Introduce these species into a new area, and they can run rampant, killing native species and interfering with human infrastructure like croplands and water pipes.
Most of the dust problem originates at small-point sources like abandoned croplands outside Phoenix and in northeastern Arizona where decades of coal mining have damaged aquifers and caused dry conditions.
In Bangladesh, this ecosystem has major flora and fauna characteristics which provide abundant ecological resources like local crops, cropland siltation and wild fish.
These relationships reveal that water, like forest and cropland, has a significant effect in mitigating UHIs in Wuhan due to its large spatial extent and homogeneous spatial distribution.
La Mancha's farmers have a strong cultural identity, values, and feelings linked to their local cropland-like landscape.
Like the change in cropland grid cell area, net growth in harvested hectares in countries with low HDI scores is stronger under both scenarios (panel A of Figure 2).
Senate leaders have just begun to write a farm bill, which they say will place greater emphasis on conservation, like paying farmers to return cropland to prairie, which would not violate trade agreements.
The great majority of the 24 existing pastoral areas are already encroached by croplands like in Samorogouan, even if this is understated by state agents.
And irrigated cropland could sometimes be discerned, like pointillism on Nile Delta sand.
The higher reaches of the valley are full of pine, fir, elk and deer, and the lower elevations are flatter, more like the Great Plains, but cold -- marginal cropland.
