基于遥感和地理信息系统技术宁夏枸杞适宜性的分布范围

宁夏枸杞为中药材枸杞子在《中国药典》中收录的唯一药用基原植物,其主要分布于我国北部的宁夏、甘肃、青海、内蒙、新疆等地,为常用大宗药材之一。由于需求量大,枸杞子早已供不应求,现大多数枸杞子为引种栽培品,但因各地生态环境、地理条件有诸多差异导致枸杞品质参差不齐,市场流通商品品质混乱。因此本文从文献、第四次中药资源普查与中药资源动态监测工作的基础上,确定出宁夏枸杞分布区域的海拔、年均温、年降水、土壤类型、坡向、日照时数6个因子的范围,并在遥感和地理信息系统(GIS)技术的协助下,结合野外实地调查验证,最终确定宁夏枸杞适宜分布区域。

Research on Suitable Distribution Ningxia Wolfberry Based on Remote Sensing and GIS

Ningxia wolfberry plant, as the only raw medicinal herbs of Chinese wolfberry, is included in the Pharmacopoeia of People''s Republic of China, which is mainly distributed in the northern part of China, such as Ningxia, Gansu, Qinghai, Inner Mongolia, Xinjiang and other places.It is one of the commonly used medicinal materials.Due to the large demand, wild wolfberry has long been in short supply.Now most wolfberry is introduced and cultivated.However, due to many differences in ecological environment and geographical conditions, the quality of wolfberry is uneven, and the quality of market circulation is chaotic.On the basis of the literature research, the fourth survey of traditional Chinese medicine resources and dynamic monitoring data, this paper screened the range of six factors of the latitude and longitude, altitude, annual mean temperature, annual precipitation, soil type, slope and sunshine time of Ningxia wolfberry distribution area, and under the assistance of the remote sensing and GIS technology, with validation of data in the field investigation, ultimately determined the suitable distribution area of Ningxia wolfberry.