Pan William K, López-Carr David
Duke Global Health Institute and Nicholas School of Environment, Duke University, 310 Trent Drive, Rm 227, Durham, NC 27708, USA.
Department of Geography, University of California at Santa Barbara (UCSB), 4836 Ellison Hall, Santa Barbara, CA 93106-4060, USA.
Popul Environ. 2016 Sep;38(1):21-46. doi: 10.1007/s11111-016-0253-z. Epub 2016 Jan 23.
Despite implications for both humans and the environment, a scant body of research examines fertility in forest frontiers. This study examines the fertility-environment association using empirical data from Ecuadorian Amazon between 1980 and 1999. Fertility dramatically declined during this period, and our empirical models suggest that households' relationship to land partially explains this decline. Controlling for known fertility determinants such as age and education, women in households lacking land titles experienced a 27 % higher birth rate than did women in households with land titles. This suggests insecure land tenure was associated with higher fertility. Furthermore, each additional hectare of new pasture was associated with a 16 % higher birth rate, suggesting the potential role of a more stable and lucrative income source in supporting additional births. Findings from this research can help inform strategic policies to address sustainable development in frontier environments.
尽管森林前沿地区的生育情况对人类和环境都有影响,但相关研究却非常少。本研究利用1980年至1999年厄瓜多尔亚马逊地区的实证数据,考察了生育与环境之间的关联。在此期间,生育率急剧下降,我们的实证模型表明,家庭与土地的关系在一定程度上解释了这种下降。在控制了年龄和教育等已知的生育决定因素后,没有土地所有权的家庭中的女性生育率比有土地所有权的家庭中的女性高27%。这表明土地使用权不安全与较高的生育率有关。此外,每新增一公顷新牧场,生育率就会提高16%,这表明更稳定、利润更高的收入来源在支持额外生育方面可能发挥的作用。这项研究的结果有助于为制定解决前沿环境可持续发展问题的战略政策提供参考。