نتایج جستجو برای: tolerance to grazing

تعداد نتایج: 10646507  

Journal: :Frontiers in Ecology and Evolution 2021

Plant functional traits reflect species ecological strategies and determine how plants respond to environmental changes, however, dominant in the Inner Mongolia grassland adapt different grazing systems by changing their has not been systematically investigated. In this study, we established four 7-year treatments grassland: cattle grazing, sheep mixed no grazing. Fourteen of three ( Stipa gran...

Grazing of Livestock is one of the factors having influence on the structure and dynamics of the range land vegetation. Grazing management is a vital factor to control the intensity of the rangeland ecosystems degradation. In this study, plant functional traits and diversity and richness properties were used to assess the vegetation response to different grazing intensities. This was done in No...

ژورنال: علوم آب و خاک 2013
زهرا کیانی سلمی, , شجاع قربانی دشتکی, , فایز رئیسی گهروئی , , نجمه قربانی قهفرخی, ,

Free and uncontrolled pasture grazing by animals may decrease soil aggregate stability through reductions in plant cover and subsequent soil organic C, and trampling. This could expose the soil surface layer to degradation and erosion. The objective of this study was to determine the influence of pasture management (free grazing, controlled grazing and long-term non-grazing regimes) on aggregat...

Journal: :Ecology 2007
D A Fornara J T Du Toit

We measured browsing-induced responses of Acacia trees to investigate "browsing lawns" as an analogy to grazing lawns in a semiarid eutrophic African savanna. During the two-year field study, we measured plant tolerance, resistance, and phenological traits, while comparing variation in leaf nitrogen and specific leaf area (SLA) across stands of Acacia nigrescens, Miller, that had experienced ma...

ژورنال: مرتع 2021
Akbarloo, Moosa, Barani, Hossein, Darvishi, Leila, Ghelichnia, Hassan,

Attention to the quality and quantity of forage plants, palatability and species preference, are among the information needed to properly manage pasture grazing. One of the prominent plants in the Nour Rud rangelands are Allium spp plants that have an acceptable distribution in the area. For the sake of the study, the preferred value of different species of Allium’s for Shal sheep with an avera...

Journal: :journal of rangeland science 2011
e. fakhimi m. mesdaghi gh.a. dianati tilaki m. tavan

grazing management plays an important role in the continuous and economicutilization of pastures. proper grazing management is a main factor for the accumulation ofplant litter which reduces soil erosion and increase the soil permeability to keep moremoisture in the soil. in current study, the effect of three different grazing intensities (low,moderate and high) along with the grazing gradient ...

Adel Sepehry Hossein Barani Mohsen Sharafatmandrad,

In arid and semi-arid rangelands, grazing as one of the natural or human induced processes has direct and indirect effects on structure and dynamics of plant community and ecosystems. A study was done to analyze the effects of grazing on plant species diversity and Plant Functional Types‘ (PFTs) diversity of arid and semi-arid rangelands. We analyzed plant richness and diversity data from 75 sa...

Journal: :Journal of Ecology 2021

Abstract Plants minimize fitness losses through grazing by three fundamental strategies: tolerance, avoidance and escape. Annual species have been traditionally assumed to escape their short life cycle seed dormancy; however, response strategies remain almost unexplored. How traits coordination affect species' responses, whether the generalized model, which posits convergent filtering drought, ...

Journal: :مرتع و آبخیزداری 0
محمد فیاض عضو هیئت علمی مؤسسة تحقیقات جنگل‏ها و مراتع تهران حسین پیری صحراگرد دانشجوی دکتری مرتع داری دانشگاه تهران حسن یگانه دانشجوی دکتری مرتع داری دانشگاه تهران انور سور دانشجوی دکتری مرتع داری دانشگاه تهران میر طاهر قائمی عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان آذربایجان غربی

having a comprehensive and correct understanding of grazing behaviour of livestock helps to maximize livestock products. moreover, a good understanding of livestock behavior allows us to predict the effects of livestock on rangeland and finally we can do livestock grazing management the best possible. recognition of grazing behavior of animals can provide solutions enables the optimal use of ra...

Journal: :desert 0
gh.a. dianati tilaki assistant professor, faculty of natural resource & marine sciences, tarbiat modares university a.a naghipour borj m.sc.student, faculty of natural resource & marine sciences, tarbiat modares university h. tavakoli staff member, khorasan agricultural and natural resources research center m. haidarian aghakhani m.sc.student, faculty of natural resource & marine sciences, tarbiat modares university

abstract over the last fifty years, most of the semi-arid rangeland in iran has been converted to cropland without an equivalent reduction in grazing animals. this shift has led to heavy grazing pressure on rangeland vegetation. the present study has been conducted in sisab research station in the north khorasan province to evaluate effects of long-term grazing exclosures on biodiversity of ran...

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