Effects of fire on rangeland vegetation in south-western Mendoza plains (Argentina): composition,frequency, biomass,productivity and carrying capacity |
| |
| Institution: | 1. PhD candidate, Department of Animal and Range Sciences, New Mexico State University, Las Cruces, NM 88003, USA;2. Associate Professor, Department of Animal and Range Sciences, New Mexico State University, Las Cruces, NM 88003, USA;5. Professor, Department of Animal and Range Sciences, New Mexico State University, Las Cruces, NM 88003, USA;3. PhD student, Department of Computer Science, New Mexico State University, Las Cruces, NM 88003, USA;4. Assistant Professor, Department of Computer Science, New Mexico State University, Las Cruces, NM 88003, USA;1. Rangeland Scientist, University of Eskisehir Osmangazi, Eskisehir, Turkey;2. Rangeland Scientist, University of Nebraska-Lincoln, Lincoln, NE 68583-0915, USA;3. Rangeland Scientist, University of Ataturk, Erzurum, Turkey |
| |
| Abstract: | The effect of both a non-prescribed summer fire and grazing at high stocking rate following fire on plant community composition, the frequency of occurrence of bare soil, grasses and shrubs, species diversity and biomass of herbaceous forage were evaluated for three growing seasons after fire. Changes in community composition occurred as a consequence of both fire and grazing. Communities were dominated by unpalatable shrubs and grasses in unburned sites as a result of a long history of overgrazing. Fire contributed to a conversion of those shrublands to communities with a more favourable balance between woody and herbaceous species. The frequency of palatable grasses and herbaceous forage biomass increased by a factor ofc. 3 at the expense of woody vegetation. Grazing after fire had significant positive (i.e. decrease in undesirable grasses) and negative (i.e. increase in bare soil) effects. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
