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搜索结果: 1-9 共查到FiFty years相关记录9条 . 查询时间(0.028 秒)
Mountain ecosystems are significantly affected by climate change. However, due to slow vegetation growth in mountain ecosystems, climate-induced vegetation shifts are difficult to detect with low-defi...
A geologist at the beginning of his career in the early 1960’s was a teacher of mineralogy and geology at the Agordo “Follador” Mining Institute in the Dolomites area. It was 50 years ago now when he ...
Fifty Years of the Phillips Curve: A Dialog on What We Have Learned.
Seawater is a dilute salt solution. The salt or salinity is reduced or elevated as freshwater is added or removed, respectively, through precipitation, evaporation, and sea-ice melting and freezing, a...
The climate change in Shandong Peninsula, China was analyzed in this paper by the non-parametric Mann-Kendall test, Accumulated Difference Curve and Order Cluster Analysis methods, based upon the data...
There are only a few fields in economics whose antecedents can be traced to a single, seminal article. One such field is natural resource economics, which is currently experiencing an explosive reviva...
Fifty years of BLS surveys on Federal employees's pay。
In the mid 19th century, systematic biologists realized that observable similarities and differences among a group of related species could be the basis for hypotheses about the evolutionary relations...
This article considers the accuracy of the official national population projections made for the UK over the last fifty years. The findings take account of the revisions to population estimates follow...

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