id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-9328	Kammann, Claudia I.	Moving forward from “biochar revolution” to “biochar evolution”: Shaping a promising mitigation tool demands future research efforts	2013	2	.pdf	application/pdf	1178	54	52	Lately the “biochar idea” gathered speed, attracting considerable research attention: It seems so logical and at- tractive to first withdraw CO2 from the atmosphere by photosynthesis, then to transfer the biomass-C into a re- calcitrant form by pyrolysis (using the products heat and bio-oil), and finally to improve soil fertility and reduce the GHG “costs” of agricultural production by amending soils with biochar (Lehmann 2007, Woolf et al. 2010). However, biochars can be tremendously different, and temperate or boreal soils may respond completely differ- ent compared to tropical soils where the majority of biochar research has been conducted until recently.	cache/afs-9328.pdf	txt/afs-9328.txt