Nutrient cycles are a beautiful thing. That is, when they
work well. If there’s a malfunctioning part in the system, though, it doesn’t just
disrupt the cycle at that point in time, but perpetuates and causes the cycle
to fall apart.
The water cycle in the Adirondacks works great in some areas, but in others it's a mess. We’ve
talked about how much acid rain is a problem in the Adirondacks, and in this
era of pollution and climate change, we tend to attribute the problem to human
involvement. And we’ve certainly done much to cause acid rain but have also
helped to mitigate the problem by cutting back on gas emissions (sulfur dioxide
and nitrogen oxides). But the reading on soil science mentioned an important thing
to consider, which is that the environment isn’t really doing its part to help
either. Through no fault of its own, the Adirondacks have a glaring lack of
limestone or any other acid-neutralizing agent. This is the biggest breakdown
in the water cycle. Once water is contaminated by VOCs (volatile organic
compounds), there are no natural mechanisms to return the water to a balanced
pH. Acid rain depletes any remaining base reserves, leaches mercury into the water,
stunts tree growth, and then affects ecosystems downstream. That’s why the EPA
is predicting that by 2040, 43% of the 2,800 lakes and ponds in the ADKs will
have a pH below 5.0, which can be fatal to many common plant and animal
species.
For once, the defects of the environment aren’t completely
our fault. But that doesn’t mean we’re free of blame. For more info on acid
rain and what steps you can take to help reduce it, take a look at: http://www.adkmuseum.org/acidrain/index.shtml.
The really amazing thing about cycles is that not only does the water cycle, for example, circulate water throughout the Adirondacks, but through all of New York State, all of the Northeast, and the whole world, really. That's also why environmental protection standards must be world-wide to really be effective--which is daunting to say the least.
ReplyDelete