Urban land administration and planning in China: Opportunities and constraints of spatial data models

China's economic reforms over the past decades have given rise to the development of a rudimentary urban land market. Although one cannot speak of a land “market” in the strict sense of the word, there is an urban land allocation system in which land lease rights can be acquired through the payment of a land-use fee. If the urban land market is to develop in a sustainable manner, new credible institutions need to be established that can safeguard greater legal security and transparency. For these purposes, it is necessary to establish a management system that can support the legal (tenure security), economic (leases, taxes) and broader aspects (spatial and environmental land use policies) of land administration. To make an urban land administration system socially credible and functional, land-related information should be registered and structured at a detailed spatial level, such as parcels. There is no parcel-based information system in China, but the country has developed a population registration system at a detailed spatial level that could be a starting point to develop integrated information systems, or a so-called “local spatial data infrastructure”. This paper reviews China's population registration system and their spatial units and presents a proposal for an information system that can be expanded or adapted to meet the requirements of an effective land administration system.     

Development of 3D underground cadastral data model in Korea: Based on land administration domain model

Underground space is being considered as a sustainable development resource, especially in heavily urbanized areas such as Seoul, in Korea. However, regarding 3D underground property, uncertainties and gaps exist between cadastral system and real property registration system. In Korea, cadastral system is able to deal with only 2D surface parcel, on the contrary, real property registration system is able to register and manage legal status of 3D underground properties. The mismatch between these two systems causes various types of problems for underground properties such as a vertical boundary disputes between aboveground and underground ownerships, administrative confusion and dual-compensation problems for new underground construction, reconstruction and haphazard development for underground space due to the lack of systematic registration procedure. In order to overcome these problems, this research proposes a 3D underground cadastral data model, which is associated and integrated with classes in ISO 19152 Land Administration Domain Model (LADM) developed by the Technical Committee 211 of the International Organization for Standardization. The proposed 3D underground cadastral data model comprises two packages: 3D underground parcel package, and 3D underground surveying and mapping package. It would support a better service for land administration by providing reliable and accurate spatial information on 3D underground property. In order to validate the proposed 3D underground cadastral data model, the prototype is developed and implemented in real-world situation for the first time. The proposed 3D underground cadastral data model can register various types of 3D underground properties including architectures such as shopping mall, public walkway, parking lot, and etc., and civil infrastructures such as subway, road, water supply, sewage, common utility tunnel, and etc. The results show that the proposed 3D underground cadastral data model could be applicable for other information system such as land valuation and taxation system, urban planning system, construction and facility management system.     

3 Dimensional data research for property valuation in the context of the LADM Valuation Information Model

Property valuation is a process that promotes sustainable development as it supports and forms several land management activities. Access to information on the legal, geometric, physical, locational and environmental characteristics of property units together with the economic indicators are required for an effective property valuation system. Traditional cadastral systems generally provide only two-dimensional (2D) legal and geometric information about property units, however, today’s valuation practices would benefit significantly from three-dimensional (3D) information in order better to estimate and explain values of property units. The purpose of this paper is to examine how 3D spatial datasets and spatial analyses have been used in property valuation, and to develop 3D valuation unit profile(s) in line with the examination results for the recently proposed Valuation Information Model that extends the ISO 19152:2012 Land Administration Domain Model (LADM) from the valuation point of view. The study focuses more on 3D locational and environmental characteristics of property units; particularly visibility and especially viewshed analysis in terms of property valuation. By using open topography, building and height datasets of the Netherlands, a number of viewshed analyses are conducted to show how it can be utilized using different 3D data sources. The main contribution of the article is to present how 3D datasets and spatial analyses could be used to support property valuation activities and to investigate to what extent it is possible and meaningful to include derived 3D characteristics of property units in valuation registries.     

