REFERENCES
- Acton , D. F. , Padbury , G. A. and Stushnoff , C. T. 1998 . The Ecoregions of Saskatchewan , Regina , , SK, Canada : Canadian Plains Research Center, University of Regina .
- Amakiri , J. O. and Onofeghara , F. A. 1984 . Effects of crude oil pollution on the germination of Zea mays and Capiscum frutescens . Environ. Poll. Ser. , 35 : 159 – 167 .
- Baker , H. G. 1972 . Seed weight in relation to environmental conditions in California . Ecol. , 53 : 997 – 1010 .
- Blake , A. K. 1935 . Viability and germination of seeds and early life history of prairie plants . Ecol. Monogr. , 5 : 405 – 460 .
- Caetano , A. G. , Fauelukes , G. and Bauer , W. D. 1990 . Optimization of surface sterilization for legume seed . Crop Sci. , 30 : 708 – 712 .
- Cassel , D. K. and Nielsen , D. R. 1986 . “ Field capacity and available water capacity ” . In Methods of Soil Analysis Part 1. Physical and Mineral Methods , Edited by: Klute , A. pp. 901 – 926 . Madison , WI : American Society of Agronomy and Soil Science Society of America .
- Chapin , F. S. III , Autumn , K. and Pugnaire , F. 1993 . Evolution of suites of traits in response to environmental stress . Amer. Nat. , 142 : S78 – S92 . http://dx.doi.org/10.1086%2F285524
- Chapin , F. S. III , Groves , R. H. and Evans , L. T. 1989 . Physiological determinants of growth rate response to phosphorus supply in wild and cultivated Hordeum species . Oecol. , 79 : 96 – 105 .
- Coupland , R. T. 1950 . Ecology of mixed prairie in Canada . Ecol. Monogr. , 20 : 271 – 315 .
- Chaîneau , C. H. , Morel , J. L. and Oudot , J. 1997 . Phytotoxicity and plant uptake of fuel oil hydrocarbons . J. Environ. Qual. , 26 : 1478 – 1483 . http://www.csa.com/htbin/linkabst.cgi?issn=0047-2425&vol=26&iss=&firstpage=1478
- Cunningham , S. D. and Ow , D. W. 1996 . Promises and prospects of phytoremediation . Pl. Physiol. , 110 : 715 – 719 .
- Elias , C. O. and Chadwick , M. J. 1979 . Growth characteristics of grass and legume cultivars and their potential for land reclamation . J. Appl. Ecol. , 16 : 537 – 544 .
- Fenner , M. 1985 . Seed Ecology , New York : Chapman and Hall Publishers .
- Fenner , M. and Kitajima , K. 1999 . “ Seed and seedling ecology ” . In Handbook of Functional Plant Ecology , Edited by: Pugnaire , F. I. and Valladares , F. pp. 589 – 621 . New York : Marcel Dekker Inc. .
- Fitter , A. H. and Hay , R. K. M. 1987 . Environmental Physiology of Plants , Toronto , , ON, Canada : Academic Press .
- Gee , G. W. and Bauder , J. W. 1986 . “ Particle size analysis ” . In Methods of Soil Analysis Part 1. Physical and Mineral Methods , Edited by: Klute , A. pp. 377 – 381 . Madison , WI : American Society of Agronomy and Soil Science Society of America .
- Grime , J. P. 1979 . Plant Strategies and Vegetation Processes , Toronto , , ON, Canada : John Wiley & Sons .
- Guo , Q. , Brown , J. H. , Valone , T. J. and Kachman , S. D. 2000 . Constraints of seed size on plant distribution and abundance . Ecol. , 81 : 2149 – 2155 .
- Jurado , E. and Westoby , M. 1992 . Seedling growth in relation to seed size among species of arid Australia . J. Ecol. , 80 : 407 – 416 .
- Kolawole , G. O. and Kang , B. T. 1997 . Effect of seed size and phosphorus fertilization on growth of selected legumes . Comm. Soil Sci. Pl. Anal. , 28 : 1223 – 1235 .
- Kulakow , P. A. , Schwab , A. P. and Banks , M. K. 2000 . Screening plant species for growth on weathered, petroleum hydrocarbon-contaminated sediments . Intern. J. Phyto. , 2 : 297 – 317 . http://www.csa.com/htbin/linkabst.cgi?issn=1522-6574&vol=2&iss=&firstpage=297
- Lambers , H. and Poorter , H. 1992 . Inherent variation in growth rate between higher plants: A search for physiological causes and ecological consequences . Adv. Ecol. Res. , 23 : 187 – 261 .
- Ledgard , S. F. and Steele , K. W. 1992 . Biological nitrogen fixation in mixed legume/grass pastures . Plant Soil. , 141 : 137 – 153 .
- Leishman , M. R. and Westoby , M. 1994 . The role of seed size in seedling establishment in dry soil conditions—experimental evidence from semi-arid species . J. Ecol. , 82 : 249 – 258 .
- Lin , Q. and Mendelssohn , I. A. 1998 . The combined effects of phytoremediation and biostimulation in enhancing habitat restoration and oil degradation of petroleum contaminated wetlands . Ecol. Engin. , 10 : 263 – 274 . http://dx.doi.org/10.1016%2FS0925-8574%2898%2900015-9 http://www.csa.com/htbin/linkabst.cgi?issn=0925-8574&vol=10&iss=&firstpage=263
- Lloret , F. , Casanovas , C. and Peñuelas , J. 1999 . Seedling survival of mediterranean shrubland species in relation to root: shoot ratio, seed size and water and nitrogen use . Funct. Ecol. , 13 : 210 – 216 . http://dx.doi.org/10.1046%2Fj.1365-2435.1999.00309.x http://www.csa.com/htbin/linkabst.cgi?issn=0269-8463&vol=13&iss=&firstpage=210
- Maas , E. V. 1990 . Crop salt tolerance Agricultural Salinity Assessment and Management , Edited by: Tanji , K. K. pp. 262 – 304 . New York : American Society of Civil Engineers .
