نتایج جستجو برای: grazing lands
تعداد نتایج: 25585 فیلتر نتایج به سال:
Baker, Patrick J.; Scowcroft, Paul G.; Ewel, John J. 2009. Koa (Acacia koa) ecology and silviculture. Gen. Tech. Rep. PSW-GTR-211. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 129 p. Koa (Acacia koa) is a tree species endemic to Hawaii that is of immense ecological and economic importance. This species has been mined from local forests for its ...
Wildfires can drastically change rangeland by depositing ash contaminated with metals that are not part of normal diets. This pose health threats to humans and animals. risk, along alterations essential minerals in livestock grazing on regrowth burnt lands, is well known. To better understand this, our study investigated metal concentrations water, soil, plant forage, meat wool sheep the burned...
Quantitative study of species diversity across different land use units and districts is important to document status of local plant biodiversity, to evaluate impact of management and for planning future management. This study aimed at determining impacts of land use units on species diversity and spatial distribution of species in two districts of Borana zone, Oromia, Ethiopia. Stratification ...
A research study was conducted in Mashuru Division of Kajiado District, Kenya with the objective of analyzing the types of vegetation degradation, their causes and their influence on rangeland condition and trend. The study was conducted through remote sensing tools, ground truthing, interviews, community workshop and literature. The results of the study showed that excessive use of the woody s...
Fire management practices affect alien plant invasions in diverse ways. I considered the impact of six fire management practices on alien invasions: fire suppression, forest fuel reduction, prescription burning in crown-fire ecosystems, fuel breaks, targeting of noxious aliens, and postfire rehabilitation. Most western United States forests have had fire successfully excluded for unnaturally lo...
Entrepreneurial activities are considered a commitment to economic growth with the motivation of deriving ecological sustainability. The main objective this paper is capture environmental effects entrepreneurship development on footprint croplands and grazing lands in 14 developing, emerging, developed countries different sizes during 2002–2018. Empirical analyses anchored set estimation proced...
Communal lands and natural resources in rural Cambodia have transformed over the past 30 years as country attempts to transition from conflict liberal democracy integrates into global agricultural value chains. We find that gender relations are changing a result of land privatization ensuing social ecological crises production reproduction. The forest has become space for articulation new mascu...
In Sub-Saharan Africa, mobility through transhumance is a much-valued strategy of pastoralists for dealing with rainfall variability (see Swallow 1994; van den Brink, Bromley, and Chavas 1995; Ellis and Swift 1988). Transhumance is generally practiced in the arid to semi-arid regions of Sub-Saharan Africa, an environment characterized by low mean rainfall and high rainfall variability. Higher r...
Context The Acland Land System overlying the Walloon sandstone coal deposits in southern Queensland is generally marginal for cropping but well suited to grazing, and thus cultivated land commonly returned pasture. Rehabilitation of these lands after open-cut mining seeks be safe, stable self-sustaining satisfy requirements ecologically sustainable development. Aims present paper evaluates sust...
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