نتایج جستجو برای: herbaceous rangeland
تعداد نتایج: 6892 فیلتر نتایج به سال:
Analysis of Barriers and Challenges Rangeland Management (Case Study: Rangelands Kermanshah province)
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,...
the occurrence of blindness after drinking some herbaceous distillates is created some anxieties in iran. in this study, the effectiveness of concentration of khalvash distillate was studied on the function of the new modified suggested chromotropic acid method for qualitative detection of methanol. for this purpose, three samples of khalvash distillate were purchased from vendors of rasht. acc...
plants re-emit a substantial fraction of their assimilated carbon into the atmosphere as biogenic volatile organic compound. according to the presence of relatively high amount of methanol in herbal distillates, finding different concentrations of ethanol in such drinks is expectable, as several studies appeared that produced ethanol by plants emits into the atmosphere as do methanol. in this s...
Visual obstruction as a method to quantify herbaceous biomass in southern African semi-arid savannas
Visual obstruction as a method to quantify herbaceous biomass in southern African semi-arid savannas Dave Joubert, Larkin A Powell & Walter H Schacht To cite this article: Dave Joubert, Larkin A Powell & Walter H Schacht (2015) Visual obstruction as a method to quantify herbaceous biomass in southern African semi-arid savannas, African Journal of Range & Forage Science, 32:3, 225-230, DOI: 10.2...
This paper explores the benefits of competition control treatments in establishing plantations now and into the next rotation, -More is known about the economic outcome of woody control treatments than about herbaceous. control; thus, the former are given the most attention. But the early growth benefits of herbaceous weed control treatments are also reviewed, with the appropriate application m...
Managing forests for multiple ecosystem services such as timber, carbon, and biodiversity requires information on ecosystem structure and management characteristics. National forest inventory data are increasingly being used to quantify ecosystem services, but they mostly provide timber management and overstory data, while data on understory shrub and herbaceous diversity are limited. We obtain...
Adaptive management is an approach to natural resource management that uses structured learning to reduce uncertainties for the improvement of management over time. The origins of adaptive management are linked to ideas of resilience theory and complex systems. Rangeland management is particularly well suited for the application of adaptive management, having sufficient controllability and redu...
carbon sequestration in rangeland ecosystems has been identified as a suitable strategy to offset greenhouse gas emissions that information of carbon sequestration hotspots is a good tool to improve rangeland management. objectives for this study were to assessment potential carbon sequestration in various rangeland types, to identify carbon sequestration hotspots and to study the effective fact...
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