نتایج جستجو برای: degradation due to population growth
تعداد نتایج: 11049791 فیلتر نتایج به سال:
Abstract Climate change has adverse impacts on Arctic natural ecosystems and threatens northern communities by disrupting subsistence practices, limiting accessibility, putting built infrastructure at risk. In this paper, we analyze spatial patterns of permafrost degradation associated risks to due loss bearing capacity thaw subsidence in regions the Arctic. Using a subset three Coupled Model I...
the purposeof this studywas to analyzing factors that effecting on rangeland degradation. statistical population of this research consisted of whole farmer in pirtaj district (n= 1600); from that 120 farmer were selected as sample using cluster sampling. the main tool to collect data was a researcher made questionnaire that content validity of the questionnaire was approved, by a panel of exper...
Abstract Today, population growth is one of the most important issues facing the countries because it affects the patterns of sustainable economic growth. Population growth is a key element of semi-endogenous economic growth models. Semi-endogenous growth states that economic growth is correlated with the growth rate of effort in research and development. The common features of these models ...
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