Abstract
Land degradation neutrality (LDN) has been introduced by United Nations Convention to Combat Desertification (UNCCD). Studies of LDN has been encouraged worldwide by UNCCD to compact land degradation. The LDN aims to maintain or even improve the land quality over time and therefore, it envisages quantifying the balance between the gains and losses within a given land type and scale. In this regard, a mathematical model was developed to calculate and redress land degradation. The calculations showed that the model is stable within the values of quality indices (1 and 2) and correlation coefficients (0 and 1).•The model calculates a proxy parameter as a representative of land quality using a set of land quality indices and correlation coefficients between those indices.•The model compares the values for proxy variable for initial and degraded conditions, and calculates the gains needed to equalize the two values.•The model is independent of scale and it is easy to use.
Highlights
Land refers to combined elements of climate, hydrology, soil, vegetation, fauna, and landforms [1]
“The concept was raised to galvanize effort around a concrete target of “no net loss” and it aims to maintain the world’s resource of healthy and productive land through a dual-pronged approach of measures to avoid or reduce land degradation, combined with measures to reverse existing degradation, such that losses are balanced by gains” [4]
A negative impact will result in land degradation, while an opposite will result in land restoration
Summary
Subject Area: More specific subject area: Method name: Name and reference of original method: Resource availability: Environmental Science Land degradation Modeling of land degradation neutrality Not applicable
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