How Wetlands help Men and Fowl
Posted on February 26th, 2014
Heard an interesting report on Radio 4 about, among other things, the Tibetan Peat Wetlands and how they've been drained over the years in order to improve grazing lands for farmers.
However, now there is a move back to re-wetting these areas. Why? Because there have been consequences for those downstream on the Yellow River. In particular there have been problems related to flash flooding, typically because when there are high volumes of rain, the water is no longer retained by the soil. It appears that there is not only a direct benefit, but also an ecological one in the fight to reduce global warming.
Here, the idea is that peat bogs are good at storing carbon ,whereas global warming occurs because of the opposite process of releasing of carbon dioxideÂ into the atmosphere. Tibet has recently passed a law to preserve these Wetland areas, which is also home to the Black-Necked Crane. More on the consequences of the urbanisation on Tibetan ecology. In the U.K., a program is underway called 'Integrated Flood Risk and Urban Drainage' which aims to change the way that, among other things, car parks are built to avoid huge water run-offs in times of heavy rain.
Also to promote the use of garden ponds filled by rain water, so helping to promote wildlife in city areas. Related, is the promotion of green roofs which, as they're thickly covered in vegetation help to increase vegetation in towns and reduce excessive water run-off. These subjects, are ones that I will keep writing about, in the line of bio housing, efforts to improve our ecological approach to things and the debate on recycling yogurt pots and electrical equipment.
Further discussion on this subject: