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Climate impact of Europeans killing native Americans
#3
RE: Climate impact of Europeans killing native Americans
Pre-columbian production methodologies were (and still are) highly effective at carbon sequestration.  They were typically engaged in low (or no) till labor intensive companion planted cropping with a nitrogen fixing cover.  In temperate latitudinal bands of north and south america "three sisters" was a dominant paradigm.  Corn serves as a vertical support for pole beans while an undercropped layer of long season squash suppressed weeds.  The entire field was then tamped down or turned under to provide both the tilth and fertility for the next seasons planting. In the sub and tropical bands of n, central, and south america an integrated methodology called "champas" was widely deployed; where masses of floating vegetation provide support and irrigation for dense cropping (even by today's standards).. supported by nitrifying bacteria which lived on the effluent of cultivated fish below.  Higher elevations relied on rhizome mounds.  Arid regions by extensive irrigation networks and thick monoculture.

There were notable outliers, like the slash and burn campaign of interior south america..where no other methodology was (or even could be) feasible given their technological and site restrictions.

(just as additional info - lest a person think that the natives were destroying their environment with the wild abandon that we currently are, lol - they likely would have if they could have...but they didn't because they couldn't)
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RE: Climate impact of Europeans killing native Americans - by The Grand Nudger - February 1, 2019 at 11:08 am

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