Well, it's all about money. Providing financial alternative to developing countries to stop deforestation and land conversion (this is about wetlands) is the only alternative. Private land is another option - purchasing important areas for NGOs to ensure protection.
The first element may be education on the benefits and associated dependent resources, which are many and variable. Habitat, critical species, scenic beauty, carbon sequestration, etc. Then once a society recognizes their importance, then some type of inventory, classification, management, regulation, tax rebates, compensatory or replacement mitigation requirements if damaging or destroying cannot be avoided. The US Corps of Engineers has developed a wide range of educational materials, Wetland Delineation Manual (1987), Powerpoints, plant and soil lists, connectivity to waters, etc. Cowardin et al, developed a wetland and deep water habitat classification that might be useful. Also important would be to convince the leaders, legislators, developers and landowners or citizens that some degree of regulation and management leads to benefits that they can relate to. Maybe a decade ago, I downloaded a book on drainage, because in part of my interest in wetlands. Early farmers and settlers besides wanted to develop all their land for production, also apparently felt or even fear that wetlands were evil, bad smelling, insect and snake production, etc. Actively draining and destroying wetlands became a goal of many early settlers and developers, and many wetlands were drained, filled, destroyed and/or farmed. In recent times, we have found recreating wetlands is not easy, so restoring former wetlands is a logical way to mitigate any added desire or need to destroy wetlands for they cannot be avoided.
Wetlands sequester more carbon per hectare of any ecosystem on the planet--so a per hectare calculation needs to be made, if you drained and converted it to human use, what is the take home profit vs leaving it alone and selling the carbon credits? I am doing a similar calculation with arid lands grasslands here in Nevada for the ranchers--they only take home $1 per acre per inch of annual rainfall, for example.
Incentivising communities to conserve wetlands through economic and financial instruments may work in a positive manner. For instance, in India, a state government (Kerala in South India) has already launched a scheme called, "Royalty Payments" to rice growing farmers in the paddy wetlands. This scheme has been introduced as the state had experienced a tremendous decline in the rice wetlands due to permanent conversion of rice wetlands as intensified by several anthropogenic and market induced factors. However, the impact of the scheme (which is introduced only recently) on conservation of wetlands needs to be monitored and studied using longitudinal research and experimental designs.
How are wetlands disappearing 3 times faster than forests?
Wetlands Disappearing Three Times Faster than Forests UN Climate Change News, 01 October 2018 – Wetlands, amongst the world’s most economically valuable ecosystems and essential regulators of the global climate, are disappearing three times faster than forests.
Wetlands Disappearing Three Times Faster than Forests | UNFCCC
What does disappearing wetlands teach you about wetlands?
Through hands-on experiences and interactions with scientists, the latest educational adventure from JASON -- "Disappearing Wetlands" -- teaches students in grades 4-9 the importance of wetlands and the threats they are facing.
Why are the remaining wetlands in the world under threat?
The world’s remaining wetlands are under threat due to water drainage, pollution, unsustainable use, invasive species, disrupted flows from dams and sediment dumping from deforestation and soil erosion upstream.
Wetlands Disappearing Three Times Faster than Forests | UNFCCC
One of the primary reasons that you may not be able to build on wetlands is because they are protected areas. Wetlands are among the most productive ecosystems and also play an integral role in the ecology of the watershed. In fact, wetlands are so important that there is even a World Wetlands Day!
Can You Build on Wetlands? 11 Things (2021) You Must Know
Dear Gratien Twagirayezu In India, wetlands were estimated to be 58.2 million hectares, and were observed as important repositories of aquatic biodiversity. The diverse ecoclimatic regimes extant in the country resulted in a variety of wetland systems ranging from high altitude cold desert wetlands to hot and humid
wetlands in coastal zones with its diverse flora and fauna. However, the rapidly expanding human population, large scale changes in land use/landcover, burgeoning development projects and improper use of watersheds have all caused a substantial decline of wetland resources of the country.
Prasad et al. 2002. Conservation of wetlands of India – a review. Tropical Ecology 43: 173-186.
Various strategies were suggested for conservation of wetlands and wetland biodiversity during a recently held "8th Asian Wetland Symposium (AWS-2017- Wetlands for Sustainable Life" during November 7-11, 2017 in Saga, Japan.
Moreover, impacts of climate change on various kinds of wetlands in tropical and subtropical Asia have also been realized and discussed. Successful long-term restoration and management of wetlands depend on our ability and capacity to manage efficiently the limited freshwater resources for meeting both human and environmental needs, coupled with our effective adaptive responses to the incremental, often synergistic, threats from climate change.
Brij Gopal. 2013. Future of wetlands in tropical and subtropical Asia, especially in the face of climate change. Aquatic Science, 75: 39–61.
Gratien Twagirayezu, we can strengthen governance systems and structures...this can help address the challenge linked to wetland loss from opening up new fronts from extractives and infrastructural development, overexploitation, etc participatory monitoring and control, especially with wetland adjacent communities. See an example of DPSIR framework for a transboundary wetland in East Africa
The first important step is to monitor changes in the wetland land covers, which is possible through the classification and analysis of the multi-temporal satellite imagery. Defining and implementing rehabilitation projects with the appropriate legal and financial supports as well as the participation of indigenous peoples is the next step. The attached file can be useful.
In India, wetlands are regulated through Wetland (Conservation and Management) Rules, 2017. We also have the state level wetland committees to look into the matters related to wetlands. A special protection is also given by the central government of India to all the "Ramsar sites" within the country. In some instances, the honorable court have acted on its own motion and took up the matters related to wetland pollution.
Incentives may be provided to the people and communities for protection of wetlands, which could be in terms of financial and non-financial instruments.