Although these results show that diversity of grasslands with regards to soil has probably not changed on the regional scale during the past 100 years, the sheer magnitude of the destruction of grasslands means that those historical grasslands located on finer soils have shrunk to an almost insignificant size—0.4 km 2 compared to 20 km 2 in 1900.
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Regional-scale land-cover change during the 20th century and its consequences for biodiversity.
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