Secondary salinity caused by rising saline groundwater due to the clearing of land for agriculture has caused serious loss of productive land in Western Australia. In 1989, the Australian Bureau of Statistics conducted a survey of farmers which reported that 443 441 ha or 2.83 percent of the 15.7 million ha of cleared land in south-western Australia was saline. A further survey in 1994 showed t...

This paper demonstrates how the power form of the Species–Area Relationship (SAR) can be used to set conservation targets for land classes using biodiversity survey data. The log-transformation of the power model is a straight line; therefore, if one knows the average number of species recorded per survey site and can estimate the true species number present in the land class, using EstimateS s...

An intensive survey was conducted on HNZ land, a subsidiary of Hunt Inc., which owns the mineral rights to land located adjacent to the Petrified Forest National Park, Arizona, United States. The purpose of the survey was to log the position and characteristics of petrified wood to better protect the fossils from thieves and to assess the value of Hunt lands. A monetary value was assigned to ea...

—The North American Breeding Bird Survey (BBS) is an annual transect point-count survey of >500 species and >3,500 survey routes (transects). Observers drive and record birds seen and heard within a radius of 400 m of 50 survey points (“stops”) evenly spaced along a 39.4-km survey route. Thus, the land area along both sides of a route composes a linear or curvilinear landscape. Although BBS dat...

T he Purdue land values survey revealed a statewide increase of 3.2% in the value of average-quality bare tillable land in the year ending in June 1992, about double the tiny increase of 1991-92. The USDA estimate for the year ending January 1 was 5%. The Federal Reserve Bank of Chicago survey of bankers indicated a 4% increase for the year ending March 31 in “good” farmland in the northern two...