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محیط زیست و منابع طبیعی::
پوشش گیاهی
Anthropogenic climate change impacts lead to depletion of the vegetation cover and loss of biophysical and economic productivity.
The atmospheric CO2 is very much dependent on the vegetative cover and an increase in its concentration affects moisture and rainfall areal distribution all over the world with acceleration or deceleration of the local hydrological cycle.
As stated by Kotwicki and Al-Sulaimani (2009), hydrological consider- ations indicate that increased rain intensity combined with a reduction of annual rainfall is likely to reduce vegetation cover and increase surface runoff, leading to increased desertification.
Crop yield amounts from season (year) to season (year), vegetation cover- age, and changes in agricultural product types.
To understand about drought possibility in any region, it is first necessary to survey not only the weather and climate records but also the social and, espe- cially, economic developments and their impacts on land use, vegetation cover, and so on.
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