نتایج جستجو برای: land use change
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Unasylva 230, Vol. 59, 2008 The Intergovernmental Panel on Climate Change’s fourth assessment report (IPCC, 2007) estimated that the forest sector contributes 17.4 percent of all greenhouse gases from anthropogenic sources; most of this is due to deforestation and forest degradation. The Stern Review on the economics of climate change (Stern, 2007), furthermore, observed that “curbing deforesta...
Land use/cover change is one of the main factors in environmental changes. The changes directly affect the value of ecosystem services. The purpose of this research is to evaluate the effect of land use/land cover change in the Kashkan area on its ecosystem services. This research was carried out in three stages, including the analysis of land cover changes, prediction of changes, and carbon st...
چکیده ندارد.
Executive Summary Increasing global demand for food and the need to address climate change risk make it ever more urgent to both protect ecosystems and use land more productively and efficiently. Brazil is a key player in this context and has made significant gains in recent decades. Between 1970 and 2006, its average national cattle farm productivity doubled and its average national crop farm ...
in the recent years, human activities have led to changes in land use and land cover, consequently, these changes lead to the structure and function of ecosystems. spatial-temporal change detection of land use is important to understand the relationships and interactions between human and natural resources and to make appropriate decisions due to changes in land use and land cover occurs in bro...
Climate change and land use often interact, altering biodiversity in unexpected ways. Research into climate change–land (CC–LUC) interactions has so far focused on quantifying outcomes, rather than identifying the underlying ecological mechanisms, making it difficult to predict design appropriate conservation responses. We propose a risk-based framework further our understanding of CC–LUC inter...
Land use change prediction is an important factor in appropriate planning and integrated ecological management of watersheds. There are various methods for modeling and prediction of land use, i.e. Markov chain and CA Markov. In this research, for predicting the land use of Gareen watershed in Iran in 2042, Landsat satellite images of 1986, 2000 and 2014, and the Markov chain and CA Markov was ...
Study of land use effects on soil quality indicators leads to sustainable management and preventing progressive land degradation. The TM (1987) and ETM+ (2000 and 2005) data were used to study land use change effects in Mahan-Joopar area on soil quality indicators. Fifty random soil samples from 0-30 cm depth of each land use were taken using provided maps. Organic matter, microbial respiration...
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