2.3. Data compilation
Papers (original articles, review papers and thesis) were collected and reviewed from the period 1990-2019 in context to the impact of land use change (LUC) on soil organic carbon (SOC), soil carbon stock (SCS) and other soil properties in different regions of India with an aim of finding the changes in these soil parameters due to conversion of forest to other LU. After general review, data was critically analyzed and data pertaining to FL was considered as control to understand the effect of LUC as to BL, CL, GL, HL and PL in India. Selected 1786 paired data sets from these papers were analysed using Meta-analysis to understand the impact of LUC in India in various soil depths (0-0.15 m, 0.15-0.30 m and 0.30-0.45m).
Furthermore to understand the effect of LUM through human activities, data from supplementary file of database from Sharma et al.( 2019) was used. 338 pairs of data set of the file was Meta-analysed to show the impacts of organic matter addition with chemical fertilizers on crop yields and SOC in the rice and wheat crops of the India during the period of 1989-2016 and stating that sole dependency on chemical sources of nutrients alone could not ensure the food security of the 1.39 billion populations of India.