• 论文 •

### 气候变暖与土地利用变化对东北黑土耕作区步甲群落的影响

1. 1．东北农业大学农学院，黑龙江 哈尔滨150030；
2．黑龙江大学农业资源与环境学院， 黑龙江 哈尔滨 150080
• 收稿日期:2018-08-21 出版日期:2019-09-25 发布日期:2019-09-25
• 通讯作者: 叶乐夫(1975年生)，男；研究方向：昆虫生态学；E-mail: yelefuneau@foxmail.com

### Influences of climate warming and land use changes on the Carabid beetle assemblage in black-soil cropping area of Northeast China

MA Yanlong1, FU Xue1,2, YE Lefu1, WANG Jiajia1, ZHAO Yueying1, WANG Xue1, ZHU Kexin1，LI Linrong1, GU Wanrong1, ZHAO Kuijun1

1. 1.College of Agriculture of Northeast Agricultural University, Harbin 150030，China；
2.College of Agricultural Resources and Environment, Harbin 150080, China
• Received:2018-08-21 Online:2019-09-25 Published:2019-09-25

Abstract:

As general ground dwelling predators of many agricultural pests, Carabid beetle community responds to the environmental disturbance and climate warming, and thus is intensively related with occurrence of arthropod pests. With changes of climate and land use, the community of ground beetles in the black soil cropping area of the Sanjiang Plain is bound to be affected. In this study, a total of 1 527 carabid beetle adult individuals belonging to 36 species were collected from18 sampling sites located in poplar woodlands and corn fields at different latitude. Pitfall trapping was used to investigate the species richness and individual abundance of Carabid family. The diversity index of ground beetles was also calculated. The effects of latitude difference and land types on these indicators were studied. Relationship of abundance between ground beetle species and other related arthropod groups was also analyzed. Among the samples, Dolichus halensisDolichus halensis and Pterostichus gebleri  were found to be the dominant species in this area. Correlation analysis between the species richness and individuals of ground beetles indicated that species richness and individuals of ground beetles were significantly positive correlated. Under different latitudes and land use types, there were significant differences in the number of individual for specific carabid beetle species: the number of individuals in the three latitudes was Changchun<Harbin<Suihua; individual number in the corn fields is higher than that from poplars woodland. However, differences of ground beetle species richness at different latitudes and land use types were not significant. Analysis of the correlation between various ground beetles individuals showed that: Dolichus halensisPterostichus gebleri and Synuchus congruous had a significantly positive correlation; and these species had a significant correlation with Orthoptera. Analysis of variance for the most abundant 7 species ground beetles showed that the number of Harpalus pallidipennis in different land types was significantly different; Dolichus halensis varied significantly at different latitudes and land types, Synuchus congruous is significantly different in these two land types, the total number of ground beetles is significantly different at different latitudes and different land types. There was no significant interaction between latitudes and land use types. Overall, the activity-density of carabid beetles at lower latitude was less than that at higher latitudes, and the number of ground beetles in corn fields is bigger than that in woodland. As the climate warming, the number of ground beetles will decrease; and as the type of land use changing from woodland to farmland, the number of ground beetles will increase. Moreover, these big body size carabid beetle species (Dolichus halensisPterostichus gebleri andSynuchus congruous) might have some overlap in prey spectrum.