四川叶用银杏天然资源区划初步研究  

Preliminary Study on the Division of Natural Resources of Leaf Ginkgo in Sichuan

作　　者：张欢 刘芙蓉[2] 罗建勋[2] 严贤春[1] 杜阳平 王海峰 ZHANG Huan;LIU Fu-rong;LUO Jian-xun;YAN Xian-chun;DU Yang-ping;WANG Hai-feng(School of Life Science,China West Normal University,Nanchong,Sichuan 637002,China;Forestry Research Institute,Sichuan Academy of Forestry,Chengdu,Sichuan 610081,China)

机构地区：[1]西华师范大学生命科学学院,四川南充637002 [2]四川省林业科学研究院林业研究所,四川成都610081

出　　处：《四川林勘设计》2020年第1期68-74,共7页Sichuan Forestry Exploration and Design

基　　金：四川乡土叶用型银杏不同种源亲代经济性状综合评价及优异种质资源收集保存及繁育技术研究(2018CZZX28)。

摘　　要：针对四川省叶用银杏天然资源分布特点,利用最大熵模型(Maxent)进行四川银杏潜在适宜栽培区预测和区划,并采用ArcGIS软件绘制了四川银杏的天然分布图。结果表明:其潜在最适宜栽植区主要位于四川盆地丘陵区的成都东部、德阳、绵阳东部和广元西部地区。较高适宜区主要分布在四川盆地中部的丘陵区,包括自贡市、内江市、眉山市、遂宁市、南充市及资阳市东部地区。一般适宜区主要为盆地南缘和东缘,该区域是四川盆中丘陵区与盆周山地的交界地区,包括达州市、巴中市、泸州市、宜宾市、乐山市和雅安市部分地区。金沙江和安宁河谷为非适宜栽培区。This study is mainly aimed at the distribution of leaf ginkgo in Sichuan Province.Based on the typical mathematical classification algorithm,the Maxent model is used and the distribution map of Ginkgo biloba is drawn by ArcGIS software.The results show that the most suitable planting area is mainly located in the hilly area of Sichuan Basin.The eastern part of Chengdu,Deyang,eastern Mianyang and the western part of Guangyuan.The higher suitable areas are mainly distributed in the hilly areas in the middle of the Sichuan Basin,including Zigong,Neijiang,Meishan,Suining,Nanchong and eastern Ziyang.The general suitable area is mainly the southern margin of the basin and the eastern margin.This area is the junction area between the hilly area of Sichuan Basin and the mountainous area of the mountain basin,including:Dazhou,Bazhong,Luzhou,Yibin,Leshan and Ya’an area.The temperature of the Jinsha River and the Anning River Valley is high,the dry and hot weather is obvious,the dry period is long,the soil is dry,and the ginkgo is difficult to grow well,so this area is an unsuitable cultivation area.

关 键 词：四川省 叶用银杏 MAXENT 区划研究 

分 类 号：F32[经济管理—产业经济]