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17. Land is an essential natural resource, both for the survival and prosperity of humanity and for the maintenance of all terrestrial ecosystems. ... Increased demand, or pressure on land resources, shows up as declining crop production, degradation of land quality and quantity, and competition for land.
18. Land-use planning is important to mitigate the negative effects of land use and to enhance the efficient use of resources with minimal impact on future generations. ... Equity in land use focuses on reducing inequalities in income, food security, and housing.
19. The percentage of the total area for which land-use statistics (data) are available, is termed as 'reported area'. India's reported area is 93%. Reasons: Because the land-use reporting for most of the north-eastern states, except Assam, has not been done.
20. The most important type of land degradation in India is soil erosion (both by wind and water) (on 119 million ha), followed by shifting cultivation, waterlogging and salinity.