阿拉善高原拟步甲空间分布格局及其与气象因子的关系  

Spatial distribution pattern of Tenebrionidae and its relationships with meteorological factors in Alxa Plateau, China

作　　者：贾龙[1] 张建英[2] 任国栋[3] JIA Long;ZHANG Jian-ying;REN Guo-dong(College of Agriculture,Ningxia University,Yinchuan 750021,China;College of Life Science,Ningxia University,Yinchuan 750021,China;College of Life Science,Hebei University,Baoding 071002,Hebei,China)

机构地区：[1]宁夏大学农学院,银川750021 [2]宁夏大学生命科学学院,银川750021 [3]河北大学生命科学学院,河北保定071002

出　　处：《应用生态学报》2019年第10期3316-3326,共11页Chinese Journal of Applied Ecology

基　　金：宁夏高等学校科学技术研究项目(NGY2017014)资助~~

摘　　要：为探究拟步甲在阿拉善高原的空间分布及其环境响应,在对阿拉善高原拟步甲分布调查的基础上,结合温度、降雨及太阳辐射数据,利用栅格分析法并采用OriginPro 9.0、Canoco 5.0等软件,对阿拉善高原拟步甲的空间分布格局及其与气象因子的关系进行研究.结果表明:由南至北随纬度增加,阿拉善高原拟步甲物种的数量逐渐上升,至峰值后逐渐下降,拟合曲线呈抛物线型.由西至东随经度增加,阿拉善高原拟步甲物种数量逐渐上升,至峰值后逐渐下降,拟合曲线呈近似单峰型.随海拔上升,阿拉善高原拟步甲的物种数量逐渐上升,至峰值后逐渐下降,拟合曲线呈单峰型.降雨量、温度、太阳辐射对阿拉善高原拟步甲物种数量的纬向分布影响显著.随降雨量增加,物种数呈单峰型变化,峰值纬度带为38°—39°N;随月均温增加,物种数呈下降趋势,峰值纬度带为39°—40°N;随月均太阳辐射量增加,物种数呈单峰型变化,峰值出现在16100 kJ·m^-2·d^-1附近,其所对应的纬度范围在38°—39°N.太阳辐射、降雨量为影响拟步甲分布的主要气象因子.We examined the spatial distribution of Tenebrionidae in Alxa Plateau and its environmental response based on the investigation of Tenebrionidae in Alxa Plateau,combined with the temperature,precipitation and solar radiation data,using Grid-Cluster analysis,OriginPro 9.0 and Canoco 5.0 analysis software.The results showed that,with increasing latitude,the number of species rose firstly and declined gradually,with the fitting curve being a parabola.With increasing longitude,the number of species increased gradually,and decreased after the peak,with the fitting curve in approximately unimodal.With increasing altitude,the number of species increased gradually,and decreased after the peak,with the fitting curve showed a single-peak trend.Rainfall,temperature,and solar radiation significantly affected the latitudinal distribution of species richness of Tenebrionidae.Species richness followed a unimodal type with increasing rainfall,peaked in the 38°-39°N.Species richness decreased with increasing temperature and peaked in the 39°-40°N.With the increases of average monthly radiation,Tenebrionidae showed a trend of unimodal type,and peaked at about 16100 kJ·m^-2·d^-1(38°-39°N).Solar radiation and rainfall were the main meteorological factors affecting the distribution of Tenebrionidae in the Alxa Plateau.

关 键 词：鞘翅目 拟步甲 阿拉善高原 空间分布格局 气象因子 

分 类 号：Q968[生物学—昆虫学]