贵州花江峡谷地区花椒林地杂草研究

本文对花江峡谷地区花椒水保经济林林下的杂草进行了系统的调查研究。研究结果表明:该地区花椒林下现共有杂草60种,分属22科49属,其中26种为一年生草本,占总数的43%,23种为多年生草本,占占总数的39%,显示该地区花椒林下土壤表面植物覆被度季节差异十分显著。花江花椒林下的杂草中重要值达到或超过0.1的有19种,占总数的31.6%。此外,文中对花椒林下杂草多样性的水土保持和控制农业病虫害方面的功能进行了探讨,提出了以刈割为主的杂草处理方式保护农业生物多样性。

A STUDY ON WEEDS UNDER THE ZANTHOXYLUM PLANISPINUM WOODS FIELD IN HUAJIANG VALLEY AREA

We investigated and analyzed the weeds under the Zanthoxylum planispinum eco-economic woods inHuajiang valley areain this article. The results show that there are 60 kinds of weeds intotal under the woods of Zanthoxylum planispinuminthis area now, belonging to 49 genera of 22 families, 26 kinds among them are annual herbaceous, accounting for 43% of the total, 23 kinds are perennial herbaceous, accounting for 39%. It shows thatplant covery degreeson soil surfaceunderwoodsof Zanthoxylum planispinum arevariaed remarkablly with the season change in this area. There are 19species of weeds with important value reaching or exceeding0.1 under the woods of Zanthoxylum planispinum,accounting for the 31.6% of total amount. In addition,we probed the function of weed diversity to water soil conservation and control of agricultural diseases insect pests under the woods of Zanthoxylum planispinumin the article. Cutting as the main method to deal with the weeds has been suggested.