西南地区香椿的潜在地理分布区及其气候特点  

Potential Geographic Distribution Areas of Toona sinensis and Their Climatic Characteristics in Southwest China Regions

作　　者：刘芙蓉[1,2] 罗建勋[1] 杨马进 

机构地区：[1]四川省林业科学研究院,四川成都610081 [2]成都理工大学,四川成都610059 [3]西华师范大学,四川南充637009

出　　处：《四川林业科技》2017年第1期16-21,共6页Journal of Sichuan Forestry Science and Technology

基　　金：四川省植物资源共享平台建设项目(TJPT20160021)

摘　　要：利用Diva-Gis软件对西南地区香椿(Toona sinensis)的潜在地理分布区及其气候特点进行分析。结果表明,西南地区香椿分布在海拔200 m^2 900 m之间,分布的植被类型主要为针阔混交林、阔叶林、人工纯林和农田防护林。西南地区适宜香椿生长的年均气温为11.7℃~22.8℃,年降雨量为752.0 mm^1 490.0 mm。香椿的分布区与潜在分布区主要在四川盆地及盆周,云南、重庆及贵州的中低山地区、西藏察隅和波密县。在气候变暖的趋势下,香椿的潜在最适宜分布区面积减少,呈现破碎化分布,向高海拔地区和西北方迁移。The potential their climate characteris geographic distribution areas of Toona sinensis in southwestern China regions and tics were analyzed based on DIVA-GIS. The analysis results showed that the distil- bution elevation of T. sinensis ranged broad-leaved and needle leaved mixed The suitable mean annual temperature from 200 m to 2 900 m and T. sinensis trees were distributed in forest, broad-leaved forest, planted forests and farm-shelter forest. and annual precipitation for the growth of T. sinensis were 11.7℃ 22. 8 ℃ and 752. 0 mm - 1 490. 0 ram, respectively. The geographical distribution and the potential re- gions of high suitability for T. sinensis were the Sichuan basin and its surroundings, the hill and low moun- tain regions in Yunnan, Chongqing and Guizhou, and Chayu and Bomi counties of Tibet. The global war- ming might lead to the shrinking in its suitable regions and it might have a tendency of shifting to high-al- titude and northwestern regions.

关 键 词：香椿 西南地区 Diva-Gis 潜在分布区 

分 类 号：S792.99[农业科学—林木遗传育种]