نتایج جستجو برای: arid rangeland
تعداد نتایج: 21136 فیلتر نتایج به سال:
the study of soil seed bank provides useful information on management and restoration of natural ecosystems. in the arid environments, some perennial plants may cause accumulation of seed bank under their canopy, thereby protecting them against the livestock herbivory and the other environmental factors. this study was conducted with objective to investigate effect of perennial plants on densit...
Background and objectives: Regular preparation of good quality forage and proper diet leads to cost-effective production of milk and meat. In Iran, insufficient supply and insufficient access to forage, as well as unbalanced consumption diets are the main limitations that negatively affect the ability to produce buffalo and therefore lead to uneconomical breeding of this animal. To overcome the...
Rangeland monitoring aims to determine whether grazing management strategies meet the goals of sustainable resource utilization. The development requires an understanding manner in which animals utilize available vegetation. In this study, we made use livestock tracking, situ observations and Sentinel-2 imagery make rangeland scale vegetation conditions a semi-arid environment, better understan...
The importance of accurately monitoring rangeland degradation dynamics over decades is increasing in Linxia rangeland, the birthplace of the Yellow River in China. Since 2000, the Chinese government has implemented the “Grain for Green” program and enforced a grazing ban in Gansu province, one of the most degraded provinces, to mitigate the problem of rangeland degradation. The effects of these...
Drought is a normal, recurring feature of climate phenomena; it may occur virtually in all climatic regions. The effects of drought accumulate slowly and its impacts are spread over a larger geographical area than other natural hazards. Drought is a natural hazard originating from a deficiency of precipitation that result in a water shortage for some activities or some groups and is often assoc...
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