نتایج جستجو برای: short time exclosure

تعداد نتایج: 2216279  

Journal: :Journal of Japanese Society for Dialysis Therapy 1988

Journal: :Journal of Physics A: Mathematical and General 1997

Journal: :journal of rangeland science 2011
m. mahdavi h. arzani m. mesdaghi kh. mahdavi j. mahmodi

since renaissance, the natural ecosystems have fallen into a complete state ofdisarray due to the rise in the amount of carbon dioxide. soil, the unsparing stuff, is one of themajor sources of carbon storage, and plays a paramount role in the global equilibrium ofcarbon as well as carbon sequestration. given that iran is benefiting from vast steppes, therate of carbon sequestration in them dese...

2007
Paul G. Scowcroft

Natural regeneration is one mechanism by which native rnixedspecies forests become reestablished on abandoned pasture. This study was done to determine patterns of and requirement for natural regeneration of native species in an open woodland after removal of cattle. Ten 50by 50-m quadrats were randomly selected within a 16-ha exclosure located at 1,700-m elevation inside the Hakalau Forest Nat...

ژورنال: علوم آب و خاک 2005
مهدی بصیری, , فاضل امیری, , مجید ایروانی, ,

The vast and diverse rangelands of Iran require the selection of appropriate methods for grazing intensity measurement in the different vegetation types. Methods can be compared on the bases of time and budget as well as their accuracy. In this study nine methods of the utilization measurement were conducted on the E. ceratoides stands of Hanna exclosure Semirom, Isfahan province. The duncan mu...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید