APP下载

基于Maxent和ArcGIS的山茱萸生态适宜性区划研究

2017-09-09张飞陈随清王利丽张涛张小波朱寿东

中国中药杂志 2017年16期
关键词:生长生态模型

张飞++陈随清 王利丽 张涛 张小波 朱寿东

[摘要]通过区划研究,预测山茱萸适宜种植区。通过走访和实地调查,收集山茱萸在全国主产区的样品分布信息。以山茱萸药材主产区14个产地89个采样点为分析基点,利用Maxent和ArcGIS对山茱萸进行生态适宜性研究,分析山茱萸生长地的相关生态因子如气候、地形等。影响山茱萸生长的主要生态因子包括11月降水量、3月降水量、植被类型等9个生态因子,山茱萸生长最适宜区域分布在河南、陕西、浙江、重庆、湖北、四川、安徽、湖南、山东等地,对山茱萸的潜在分布区进行了生长适宜性等级划分,生成山茱萸生长适宜性区划图。应用空间分析技术,阐释了山茱萸最适合生长的自然环境,也为山茱萸的野生抚育、引种栽培及人工规范化种植提供科学依据。

[关键词]山茱萸; Maxent模型及Arcgis; 生态因子; 生长适宜性

Study on ecological suitability regionalization of Corni

Fructus based on Maxent and ArcGIS model

ZHANG Fei1, CHEN Suiqing1*, WANG Lili 1, ZHANG Tao2, ZHANG Xiaobo3, ZHU Shoudong3

(1 Pharmacy College of Henan University of Chinese Medicine, Zhengzhou 450046, China;

2 Pharamcy Section of Children′s Hospital of Zhengzhou, Zhengzhou 450000, China;

3.State Key Laboratory of Daodi Herbs, National Resource Center for Chinese Materia Medica, China

Academy of Chinese Medical Sciences, Beijing 100700, China)

[Abstract]Through planting regionalization the scientific basis for planting area of highquality medicinal materials was predicted Through interview investigation and field survey, the distribution information of Corni Fructus in China was collected,and 89 sampling point from 14 producing areas were collected Climate and topography of Corni Fructus were analyzed, the ecological adaptability of study was conducted based on ArcGIS and Maxent Different suitability grade at potential areas and regionalization map were formulated There are nine ecological factors affecting the growth of Corni Fructus, for example precipitation in November and March and vegetation type The results showed that the most suitable habitats are Henan, Shaanxi, Zhejiang, Chongqing, Hubei, Sichuan, Anhui, Hunan and Shandong province Using the spatial analysis method,the study not only illustrates the most suitable for the surroundings of Corni Fructus,but also provides a scientific reference for wild resource tending, introduction and cultivation, and artificial planting base and directing production layout

[Key words]Corni Fructus; Maxent and Arcgis; ecological factors; ecology suitability

山茱萸是山茱萸科植物山茱萸Cornus officinalis Sieb et Zucc除去果核的干燥成熟果肉,具有补益肝肾、涩精固脱的功效[1]。近年来,随着山茱萸市场需求量的不断增加,以致于野生资源逐渐减少,人工栽培已成为山茱萸药材主要来源的必然趋势,全国山茱萸主产区分布于我国的河南、浙江、陕西等省。但由于缺乏引种和产地适宜性分析等相关知识,导致山茱萸品質参差不齐,品质下降等诸多问题,严重制约我国山茱萸产业的健康发展。目前对山茱萸的研究集中在真伪鉴别及质量评价方面,对山茱萸的全国生态适宜性研究尚无报道。因此预测山茱萸的潜在分布区,确定影响其分布和最适宜生长的主导环境因子,对了解山茱萸资源的整体情况、实施山茱萸资源保护和推广人工栽培有十分重要的意义。……

登录APP查看全文

猜你喜欢

生长生态模型
一半模型
“生态养生”娱晚年
碗莲生长记
住进呆萌生态房
重尾非线性自回归模型自加权M-估计的渐近分布
生态之旅
生长在哪里的启示
生长
3D打印中的模型分割与打包
生态