As of 1997, 4.3percentt of total land was development, up from 3.2 in 1982.
That's troubling given that it is already responsible for between 50% and 80% of total land, material, and water use.
Salt-affected soils are extensively present and constitute about 7% of total land surface.
U.S. farmers planted about 169 million acres of these GE crops in 2013, or about half of total land used to grow crops.
Argialbolls comprise 18,078 km2 in the USA (0.02% of total land area), 70% of which occur in North Dakota, South Dakota, Missouri, and Iowa.
These grasslands occupy a relatively small fraction (17.5%) of total land area within the study watershed, but are important to regional biogeochemistry and are highly valued by humans.
About 35% of total land area in the town has been protected, and botanists, including Thoreau, have surveyed plants in Concord five times over the last 170 years.
In Vietnam soil erosion is a major environmental problem with respect to soil fertility, water quality and downstream property damages and involves 40% of total land surface.
They boast of greater productivity, without compromising natural habitats (the percentage of total land used for agricultural has remained constant at 45% since 2000 in the US, according to the World Bank) or endangering public health.
The first of these variables measures cross-country differences in agricultural land as a percentage of total land, while the second codifies disparities in agricultural raw material exports as a percentage of merchandising exports.
Overall, agriculture accounts for 70% of global freshwater consumption, 38% of total land use and 19% of the world's greenhouse gas emissions; within this, the footprint of meat and dairy production is heavily disproportionate.
