Stream and riparian health is a major concern for state and federal land management agencies that are charged with oversight of extensive land holdings in the mountain west of the United States. Several federal agencies in the 1980s and 1990s determined that livestock grazing had adversely impacted a majority of federal lands in this region.
To meet carbon emissions targets, more than 30 countries have committed to boosting production of renewable resources from biological materials andconvert them into products such as food, animal feedand bioenergy. In a post-fossil-fuel world, an increasingproportion of chemicals, plastics, textiles, fuels and electricity will have to come from biomass, which takesup land.
It studies the preconditions of creation, functioning of farms in Ukraine and foreign countries. In the course of the study revealed that over the years 1990-2015, the number of farms increased from 332 to 54 302 is 915, 40 thousand hectares of land.
Source: Mapaq
Global trends in pollinatorâdependent crops have raised awareness of the need to support managed and wild bee populations to ensure sustainable crop production.
Analysis of collected data from 2011, in structure of used agricultural land in Serbia shows that dominated plough land and gardens and meadows and pastures, until in smaller percentage are orchards and vineyards.
Wetland stopover use by migratory shorebirds is concurrently influenced by habitat characteristics within a stopover site and characteristics related to the broader context surrounding the stopover site. To conserve wetland habitats essential for shorebird migration through the interior of North America, we need to understand how these dual scales influence stopover use.
Identifying the relative importance of climatic and other environmental controls on the interannual variability and trends in global land surface phenology and greenness is challenging. Firstly, quantifications of land surface phenology and greenness dynamics are impaired by differences between satellite data sets and phenology detection methods.
Tall buttercup is an invasive forb that has been reported in all but eight states and one Canadian province. The species has been of concern in Montana where it has invaded over 8,300 ha, and it has been particularly problematic in irrigated hayfield meadows that are used for forage production.
AIM: Deterministic niche theory predicts that increasing environmental heterogeneity increases species richness.
