منابع مشابه
Herbage Response to Sagebrush Spraying
Information that is presently available makes chemical control of sagebrush (Artemisia’ tridentata) a practical operation. Yet additional information is needed regarding ecological responses to assure that the practice of spraying for sagebrush control will be used wisely. The economy of brush control must be determined by the amount of forage and meat products gained; however, the principal ob...
متن کاملCover Letter in Response to Reviewer
what is meant by: "received the mandate to carry out testing to monitor the effectiveness of HAART" We have now modified this to make the point clearer. The text is modified in both the Abstract and the Background and reads: Access to highly active antiretroviral therapy (HAART) expanded between 2004-2006 and the Peruvian National Institute of Health was named by the Ministry of Health as the i...
متن کاملEffects of Land Cover and Regional Climate Variations on Long-Term Spatiotemporal Changes in Sagebrush Ecosystems
This research investigated the effects of climate and land cover change on variation in sagebrush ecosystems. We combined information of multi-year sagebrush distribution derived from multitemporal remote sensing imagery and climate data to study the variation patterns of sagebrush ecosystems under different potential disturbances. We found that less than 40% of sagebrush ecosystem changes invo...
متن کاملMeasuring plant cover in sagebrush steppe rangelands: a comparison of methods.
Methods that are more cost-effective and objective are needed to detect important vegetation change within acceptable error rates. The objective of this research was to compare visual estimation to three new methods for determining vegetation cover in the sagebrush steppe. Fourteen management units at the US Sheep Experiment Station were identified for study. In each unit, 20 data collection po...
متن کاملEcosystem functional response across precipitation extremes in a sagebrush steppe
Background Precipitation is predicted to become more variable in the western United States, meaning years of above and below average precipitation will become more common. Periods of extreme precipitation are major drivers of interannual variability in ecosystem functioning in water limited communities, but how ecosystems respond to these extremes over the long-term may shift with precipitation...
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ژورنال
عنوان ژورنال: Environmental Management and Sustainable Development
سال: 2015
ISSN: 2164-7682
DOI: 10.5296/emsd.v5i1.8665