西樵山国家森林公园有害植物现状分析

The present situation of the harmful plant in Xiqiao mountain National Forest Park

结合西樵山国家森林公园管理公司提供的植被及道路图,运用面上调查和点调查相结合的方法对西樵山国家森林公园的有害植物进行了系统和全面的调查,对西樵山国家森林公园的有害植物危害现状进行了分析。调查结果显示,西樵山国家森林公园有害植物共有25种,录属19科25属,包括本地种20种,外来种5种,达到严重危害的有19种。本地植物成灾面积达56万m2,外来植物成灾面积14万m2,本地植物与外来植物的成灾比例是4∶1。针对主要的15种有害植物,对其分布、危害面积与危害特点进行了逐一分析与描述。根据西樵山国家森林公园有害植物的危害现状的分析,本地植物的危害程度和范围都比外来植物大得多,并分析了西樵山国家森林公园有害植物的发展趋势。

Using the point, line and plot methods, we investigated the harmful plants in Xijiao,Foshan, based on the vegetation and road maps supplied by Xiqiao mountain National Forest Park. We analyzed the destructive status of the harmful plant. The results showed that there were twenty-five harmful plant species from 19 families and 25 genus. Of the 25 harmful plants, 20 are indigenous and 5 are nonindigenous. The damaged degree of nineteen plant species reached Ⅲ grade. The damaged area of indigenous is 560 000 m2, and that of nonindigenous plants is 140 000 m2. The proportion of the indigenous and the nonindigenous is 4∶1. According to the destructive status analysis of the harmful plant, the damaged degree and area of the indigenous are larger than nonindigenous. To the main 15 harmful plants, we described their distribution, damaged area and damaged condition one by one. We also discussed the tendency of the harmful plants in this region.