基于“3S”技术的加拿大“一枝黄花”空间分布研究

Research on spatial distribution of Canada goldenrod based on "3S" technology

近几年来,加拿大一枝黄花在宁波疯狂蔓延,影响生物多样性,破坏生态平衡,造成巨大的危害。弄清加拿大一枝黄花在某一地区的空间分布,是采取各种防治措施的前提。以"3S"技术为依托,将一枝黄花的分布区类比于土地监测中的地类图斑,通过对遥感影像的处理,确定一枝黄花的空间分布地域,利用GIS软件矢量化出它的地类图斑,再针对这些地类图斑进行调查,从整体上确定一枝黄花在该地区的属性特征,并以该理论为指导,以"3S"技术为基础研究加拿大一枝黄花分布的理论模型。

The Canada goldenrod has been spread rapidly recent years, causing serious harms to biological diversity and making great damage to ecological balance. Getting to the back of the spatial distribution of Canada goldenrod is the precondition for taking measures to deal with it. The method this paper taken is borrowed from the field of land monitor based on 3S technologies. By researching with the remote sensing image, we can get the spatial distribution of Canada goldenrod. Then obtain the vector map with GIS soft- ware and field survey. It is useful for the concerned departments taking measures to deal with Canada goldenrod. The advantage of this method is that it can acquire the spatial distribution of Canada goldenrod conveniently and save a lot of labor power and material resources.