نتایج جستجو برای: fars province four land uses destroyed rangeland

تعداد نتایج: 1038919  

2013
Rebecca Chaplin-Kramer Melvin R. George

The San Francisco Bay Area in California, USA is a highly heterogeneous region in climate, topography, and habitats, as well as in its political and economic interests. Successful conservation strategies must consider various current and future competing demands for the land, and should pay special attention to livestock grazing, the dominant non-urban land-use. The main objective of this study...

2012
Fred Nelson

The land management practices of pastoralist Maasai communities have a major bearing on landscapes and wildlife habitats in northern Tanzania and play a key role in maintaining habitat for one of the world's most spectacular assemblages of terrestrial large mammals. Pastoralists manage lands according to locally devised rules designed to manage and conserve key resources such as pastures and wa...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
مریم السادات تاجر دانشگاه تربیت مدرس، ترویج و آموزش کشاورزی غلامرضا پزشکی راد دانشگاه تربیت مدرس، ترویج و آموزش کشاورزی کورش رضایی مقدم دانشکده کشاورزی دانشگاه شیراز، ترویج و آموزش کشاورزی

many new technologies have been employed to improve welfare conditions and to provide an optimum utilization of the existing resources in agriculture sector. laser leveling technology is one of the most progressed in maintenance of soil and water resources which itself has an important role in sustainable development. the purpose of this study was to realize the specifications of adopters vs. n...

Journal: :Avicenna Journal of Dental Research 2013

2015
Kara Allen Marife D. Corre Aiyen Tjoa Edzo Veldkamp

Rapid deforestation in Sumatra, Indonesia is presently occurring due to the expansion of palm oil and rubber production, fueled by an increasing global demand. Our study aimed to assess changes in soil-N cycling rates with conversion of forest to oil palm (Elaeis guineensis) and rubber (Hevea brasiliensis) plantations. In Jambi Province, Sumatra, Indonesia, we selected two soil landscapes - loa...

Journal: :دانش آب و خاک 0
مهناز بازوبندی دانشجوی کارشناسی ارشد بیابان زدایی، دانشکده کویرشناسی، دانشگاه سمنان محمد رحیمی استادیار دانشکده کویرشناسی، دانشگاه سمنان آرش ملکیان دانشیار دانشکده منابع طبیعی، دانشگاه تهران سعید قره چلو استادیار دانشکده کویرشناسی، دانشگاه سمنان سید علی اصغر هاشمی استادیار مرکز تحقیقات منابع طبیعی استان سمنان

land use optimization is one of the appropriate methods for soil conservation which helps decision makers and watershed planners in order to make the optimum decision among different land uses. the main objective of this research was to find the optimum area of each land use to reduce soil erosion rate as well as to increase the income of stakeholders in golroudbar watershed located in semnan p...

More than one-third of the earth is characterized by arid and semi-arid climate and desertification phenomenon in these areas has been intensified in recent decades. This study aims to investigate the trend of desertification using vegetation indices and Iranian Model of Desertification Potential Assessment (IMDPA) in Abarkooh Plain, Yazd province, Iran. The satellite images (Landsat images in ...

Journal: :journal of rangeland science 2014
ali mahdavi mojtaba jamshidifard

to determine the potential habitat of two rangeland species of salsola rigidaand agropyron trichophorum in qasr-e-shirin, iran, geographic information systems(gis) and remote sensing (rs) techniques were used. at first, several maps (vegetationcover and land uses maps and thematic maps of various organizations) were collected orprepared. for digitizing geology, vegetation and conventional state...

Journal: :Journal of insect biodiversity and systematics 2021

Diversity and abundance of the sawfly (Hymenoptera: Symphyta) community in Darab rain-fed damask rose plain, Fars province, southwestern Iran

2009
Temuulen Tsagaan Sankey Keith T. Weber

Extensive livestock production has been Mongolia’s major industry for centuries and traditional nomadic herding lifestyle and Mongolia’s expansive rangelands sustain this industry. After the democratic election and economic liberalization in 1992, formerly state-owned collectives were disbanded and Mongolia’s livestock population was privatized. There was no longer a state institution to formal...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید