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,在远距
费支出模型中,个人收入、
肤色、公私有林地等影响因子,对于非
耗性野生
物游憩活

费支出情形具有相对的显著性。

地位;
;
生成,部分未经过人工审核,其表达内容亦不代表本软件的观


