2.1. Study selections
The papers were searched using specific keywords from the database of different journals and the online websites. The resulted papers were separated based on requirements keeping several criteria in mind: 1). The collected papers should have comparative study between minimum any two land uses (barren land (BL); cultivated land (CL); grassland (GL); horticulture land (HL); plantation land (PL) and forest land (FL) in Indian context,2). The collected papers should have suitable sets of soil parameters (soil pH, bulk density (BD), cation exchange capacity (CEC), soil organic carbon (SOC) and soil carbon stock (SCS), 3). Forest land (FL) was considered as control treatment over the other land uses (BL/CL/GL/HL/PL). 4). The study paper should represent different regions of India, and 5). The study was not bounded with the particular parameters like soil types, soil classes, soil taxonomy, and management practices, cropping systems, and specific trees, grasses, crops.
For comparing SOC and crop yield to show the impact of proper management practice on to bring back the conditions of soil for restoring soil health and ensuring food security, data from supplementary file of database from Sharma et al. (2019) was used that involve compared data of integrated nutrient management (INM) and inorganic alone for rice and wheat crop.