生态与农村环境学报2019，Vol.35Issue(2)：210-216,7.DOI:10.19741/j.issn.1673-4831.2018.0106
不同耕作方式对冬小麦田杂草群落多样性的影响
Effects of Different Tillage Methods on Weed Community Diversity in Winter Wheat Fields
摘要
Abstract
In order to analyze the impact of farmland management on the diversity of farmland weed community, a longterm observation experiment of different tillage and fertilization treatments was carried out in the farmland of Chaohu Lake in Anhui Province since 2011. Through the investigation of sample plots, the effects of different treatments on the weed species, density, dominance and other related indicators in the winter wheat field were determined. The results show that: (1) Crop straw returning could effectively reduce weed population density, and straw crushing and returning to field was better than that of straw directly returning to field, corresponding to the weed density decreased by 40％, diverse index and diversity index were increased by 30％ and 130％. (2) The dominant species in each treatment were Echinochloa hispidula and Avena fatua, and their mean values of dominance were 1. 460 6 and 2. 024 5, respectively, and their overlap with other plants exceeded 0. 721. (3) Optimization of fertilization made the diversity index of weed community increased by 35％and controlled fertilization made the diversity index increased by 75％.The experimental results show that the change of tillage and fertilization can have a significant impact on the weed community.关键词
群落多样性/农田杂草/农田管理Key words
community diversity/weeds/farmland management分类
农业科技引用本文复制引用
张震1,2,曹亚蒙1,武建勇3,马友华1,何金铃1,周迪1..不同耕作方式对冬小麦田杂草群落多样性的影响[J].生态与农村环境学报,2019,35(2):210-216,7.基金项目
国家自然科学基金(31772235) （31772235）
国家重点研发计划(2017YFD0200604,2016YFD0300205-3,2018YFD0800301-5) （2017YFD0200604,2016YFD0300205-3,2018YFD0800301-5）
安徽省自然科学基金(1508085ME91) （1508085ME91）
