نتایج جستجو برای: because of overgrazing
تعداد نتایج: 21165699 فیلتر نتایج به سال:
Satellite observations identify the Mongolian steppes as a hotspot of global biomass reduction, the extent of which is comparable with tropical rainforest deforestation. To conserve or restore these grasslands, the relative contributions of climate and human activities to degradation need to be understood. Here we use a recently developed 21-year (1988-2008) record of satellite based vegetation...
چکیده : آرای صادره از دادگاه ها علاوه بر شیوه های عادی از طریق فوق العاده نیز قابل اعتراض و رسیدگی مجدد هستند. در مواقعی که رای دادگاه مخل به حقوق ثالث باشد وی می تواند به ان اعتراض کند. قلمرو شمول اعتراض ثالث به تصمیمات قضایی که از آن به رای تعبیر شده محدود می گردد. ولی در مورد قرارها که به اعدادی و نهایی تفکیک می شوند، چون هیچ رویه ثابت و مشخصی در این زمینه در دادگاهها وجود نداشته و همچنین ا...
Executive Summary Livestock in Ethiopia has an important economic, functional, and cultural significance. Various functions of livestock include dairy production, meat production, draught labor and transportation. Economically, livestock production accounts for nearly 80% of farmer income 1 in the country. In addition, livestock serves as a “savings account” or a way of building assets. Cultura...
1.1 introduction “i see translation as the attempt to produce a text so transparent that it does not seem to be translated. a good translation is like a pane of glass. you only notice that it’s there when there are little imperfections- scratches, bubbles. ideally, there shouldn’t be any. it should never call attention to itself.” “norman shapiro” (venuti, 1995:1) edward fitzgerald is the br...
in the first part of this thesis we explored wetting and its dynamics for small droplets. first, we showed how a simple feature of water droplets on a surface, i.e. laplace pressure, can be exploited to build a micropump. we investigated capillary pumping in microchannels both experimentally and numerically. putting two droplets of different sizes at the in/outlet of a microchannel, will ge...
Overgrazing is the key factor that has exacerbated grassland degradation in China’s pastoral regions. Herder’s grazing-based livestock production behavior becomes important to conservation. Several formal environmental institutions and policies exist improve degradation; however, there remain contradicting conclusions regarding contribution of these policies. Informal become major instruments m...
The endangered Barbary macaque (Macaca sylvanus) is the only macaque found wild outside of Asia. Its population has declined by over 50% in the last 23 years with the main threats including habitat loss through logging, overgrazing by livestock, illegal trade and developing negative effects of tourism. The last refuge of this species is in the Middle Atlas Mountains, Morocco. This refuge is bec...
Previous studies of transgenerational plasticity have demonstrated that long-term overgrazing experienced by Leymus chinensis, an ecologically dominant, rhizomatous grass species in eastern Eurasian temperate grassland, significantly affects its clonal growth in subsequent generations. However, there is a dearth of information on the reasons underlying this overgrazing-induced memory effect in ...
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