无人机施药法治理互花米草研究——以崇明北沿滩涂为例

Study on the Control of Spartina alterniflora by UAV Application—Taking the Tidal Flat along Northern Chongming as an Example

外来物种互花米草入侵改变了崇明北沿滩涂生境,威胁了崇明生态岛生态环境安全,为治理崇明北沿大面积互花米草,经技术遴选后开展无人机施药法治理互花米草试验研究。在先行试验区的一个互花米草生长季内4次施药,总结互花米草施药技术要点、质量控制要点和施药效果,并跟踪监测评估施药引起的环境风险,进而评估无人机施药法治理崇明北沿滩涂大面积互花米草的可行性。结果表明,无人机施药法治理互花米草效果明显、风险可控、质量达标,是崇明北沿大面积互花米草有序灭除的有效技术之一。

The invasion of Spartina alterniflora changes the habitat of tidal flat along Northern Chongming and threatens the ecological and environmental security of Chongming ecological island.To control the large-scale Spartina alterniflora in Northern Chongming,an experimental study to control Spartina alterniflora via spraying herbicide by drone was carried out after technical selection.The herbicide was sprayed four times in a growing season of Spartina alterniflora in the pilot area.The key points of spraying herbicide and quality control were summarized.In addition,the environmental risks caused by herbicide were tracked,monitored and evaluated.Then,the feasibility of controlling the large-scale Spartina alterniflora via spraying herbicide by drone in Northern Chongming was evaluated.The results showed that this method had obvious effect,controllable risk and reached the standard of quality,which was one of the effective techniques for orderly elimination of the large-scale Spartina alterniflora in Northern Chongming.