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There are 4, 044 content items of different types and languages related to research on the Land Portal.
Displaying 1453 - 1464 of 3155

Ecosystem Productivity and Water Stress in Tropical East Africa: A Case Study of the 2010–2011 Drought

Peer-reviewed publication
March, 2019
Eastern Africa

Characterizing the spatiotemporal patterns of ecosystem responses to drought is important in understanding the impact of water stress on tropical ecosystems and projecting future land cover transitions in the East African tropics. Through the analysis of satellite measurements of solar-induced chlorophyll fluorescence (SIF) and the normalized difference vegetation index (NDVI), soil moisture, rainfall, and reanalysis data, here we characterize the 2010–2011 drought in tropical East Africa.

Towards a Tool for Early Detection and Estimation of Forest Cuttings by Remotely Sensed Data

Peer-reviewed publication
April, 2019
Italy

Knowing the extent and frequency of forest cuttings over large areas is crucial for forest inventories and monitoring. Remote sensing has amply proved its ability to detect land cover changes, particularly in forested areas. Among various strategies, those focusing on mapping using classification approaches of remotely sensed time series are the most frequently used. The main limit of such approaches stems from the difficulty in perfectly and unambiguously classifying each pixel, especially over wide areas. The same procedure is of course simpler if performed over a single pixel.

Mineral Fertiliser Adoption and Land Productivity: Implications for Securing Stable Rice Production in Northern Ghana

Peer-reviewed publication
April, 2019
Ghana

The promotion of farm innovations, such as mineral fertiliser, is one of the strategies for attaining the Sustainable Development Goals (SDGs) of zero hunger and poverty alleviation in developing countries. However, the adoption of mineral fertilisers has been low in Africa, particularly in Ghana. The present study not only analyses the impact of mineral fertiliser on the land productivity of rice farmers in northern Ghana but also determines factors that are associated with the adoption of mineral fertilisers using a primary dataset from 470 rice farmers.

Valuing Our National Parks: An Ecological Economics Perspective

Peer-reviewed publication
April, 2019
United States of America

The annual budget for the United States National Park Service was roughly $3 billion in 2016. This is distributed amongst 405 National Parks, 23 national scenic and historic trails, and 60 wild and scenic rivers. Entrance fees and concessions generate millions of dollars in income for the National Park Service; however, this metric fails to account for the total value of the National Parks. In failing to consider the value of the ecosystem services provided by the National Parks, we fail to quantify and appreciate the contributions our parks make to society.

Linking Arable Crop Occurrence with Site Conditions by the Use of Highly Resolved Spatial Data

Peer-reviewed publication
April, 2019
Global

Agricultural land use is influenced in different ways by local factors such as soil conditions, water supply, and socioeconomic structure. We investigated at regional and field scale how strong the relationship of arable crop patterns and specific local site conditions is. At field scale, a logistic regression analysis for the main crops and selected site variables detected, for each of the analyzed crops, its own specific character of crop–site relationship.

Rent-Seeking Practices, Local Resource Curse, and Social Conflict in Uganda’s Emerging Oil Economy

Peer-reviewed publication
April, 2019
Uganda

We consider the different types of rent-seeking practices in emerging oil economies, and discuss how they contribute to social conflict and a local resource curse in the Albertine Graben region of Uganda. The rent-seeking activities have contributed to speculative behavior, competition for limited social services, land grabbing, land scarcity, land fragmentation, food insecurity, corruption, and ethnic polarization. Local people have interpreted the experience of the consequent social impacts as a local resource curse.

Transformations and Site Locations from a Landscape Archaeological Perspective: The Case of Neolithic Wagrien, Schleswig-Holstein, Germany

Peer-reviewed publication
April, 2019
Germany

Societies undergo continuous dynamics and change. By investigating the spatial structure of societal remains and material culture, we tried to get insights into the processes of their landscapes creation. Ritual practices, economic strategies, or the societal structure are stored in the landscape as a form of cultural contextualization. We presumed that changes of these will be strongest during phases of transformation and investigated to which degree transformation processes are mirrored in the spatial structure of material remains.

Performance Analysis and Soil Quality Indexing for Dalbergia sissoo Roxb. Grown in Marginal and Degraded Land of Eastern Uttar Pradesh, India

Peer-reviewed publication
April, 2019
India

The successful utilization of marginal and degraded lands for biomass and bioenergy production depends upon various factors such as climatic conditions, the adaptive traits of the tree species and their growth rate and respective belowground responses. The present study was undertaken to evaluate the growth performance of a bioenergy tree (Dalbergia sissoo Roxb.) grown in marginal and degraded land of the Mirzapur district of Uttar Pradesh, India and to analyze the effect of D. sissoo plantations on soil quality improvement over the study years.

Assessing Food Systems and Their Impact on Common Pool Resources and Resilience

Peer-reviewed publication
April, 2019
Global

The ongoing expansion of agro-industrial food systems is associated with severe socio-ecological problems. For a closer look at the socio-ecological impacts, we analyze the capacity of six food systems to provide farm-based agroecosystem services with the Agroecosystem Service Capacity (ASC) approach. At the same time, we analyze how food systems affect the management of common pool resources (CPR). Our findings show that indigenous peoples and agroecological food systems can have up to three times the ASC-index of agro-industrial food systems.

Can Traditional Authority Improve the Governance of Forestland and Sustainability? Case Study from the Congo (DRC)

Peer-reviewed publication
May, 2019
Democratic Republic of the Congo

With about 107 million hectares of moist forest, the Democratic Republic of Congo (DRC) is a perfect paradox of a natural resources endowed country caught in repeated economic and socio-political crises. Democratic Republic of Congo possesses about 60% of the Congo basin’s forest on which the majority of its people rely for their survival.

The Geographic Spread and Preferences of Tourists Revealed by User-Generated Information on Jeju Island, South Korea

Peer-reviewed publication
May, 2019
Republic of Korea

Recreation and tourism are important ways that people interact with and derive benefits from natural environments. Understanding how and where nature provides recreational opportunities and benefits is necessary for management decisions that impact the environment. This study develops and tests an approach for mapping tourism patterns, and assessing people’s preferences for cultural and natural landscapes, using user-generated geographic content.

Landscape Notions among Greek Engineering Students: Exploring Landscape Perceptions, Knowledge and Participation

Peer-reviewed publication
May, 2019
Greece

The objective of this paper is to explore and critically analyze the basic notions of landscape and their change through time, among Greek engineering students, from all academically formative years of their undergraduate studies, at the Technical University of Crete. Specifically, it probes into their perspectives vis-à-vis the landscape at large and their everyday-life landscapes in particular, regarding their landscape perceptions, behavior, and education.