نتایج جستجو برای: grasslands
تعداد نتایج: 6042 فیلتر نتایج به سال:
The Victorian State Government is reserving 15,000 hectares of land to protect native grasslands in to the west of Melbourne, Australia, to be managed by the Department of Environment and Primary Industries (DEPI). The WGR currently contains a mixture of high quality native grasslands, degraded grasslands and non-native vegetation including improved pasture and cropland. Managing these areas fo...
I n t e g r a t e d C r o p M a n a g e m e n t Vol. 9–2010 the designations employed and the presentation of material in this information product do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture organization of the United Nations (FAo) concerning the legal or development status of any country, territory, city or area or of its authorities, or concer...
The global importance of grasslands is indicated by their extent; they comprise some 26% of total land area and 80% of agriculturally productive land. The majority of grasslands are located in tropical developing countries where they are particularly important to the livelihoods of some one billion poor peoples. Grasslands clearly provide the feed base for grazing livestock and thus numerous hi...
QUESTIONS What are the main floristic patterns in the Pannonian and western Pontic steppe grasslands? What are the diagnostic species of the major subdivisions of the class Festuco-Brometea (temperate Euro-Siberian dry and semi-dry grasslands)? LOCATION Carpathian Basin (E Austria, SE Czech Republic, Slovakia, Hungary, Romania, Slovenia, N Croatia and N Serbia), Ukraine, S Poland and the Brya...
Species diversity has declined in ecosystems worldwide as a result of habitat fragmentation, eutrophication, and land-use change. If such decline is to be halted ecological mechanisms that restore or maintain biodiversity are needed. Two long-term field experiments were performed in native grassland to assess the effects of fire, nitrogen addition, and grazing or mowing on plant species diversi...
Yellow starthistle (Centaurea solstitialis L.) is a summer-flowering annual plant of the family Asteraceae, and a significant weed of roadsides, pasture and grasslands in California. It is also distributed, though with less economic and ecological significance, throughout the US and in other temperate parts of the world. Yellow starthistle grows vigorously during the dormant period for most nat...
the effects of dominant shrub species on soil organic matter (som), including total soil carbon (sc), total nitrogen (n) and particulate organic matter (pom) were studied in three stands differing in the type of shrub species, i.e. astragalus microcephalus (shrub), pteropyrum aucheri (shrub) and prangus uloptera (non-shrub).the stands were located in arid grasslands of north-western iran. for t...
(2006). Does sheep-grazing degrade unimproved neutral grasslands managed as pasture in lowland Britain? Systematic Review No. 15.
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