摘要
本文以色达县高原鼠兔为例,运用影响高原鼠兔分布的草原类型、海拔、坡度、坡向等主要因子的图件和遥感影像数据,对单一因子进行宜生指数赋值并运算生成宜生指数图。根据各因子对高原鼠兔发生分布的影响程度不同,建立高原鼠兔综合宜生指数加权模型,运算生成色达县高原鼠兔综合宜生指数图,即宜生区图。为下一步全省草原主要生物灾害宜生区划分提供技术参考。
Taking the plateau pika in Seda as example,using the remote sensing image data of the main factors which affect the distributing of plateau pika,including the grassland type,altitude,gradient and slope aspect,to evaluate the inhabitability index of every factor and meanwhile calculatethe map of inhabitability index.According to the differences of the effect of each factor on the distribution of plateau pika,a weighted model of the comprehensive inhabitability index of plateau pika was established to calculate and obtain the image of inhabitable area which would provide the technical reference for dividing inhabitable area of the main biohazards of grassland in the whole province.
引文
[1]王丽焕,郑群英,肖冰雪,等.我国草地鼠害防治研究进展[J].草地保护,2005,(5):48-60.
[2]赵磊,严东海,张绪校,等.四川省草原鼠害现状与防治技术进展[J].草业与畜牧,2015,(4):3-7.
[3]赵磊,周俗,严东海,等.2015年四川省草原鼠虫害发生趋势分析与防治对策[J].草业与畜牧,2015,(3):49-53.
[4]王银柱,戴良先,刘晓英,等.我国草原现状及其生态恢复途径初探[J].草业与畜牧,2007,(5):29-32.
[5]钟文勤,樊乃昌.我国草地鼠害的发生原因及其生态治理对策[J].生物学通报,2001,9(4):248-352.
[6]张海娟,李希来.高原鼠兔对植被与环境因子变化的响应[J].湖北农业科学,2016,55(14):3638-3640.