62 Spijker, J., 2005. Geochemical patterns in the soils of Zeeland. PhD thesis Utrecht University, Netherlandse Geograï¬sche Studies 330, Utrecht, 205 pp. Steen, I., 1998. Phosphorus availability in the 21st Century: management of a non-renewable resource. Phosphorus and Potassium 217, pp 25â31. STOWA, 2008. Projectplan Betuwse Kunstmest versie 210808a, pp. 20. URL: http://themas.stowa.nl/Uploads/nieuwe%20sanitatie/ projecten/Betuwse%20kunstmest/projectplan%20Betuwse%20 Kunstmest%2021%20augustus%202008.pdf [last accessed: 15 May 2009]. STOWA, 2009. Nieuwe Sanitatie. URL: http://themas.stowa.nl/ Themas/Nieuwe_sanitatie.aspx?mID=7213&rID=846 [last accessed: 15 May 2009]. United Nations, 1999. The world at 6 billion. United Nations Population Division. United Nations, 2005. World population to increase by 2.6 billion over next 45 years. Press Release POP/918, 24 Feb 2005. URL: http://www.un.org/News/Press/docs/2005/pop918.doc.htm. USCB, 2009. International Data Base (IDB). U.S. Census Bureau, Population Division. URL: http://www.census.gov/ipc/www/idb/ informationGateway.php. USGS, 2007. Historical Statistics for Mineral and Material Commodities in the United States. US Geological Survey Data Series 140 - Phosphate Rock. URL: http://minerals.usgs.gov/ ds/2005/140/phosphate.pdf. USGS, 2008. Minerals Yearbook, Phosphate Rock 2007 (Advance Release). US Geological Survey. URL: http://minerals.usgs.gov/ minerals/pubs/commodity/phosphate_rock/myb1-2007-phosp.pdf. USGS, 2009a. Mineral Commodity Summaries - Phosphate Rock. U.S. Geological Survey. http://minerals.usgs.gov/minerals/pubs/ commodity/phosphate_rock/mcs-2009-phosp.pdf. Van der Veer, G., 2006. Geochemical Soil Survey of the Netherlands. Atlas of Major and Trace Elements in Topsoil and Parent Material; Assessment of Natural an Anthropogenic Enrichment Factors. PhD thesis Utrecht University, Nederlandse Geograï¬sche Studies 347, Utrecht, 250 pp Van der Werï¬, P.A., Dekkers, Th.B.M., Oenema, O., 1995. Fosforkringloop en ecologische aspecten van de fosfaathuishouding. Internal document Wageningen University. URL: http:// library.wur.nl/way/catalogue/documents/ab_dlo/hfdst2.html0xI1 (Last accessed 14 September 2009). Vereniging Afvalbedrijven, 2008. Milieuverslag 2007. Van gft-afval naar compost, biogas en elektriciteit. Vereniging Afvalbedrijven, âs-Hertogenbosch, pp. 24. villalba, G., Y. Liu, H. Schroder, and R. U. Ayres, 2008. Global Phosphorus Flows in the Industrial Economy From a Production Perspective. Journal of Industrial Ecology 12(4), 557-569. VROM, 2004. Derde Nederlandse actieprogramma 2004-2009 inzake de Nitraatrichtlijn (91/676/ EEG). Walker, T.W., Syers, & J.K. 1976. The fate of phosphorus during pedogenesis. Geoderma 15, pp. 1-19. World Watch Institute,. 2006. Biofuels for transportation, Global Potential and implications for sustainable agriculture and energy in Pagina 71
Pagina 73Heeft u een catalogus, onlinepublisher of digi-kranten? Gebruik Online Touch: drukwerk online op uw website plaatsen.
458 Lees publicatie 159Home