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There are 4, 053 content items of different types and languages related to investigação on the Land Portal.

investigação

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The Economic Centrality of Urban Centers in the Medieval Peloponnese: Late 11th–Mid-14th Centuries

Peer-reviewed publication
Dezembro, 2018
Global

The Peloponnese, a province of the Byzantine Empire in the 11th and 12th centuries, was divided into three distinct political entities after 1204: the Frankish Principality of Achaia, the Venetian colonies of Modon and Coron, and the Byzantine lands in the southeast. The number and size of cities in the Peloponnese during the 11th and 12th centuries expanded, and the establishment of the new political entities of the 13th century did not hinder the development of its urban centers. New urban centers appeared, and the dynamics of the old urban centers witnessed a major shift.

Characterizing the Spatial and Temporal Availability of Very High Resolution Satellite Imagery in Google Earth and Microsoft Bing Maps as a Source of Reference Data

Peer-reviewed publication
Dezembro, 2018
Índia
Estados Unidos
Europa

Very high resolution (VHR) satellite imagery from Google Earth and Microsoft Bing Maps is increasingly being used in a variety of applications from computer sciences to arts and humanities. In the field of remote sensing, one use of this imagery is to create reference data sets through visual interpretation, e.g., to complement existing training data or to aid in the validation of land-cover products. Through new applications such as Collect Earth, this imagery is also being used for monitoring purposes in the form of statistical surveys obtained through visual interpretation.

The Emergence of Landscape Urbanism: A Chronological Criticism Essay

Peer-reviewed publication
Dezembro, 2018
Global

Scholars and practitioners have great interest in topics related to spatial patterns and the organization and properties of space. Landscape urbanism is one of these topics of interest. This essay, in the form of chronological criticism, presents a broad historical overview of the rise of landscape urbanism, primarily from a landscape architectural/geographical/ecological perspective, comparing the normative theories derived in the Western traditions embedded in urban design and architecture with the general values of landscape urbanism.

A Model for Estimating the Vegetation Cover in the High-Altitude Wetlands of the Andes (HAWA)

Peer-reviewed publication
Janeiro, 2019
Chile

The natural salt meadows of Tilopozo in the hyperarid, Atacama Desert of northern Chile, which are located at approximately 2800 m above sea level, are under pressure from industrial activity, and cultivation and grazing by local communities. In this research, the land surface covered by salt meadow vegetation was estimated from normalized difference vegetation indices (NDVI) derived from Landsat Thematic Mapper (TM), Enhanced Thematic Mapper (ETM+) and Operational Land Imager (OLI) data from 1985 to 2016.

Gender, Educational Attainment, and Farm Outcomes in New Zealand

Peer-reviewed publication
Janeiro, 2019
Nova Zelândia

Empirical studies of farm outcomes that rely on survey data often find important roles for education and gender. However, relatively few studies consider either field of study or gender of the decision maker (as opposed to gender of the survey respondent). This paper evaluates how the field of education and gender of decision makers correlate with profitability, farm management, future intentions, risk and norms, and adoption of novel technologies in New Zealand, explicitly accounting for the fact that many farming households make decisions jointly.

New 1 km Resolution Datasets of Global and Regional Risks of Tree Cover Loss

Peer-reviewed publication
Janeiro, 2019
Global

Despite global recognition of the social, economic and ecological impacts of deforestation, the world is losing forests at an alarming rate. Global and regional efforts by policymakers and donors to reduce deforestation need science-driven information on where forest loss is happening, and where it may happen in the future.

Globalization and Biodiversity Conservation Problems: Polycentric REDD+ Solutions

Peer-reviewed publication
Fevereiro, 2019
Global

Protected areas are considered the cornerstone of biodiversity conservation, but face multiple problems in delivering this core objective. The growing trend of framing biodiversity and protected area values in terms of ecosystem services and human well-being may not always lead to biodiversity conservation. Although globalization is often spoken about in terms of its adverse effects to the environment and biodiversity, it also heralds unprecedented and previously inaccessible opportunities linked to ecosystem services.

Making It Spatial Makes It Personal: Engaging Stakeholders with Geospatial Participatory Modeling

Peer-reviewed publication
Fevereiro, 2019
Global

Participatory research methods are increasingly used to collectively understand complex social-environmental problems and to design solutions through diverse and inclusive stakeholder engagement. But participatory research rarely engages stakeholders to co-develop and co-interpret models that conceptualize and quantify system dynamics for comparing scenarios of alternate action. Even fewer participatory projects have engaged people using geospatial simulations of dynamic landscape processes and spatially explicit planning scenarios.

Net Global Warming Potential of Spring Wheat Cropping Systems in a Semiarid Region

Peer-reviewed publication
Fevereiro, 2019
Global
América do Norte

Investigations of global warming potential (GWP) of semiarid cropping systems are needed to ascertain agriculture’s contributions to climate regulation services. This study sought to determine net GWP for three semiarid cropping systems under no-tillage management in the northern Great Plains of North America: spring wheat (Triticum aestivum L.)—fallow (SW-F), continuous spring wheat (CSW) and spring wheat—safflower (Carthamus tinctorius L.)—rye (Secale cereale L.) (SW-S-R).

Tick Bite Risk as a Socio-Spatial Representation—An Exploratory Study in Massif Central, France

Peer-reviewed publication
Março, 2019
França

Ticks are responsible for the largest number of transmissions of vector-borne diseases in the northern hemisphere, which makes the risk from tick bites a serious public health problem. Biological scientific research and prevention studies are important, but they have not focused on the population’s perception of tick bite risk, especially at a spatial level.