I was reading through some newspaper articles from the 1990s about development in my suburban county. In an article on a $75 million bond proposal for county voters to preserve 2,300 acres of open space (which voters did approve), here is one explanation why county voters should increase their property taxes for this purpose:

Bond issue proponents have stressed that preserving open land will help everyone by making DuPage County an even more desirable place to live. Saving open space will improve wildlife habitats, help control flooding, improve stream water quality, avoid added congestion and protect property values, Oldfield said. (Lynn Van Matre, “DuPage voters to decide on open space,” Chicago Tribune, November 2, 1997)
The reasons listed for voting in favor of spending this money appear to split into two areas: (1) environmental concerns (wildlife, flooding, water) and (2) a particular quality of life marked by property values and limited traffic.
But, I wonder if the first category is a subset of the second set of concerns. Suburbanites in Chicagoland care about property values and have concerns about drug treatment centers, waste transfer facilities, religious buildings, apartments, and anything else they think threatens their financial investment.
Do suburban residents care more about environmental concerns or about what development might go into these open spaces? From the perspective of some (and this was also expressed in the article above), such land could be used for affordable housing or for community amenities. To keep it as open space means it could not be other uses that people could benefit from.
If preserving property values is the top concern regarding land development, this is the sort of decision that might be made. Such a decision does not come cheaply; local property owners pay more but they do so in order to hopefully boost their investment even more.
(See earlier posts involving questions about who benefits from open space in New Jersey and the motives behind acquisitions by forest preserves.)