Community Structure and Regulatory Mechanism of Pest Populations in Rice Paddies Cultivated Under Intensive, Traditionally Organic and Lower Input Organic Farming in Japan
Community Structure and Regulatory Mechanism of Pest Populations in Rice Paddies Cultivated Under Intensive, Traditionally Organic and Lower Input Organic Farming in Japan
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日本集约化、传统有机、低投入有机农业稻田害虫种群群落结构及调控机制
DOI：
10.1080/01448765.1997.9755180
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发表时间：
1997
影响因子：
1.5
通讯作者：
K. Hidaka
中科院分区：
文献类型：
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作者：
K. Hidaka
摘要以日本西南部Chugoku地区3种不同的水稻生产系统为研究对象，研究节肢动物群落结构和害虫调控机制的差异。在较古老的传统有机稻田中，褐稻Nilaparvata lugens并不常见，并受到定居线虫寄生虫Agamermis unka的控制。而在集约化稻田中，褐僵菌数量非常丰富，没有褐僵菌。集约化稻田与较年轻的传统稻田之间没有差异。此外，稻田中蜘蛛和弹虫种群的丰度差异不明显。在免耕和冬季豆科植物覆盖的低投入有机耕作系统中，Sogatella furcifera的数量要少得多，而最重要的捕食者——久坐的石松类的数量要比传统管理的水稻丰富得多。低投入有机系统中不存在绿僵菌，而低投入有机系统中不存在褐僵菌。这些seden…
ABSTRACT Three different rice production systems in the Chugoku district of southwestern Japan were compared to characterize differences in the arthropod community structures and insect pest regulatory mechanisms. In older traditionally organic rice paddy fields, Nilaparvata lugens was uncommon and was controlled by the sedentary nematode parasite, Agamermis unka. In contrast, in intensively farmed rice paddies, N. lugens was very abundant and A. unka was absent. There were no differences between the intensive paddies and younger traditional paddies. In addition, differences of abundance in spider and collembola populations were not clear in these paddies. In lower-input organic farming systems with no-tillage and winter legume mulch, Sogatella furcifera was much less abundant, and the most important predators, sedentary lycosids, were much more abundant than in the traditionally managed paddy. Densities of N. lugens were similar, but A. unka was not present in the lower-input organic systems. These seden...