期刊论文

Potential distribution of Broussonetia papyrifera in China based on MaxEnt model

中文

中南林业科技大学学报

1673-923X

2018

38

5

40-45

10.14067/j.cnki.1673-923x.2018.05.007

31700332:国家自然科学基金 XKL201731:湖南省林业科技项目 2016TP2007:湖南省科技计划 2016TP1014:湖南省科技计划 2016NK2148:湖南省科技计划

本校为其他机构

构树是桑科构树属植物,基于良好的经济价值和生态价值,2015年构树被确定为国家精准扶贫树种,构树扶贫成为国家战略,为了解构树在我国的潜在适生区,采用Maxent生态位模型,结合ArcGIS技术对构树在国内的潜在适生分布区域进行模拟预测。结果表明:(1)预测结果的精度采用ROC曲线法检测,结果显示数据精度为0.935,预测结果极准确,获得了较好的预测结果。(2)模型预测认为构树适生区域面积为307.104万km~2,适生区域占国土面积比例为31.99%;高适生区和极高适生区面积为178.752万km~2,占比为18.62%,长江流域、四川盆地、云贵高原和黄河流域部分地区为高适生区域。(3)降水和温度是影响构树潜在分布的气象要素...

Broussonetia papyrifera belongs to Moraceae plant, a tall deciduous tree, Broussonetia papyrifera was identified as the national targeted poverty alleviation tree species, poverty alleviation has become the national strategy based on good economic value and ecological value. In order to solve the potential suitable habitat of Broussonetia papyrifera in China, the Maxent niche model and ArcGis technique were used to simulate the potential suitable distribution area of Broussonetia papyrifera. Using ROC curve analysis of Maxent model forecasting result accuracy of the suitable distribution of Br...