Human Geography

Download An Imperfect Balance: Landscape Transformations in the by David L. Lentz PDF

By David L. Lentz

We regularly envision the recent international ahead of the coming of the Europeans as a land of pristine common attractiveness and undisturbed environments. in spite of the fact that, David Lentz bargains an alternate view by way of detailing the effect of local cultures on those ecosystems sooner than their touch with Europeans. Drawing on a variety of specialists from the fields of paleoclimatology, historic ecology, paleontology, botany, geology, conservation technology, and source administration, this e-book unlocks the key of ways the Western Hemisphere's indigenous population encouraged and reworked their usual environment.

A infrequent blend of collaborators uncovers the alterations that happened in North the United States, Mexico, imperative the USA, the Andes, and Amazonia. each one element of the ebook has been comprehensively prepared in order that a botanical description of the typical crops of the area is coupled with a suite of case experiences outlining neighborhood human impacts. From transformations of crops, to alterations in soil, flora and fauna, microclimate, hydrology, and the land floor itself, this assortment addresses one of many nice problems with our time: the human amendment of the earth.

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Additional resources for An Imperfect Balance: Landscape Transformations in the Precolumbian Americas

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D. 1500 the Aztecs in the Basin of Mexico, dependent, no doubt, on their 12,000 ha of chinampas, or raised fields (Sanders et al. 4 persons/km 2, even greater than the Lowland INTRODUCTION: DEFINITIONS AND CONCEPTUAL UNDERPINNINGS Maya (Turner 1990). On the Bolivian side of Lake Titicaca in the central Andes, 19,000 ha of raised fields were developed to support the Tiwanaku empire (Kolata 1991 : 109). In total, Tiwanakan raised fields surrounding Lake Titicaca extended to as much as 122,000 ha (Erickson, personal communication).

Pollen stratigraphy of two cores from the Pete´n lake district, with an appendix of two deep-water cores. In M. , Prehistoric Lowland Maya Environment and Subsistence Economy, pp. 73 – 89. : Peabody Museum of Archaeology and Ethnology, Harvard University. Wessels, T. 1997. Reading the Forested Landscape: A Natural History of New England. : Countryman Press. Whitmore, T. M. 1991. A simulation of the sixteenth-century population collapse in the Basin of Mexico. Annals of the Association of American Geographers 81: 464 – 487.

P. d. 1000 (Hodell et al. 1995; Curtis et al. 1996), but there is no existing evidence for circum-Caribbean climate change associated with the LIA. Lastly, volcanic eruptions can influence climate by injecting large amounts of ash and gases high into the atmosphere. Large volcanic eruptions are generally followed by tropospheric cooling because of increased reflection of solar radiation by sulfate aerosols in the troposphere and stratosphere. The Intra-Americas Sea is rimmed to the east and west by active plate boundaries that contain many volcanoes capable of providing large quantities of aerosols.

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