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搜索结果: 1-15 共查到U.S. grasslands相关记录34条 . 查询时间(0.093 秒)
Monoculture plantations of fast-growing trees are increasing worldwide and, in many cases, these replace highly diverse natural environments. The Mesopotamian Savannas and the Iberá marshes ecoregions...
Since the first Homo sapiens emerged in Africa 300,000 years ago, grasslands have sustained humans and thousands of other species. Today, those grasslands are shifting. Global change -- including clim...
Woody vegetation, such as trees and shrubs, has increased dramatically in Ozark grasslands over the past 75 years, according to a study published this week in the journal Landscape Ecology.The study e...
A warming climate could affect the stability of alpine grasslands in Asia’s Tibetan Plateau, threatening the ability of farmers and herders to maintain the animals that are key to their existence, and...
When grasslands feature a wide array of plant species, they provide a variety of benefits for humans and animals, including enhanced carbon storage capacity that can be quantified economically, accord...
A new study showing dryness of the atmosphere affects U.S. grassland productivity more than rainfall could have important implications for predicting how plants will respond to warming climate conditi...
Biodiversity is an ecological concept, which essentially involves a complex sum of several indicators. One widely accepted such set of indicators is prescribed for habitat conservation status assessme...
Results from one of the longest-running and most extensive experiments to examine how climate change will affect agricultural productivity show that California grasslands will become less productive i...
Grasslands across North America will face higher summer temperatures and widespread drought by the end of the century, according to a new study.But those negative effects in vegetation growth will be ...
The American Forage and Grassland Council (AFGC) is an international organization made up of 20 affiliate councils in the United States and Canada with a total individual membership of about 2,500. O...
Significant numbers of grass eating geese migrate in east Asia as far south as the Yangtze. Geese prefer young and high quality vegetation, a resource difficult to find in central China in autumn and...
The Eurasian steppe has long been subject to grazing by domestic ungulates at high levels, resulting in widespread deterioration of biodiversity and ecosystem services. While abundant evidence demonst...
Understanding the mechanistic links between environmental drivers, human disturbance, plant functional traits, and ecosystem properties is a fundamental aspect of biodiversity-ecosystem functioning re...
Nitrogen (N) deposition is widely considered an environmental problem that leads to biodiversity loss and reduced ecosystem resilience; but, N fertilization has also been used as a management tool for...
Grassland degradation due to over-grazing causes severe ecological and economical problems in the semi-arid grasslands of Inner Mongolia, PR China. The development of sustainable management systems is...

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