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คณะเกษตรศาสตร์ มหาวิทยาลัยเชียงใหม่

 

  ISSN: 0857-0841 (Print)
  ISSN: 2630-029X (Online)
 


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"Article Journal of Agriculture"
Volume 34 Issue 2 May 2018 , ISSN 0857-0841
Title. : Effect of Ecological Engineering System on Diversity of Insects and Spiders in Rice Paddy Field
Author : Wongduan Fakkam, Weerathep Pongprasert, Sawai Buranapanichpan, Pabhop Sinchayakul and Wichai Sorapongpisal
Page : 235-243
index word : ความหลากหลายทางชีวภาพ(Biodiversity) แมลงและแมงมุม(insect and spider) นาข้าว(rice paddy field) ระบบนิเวศวิศวกรรม(ecological engineering system)
Abstract:
The objective of this research was to study on the effect of ecological engineering in rice paddy field on diversity of insects and spiders compared to non-managed rice paddy field. The bund of RD61 rice paddy field at 2 rai was adjusted to be wider up to 1 meters and Crotalaria juncea was planted on. Insects and spiders were determined every week from seedling stage (14 days old) to harvesting stage using net sweeping method. All insects and spiders were identified, Shannon-Wiener’s diversity and distribution indices were analyzed. The relationship between number species and number of insects and spiders with abiotic factors: temperature, relative humid and rainfall and biotic factors: natural enemies were determined. The result found that the management of rice paddy field based on ecological engineering by planting C. juncea on the bund of rice paddy field affected on the ratio of species numbers and the amounts of insects and spiders, generated higher diversity that supported the more complexity, balance and stability of insect and spider activities in the rice paddy field ecosystem and finally, reduced the species and amount of rice insect pests in the managed rice paddy field.
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