A conceptual framework and its software implementation to generate spatial decision support systems for land use planning

In a context where several sectors of society compete for space, land use types must be carefully designed and spatially allocated to guarantee a sufficient level of relevant ecosystem services (ES) in a territory of interest. In this respect, contemporary land use planning involves multiple, often conflicting objectives and criteria. Consequently, major benefits can be expected from spatial decision support systems (sDSS) designed to deal with complex spatial allocation problems.This paper presents the generic conceptual framework ‘OSMOSE’ and its free and open source software implementation, for the generation of specific sDSSs for spatial land use planning. The specific sDSSs generated with OSMOSE are meant to (i) identify land units which meet multiple predefined ES-attribute values for a specific land use type (LUT) and (ii) rank land units for a given LUT according to these multiple ES-attributes. A complementary purpose is to (i) identify and (ii) rank LUTs for a given land unit. Whereas ‘identification’ is done by means of a threshold query, ‘ranking’ is based on the Iterative Ideal Point Thresholding (IIPT) method. The proposed framework is extremely flexible as it can accommodate differentially weighted, continuous and/or ordinal attributes with, for the latter, equal or unequal number of classes, alternative land unit definitions and land use types. Moreover, assessments cannot only be made using ES-levels for the land unit/LUT combinations but also in terms of changes in ES-levels after a particular change of LUT.The OSMOSE framework is illustrated by means of the specific sDSS BoLa which is generated to support land use planning in the region of Flanders (Belgium) with focus on soil protection. Four cases are presented in which the decision support varies between the available approaches (threshold – selection, threshold – ranking, IIPT – selection, IIPT – ranking).     

The quest for a sustainable spatial planning framework in Zimbabwe and Zambia

Over the years, the Zimbabwean and Zambian governments have been facing severe spatial development inequalities. They have therefore put in place various policies and strategies in a bid to ensure equitable spatial development. Spatial planning, which refers to the distribution of land uses and people, not only focuses on the physical aspects of land but also on national economic, environmental and social policies. This paper examines spatial planning frameworks in Zimbabwe and Zambia and how they have influenced spatial planning. The effect of spatial planning frameworks on development reveals a close relationship between spatial plans and spatial planning outcomes. The study shows how changes in institutional and legal frameworks affects development in different sectors of the economy and that a holistic approach to planning promotes sustainable development without neglecting other sectors. The data for the study was drawn primarily from secondary sources through a review of documents such as statutes, local development plans and other statutory instruments. The study found that in order to achieve sustainable spatial planning, there is need for a sustainable framework to guide spatial planning. Sustainable spatial planning frameworks also control and promote spatial development in both Zimbabwe and Zambia. Both institutional and legal frameworks guiding spatial planning should be sustainable for the benefit of future generations.     

The role of spatial planning in coastal management—A case study of Tuticorin coast (India)

The focus of coastal management in recent years has shifted from a sectoral plan to a holistic and integrated one. A key component of this integrated plan is spatial planning. This paper serves to highlight the role of spatial planning in coastal management by making use of a study done for the Tuticorin coast in India. A quantification of the land use/land cover changes in this region was studied along with the existing laws and policies governing the Indian coast with particular reference to Tuticorin, to determine their influence/impact on coastal land use/land cover. The results of the study show the disparity that exists between current land use practices and the laws that have been enforced to safeguard the coast. This can be overcome by means of implementing a more stable management plan that incorporates the spatial aspects of this coast, which has been presented.     

Assessing impact of land uses on land salinization in the Yellow River Delta,China using an integrated and spatial statistical model

Intensification of agriculture and industry in salinized areas poses a risk of secondary salinization. Thus, comprehensive and spatially explicit assessments are needed to assist government in developing ecologically sound policies. Few assessments have comprehensively quantified the impacts of multiple anthropogenic activities on salinization as environmental interferences and salinity autocorrelation are largely neglected. This study tried to perform such an assessment by identifying the nature of human impacts on salinization from three aspects in the Yellow River Delta (YRD) of China. A versatile GIS-based spatial autoregression (SAR) was applied to nine selected explainable variables in six sub-region models. Sub-region model was verified as an effective tool of normalizing environmental interferences because more useful spatial information was provided compared to the whole region model. GIS-SAR model fit better and performed better in quantifying human activities, compared to the conventional ordinary least square regression (OLSR) model, as SAR can deal with spatial autocorrelation in soil salinity. Among the well-defined key determinants, oil exploitation and saline aquaculture were aggregative to salinization but only in originally highly saline sub-regions, such as coastal zone and Gleyic Solonchaks (coastal saline moisture soil) area. Two agricultural activities, crop plantation and fertilization, were mainly ameliorators in most sub-regions. The most effective salinization alleviation occurred in moderately saline sub-regions, such as floodplain and Salic Fluvisols (saline moisture soil) area, which benefitted from the development of agroforests and farm ponds. The SAR sub-region model is spatially explicit for spotting the hazardous areas and some suggestions were also provided for the policy makers.     

