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Showing items 27919 through 27927 of 73561.Non-point source simulation models are commonly used tools for examining water and water quality issues.
O presente artigo tem como objetivo verificar, a partir dos dados do Censo Agropecuário de 2006, se nos últimos anos ocorreu uma intensificação das transformações estruturais da agropecuária paranaense, em curso desde meado da década de 1970.
Reforestation of saline sodic soil is increasingly undertaken as a means of reclaiming otherwise unproductive agricultural land. Currently, restoration of degraded land is limited to species with high tolerances of salinity.
Spanish mountains have been affected by the expansion of shrubs and forests since the mid‐20th century.
This study presents an approach to analyzing decentralized forestry and naturalresource management and land property rights issues, and catalyzing collectiveaction among villages and district governments.
Investigations were made of plant and soil responses to severe degradation through heavy grazing and browsing in arid, succulent, subtropical thicket.
The crowned sifaka (Propithecus coronatus) and Decken's sifaka (Propithecus deckenii) are Endangered lemurs endemic to west and central Madagascar. Both have suffered habitat loss and fragmentation throughout their ranges.
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