搜索结果: 1-2 共查到“知识库 经济学 watershed”相关记录2条 . 查询时间(0.067 秒)
Review of Changes in American Economic Policy in the 1980s: Watershed or Pendulum Swing?
American Economic Policy Pendulum Swing
2015/8/4
ECONOMIC POLICY in the 1980s may
eventually become the most studied and
hotly debated of any decade in United States
history, even including the 1930s. Popular
writings about the 1980s economy alr...
Watershed land use and river engineering drive wetland formation and loss in the Mississippi River birdfoot delta
Watershed land Mississippi River birdfoot delta
2014/4/4
The Mississippi River basin was developed for agriculture at an unprecedented scale and intensity within the
last 200 yr. These changes favored erosion and sediment transport, which were subsequently...