3D Cadastres in India: Examining the status and potential for land administration and management in Delhi

Urbanization and the trend towards complex infrastructure development challenges the traditional two-dimensional (2D) cadastral representations used in conventional land administration. Three-dimensional (3D) representations are argued to serve as the future basis upon which to spatially define rights, restrictions and responsibilities (RRRs) in these environments. In Delhi, the capital city of India, where horizontal expansion via new settlements in peri-urban areas, and vertical expansion by densification of city infrastructure, are both prevalent, the need to manage this increasingly complex 3D infrastructure environment presents a great challenge for land administration and management agencies. This paper explores both the current and potential future application of 3D representation in Delhi, with respect to land use planning, development and management. A cross-cutting thematic case study analysis is undertaken: policy drivers, legal frameworks, organizational aspects, and technical standards are considered. For each aspect a separate analytical approach is used. Based on the results, it is concluded that current practices related to 3D representation are somewhat immature and not adequate for capturing the future vertical growth of Delhi. This could lead to legal and physical boundary inconsistencies and irregularities, and dispute cases. However, by learning from international developments and standards-based approaches, agencies have the potential to enhance and support processes in their respective land administration systems. To realize this potential, internal and external policies, institutional settings and, technical and financial arrangements need to be reformed. In the short term it is recommended to focus on raising awareness for the widespread adoption of 3D representations in relevant agencies in Delhi.     

Towards 3D-enabled urban land administration: Strategic lessons from the BIM initiative in Singapore

Over the last 15 years, there has been great interest and commensurate momentum in the land administration industry on realising the notion of ‘3D cadastres’. This leverages 3D digital technologies for producing, managing, registering and communicating information about complex, volumetrically defined land and property rights, restrictions and responsibilities (RRRs) that are commonly found in cities and urban areas around the world. There has been significant technical progress but implementation remains uncertain. This paper draws on research conducted on the implementation of 3D Building Information Models (BIM) for regulatory processes in the land development industry in Singapore to illustrate the range of strategies used to induce change in an instance of 3D digital innovation. The adoption of institutional theory as an analytical framework provides insight into the cultural and behavioural underpinnings of these strategies and what makes them particularly effective in producing a positive response to change. Given the similarity in the institutional characteristics of the land development and land administration industries, the case study findings are used to develop a framework of strategic principles that could conceivably be used to support ongoing international efforts to realise 3D cadastres.     

Trade-offs at a regional level in spatial planning: Two case studies as a source of inspiration

Societal and technological changes are influencing the spatial expression of human activity and governance. The focus on the regional level is stronger and there is greater cooperation at more levels between public and private stakeholders. Furthermore, there is a growing demand for a better quality of space and new concepts for funding spatial interventions. This whole intricate scenario is in need of new planning instruments that can be deployed at a regional level.     

Spatial information in European agricultural data management. Requirements and interoperability supported by a domain model

Data compatibility and system interoperability are fundamental for crosswalks and collaboration between domains. The most frequently used references for information sharing are time and location. In order to understand the requirements, fundamental processes, and core information concepts of a domain, a comprehensive, but standardised documentation is needed. In spatial data infrastructures models presented in Unified Modelling Language (UML) are widely used to facilitate the uptake of standards and valorise best practices of various communities.The European agricultural decision makers must deal with many components described in the Common Agricultural Policy (CAP) in order to optimize data integration and achieve transparency. Geospatial information plays a key role in the implementation of this policy, which comprises the establishment and maintenance of the Integrated Administration and Control System (IACS).In the past the IACS of the MS has principally served a single high level business case: to run a correct administration of the CAP. However, the recent reform and the synergies with environmental and societal policies create increasing expectations for IACS, which impact upon system interoperability and data usability. These objectives can be achieved by establishing a framework that is standard based, allows flexible extensions, and that supports efficient implementation and information exchange between the stakeholders.This paper presents the development process and describes the structure of a domain model we propose for IACS. This standard driven model was designed to translate requirements into technical elements, ensuring interoperability, and providing flexible extensions at the same time. For this purpose we set-up a formal requirement model, formalized use cases, and integrated ISO/TC 211 and INSPIRE UML based class diagrams. As such, this paper proposes a methodology to help guide how the policy can be implemented.The importance of traceability from IACS and third party business rules to the information concepts was proven by simulation runs. The developed modelling approach yielded a reference for conformance testing, indicated critical points of potential errors, and highlighted the impact of eventual changes. Storing all concepts and implementation options of IACS in a unique framework helps to eliminate redundant efforts, provides a strong basis for developing various applications, underpins interoperability with other domains and enhances transparency of the CAP.     

