<p>Canopy cover (CC) and the aboveground net primary production (ANPP) vary under influence of various environmental factors. They underscore ecological sustainability different environment-human interactions. Towards this, present study aimed to model CC ANPP plant functional types (PFTs) their total using soil attributes in northwest (Ardabil province) rangelands Iran. According ecoregi...

In the rangelands of Iran, the lack of appropriate grazing management is one of the major problems ultimately leading to untimely and excessive grazing intensity of forage. Accordingly, most of the rangelands show a retrogression trend and poor conditions. In forage species, phenological stage is one of the most important criteria for range management. Bromus tomentellus species is an ...

Accurate evaluation of healthcare information systems (HCIS) relies upon the choice of appropriate indicators. Iranian healthcare and health industry professionals were surveyed, by means of a descriptive cross sectional study, in order to identify the indicators they considered most relevant to the evaluation of healthcare information systems currently in use in Iran. It was concluded that eff...

Rangelands of China have for centuries provided forage for livestock but now their role in water, soil, and biodiversity conservation is being recognised by Governments and people. However, much of the rangelands has recently degraded anddesertification is nowawidespread problem.The cause of the degradation is over-grazing andover-cultivation. Climate change is exacerbating theproblem.TheChines...

In previous papers we have considered the optimal mix of biodiversity in semi-arid rangelands, focusing on the steady state. This paper addresses the question of conservation in the optimal use of rangelands, where conservation is understood to mean maintenance of the system in a ‘natural’ state. We consider a rangeland that may exist in one of two states. In the ‘natural’ state, its dynamics a...

Soil degradation induced by gully erosion represents a worldwide problem in the many arid and semi-arid countries, such as Iran. This study assessed: (1) importance of variables that control using Boruta algorithm, (2) relationship among causative gullied locations evidential belief function model (EBF), (3) development algorithms boosted regression tree (BRT) support vector machine (SVM). Base...

during conduction a survey of entomopathogenic nematodes throughout arasbaran forests and rangelands, north west of iran in 2007-2008, an entomopathogenic nematode was isolated using galleria baiting method from soil samples collected from rangelands, near chichakloo, varzeghan, east azarbaijan. it was identified as steinernema kraussei (steiner, 1923) travassos, 1927 based on morphology and mo...