Children of migrants in China in the twenty-first century: trends,living arrangements,age-gender structure,and geography

ABSTRACT

Children – including those of migrants – are China’s future. Children of migrants now make up close to 40% of all children in China. This paper analyzes the recent trends from 2000 to 2016 and the major aspects of the children of migrants by distilling data from multiple large national surveys and assessing the very small rural left-behind children (LBC) population figures published by the Ministry of Civil Affairs in 2016. The paper also develops a method to estimate the LBC population generated by migrants in each provincial destination between 2010 and 2015, linking up different but related populations (adult migrants, migrant children, and LBC) in the origins and destinations. This broader “origin-destination” framework allows us to pinpoint clearly a major driver of LBC and hence to identify provinces needing the most attention in national and provincial efforts to alleviate the problem of LBC.

Abbreviations: MC: Migrant Children; LBC: Left-Behind Children; MPR: Migration Participation Rate: LBCG: Left-Behind Children Generated     

基于可见光谱特征提取的敦煌壁画颜料识别方法研究

为了对壁画颜料种类进行无损识别,根据不同的物质对光的吸收特性不同,决定着光谱反射率不同这一特性,提出一种基于可见光谱的颜料识别方法,并对敦煌壁画所用颜料进行了分析。提取可见光谱曲线二阶导数负数部分表征曲线峰值区域的几何轮廓,利用中值金字塔对提取结果进行三层分辨率表征以突出曲线峰值位置信息,归一化三种表征尺度并组合构建特征空间F,以欧氏距离为准则对壁画采样点与颜料库样本进行相似度判别,从而识别出壁画用颜料信息。结果表明,本研究构建的识别方法能够对壁画颜料种类进行无损识别,在壁画数字存档及修复领域具有一定的应用前景。     

Identifying the Impacts of Land-Use Spatial Patterns on Street-Network Accessibility Using Geospatial Methods

While the land use-street network nexus is well acknowledged, evidence for the one-way impacts of land-use patterns on street accessibility is still inadequate. The measurements of land-use patterns and street accessibility lack systematic knowledge. Their empirical correlations also lack geographical variability, constraining site-specific land-use practices. Therefore, this study overcame the aforementioned limitations by examining the two-level spatial models to formulate accessibility-oriented land plans, using a well-developed Chinese city as an example. Firstly, two landscape metrics—Euclidean Nearest-Neighbor Distance (ENN) and Similarity Index (SIMI)—were used to quantify the intra- and inter-land-use configurations, respectively. Both city-level and local accessibility were measured using spatial design network analysis. Performing both ordinary least squares (OLS) and geographically weighted regression (GWR) models, results identified the statistically significant effects of inter-land-use patterns on two-level street accessibility. An exception was that land-use configurations within residential and industrial regions were irrelevant to street accessibility. We also found GWR was a better-fitting model than OLS when estimating locally-varied accessibility, suggesting hierarchical multiscale land-use planning. Overall, locally heterogeneous evidence in this study can substantialize land use-street network interactions and support the decision-making and implementation of place-specific accessibility-oriented land use.     

曾巩诗文版本概况与辑佚

“唐宋古八大家”之一的曾巩(1019—1083)是北宋中期名的学家,其存世作品主要辑录在《元丰类稿》中,历朝均受到推重。近人版本中以《曾巩集》内所辑的曾巩诗最齐全,而《全宋》、《全宋诗》、《全宋词》中所辑录的曾巩作品也不容忽视。然而笔在研究整理曾巩作品时,也发现了曾巩零星未被上述四书收入的诗,现将之辑录起来,望为学术界研究曾巩时有所帮助。     

Postcolonial cultural governance: a study of heritage management in post-1997 Hong Kong

This paper seeks to unpack the politics of heritage preservation in post-1997 Hong Kong. Referring to international frameworks on heritage preservation, it seeks to position Hong Kong’s cultural resource management on par with international discourses for the advancement of heritage governance. Debates surrounding heritage are indeed a part of the wider picture of Hong Kong’s cultural and identity politics and the Hong Kong-China relationship. By examining various contested cases of heritage conservation, and by linking those debates back to the government’s responses within the context of cultural governance, we suggest that heritage management has become a hot stove for cultural politics in post-colonial Hong Kong with deep repercussions in the political, social and economic spheres. The paper examines the rising social debates concerning the removal and conservation of built heritage, and the various government attempts to address these debates. It argues that the current heritage governance mechanism has failed to meet social needs and provide an articulated heritage policy. We propose that a coherent organisational structure is required to better accommodate diverse and contradictory views and discourses surrounding heritage and cultural governance and to tackle the various cultural challenges in postcolonial Hong Kong.     

Social sustainability of urban regeneration led by industrial land redevelopment in Taiwan

Abandoned industrial sites, usually contaminated by hazardous substances, create social injustice in the surrounding communities. Redevelopment of industrial land has brought prospects of sustainable development to the communities that live in and around them. This research is to identify the critical factors facilitating urban regeneration and particularly social sustainability in Kaohsiung, an industrial city of Taiwan which experienced deindustrialization in recent decades, resulting in several abandoned industrial sites and decay of the adjacent urban communities. Two different industrial land redevelopment projects were examined; (1) Jhongdou Wetland Park, which focuses on environmental sustainability, and (2) Pier-2 Art Centre, which focuses on economic sustainability. Measured by the social sustainability indicators developed by the Oxford Institute for Sustainable Development and through findings from a questionnaire survey of community members, this study found that the redevelopment project of the Pier-2 Art Centre has a higher level of social sustainability than the Jhongdou Wetland Park, performing better in six out of nine themes. Critical dimensions resulting in the better performance in social sustainability of the Pier-2 Art Centre included rental affordability, heritage conservation, community image, cultural activity, community association, public space, local organization and higher accessibility to facility.