نتایج جستجو برای: overgrazing

تعداد نتایج: 517  

Abdolreza Bahremand Adel Sepehri Hossein Barani Manijeh Tavan Seid Ali Hoseini

Infiltration rate of water into the soil depends on the factors such as rock and litter cover, canopy cover, rainfall intensity, coarse material, land slope, soil texture and amount of initial soil moisture. The most important factors that are effective in the water infiltration rate of rangelands are livestock trampling and vegetation reduction due to the overgrazing. In present study, through...

ژورنال: علوم آب و خاک 2008
شیروانیان, عبدالرسول, حق شناس, تیمور , نجفی, بهاءالدین ,

In the process of agricultural development, sustainability of pasture utilization to ensure sustained production of meat and dairy products has become increasingly important. This article aims to study factors affecting pasture and meat production imbalances in Fars province. For this purpose, the transcendental production function was used. Data was collected by using two stage cluster random ...

Journal: :Nonlinear Dynamics 2022

In this paper, based on a guanaco–sheep competitive system, we develop and analyze mathematical models with unilateral bilateral control for the management of overgrazing. We first dynamics uncontrolled system. It then follows analysis system impulsive by differential equation geometry theory. mainly prove existence stability order-1 periodic solution order-2 Some numerical simulations includin...

2014
Qian Wang Yan Huang Liang Huang Wenjie Yu Wei He Bo Zhong Wei Li Xiangman Zeng Dominique A Vuitton Patrick Giraudoux Philip S Craig Weiping Wu

OBJECTIVE Echinococcosis is a major parasitic zoonosis of public health importance in western China. In 2004, the Chinese Ministry of Health estimated that 380,000 people had the disease in the region. The Qinghai-Tibet Plateau is highly co-endemic with both alveolar echinococcosis (AE) and cystic echinococcosis (CE). In the past years, the Chinese government has been increasing the financial s...

2015
Xiliang Li Zhiying Liu Zhen Wang Xinhong Wu Xinle Li Jing Hu Hongxiao Shi Fenghui Guo Yong Zhang Xiangyang Hou

Natural grassland productivity, which is based on an individual plant's aboveground biomass (AB) and its interaction with herbivores, can obviously affect terrestrial ecosystem services and the grassland's agricultural production. As plant traits have been linked to both AB and ecosystem success, they may provide a useful approach to understand the changes in individual plants and grassland pro...

P. G. Saptarshi S. W. Gaikwad T. H. Jaweed

The superficial strata of ground have been perennially exposed to the action of natural agents such as heat, cold and water. However, grazing agent was not different from them when soils were investigated from temperate rangelands of Kashmir and caused the soil compaction, soil structure degradation and loss of soil organic C and C/N ratio. Soils from three grazing intensities were investigated...

Journal: :Frontiers in Environmental Science 2022

The soil–vegetation relationships are reciprocal and fundamental for terrestrial ecosystem integrity. However, the long-term degradation of vegetation cover alters edaphic conditions, which can lead to habitats, obstructs proper functioning. This study aimed assess effects perennial steppe due overgrazing (i.e., continuous free grazing) on physicochemical characteristics soil fertility in range...

Journal: :Sustainability 2021

The Nyangatom, in South Omo, Ethiopia, are a group of agro-pastoralists whose access to land is affected by large-scale sugarcane development projects. An informed selection appropriate livestock management measures local communities requires spatially explicit representation prevailing and changing supply–demand relationships for herds among the Nyangatom. This study addresses this caveat iden...

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