Farming within a dual legal land system: An argument for emancipatory food systems planning in Accra,Ghana

Contestation over land is a central element of urban food systems. This paper examines how Ghana’s dual legal land system affects urban farmers. Situated within the “emancipatory planning” discourse, the paper investigates how farmers navigate customary and statutory land rules using tactics that include compliance, opposition and adaptation. Based on field work conducted in urban and peri-urban areas of Accra, the study demonstrates that farmers access land by working around, outside, and within the rules of the dual legal land system. The landowners on whom urban farmers depend also both comply with and violate these same rules. This system perpetuates inequities. Food systems policy and planning must address the structural and systemic inequities that are reinforced by the rules of the land game. The paper concludes with some reflections on how local and national policy and planning can do a better job in supporting urban food production in contexts characterized by complex, dual legal land systems.     

Urban development versus wetland loss in a coastal Latin American city: Lessons for sustainable land use planning

Urbanization is a primary cause of wetland loss in coastal metropolitan regions. Therefore, it challenges the preservation of biodiversity and the provision of key ecosystem services for urban settlements. These services include leisure and recreation, climate and water regulation, water purification, and especially alleviation of natural hazards. Tsunami flood mitigation is a particularly valuable regulating service provided by these wetlands, as recently evidenced during the 2010 tsunami that hit the central coast of Chile.The Concepción Metropolitan Area (CMA), located on the central coast of Chile, has experienced noticeable wetland loss in recent decades. Our study focused on the Rocuant-Andalién wetland, which has been particularly affected by urbanization. This wetland strongly contributes to flood control, and has provided effective protection against the CMA’s latest tsunamis (1835 and 2010). Based on Strategic Environmental Assessment (SEA), we have quantified urban growth over the wetland, both executed and projected under the Metropolitan Urban Plan of Concepción (MUPC). Recent loss in wetland area by urban growth has been quantified using land use and cover change (LUCC) maps from 2004 to 2014, obtained from the classification of Landsat images. Prospective changes (considering the complete MUPC deployment) have been inferred by combining the MUPC with the 2014 land cover map. In addition, we quantified the observed effect and planned urban growth on the wetland protected area, geoforms and potential flooding based on the area affected by the last Tsunami. Results show that urban areas have increased by 28% between 2004 and 2014, while future increase is expected to reach 238%. In contrast, wetland area has decreased by 10% from 2004 to 2014 and is expected to decrease by up to 32 %. Thus, the MUPC is not contributing to the mitigation of wetland loss nor the preservation of its biodiversity and ecosystem services. Implications for coastal planning are discussed.     

Dial “A” for agriculture: a review of information and communication technologies for agricultural extension in developing countries

Agriculture can serve as an important engine for economic growth in developing countries, yet yields in these countries have lagged far behind those in developed countries for decades. One potential mechanism for increasing yields is the use of improved agricultural technologies, such as fertilizers, seeds, and cropping techniques. Public sector programs have attempted to overcome information‐related barriers to technological adoption by providing agricultural extension services. While such programs have been widely criticized for their limited scale, sustainability, and impact, the rapid spread of mobile phone coverage in developing countries provides a unique opportunity to facilitate technological adoption via information and communication technology (ICT)‐based extension programs. This article outlines the potential mechanisms through which ICT could facilitate agricultural adoption and the provision of extension services in developing countries. It then reviews existing programs using ICT for agriculture, categorized by the mechanism (voice, text, internet, and mobile money transfers) and the type of services provided. Finally, we identify potential constraints to such programs in terms of design and implementation, and conclude with some recommendations for implementing field‐based research on the impact of these programs on farmers’ knowledge, technological adoption, and welfare.