宁夏农林科技2025，Vol.66Issue(12)：11-14,18,5.DOI:10.3969/j.issn.1002-204x.2025.12.003
宁夏荒漠地区甘草种子害虫对寄主斑块质量与格局的响应
Responses of Licorice Seed Pests to Host Plant Patch Quality and Patch Pattern in Desert Area in Ningxia
摘要
Abstract
Licorice seed pests included Bruchophagus glycyrrhizae Niikolskaya.and Bruchidius ptilinoides Faharaeus.,damage rate of licorice seed pests is as high as over 40%,which has become one of the important bottleneck of licorice planting industry.In order to explore the influence of landscape factors on licorice seed pests,taking the desert landscape in mid-eastern Ningxia as the background,13 patches of three habitat types,namely artificial sand-fixing secondary forest land,mobile aeolian sandy land and sandy loam hilly land,were selected,to study the responses of licorice seed pests to the patch quality,patch area and spatial pattern of host plants.The results showed that the damage rates of licorice seed pests varied significantly in three different habitats.At the habitat level,the damage rate of licorice seed pests was closely related to the density of leguminous plants.At the small-scale level of the patch,it was significantly positively correlated with the coverage of other plants,and the relationship consigned to Y=6.762 356 21+0.310 340 865 95×X6.The pest damage rate of licorice seeds was not significantly affected by habitat fragmentation and the reduction of patch area.There was no obvious correlation with the ratio of the inner edge of the patch and the patch connection index,but it was significantly negatively correlated with the patch shape index,with a correlation coefficient of 0.689 4.It shows that licorice seed pests are affected by host density on a large scale and shelter landscape factors such as other plant coverage and patch shape on a small scale.关键词
荒漠景观/斑块质量/斑块格局/甘草/种子害虫Key words
Desert landscape/Patch quality/Patch pattern/Licorice/Seed pests分类
农业科技引用本文复制引用
杨炜迪,王晓春,杨天辉,陈宏灏..宁夏荒漠地区甘草种子害虫对寄主斑块质量与格局的响应[J].宁夏农林科技,2025,66(12):11-14,18,5.基金项目
宁夏自然科学基金项目(2022AAC03418、2024AAC02063). （2022AAC03418、2024AAC02063）
