The sub- indicators (Trends in Land Cover, Land Productivity and Carbon Stocks) were adopted by the UNCCD’s governing body in 2013 as part of its monitoring and evaluation approach.4 The method of computation for this indicator follows the “One Out, All Out” statistical principle and is based on the baseline assessment and evaluation of change in the sub-indicators to determine the extent of land. [...] Institutional mandate (INST_MANDATE) The 13th meeting of the Conference of the Parties gave the UNCCD secretariat the mandate to continue working with the Interagency and Expert Group on Sustainable Development Goal Indicators in its role as the custodian agency to finalize the methodology and data management protocols for Sustainable Development Goal indicator 15.3.1 and begin coordination relate. [...] The total area of land that is degraded over total land area is the accumulation across the m land cover classes within the monitoring period n is given by: ? (? ? ? ? ? ? ? ? )n = ∑ ? ? ? (? ? ? ? ? ? ? ? )? ,n (3) Where ? (? ? ? ? ? ? ? ? )n is the total area degraded in the year of monitoring n (ha); ? (? ? ? ? ? ? ? ? )? ,n is the total area degraded in the land cover type i in the year of m. [...] Since national data and information to report on SDG Indicator 15.3.1 generally comes from outside the National Statistical Offices (NSOs), prior to submitting the data to the UN Statistical Division (UNSD), the UNCCD consults with the NSOs and requests them to review and validate the data submitted by their country as part of their national report. [...] Methods and guidance available to countries for the compilation of the data at the national level (DOC_METHOD) All data are provided to UNCCD by countries in the form of a national report following a standard reporting template,32 which includes the quantitative data for the indicator and sub-indicators as well as a qualitative assessment of indicator trends.
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