- Mazer , S. J. 1989 . Ecological, taxonomic, and life-history correlates of seed mass among Indiana dune angiosperms . Ecol. Monogr. , 59 : 153 – 175 . http://www.csa.com/htbin/linkabst.cgi?issn=0012-9615&vol=59&iss=&firstpage=153
- McLean , E. O. 1982 . Soil pH and lime requirements Methods of Soil Analysis Part 1. Physical and Mineral Methods , Edited by: Klute , A. pp. 199 – 223 . Madison , WI : American Society of Agronomy and Soil Science Society of America .
- Moss , E. H. 1983 . Flora of Alberta , Toronto , , ON, Canada : University of Toronto Press .
- Mueller-Dombois , D. and Ellenberg , H. 1974 . Aims and Methods of Vegetation Ecology , Toronto , , ON, Canada : John Wiley and Sons Inc. .
- Olson , P. E. and Fletcher , J. S. 2000 . Ecological recovery of vegetation at a former industrial sludge basin and its implications to phytoremediation . Environ. Sci. Poll. Res. , 7 : 195 – 204 .
- Poorter , H. and Garnier , E. 1999 . “ Ecological significance of inherent variation in relative growth rate and its components ” . In Handbook of Functional Plant Ecology , Edited by: Pugnaire , F. I. and Valladares , F. pp. 81 – 120 . New York : Marcel Dekker Inc. .
- Qian , P. and Schoenau , J. J. 1995 . Assessing nitrogen mineralization from soil organic matter using anion exchange membranes . Fert. Res. , 40 : 143 – 148 . http://dx.doi.org/10.1007%2FBF00750099
- Qian , P. , Schoenau , J. J. , Greer , K. J. and Liu , Z. 1996 . Assessing plant available potassium in soil using cation exchange membrane burial . Can. J. Soil Sci. , 76 : 191 – 194 .
- Qian , P. , Schoenau , J. J. and Karamanos , R. E. 1984 . Simultaneous extraction of available phosphorus and potassium with a new soil test: A modification of Kelowna extraction . Comm. Soil Sci. Pl. Anal. , 25 : 627 – 635 .
- Rhoades , J. D. 1982 . Soluble salts Methods of Soil Analysis Part 1. Physical and Mineral Methods , Edited by: Klute , A. pp. 167 – 178 . Madison , WI : American Society of Agronomy and Soil Science Society of America .
- Robson , D. B. , Germida , J. J. , Farrell , R. E. and Knight , J. D. 2004 . Natural revegetation of hydrocarbon-contaminated soil in semi-arid grasslands . Can. J. Bot. , 82 : 22 – 30 . http://dx.doi.org/10.1139%2Fb03-138 http://www.csa.com/htbin/linkabst.cgi?issn=0008-4026&vol=82&iss=&firstpage=22
- Robson , D. B. , Knight , J. D. , Farrell , R. E. and Germida , J. J. 2003 . Ability of cold-tolerant plants to grow in hydrocarbon-contaminated soil . Int. J. Phyto. , 5 : 105 – 123 . http://www.csa.com/htbin/linkabst.cgi?issn=1522-6574&vol=5&iss=&firstpage=105
- Rowell , M. J. and Florence , L. Z. 1993 . Characteristics associated with differences between undisturbed and industrially-disturbed soils . Soil Biol. Biochem. , 25 : 1499 – 1511 . http://dx.doi.org/10.1016%2F0038-0717%2893%2990005-V http://www.csa.com/htbin/linkabst.cgi?issn=0038-0717&vol=25&iss=&firstpage=1499
- Schwab , A. P. , Su , J. , Wetzel , S. , Pekarek , S. and Banks , M. K. 1999 . Extraction of petroleum hydrocarbons from soil by mechanical shaking . Environ. Sci. Technol. , 33 : 1940 – 1945 . http://dx.doi.org/10.1021%2Fes9809758 http://www.csa.com/htbin/linkabst.cgi?issn=0013-936X&vol=33&iss=&firstpage=1940
- Soil Classification Working Group . 1998 . The Canadian system of soil classification , Ottawa , , ON, Canada : Agriculture and Agri-Food Canada . Publication 1646
- Swanborough , P. and Westoby , M. 1996 . Seedling relative growth rate and its components in relation to seed size: Phylogenetically independent contrasts . Funct. Ecol. , 10 : 176 – 184 . http://www.csa.com/htbin/linkabst.cgi?issn=0269-8463&vol=10&iss=&firstpage=176
- US EPA . 2000 . Introduction to phytoremediation , Cincinatti , OH : National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency . EPA/600/R-99/107
- Westoby , M. , Jurado , E. and Leishman , M. 1992 . Comparative evolutionary ecology of seed size . Trends Ecol. Evol. , 7 : 368 – 372 . http://dx.doi.org/10.1016%2F0169-5347%2892%2990006-W http://www.csa.com/htbin/linkabst.cgi?issn=0169-5347&vol=7&iss=&firstpage=368
- Xu , J. G. and Johnson , R. L. 1997 . Nitrogen dynamics in soils with different hydrocarbon contents planted to barley and field pea . Can. J. Soil Sci. , 77 : 453 – 458 . http://www.csa.com/htbin/linkabst.cgi?issn=0008-4271&vol=77&iss=&firstpage=453