Ecosystems
Exploitation
Forests have long been exploited. They are harvested for their timber, or cleared for agricultural land, both activities being entirely destructive to the ecosystem. The fen exists typically within the forest, and is not usually subject to exploitation until the forest itself is, because the forest acts as a natural barrier for the fen. The destruction of forests for timber is arguably the lesser of the two forms of exploitation, at least in countries with active silviculture programs, as the forests will have the potential to regenerate. However the destruction of forest ecosystems is associated with several negative outcomes. The biodiversity of the forest system is reduced, and this effect is stronger the more forest is cleared. Destruction for agriculture is permanent, which means that the loss of biodiversity is permanent. Endemic and endangered species are rendered extinct, or their numbers reduced (Chediack, 2008).
Fenland is often exploited via draining. Sometimes, the water source is affected by deforestation of the surrounding forest, as might occur after logging. But where a forest has been removed for agriculture, the fenland is frequently drained as well, resulting in the destruction of the ecosystem. In some cases, fenland has been used as a dumping ground for hazardous wastes, for instance when the fen is filled in. Even when this has been done to facilitate agriculture, it ultimately ruins the soil, as an example in England where the filled-in fen was contaminated with heavy metals shows (Breward, 2003).
The benefits of the exploitation of forests and fens is usually economic, and in many cases short-lived. Timber extraction provides a short-run boost in economic activity. This can be sustainable over the long run if the forest is replanted, but old growth forest is not easily replaceable. The forest undergoes a change in composition upon exploitation, from a vibrant old growth forest ecosystem to a more limited second-growth system that exists mainly to service future logging interests. When the forest is destroyed for agriculture, this mainly serves to increase food production, though not always in the long run. The increase in
Replacing a carbon sink with, say, meat production is doubly-negative with respect to climate change. It is worth noting as well that a tree plantation of second-growth tree cover, does not have nearly the same level of carbon benefits as an old growth forest ecosystem, so replanting does little to mitigate the negative impacts of deforestation on climate change (Sasaki & Putz, 2009).
There are also negative impacts on food supply, which is ironic where forest is being cleared to support agricultural production. Forests host such diversity of life that they contain leaves, fruits, nuts and roots, all of which have significant untapped nutritional value. Clearing for timber or inefficient agriculture such as meat production actually reduces the amount of global food production capability, according to a UN report (UN, 2011).
Fenland exploitation offers fewer tangible benefits. Such land is often drained to foster agriculture, but the value of wetlands is substantial. Wetlands are critical for drainage of land, and for biodiversity. The exploitation of fenland is destructive with little upside, but the fenland itself is affected when the forest around it is cleared. Nevertheless, there is not much case to be made for draining fens.
Management Plans
The biggest issue with managing fens is that the cessation of exploitation is the only reasonable course of action. Fens are not usually "exploited" -- they are destroyed. Their best use is as parkland, and to remain as wetland to manage water levels and drainage, and to maintain some semblance of biodiversity even if the surrounding forest is cut. Maintaining fenland as an essential component of an agricultural…
Fen in a Forest Ecosystem The ecosystem that is of interest in this particular case is the fen in a forest. These are two ecosystems of different categories and yet coexist with the fen being an aquatic ecosystem and the forest being a terrestrial ecosystem. This combination of ecosystems gives a rich place that can effectively support the endangered species and species that are considered vulnerable and rare to be
Wetlands are the main link between the land and the water, and as such are vitally important to the ecology. Wetlands have been misunderstood and abused throughout the history of the United States -- and elsewhere in the world -- and that has led to enormous environmental losses. This paper explores all pertinent information with regard to wetlands. What are Wetlands? The Environmental Protection Agency (EPA) defines wetlands as those "…transition zones
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