种植制度对开封和封丘地区麦田杂草群落结构和生物多样性的影响  

Effects of Cropping Systems on Community Structure and Biodiversity of Weeds in Wheat Fields in Kaifeng and Fengqiu Districts

作　　者：谷艳芳[1] 胡楠[2] 丁圣彦[1] 张丽霞[2] 李俊娇[2] 

机构地区：[1]河南大学生态科学与技术研究所,河南开封475001 [2]河南大学生命科学学院,河南开封475001

出　　处：《河南大学学报（自然科学版）》2007年第4期391-394,共4页Journal of Henan University:Natural Science

基　　金：国家重点基础研究发展计划(973)项目;河南省科技攻关资助项目(0624080002)联合资助

摘　　要：2005、2006年4～5月份,对开封和封丘地区的小麦-玉米和小麦-水稻两种种植制度条件下冬小麦麦田杂草群落结构进行调查和统计分析.结果表明,两种种植制度麦田杂草种群相似性系数分别是0.65和0.51.二者相比较,小麦-玉米种植制田间杂草优势集中度较低,生物多样性较高,表现为物种丰度高15%～24%,生物多样性高11%～37%,均匀度与种植制度的关系不显著.From April to May of 2005 and 2006, investigations and statistical analyses in Kaifeng and Fengqiu were conducted on weed community in winter wheat fields with different cropping systems, including wheat-corn and wheat-rice fields. The results showed that coefficient of species similarity between wheat-corn and wheat-rice fields in Kaifeng and Fengqiu were 0.65 and 0.51. Compared to wheat-rice, the dominance of weeds in wheat-corn was lower, and biodiversity was higher, the species abundance was 15%-24% and biodiversity was 11%-37%. However, the relation between cropping systems and uniformity was not significant.

关 键 词：种植制度 杂草 群落结构 生物多样性 

分 类 号：S181[农业科学—农业基础科学] S451