3Sombroek W G. Biomass and carbon storage in the Amazon e- cosystems[J]. Intersifincia, 1992,17 : 269-272.
4Whitman T, Lehmann J. Biochar:One way forward for soil car bon in offset mechanisms in Africa[J] Environmental Science:Policy,2009,12(7) : 1024-1027.
5Laird D A,Brown R C,Amonette J E,et al. Review of the py rolysis platform for coprodueing bio-oil and biochar[J] Biofu- els, Bioproducts and Biorefining, 2009,3 (5) : 547-562.
6Liang B, Lehmenn J,Solomon D, et al. Black carbon increases cation exchange capacity in soils [J]. Soil Sci Soc Am J,2006, 70(5) ;1719-1730.
7Ogawa M,Okimori Y. Pioneering works in biochar research, Japan[J]. Australian Journal of Soil Research,2010,48:489 500.
8Warnock D, Lehmann J, Kuyper T W, et al. Mycorrhizal re- sponses to biochar in soil-concepts and mechanisms[J]. Plant and Soil, 2007,300 : 9-20.
9Van Zwieten L,Kimber S, Morris S, et al. Effects of biochar form slow pyrolysis of papermill waste on agromic perform-ance and soil fertility [J]. Plant and Soil, 2010, 327 (1/2): 235-246.
10Novak J M,Busscher W J,Laird D L,et al. Impact of biochar amendment on fertility of a southeastern coastal plain soil [J]. Soil Science,2009,174(2) :105-112.
