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基于MaxEnt模型的中国马尾松分布格局及未来变化

闫宇航,岑云峰,张鹏岩*   

  1. (黄河中下游数字地理技术教育部重点实验室, 河南大学区域发展与规划研究中心, 河南大学农业与农村可持续发展研究所, 河南开封 475004)
  • 出版日期:2019-09-10 发布日期:2019-09-10

Predicting distribution pattern and future change of Pinusmassonian a in China based on MaxEnt model.

YAN Yu-hang, CEN Yun-feng, ZHANG Peng-yan*, ZHANG Yu, LIU Xin, LI Cangyu, XU Shuo   

  1. (Key Laboratory of Geospatial Technology for Middle and Lower Yellow River Region, Research Center of Regional Development and Planning, Henan University, Institute of Agriculture and Rural Sustainable Development, Henan University, Kaifeng 475004, Henan, China).
  • Online:2019-09-10 Published:2019-09-10

摘要: 气候因素是影响物种分布的决定性因素之一。根据现有的马尾松分布数据和19个全球气候因子变量数据,依托QGIS 2.18.3和ArcGIS 10.1等软件,运用MaxEnt模型,模拟了马尾松的现分布区,并对其未来分布进行预测,同时对影响马尾松的气候变量进行了分析。结果表明:(1)影响马尾松分布的19个气候变量中,最干燥月的降水量(bio14)和最冷季度的平均温度(bio11)对马尾松分布的影响贡献率超过70%;(2)依托气候数据,对马尾松未来分布进行预测,其未来的分布面积增加,增比为35.82%;(3)使用QGIS 2.18.3软件对未来的气候因子变化进行预测,结果显示,气候变化情况与马尾松未来分布格局相吻合。研究表明,马尾松适应能力较强,未来的气候变化对其分布呈正向影响。

关键词: 绿色屋顶, 屋顶径流, 调控机制, 影响因子

Abstract: Climatic factor is one of the decisive factors determining species distribution. Based on the data of Pinus massoniana distribution and 19 variables of climatic factors, using software QGIS 2.18.3, ArcGIS 10.1 and MaxEnt model, the present distribution area of P. massoniana was simulated, and its future distribution was predicted. We analyzed the climatic variables affecting the distribution of P. massoniana. The results showed that: (1) Among the 19 climatic variables, the driest monthly precipitation (bio14) and the coldest season average temperature (bio11) contributed more than 70% to the distribution of P. massoniana; (2) Based on climatic data, the future distribution of P. massoniana was predicted, and its future distribution area would  increase by 35.82%; (3) Using QGIS 2.18.3 software to predict the future climate factors, the forecast results showed that climate change was consistent with the future distribution pattern of P. massoniana. Our results indicate that P. massoniana has strong adaptability, and that future climate change would have positive effects on its distribution.

Key words: green roof, roof runoff, management mechanism, influence factor.