This study used Chongqing, a municipality in mountainous southwest China, and its surrounding areas as case to explore the spatial differentiation of farmland transfer rents areas, with aim serving theoretical practical reference realize value farmland, ensure regional food security, promote stable sound development market. In doing so, we applied GIS analysis method influencing mechanisms area...

The spatial pattern of precipitation is known to be highly dependent on meteorological conditions and relief. However, the relationships between precipitation and topography in mountainous areas are not very well known, partly because of the complex topography in these regions, and partly because of the sparsity of information available to study such relationships in high elevation areas. The p...

background: the distribution and preferences of ticks of animals in central of iran were studied four times a year. methods: one thousand seven tick specimens were collected from different localities including isfahan, chaharmahalbak­htiary, eastazarbaijan, west azerbaijan, kordestan, kermanshah, lorestan and fars. results: most of sampled animals in this area were infested. we also encountered...

b a ckground: a survey on tick species composition was carried out in golestan province iran during year 2010–2011.the aim was to determine tick species parasitizing domestic ruminants and their seasonal population dynamics. methods: a total of 124 sheep, 92 goats, 84 cattle, 74 camels and 12 horses in several villages were inspected for tick infestation. the collected ticks preserved in 70% al...