The impacts of land degradation are limited not solely to soil loss through erosion but also to their subsequent role in reducing the biological and economic productivity of drylands. Reversing desertification, therefore, requires the restoration of the ecosystem's state, function, and services that have suffered or even disappeared in degraded drylands. Because of the soil's reduced water holding capacity and poor productivity, restoration tends to be even slower in desertified areas than in non-dryland regions experiencing land degradation. Two stages of activities are necessary for restoring ecosystems in desertified areas: removing disturbances to the lands and putting forth proactive efforts to restore the flora and fauna to degraded regions. In semiarid and arid regions, special importance is also given to managing watershed regimes and, when possible, reinstating natural flood patterns.
关键词
相关推荐
- Thinking Outside the Basin: Evaluating Israel's Desalinated Climate Resilience Strategy [2017]
- The Impact of Visits to Dryland Forests on Environmental Outlook: Results from a National Survey [2017]
- Not Just Tolerated-A Global Leader: Lessons Learned from Israel's Experience in the United Nations Convention to Combat Desertification [2017]
- Rethinking the sustainability of Israel's irrigation practices in the Drylands [2017]
- The implications of environmental trading mechanisms on a future Zero Net Land Degradation protocol [2017]