نتایج جستجو برای: herbaceous rangeland

تعداد نتایج: 6892  

Journal: :Frontiers in Earth Science 2023

In this paper, we analyze the spatiotemporal dynamics of vegetation and its association with climate variables in Borana rangelands southern Ethiopia. Moderate resolution imaging spectroradiometer (MODIS) normalized difference index (NDVI) data, namely, MODIS/TERRA, MOD09Q1 16-day L3 Global 250 m Version 6 from National Aeronautics Space Administration (NASA) United States Geological Survey (US...

Journal: :مرتع و آبخیزداری 0
سیده زهره میردیلمی شناخت مهم ترین تغییر در مؤلفه های کمّی و کیفی پوشش گیاهی بر اثر قرق مراتع دشت کالپوش با استفاده از آنالیز چندمتغیره اسماعیل شیدایی کرکج دانشجوی دکتری علوم مرتع، دانشگاه علوم کشاورزی و منابع طبیعی گرگان موسی اکبرلو دانشیار گروه مرتع داری دانشگاه علوم کشاورزی و منابع طبیعی گرگان

considering the importance of vegetation changes and awareness of its destruction or improvement trends in programming and its proper managing of utilization, this study was conducted in order to survey the effects of grazing on the qualitative and quantitative components of vegetation (including life form, growth form, palatability class, plant families and species diversity) and recognition t...

2005
A. Al-Sheikh K. Barbarick R. Sparks M. Dillon Y. Qian G. Cardon

The potential for wind erosion in South Central Colorado is greatest in the spring, especially after harvesting of crops such as potato (Solanum tuberosum L.) that leave small amounts of crop residue in the surface after harvest. Therefore it is important to implement best management practices that reduce potential wind erosion and that we understand how cropping systems are impacting soil eros...

Journal: :Journal of animal science 2004
D W Bailey

Application of existing and novel management techniques can alter traditional livestock grazing patterns and significantly improve the sustainability of arid rangelands. Livestock often congregate and heavily graze riparian areas and other sensitive rangeland, while abundant forage remains in other areas. Increasing the uniformity of grazing can help protect fisheries, wildlife habitat, and oth...

2009
Cornelis van der Waal Hans de Kroon Willem F. de Boer Ignas M. A. Heitkönig Andrew K. Skidmore Henrik J. de Knegt Frank van Langevelde Sipke E. van Wieren Rina C. Grant Rob Slotow Edward M. Kohi Emmanuel Mwakiwa Herbert H. T. Prins

1. Globally, both climatic patterns and nitrogen deposition rates show directional changes over time. It is uncertain how woody seedlings, which coexist with herbaceous plants in savannas, respond to concurrent changes in water and nutrient availability. 2. We investigated competition effects between herbaceous vegetation and tree seedlings ( Colophospermum mopane ) under changed water and nutr...

Journal: :Revue scientifique et technique 2014
S M Rutter

Although the emerging field of precision livestock farming (PLF) is predominantly associated with intensive animal production, there is increasing interest in applying smart technologies in extensive rangeland systems. Precision livestock farming technologies bring the possibility of closely monitoring the behaviour, liveweight and other parameters of individual animals in free-ranging systems....

2017
Lance W. Robinson Enoch Ontiri Tsegaye Alemu Stephen S. Moiko

Landscape approaches can be subjected to mistakenly targeting a single "best" level of governance, and paying too little attention to the role that cross-scale and cross-level interactions play in governance. In rangeland settings, resources, patterns of use of those resources, and the institutions for managing the resources exist at multiple levels and scales. While the scholarship on commons ...

2009
R. B. Harris

Rangelands of the Qinghai-Tibetan plateau (QTP), although sparsely populated and contributing little to China’s overall economy, play an important environmental role throughout Asia. They contain high biodiversity values and can also potentially provide China with a source of cultural and geographic variety in the future. Chinese government reports paint a gloomy picture, considering vast porti...

2015

Extensive livestock grazing even in unsuitable land has increasingly grown in most parts of semi-arid rangeland. Therefore, it is of paramount importance to identify suitable land for livestock grazing for optimum utilization while causing minimum impact to the environment. This paper adapted the schematic model based on the concepts presented by the Food and Agriculture Organization of suitabi...

2014
Lisa A. Emili Richard P. Greene

In this study, a land use/land cover change analysis method was developed to examine patterns of land use/land cover conversions of cropland to urban uses and conversions of rangeland to cropland uses in the United States (US) Midwest region. We used the US 2001 and 2006 National Land Cover Datasets (NLCD) for our spatial analyses of these conversion trends. Our analysis showed that the eastern...

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