نتایج جستجو برای: range species

تعداد نتایج: 1168072  

Journal: :Frontiers in Marine Science 2021

Advancing our understanding of how environmental variability affects the distribution organisms is crucial for ecology and conservation. The exploration changes in demographic patterns close to species margins important as populations here may provide a window into future population also elsewhere. However, knowledge factors causing recruitment variation still inadequate many systems this defic...

Journal: :Applied and Environmental Microbiology 2019

Biomass is a key factor in dynamics evaluation of ecosystems, biodiversity level and their stability. Biomass measurement is performed every year to evaluate range ecosystems (investigating the trend of changes), range management (suitable browsing systems) and cover assessment in rangelands. As direct biomass measurement is time-consuming, has costs and destroy rangelands non-destructive metho...

Objective: Ecosystems with mixed species compared to the ones with pure compositions provide a broader range of options in the fields of biodiversity, conservation, protection and restoration. Nearly all forest plantations are established as monocultures, but research has shown that there are potential advantages to be gained by using carefully designed species mixtures in place of monocultures...

Journal: Desert 2020
A.A. Jamali M. Akbarzadeh S. Zarekia,

     Forage production of rangelands differs during different times of grazing season and in the same month of different years. In range management projects, grazing capacity calculated once during the grazing season, which coincides with the maximum production of rangeland species. This may cause more livestock entry into the rangeland during the grazing season, leading to more degradation. Th...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید