摘要
为了反映仪陇县水稻种植、生产质量与气候之间的关系,本文选取了四个相关性较高的气象要素作为区划因子,制定出仪陇县水稻种植农业气候区划指标。再基于GIS地理信息系统,并结合数字高程模型(Digital Elevation Model),采用仪陇县及相邻气象台站近30年气象要素(包括年降水量、平均气温、日照时数、≥10℃积温等)观测数据资料,运用ArcGIS软件插值计算得出各区划因子分布图,结合仪陇县水稻种植农业气候区划指标将各区划因子分布图叠加计算,得出仪陇县水稻种植区划图。最终将仪陇县水稻种植划分为最适宜区、适宜区和次适宜区3个区域,该区划能够对仪陇县的水稻种植提供科学的指导作用。
In order to reflect the relationship between rice cultivation,production quality and climate in Yilong County,four highly relevant meteorological elements are selected as regionalization factors to formulate agricultural climate regionalization indicators for rice cultivation in Yilong County.The rice cultivation regional map of Yilong County is obtained based on the GIS geographic information system,combined with the Digital Elevation Model,the data of the meteorological elements(annual precipitation,average temperature,sunshine duration,accumulated temperature≥10℃,etc.)of Yilong County in 30 years,using ArcGIS software to interpolate and calculate the distribution map of each regional factor.As a conclusion,rice cultivation in Yilong County is divided into three areas:the most suitable area,the suitable area and the sub-suitable area.This division can provide scientific guidance for rice cultivation in Yilong County.
作者
张琪慧
ZHANG Qi-hui(Yilong Meteorological Bureau,Yilong Sichuan 637600,China)
出处
《青海农林科技》
2020年第3期45-48,共4页
Science and Technology of Qinghai Agriculture and Forestry
