How does tillage intensity affect soil organic carbon? A systematic review protocol.Published in:Environmental Evidence, 2016, v. 4, p. 1, doi. 10.1186/s13750-016-0052-0By:Haddaway, Neal Robert;Hedlund, Katarina;Jackson, Louise E.;Kätterer, Thomas;Lugato, Emanuele;Thomsen, Ingrid K.;Jørgensen, Helene B.;Isberg, Per-ErikPublication type:Article