procedures, poor access to mortgage facilities, and a bias against larger farms built into the unemployment benefits system. Journal of Economic Literature, Classification Numbers: O18, Q15, Q24. 5 figures, 12 tables, 10 references.     

不同尺度乡村聚落景观的空间集聚性分形特征及影响因素分析——以江苏省镇江市为例

为分析乡村聚落景观空间结构的分形特征,以GIS为平台、土地调查数据为主要数据源,通过集聚维数,分别在县域、镇域和村域三个尺度上,分析了聚落体系空间集聚性的分形特征及其影响因素。结果表明:乡村聚落景观在空间结构上具有比较明显的分形特征;空间集聚性存在不同尺度分形特征的差异,同时丹阳市的镇和中心村的集聚性则明显小于句容市;不同尺度聚落集聚性出现明显的尺度特征,即中心村 > 镇 > 县城;地形是影响乡村聚落景观空间集聚性分形特征,表现为腹地内坡度越大,集聚性越强;交通网络的完善降低了乡村聚落对空间直线距离的依赖性。