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- Milchunas, Daniel G., et al. Show all 3 Authors
- Rangeland ecology & management 2010 v.63 no.3 pp. 317
- steppes; grazing; range management; prescribed burning; dry matter accumulation; growing season; soil water content; nitrogen; nutrient availability; soil fertility; temporal variation; in vitro digestibility; forage grasses; forage; dormancy; stocking rate; Colorado
- ... We examined the independent and combined effects of prescribed fire and livestock grazing on herbaceous plant production in shortgrass steppe of northeastern Colorado in the North American Great Plains. Burning was implemented in March, before the onset of the growing season. During the first postburn growing season, burning had no influence on soil moisture, nor did it affect soil nitrogen (N) av ...
- Milchunas, Daniel G., et al. Show all 5 Authors
- Proceedings of the National Academy of Sciences of the United States of America 2007 v.104 no.37 pp. 14724
- elevated atmospheric gases; carbon dioxide; grasslands; steppes; plant ecology; community structure; shrubs; grasses; plant growth; environmental impact; community ecology; species diversity; vegetation cover; dry matter accumulation; Artemisia frigida; semiarid zones; botanical composition; Colorado
- ... A hypothesis has been advanced that the incursion of woody plants into world grasslands over the past two centuries has been driven in part by increasing carbon dioxide concentration, [CO₂], in Earth's atmosphere. Unlike the warm season forage grasses they are displacing, woody plants have a photosynthetic metabolism and carbon allocation patterns that are responsive to CO₂, and many have tap root ...
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