1. Soil Vital Signs: A New Soil Quality Index (SQI) for Assessing Forest Soil Health, Res. Pap., RMRS-RP-65WWW;Amacher,2007
2. Carbon and greenhouse gas mitigation through soil carbon sequestration potential of adaptive agriculture and agroforestry systems;Bangroo;Range Management & Agroforestry,2013
3. Bulk density;Blake,1986
4. Development of vegetation based soil quality indices for mineralized terrane in arid and semi-arid regions;Blecker;Ecol. Indic.,2012
5. Total nitrogen;Bremner,1996