深圳市福田区薇甘菊发生危害情况调查

Investigation on Occurrence and Injurious Degree of Mikania micrabtha in Futian District of Shenzhen

对深圳市福田区薇甘菊发生危害情况的调查表明:薇甘菊在福田区的发生总面积为562.14 hm2,占全区绿地总面积的16.39%,山地、公园、大道、街道社区等均有分布,其中以梅林山、梅林水库周边、银湖山等山地,莲花山、笔架山、梅林公园等市政公园,以及梅林街道等社区绿地的天然次生林、经济果林、人工林的发生面积较大,天然次生林发生面积最大,占发生总面积的85.65%,危害程度以覆盖20%～60%的中度危害(3级,占57.27%)和覆盖<20%的轻度危害(2级,占42.33%)为主。

The occurrence and injurious degree of Mikania micrabtha in Futian district of Shenzhen city were investigated,the results showed that the total occurrence area of Mikania micrabtha in Futian district was 562.14 hm2,which occupied 16.39% of the total greenbelt area in Futian district.Mikania micrabtha distributed to mountains,parks,roads,streets and communities.The occurrence area of this weed in economic forest and plantation was larger,and that in the natural secondary forest was the largest,accounting for 85.65% of the total occurrence area.The injurious degree of Mikania micrabtha in Futian district was mainly between grade 3 and grade 2,which belonged to moderate and gentle damage level respectively.