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Even today, 35% of anthropogenic carbon dioxide contributions can be attributed to land use or land cover changes. [20] Currently, almost 50% of Earth’s non-ice land surface has been transformed by human activities, with approximately 40% of that land used for agriculture, surpassing natural systems as the principal source of nitrogen emissions.
Land-use change can be a factor in CO 2 (carbon dioxide) atmospheric concentration, and is thus a contributor to global climate change. [14] IPCC estimates that land-use change (e.g. conversion of forest into agricultural land) contributes a net 1.6 ± 0.8 Gt carbon per year to the atmosphere.
Percentage figures for arable land, permanent crops land and other lands are all taken from the CIA World Factbook [1] as well as total land area figures [2] (Note: the total area of a country is defined as the sum of total land area and total water area together.) All other figures, including total cultivated land area, are calculated on the ...
The cost of land use planning is usually high, generally because of poor investment and the lack of anticipation of technology. Land use planning theory has largely been shaped by case studies of cities in the Global North. Countries all over the world, particularly in the Global South, are seeing population booms and rapid urbanization.
India's arable land area of 1,597,000 km 2 (394.6 million acres) is the second largest in the world, after the United States. Its gross irrigated crop area of 826,000 km 2 (215.6 million acres) is the largest in the world, followed by US and China. [ 71 ]
Land management is the process of managing the use and development of land resources. One aim of sustainable land management is to prevent or reverse land degradation . Another aim is to ensure water security by increasing soil moisture availability, decreasing surface runoff , and decreasing soil erosion . [ 1 ]
India is the world's most populated country, having surpassed China in 2023. [26] [27] Although population growth in India has slowed, the country's population is expected to grow and hit a peak of 1.7 billion people by 2064. [27] India's replacement level fertility rate is 2, as of 2023. [28]
Independent India's most revolutionary land policy was perhaps the abolition of the Zamindari system (feudal landholding practices). Land-reform policy in India had two specific objectives: "The first is to remove such impediments to increase in agricultural production as arise from the agrarian structure inherited from the past.