Restoration of Ecosystem Carbon Stocks Following Exclosure Establishment in Communal Grazing Lands in Tigray, Ethiopia
Degraded lands are common in human-influenced tropical semiarid areas, and the potential for C sequestration through rehabilitation of these areas is substantial. In this study, we investigated changes in ecosystem C stocks (ECS) after establishing exclosures on degraded communal grazing lands, and identified easily measurable biophysical and management-related factors that can be used to predict ECS restoration in the highlands of Tigray, Ethiopia. We selected replicated (n = 3) 5-, 10-, 15-, and 20-yr-old exclosures and paired each exclosure with an adjacent communal grazing land.
Soil properties, crop production and greenhouse gas emissions from organic and inorganic fertilizer-based arable cropping systems
Organic and conventional farming practices differ in the use of several management strategies, including use of catch crops, green manure, and fertilization, which may influence soil properties, greenhouse gas emissions and productivity of agroecosystems. An 11-yr-old field experiment on a sandy loam soil in Denmark was used to compare several crop rotations with respect to a range of physical, chemical and biological characteristics related to carbon (C) and nitrogen (N) flows.
Building plot-land discrimination in expropriation cases
In recent years, infrastructure investments, especially construction of new roads and upgrading of existing ones, have accelerated in Turkey. Expropriation cases related to building plot and land have increased due to these investments. One subject causes conflict and leads to the prolongation of cases due to the misuse of building plot-land discrimination.
How natural disturbance triggers political conflict: Bark beetles and the meaning of landscape in the Bavarian Forest
The incidence of natural disturbance in forests is increasing globally as a consequence of global warming. The concomitant large-scale transformation of landscapes can have profound social impacts and trigger political conflict that hampers resource management. This paper explores the link between landscape transformations and political conflict using the example of the bark beetle epidemic in Bavarian Forest National Park, Germany.
Modeling wetland change in Spainâs Tierra de Campos district
The various land management and planning policies that have been developed for the Tierra de Campos district of northwestern Spain over the past century have had major effects on wetland ecosystems of this area. To assist conservation planners in the future management of these habitats, this study outlines the changes that have occurred in these environments using data for the years 1900, 1956, 1984 and 2007. Multiple logistic regression models allowed the accurate projection of locations of wetlands that need to be restored or regenerated.
Assessing rural landholders diversity in the Wet Tropics region of Queensland, Australia in relation to natural resource management programs: A market segmentation approach
Government agencies in many countries are encouraging rural landholders to improve their land management practices in order to improve the health of the natural environment. The level of adoption of improved practices by landholders is, however, highly variable. Understanding the diversity of rural landholders is an important step in increasing the uptake of improved land management practices. In this study, we investigate the factors that influence landholders to adopt recommended practices and use this to provide insights into how to encourage greater adoption of these practices.
Which policy would work better for improved soil fertility management in sub-Saharan Africa, fertilizer subsidies or carbon credits?
Why do many smallholder farmers fail to adopt improved land management practices which can improve yields and incomes? The reason is not always because these practices are uneconomical but sometimes it is because resource poverty prevents farmers from taking advantage of yield and income enhancing agricultural practices. In this study we examine the relative merits of using a carbon payment scheme compared to a subsidy policy to help reduce the cost of specific land management practices with productivity and ecosystem benefits such as carbon sequestration.
potential for soil carbon sequestration in three tropical dryland farming systems of Africa and Latin America: A modelling approach
Performance evaluation and cost assessment of a key indicator system to monitor desertification vulnerability
A number of studies have dealt with the assessment of potential and actual desertification risk using composite indices. The Environmental Sensitivity Areas (ESA) approach, developed in the framework of MEDALUS project funded by the European Community, is one of the most used procedures to monitor land vulnerability to degradation in the Mediterranean region. The final output of this procedure is an index (ESI) composing four indicators of climate, soil, vegetation, and land management based on 14 elementary variables.
Integrating forest biomass and distance from channel to develop an indicator of riparian condition
Living and detrital biomass in a riparian buffer zones ameliorate diffuse-source pollution originating from adjacent landscapes, with higher nutrient removal potential, particularly with respect to nitrogen and sediments, associated with more biomass (i.e., older forests). Pollution removal is mediated by sediment trapping and uptake of nitrogen by plants and by denitrification by microbial communities in root zones using organic matter and root exudates as energy sources.