نتایج جستجو برای: rangeland conditions

تعداد نتایج: 850460  

1998
DAVID A. PYKE

Restoration and revegetattion of rangeland ecosystems is based on knowledge of abiotic and biotic interactions that affect plant establishment. Once plants become autotropbic, interactions within and between plant species may occur and these interactions may range from antagonistic to mutualistic. This full range of potential interactions needs to be considered to ensure successful revegetation...

2014
Anita K. Smyth Elizabeth Smee Stephanie S. Godfrey Mathew Crowther David Phalen

Agricultural practices, including habitat alteration and application of agricultural chemicals, can impact wildlife resulting in their decline. Determining which of these practices are contributing to declines is essential if the declines are to be reversed. In this study, the health of two geographically separated sleepy lizard (Tiliqua rugosa) populations was compared between a rangeland envi...

Journal: :مرتع و آبخیزداری 0
محمد جنگجو دانشیار گروه مرتع و آبخیزداری، دانشکده منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد، ایران. فریبا نوعدوست عضو هیات علمی گروه زیست¬شناسی، دانشکده علوم، دانشگاه صنعتی خاتم¬الانبیاء، ایران.

ecological studies on range plants enhance our knowledge on the rangeland ecosystems which are useful for their planning and management.  by doing field and laboratory experiments during 2008-2009, ecological conditions were studied in the main habitats of z. atriplicoides in the rural and winter rangelands of northern khorasan province (nkp). forage quality was also studied at different phonol...

Journal: : 2022

Analysis of Barriers and Challenges Rangeland Management (Case Study: Rangelands Kermanshah province)

ژورنال: علوم آب و خاک 2012
فایز رئیسی, , مریم ریاحی, ,

Mountainous landscapes in Central Zagros are mainly used as grazing rangelands to feed animals and are heavily degraded. Overgrazing may impose a negative effect on rangeland productivity and sustainability through significant changes in soil properties. Soil nitrogen (N) mineralization is one of the key biological processes that might be affected by biotic and abiotic factors including range g...

Abdol Reza Bahremand Adel Sepehry Ahmad Abedi Servestani Ali Reza Massah Bavani Amir Saadatfar, Hossein Barani

Rangelands are one of the most vulnerable parts concerning the climatechanges‟ impacts. These impacts are even stronger in the arid and semi-arid areas whererangeland ecosystems are in critical conditions. Therefore, it is crucial to figure out theactual dynamics of climate variations on the rangelands. The aim of this research was todetermine climate changes in Khabr rangeland, Kerman, Iran. S...

Journal: :journal of rangeland science 2013
ezatollah moradi gholam ali heshmati ali hosein bahramian

rangeland health assessment provides qualitative information on ecosystemattributes. we examined changes in rangeland health in the zagros semi-arid rangelands ofiran at fixed sites between 2001 and 2011, over the 10-year period. the rangelandfragments significantly declines in the quality of the vegetation, and changes in plantspecies were driven largely by seasonality, and to a lesser extent,...

ژورنال: مرتع 2022
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Background and objectives: Climate change has been a serious issue in the last two decades and many studies have focused on its various aspects. Therefore, it is necessary to determine the future habitat of rangeland species present and future years, under climate warning models. In this regard, it should be investigated whether the increase in temperature will have a positive effect on the pre...

2009
D. Terrance Booth Paul T. Tueller D. TERRANCE BOOTH PAUL T. TUELLER

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