论文部分内容阅读
2004年甘肃省天水市秦州区林业局玉泉观站引进了5种外来树种,分别是:美国杏李(Prunus domestica×P. armeniaca)、美国东部黑核桃(Juglans nigra)、四倍体刺槐(Robinia pseudoacacia Linn.)、树莓(Rubus sp.)和无刺大果沙棘(Hippophae rhamnoides)。为了确定有无外来物种入侵,2006年对玉泉观站外来树种栽植区进行昆虫种类调查,采用手工捕捉结合网捕的方法采集昆虫标本,经鉴定分析共有45种昆虫,其中有害虫31种,分属于5目21科;天敌昆虫14种,分属于5目11科,种类最多的是鞘翅目昆虫,分别占害虫总数和天敌昆虫总数的35.5%和35.7%。45种昆虫均为当地种,说明引进外来树种没有造成外来物种入侵。
In 2004, Yuzhouguan Forestry Bureau of Qinzhou District of Tianshui City, Gansu Province introduced 5 exotic species: Prunus domestica × P. armeniaca, Juglans nigra, tetraploid black locust Robinia pseudoacacia Linn.), Rubus sp. And Hippophae rhamnoides. In order to determine whether there is invasion of alien species, insect species were surveyed on alien tree planting areas in Yuquan View Station in 2006, and the insect specimens were collected by manual catching and net catching method. A total of 45 insects were identified and identified, including 31 species of pests Belonging to 5 orders and 21 families. There are 14 natural enemy insects belonging to 5 orders and 11 families. The most common species are Coleoptera insects accounting for 35.5% and 35.7% of the total number of pests and natural enemy insects respectively. The 45 species of insects are native species, indicating that the introduction of exotic species did not cause invasion of alien species.