Study of Species Diversity of Non-Crop Plants in Organic Paddy Field: A Case Study in Nakhon Pathom Province
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Abstract
Paddy field is an agricultural ecosystem that has been associated with the Thai way of life for a very long time. Cultures and lifestyles of Thai people in different areas lead to their own styles of rice farming such as conventional rice farming using chemicals and organic rice farming which is generally believed to promote biodiversity and human health sustainably. However, study of species diversity of non-crop plants in organic paddy fields in Thailand is limited. Therefore, this research aimed to study the diversity of non-crop plants in an 8 rai of organic paddy field using parachute rice transplanting technique, located in Don Tum district, Nakhon Pathom province. The survey was conducted in 2 planting seasons, from January to December 2015, in flooded areas and levees (earthen dykes) for every 2 weeks. For the survey of flooded areas, 6 plots with the size of 0.5 m x 2 m (each) were used. They were 100 m apart from each other. On the other hand, observation survey was used for levee survey. From the survey, a total of 28 families and 61 species of non-crop plants were observed. In the first planting season (January to May), 9 families and 17 species were found in the flooded areas while 18 families and 40 species were found in the levees. In the second planting season (August to December), 10 families and 16 species were found in the flooded areas while 20 families and 45 species were found in the levees. The dominant species in the flooded areas was Cyperus difformis L. and in the levees was Urochloa mutica (Forssk.) T.Q.Nguyen. The Sorenson’s similarity coefficient indices between non-crop plants found in flooded areas and levees was 25.35%, between non-crop plants found in flooded areas in planting season 1 and planting season 2 were 78.79%, and between non-crop plants found in levees in planting season 1 and planting season 2 were 80.0%. The most abundant plant family was grass family (Poaceae), which 11 species were found, followed by sedge family (Cyperaceae), which 8 species were found. Plant biodiversity data in organic paddy field provided from this study will be useful for planning the sustainable management of organic paddy field ecosystem in Nakhon Pathom province and nearby areas, resulting in an equilibrium between agricultural productivity and conservation.
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บทความที่ได้รับการตีพิมพ์เป็นลิขสิทธิ์ของ วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยอุบลราชธานี
ข้อความที่ปรากฏในบทความแต่ละเรื่องในวารสารวิชาการเล่มนี้เป็นความคิดเห็นส่วนตัวของผู้เขียนแต่ละท่านไม่เกี่ยวข้องกับมหาวิทยาลัยอุบลราชธานี และคณาจารย์ท่านอื่นๆในมหาวิทยาลัยฯ แต่อย่างใด ความรับผิดชอบองค์ประกอบทั้งหมดของบทความแต่ละเรื่องเป็นของผู้เขียนแต่ละท่าน หากมีความผิดพลาดใดๆ ผู้เขียนแต่ละท่านจะรับผิดชอบบทความของตนเองแต่ผู้เดียว
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