摘要
对太谷地区枣园不同生态系统中节肢动物群落优势功能集团的空间时序动态及其相关性进行了研究 ,结果表明 ,在五种生境类型的枣园中各功能集团在空间的分布有一定的规律性 ;枣园间作物 (或杂草的有无 )和用药与否对功能集团的空间分布结构影响不明显。在不同生态环境中 ,节肢动物群落各营养层在时间和空间上所占的比例是不同的 ;但在同一营养水平上分布是相关的 ,这种相关性揭示了中性昆虫在群落食物网中起着重要的作用 ,可见综合防治既要保护和利用天敌 ,又要保护和利用中性昆虫。
The seasonal dynamics of vertical distribution of the dominant guilds and their relation in the arthropod community in different intercropped and managed jujube yard ecosystems in Taigu were studied. The results showed that there were some laws of vertical distribution of the dominant guilds in the arthropod community in the jujube yard ecosystems. There was no obvious influence of the dominant guilds on vertical distribution of the arthropod community whether insecticide was used or not or there were weeds or not. In the different ecosystems, the proportions of guilds of the arthropod community were different seasonally and spatially, and there was some relation at the same nutrient level. The relation revealed that the neutral insects played an important role in the food web of the arthropod community. For this reason, the protection and use of natural enemies and neutral insects were equally important in the control of insect pests.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2003年第4期78-83,共6页
Scientia Silvae Sinicae
基金
国家自然科学基金资助项目 ( 3 0 170 75 9)
山西省归国留学人员基金资助项目
