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  • Hofmockel, Michael  (2)
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  • 1
    Online Resource
    Online Resource
    American Geophysical Union (AGU) ; 2007
    In:  Eos, Transactions American Geophysical Union Vol. 88, No. 50 ( 2007-12-11), p. 560-560
    In: Eos, Transactions American Geophysical Union, American Geophysical Union (AGU), Vol. 88, No. 50 ( 2007-12-11), p. 560-560
    Abstract: Biological, physical, and chemical processes transform bedrock and sediments into soil at the Earth's surface. All terrestrial life on Earth is supported in the aptly named “critical zone” (CZ), where air, water, rock materials, and biota interact. The CZ is bounded at the top by the vegetative canopy and at the bottom by the lower limits of groundwater. Processes within this zone regulate the transformation of minerals, solubilize nutrients for biota, buffer toxins, create water pathways, and ultimately sculpt the landscape on which we live. Forty scientists from many disciplines attended a workshop recently at Pennsylvania State University to discuss needs for data and information systems to investigate the CZ.
    Type of Medium: Online Resource
    ISSN: 0096-3941 , 2324-9250
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2007
    detail.hit.zdb_id: 24845-9
    detail.hit.zdb_id: 2118760-5
    detail.hit.zdb_id: 240154-X
    SSG: 16,13
    Location Call Number Limitation Availability
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  • 2
    Online Resource
    Online Resource
    Wiley ; 2007
    In:  Soil Science Society of America Journal Vol. 71, No. 2 ( 2007-03), p. 266-279
    In: Soil Science Society of America Journal, Wiley, Vol. 71, No. 2 ( 2007-03), p. 266-279
    Abstract: To meet economic and environmental demands for about 10 billion people by the mid‐21st century, humanity will be challenged to double food production from the Earth's soil and diminish adverse effects of soil management on the wider environment. To meet these challenges, an array of scientific approaches is being used to increase understanding of long‐term soil trends and soil–environment interactions. One of these approaches, that of long‐term soil experiments (LTSEs), provides direct observations of soil change and functioning across time scales of decades, data critical for biological, biogeochemical, and environmental assessments of sustainability; for predictions of soil productivity and soil–environment interactions; and for developing models at a wide range of scales. Although LTSEs take years to mature, are vulnerable to loss, and have yet to be comprehensively inventoried or networked, LTSEs address a number of contemporary issues and yield data of special significance to soil management. The objective of this study was to evaluate how LTSEs address three questions that fundamentally challenge modern society: how soils can sustain a doubling of food production in the coming decades, how soils interact with the global C cycle, and how soil management can establish greater control over nutrient cycling. Results demonstrate how LTSEs produce significant data and perspectives for all three questions. Results also suggest the need for a review of the state of our long‐term soil‐research base and the establishment of an efficiently run network of LTSEs aimed at soil‐management sustainability and improving management control over C and nutrient cycling.
    Type of Medium: Online Resource
    ISSN: 0361-5995 , 1435-0661
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2007
    detail.hit.zdb_id: 241415-6
    detail.hit.zdb_id: 2239747-4
    detail.hit.zdb_id: 196788-5
    detail.hit.zdb_id: 1481691-X
    SSG: 13
    SSG: 21
    Location Call Number Limitation Availability
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