نتایج جستجو برای: nodooshan rangeland of yazd

تعداد نتایج: 21164551  

1998
STEVE ARCHER DAVID A. PYKE

The role of ungulate grazing in shaping rangeland ecosystems is well known relative to other important plant-animal interactions such as pollination, seed dispersal, granivory, and belowground herbivory. Successful rangeland revegetation may be enhanced by strategies that favor certain groups of animals and discourage others. Many perennial forbs and shrubs require animals for successful pollin...

Journal: :مرتع و آبخیزداری 0
مهدی قربانی استادیار دانشکده منابع طبیعی، دانشگاه تهران، ایران. حسین آذرنیوند استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران. علی اکبر مهرابی استاد گروه آبخیزداری، دانشگاه آزاد اسلامی واحد علوم و تحقیقات، ایران سوسن باستانی دانشیار دانشکده علوم اجتماعی و اقتصادی، دانشگاه الزهرا، ایران. محمد جعفری استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران. هوشنگ نایبی دانشیار دانشکده علوم اجتماعی، دانشگاه تهران، ایران.

since last decades, there has been a growing interest in the human/social dimensions of natural resources governance especially the structure of social networks in achieving to successful co-management of natural resources. network analysis as a suitable tool in optimum planning of the “network management” of rangeland in regional scale, can improve inter-organizational decision-making and coor...

2012
Wenjun Li Yanbo Li

The complexity of natural resource management is increasingly recognized and requires adaptive governance at multiple levels. It is particularly significant to explore the impacts of government interventions on the management practices of local communities and on target social-ecological systems. The Inner Mongolian rangeland was traditionally managed by indigenous people using their own instit...

2013
Devan Allen McGranahan David M. Engle Samuel D. Fuhlendorf Stephen L. Winter James R. Miller Diane M. Debinski

Conservation policy often incentivizes managers of human-impacted areas to create landscape heterogeneity to maximize biodiversity. In rangeland, patchy disturbance regimes create landscape heterogeneity (patch contrast), but outcomes of heterogeneity-based management are rarely tested for a universal response. We analyzed four habitat variables – vegetation structure, plant functional group co...

2012
G. Okay P. Leroy A. Ghorbani P. Cosenza

1 UMR 7619 Sisyphe, Université de Pierre et Marie Curie, Paris, France 2 French Institute of Radioprotection and Nuclear Safety, Fontenay-aux-Roses, France 3 BRGM, French Geological Survey, Orléans, France 4 Department of Mining and Metallurgy, Yazd University, Yazd, Iran 5 Institute of Geophysics, University of Lausanne, Lausanne, Suisse 6 UMR 6269 HydrASA, ENSIP, Université de Poitiers, Poiti...

Journal: Desert 2014

Owing to the importance and necessity of identifying soil properties in arid rangeland management, and the variableeffects of different kinds of herbivores on soil, this study compares some of the physical and chemical properties ofsoil between two regions experiencing livestock and wildlife grazing in the desert rangelands of Kalmand-Bahadoranin Yazd province. The key areas in two regions expe...

2017
Fatemeh Akyash Fatemeh Sadeghian-Nodoushan Somayyeh Sadat Tahajjodi Habib Nikukar Ehsan Farashahi Yazd Mostafa Azimzadeh Harry D. Moore Behrouz Aflatoonian

This report explains briefly the minutes of a 1-day workshop entitled; "human embryonic stem cells (hESCs) and good manufacturing practice (GMP)" held by Stem Cell Biology Research Center based in Yazd Reproductive Sciences Institute at Shahid Sadoughi University of Medical Sciences, Yazd, Iran on 27th April 2017. In this workshop, in addition to the practical sessions, Prof. Harry D. Moore fro...

Determining the allowable use of key species in rangelands of Iran is necessary to range management. Despite of the importance of the subject, little information is available in this regard. The aim of this study was to investigate the response of plants to harvest intensities in order to determine the allowable use of the key species of steppe rangelands. Two key species, Artemisia sieberi and...

Journal: :Ecological applications : a publication of the Ecological Society of America 2007
Julia A Klein John Harte Xin-Quan Zhao

We investigated experimental warming and simulated grazing (clipping) effects on rangeland quality, as indicated by vegetation production and nutritive quality, in winter-grazed meadows and summer-grazed shrublands on the Tibetan Plateau, a rangeland system experiencing climatic and pastoral land use changes. Warming decreased total aboveground net primary productivity (ANPP) by 40 g x m(-2) x ...

Adverse changes in rangeland vegetation can be considered as one of the criteria for land degradation. Some of these changes can be evaluated through monitoring the spatial changes of landscape parameters. This study aimed to investigate the landscape changes in Kezab rangelands of Yazd province, central Iran. Landsat satellite images of 1990, 2002, and 2013, and landscape metrics including Tot...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید