英文文献：Exploring Goal Tradeoffs In Metropolitan Natural Area Protection-探讨都市自然保护区的目标权衡
英文文献作者：Ruliffson, Jane A.,Haight, Robert G.,Gobster, Paul H.,Homans, Frances R.
英文文献摘要：
This study examines the issue of natural area protection in an urban environment. We report on the results of interviews conducted with a wide range of land use planners in the Chicago region. Of particular interest are the unique goals and challenges of land acquisition programs in a metropolitan area.

本研究探讨城市环境中的自然区域保护问题。我们报告了对芝加哥地区大量土地使用规划师的访谈结果。特别值得关注的是都市地区土地征用计划的独特目标和挑战。