In the primary nonresidential expenditure model, income, ethnicity, private or public lands, and forest lands had a significant effect on nonconsumptive wildlife recreation expenditures.
实证结果显示,在远

支出模型中,个人收入、种族肤色、公私有林地等影响因子,对于非
耗性野生

憩活
之
支出情形具有相对的显著性。


么作用。
是由于移民和非白人
总)



