In an increasingly crowded and fragmented world, national parks provide much more than a refuge from the crush. They are, in many ways, a last stand for biodiversity, an incredibly rich collection of ecological assets that contribute both value-laden natural resources and direct economic gain.

"Natural resources" not in the shape of forests to be logged, rivers to be dammed, or minerals to be mined, but rather biological connections and habitats crucial for the survival of species, sources of fresh water and, even, in the case of parks with wide expanses of forest, air filters. From that perspective, national parks have great value in today's economy.

In a new book, Capitalizing On Nature, Ecosystems as Natural Assets, Edward B. Barbier notes that, "if ecosystems and the goods and services they generate can be associated with the ecological landscape defining these systems, then we have a way of depicting these ecosystems as natural assets that is amenable to economic analysis."

"Viewing ecosystems as natural assets is also an important way of communicating to policymakers the economic importance of these valuable systems," he adds. "As they provide a flow of beneficial goods and services over time, ecosystems should be considered no different than any other form of wealth in an economy. Policymakers are then confronted with a clear choice of deciding whether or not to conserve this natural capital or to convert it to another form of wealth."

There is, of course, an economic value to the National Park System that is more tangible than streams, forests, and grizzly bears, one in the form of jobs created and dollars infused by visitors and payrolls.

And so, how Congress decides to best conserve the "natural capital" found within the National Park System -- within all 397 units -- is a question of importance not to be belittled.

Budget cuts forced Wrangell-St. Elias National Park officials to cut their seasonal hiring positions by 24 this past summer. NPS photo of fall along the McCarthy Road in the park.

With the federal government awash in debt and the congressional "super committee" seemingly unable to compromise on a course of prudent spending, the likelihood of additional budget cuts to the National Park Service grows daily.

And additional cuts, the National Parks Conservation Association tells us today in a new report, are something the park system cannot easily shoulder.

"We are increasingly concerned that national parks are at a tipping point, and that Congress and the administration need to pay attention," Craig Obey, NPCA's senior vice president of government affairs, told reporters listening in on a conference call. "Like so many others, we're watching with concern the deliberations of the congressional super committee."

As the country struggles to regain its economic footing, the National Park Service is operating with a roughly $3.1 billion budget that is nearly $400 million less than it was a decade ago, the association explains in Made In America: Investing in National Parks for Our Heritage and Our Economy.

Whether the super committee succeeds in agreeing on how to save the country $1.5 trillion, or whether automatic cuts amounting to $1.2 trillion begin to take hold in Fiscal Year 2013, the National Park System is more than likely to be impacted to some degree. And that, NPCA says, the system cannot easily bear.

“If the super committee process fails, triggering a cut of 9 percent, the consequences will be devastating for our national parks, park visitors, and the businesses, communities, and jobs that depend on them," Mr. Obey said. "A 9 percent cut to the Park Service budget would equal approximately $231 million. The vast majority of that, about $200 million, would come from the operational fund necessary to keep the parks and the park facilities open, hire park rangers, respond to emergencies, protect our national treasures from looting and decay, hold campfire talks, and connect school groups to our national history.

“National parks already make do on a budget that’s short of the annual need by between $500 million and $600 million," he pointed out. "A 9 percent cut would quickly balloon that annual shortfall by nearly 40 percent."

Already the ramifications of inadequate funding are manifesting themselves across the system, the parks advocacy group notes.

"In FY 2011, funding for the National Park Service was reduced by nearly $140 million, including an $11.5 million reduction for operations," the NPCA report points out. "In tight budget times, it's reasonable for the National Park Service to operate frugally. But thrifty operation isn't enough to keep parks solvent: national parks today receive just 82 cents for every dollar they need to pay for the rangers who are fulfilling the experience of millions of annual visitors and protecting the parks' treasures.

Visitors inject roughly $700 million a year into the region around Grand Canyon National park. Photo by QT Luong, www.terragalleria.com/parks.

"And threats are mounting: according to the recently-enactly Budget Control Act of 2011, if Congress is unable to agree on a level of spending and revenue that reduces the budget, programs from defense to national parks will be subject to a budgetary sequester -- which means national park budgets could be cut by as much as 9 percent."

While 9 percent might not seem like much, NPCA has provided the following glance at some of the budgetary impacts the parks already are struggling to cope with:

* The Park Service's budget for construction and routine maintenance is $325 million short of what the agency needs to provide basic maintenance for sewer and water systems, roofs, foundations, and roads.

* Grand Canyon National Park needs more than $16 million to provide visitors with safe drinking water.

* Budget cuts prompted Wrangell-St. Elias National Park and Preserve officials to reduce their seasonal employment ranks by 24 positions for the summer of 2011.

* Zion National Park can afford just one ranger to be available at night to respond to any problems in the park's campgrounds.

* Lack of funding at Acadia National Park has left 15 permanent staff positions unfilled.

* Blue Ridge Parkway's budget allows for just 170 of its 240 allocated full-time positions to be filled. Just 10 permanent interpretive rangers are on staff for the parkway's 14 visitor contact facilities.

* At Fredericksburg and Spotsylvania National Military Park, the park lacks an education specialist who could develop programs for school groups, and has unfilled positions in interpretation and maintenance.

Although national parks were set aside primarily to protect natural, cultural, and historic resources treasured by the country, the tangible economics that flow from the park system can't be ignored. For instance, the NPCA report notes that:

* Every $1 million in park construction generates 14-16 jobs. Annually, the National Park System creates 267,000 private-sector jobs, and funnels $13.2 billion into the nation's economy.

Investments in Acadia National Park handsomely reward the surrounding communities. NPS photo.

* A 2005 study pointed out that visitor spending at the Grand Canyon generated nearly $700 million annually for the region.

* Acadia produces as much as $16 in economic activity for every $1 invested in the park.

* At Big Bend National Park in Texas, visitors spent more than $15 million in the region during 2009.

* The regional economy around Shenandoah National Park received an infusion of more than $63 million in 2009, when more than 1.1 million visited the park.

Denis Galvin, a former deputy director of the Park Service, pointed to Acadia National Park in illustrating the damage a 9 percent cut could do to parks across the country. At that park, he said, hiring seasonal rangers consumes about 10 percent of the park's annual budget.

“So a 9 percent cut, if you're looking at it from the standpoint of a park superintendent, their greatest flexibility is hiring more or less seasonals. In the case of Acadia, at least, and probably in many other parks, a 9 percent cut would essentially wipe out seasonals," Mr. Galvin said. "Which means at the height of the visitor season you have nobody to staff visitor centers, give interpretive talks, provide law enforcement services, etc. It’s just very clear that anything like a 9 percent cut would be devastating to the parks and result in park closeures I think shortly after that.”

The American people, Mr. Obey offered, don't want to see such harm done to the park system.

"According to a recent polling outlined in the report, 85 percent of voters favor providing national parks with the funds they need to be fully restored and ready to serve the public for the next 100 years by 2016," he noted. "Given the federal budget situation, we don’t expect park budgets to be adequately restored in the near term. But what we are asking Washington is to please not make matters worse, either by death by 1,000 cuts for a few years, or through a near-term Draconian across-the-board cut.”