苜蓿蓟马空间动态与作物布局关系研究  

Spatial Dynamics of Alfalfa Thrips and Relationship with Crop Layout

作　　者：朱猛蒙[1] 孙玉荣 陈林 陈彦虎 马俊贵 Zhu Mengmeng;Sun Yurong;Chen Lin;Chen Yanhu;Ma Jungui(Institute of Plant Protection,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan,Ningxia 750002;Ningxia Institute of Design and Investigation,Yinchuan,Ningxia 750002;Technology Center of Yinchuan Customs,Yinchuan,Ningxia 750002;Shizuishan Meteorological Bureau,Shizuishan,Ningxia 763000)

机构地区：[1]宁夏农林科学院植物保护研究所,宁夏银川750002 [2]宁夏回族自治区农业勘查设计院,宁夏银川750002 [3]宁夏银川海关技术中心,宁夏银川750002 [4]宁夏石嘴山市气象局,宁夏石嘴山763000

出　　处：《宁夏农林科技》2024年第3期30-35,共6页Journal of Ningxia Agriculture and Forestry Science and Technology

基　　金：宁夏回族自治区重点研发计划项目“苜蓿种子田传粉昆虫资源评价及授粉增效技术研发”(2022BBF02028)。

摘　　要：【目的】明确宁夏南部山区苜蓿蓟马空间种群动态与作物环境布局之间的关系。【方法】利用高空遥感无人机获取宁夏南部山区4个研究区域的遥感图片,经处理后计算其景观格局指数,明确景观与蓟马种群动态之间的关系。【结果】离散核心区数量(NDCA)、总边界长(TE)、总面积比(CA/TA)、核心区面积均值(Core_MN)、斑块丰度密度(PRD)与蓟马发生量相关,相关系数为-0.99~0.97。【结论】南部山区在梯田、台塬上种植苜蓿,对于蓟马控制具有地形优势;蓟马在跨越高低起伏的地形上,必须依靠一定的气象条件才能顺利转移;但生境破碎化,容易造成蓟马爆发成灾。[Objective]Clarifying the relationship between the spatial population dynamics of alfalfa thrips and crop layout in southern Ningxia mountainous area.[Method]The remote sensing images of four study areas in Southern Ningxia mountainous area were acquired by high-altitude remote sensing unmanned aerial vehicle(UAV),and the landscape pattern index was calculated after processing,and the relationship between landscape and thrips population dynamics was clarified.[Results]The results showed that the number of discrete core areas(NDCA),total boundary(TE),total area ratio(CA/TA),core area average area(Core-MN),and patch richness density(PRD)were related to the occurrence of thrips,and the correlation coefficients were-0.99~0.97.[Conclusion]It shows that planting alfalfa on terraces and terraces in the southern mountainous area has topographic advantages for thrips control.Thrips must rely on certain meteorological conditions to migrate when crossing undulating terrain.However,the fragmentation of the habitat can easily cause thrips to break out.

关 键 词：景观 苜蓿蓟马 空间动态 宁夏南部山区 

分 类 号：S433.89[农业科学—农业昆虫与害虫防治]