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Effects of water level on the establishment and growth of Sparganium erectum

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dc.contributor.advisor김재근-
dc.contributor.author김서현-
dc.date.accessioned2017-07-19T02:58:26Z-
dc.date.available2017-07-19T02:58:26Z-
dc.date.issued2015-02-
dc.identifier.other000000025577-
dc.identifier.urihttps://hdl.handle.net/10371/128044-
dc.description학위논문 (석사)-- 서울대학교 대학원 : 과학교육과, 2015. 2. 김재근.-
dc.description.abstractHabitat environmental conditions for identifying the adult niche of Sparganium erectum were investigated in a field survey. The effect of water level on germination, establishment and growth of S. erectum seedlings was evaluated to identify the early life cycle in mesocosm experiments. In a field survey, the height and coverage of population B (living in deeper water) were greater than those of population A (living in shallow water). Means of water and soil environmental properties were not significant at p ≤ 0.05 between the two populations. In mesocosm experiments, I found no correlation between water levels and germination rates, but S. erectum seedlings have characteristics of post germination seedling buoyancy when germinated in inundation conditions. Shoot height, total leaf length and survival rates of sinking seedlings in shallow water levels at -5, 0, and 5 cm were higher than those in deeper water levels at 10 and 20 cm. Floating seedlings established in water levels of 3 and 6 cm only. The seedlings could live up to six weeks but died if they were unable to establish. I concluded that the water level around adult S. erectum populations in the field were different from the water level at which S. erectum seedlings can survive in the mesocosm experiments. The findings provided not only understanding of S. erectum habitat characteristics but also evidence to connect historical links between the early seedlings stage and adult habitat conditions.-
dc.description.tableofcontentsABSTRACT
CONTENTS
1. Introduction 1
2. Materials and methods 5
2.1 Field Study 5
2.1.1 Vegetation survey 5
2.1.2 Analysis of water and soil properties 6
2.1.3 Statistical analysis 6
2.2 Mesocosm experiments 7
2.2.1 Germination experiment 7
2.2.2 Seedling establishments 8
2.2.3 Statistical analysis 10
3. Results 11
3.1 Field Study 11
3.2 Mesocosm experiments 15
3.2.1 Effects of water level on germination 15
3.2.2 Effects of water level on establishment 16
3.2.2.1 Planted seedlings 16
3.2.2.2 Floating seedlings 20
4. Discussion 24
5. Conclusions 27
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dc.formatapplication/pdf-
dc.format.extent908071 bytes-
dc.format.mediumapplication/pdf-
dc.language.isoen-
dc.publisher서울대학교 대학원-
dc.subjectadult niche-
dc.subjecthabitat environment-
dc.subjectregeneration niche-
dc.subjectseedling establishment-
dc.subject.ddc507-
dc.titleEffects of water level on the establishment and growth of Sparganium erectum-
dc.typeThesis-
dc.description.degreeMaster-
dc.citation.pagesvii, 39-
dc.contributor.affiliation사범대학 과학교육과-
dc.date.awarded2015-02-
Appears in Collections:
College of Education (사범대학)Dept. of Science Education (과학교육과)Biology (생물전공)Theses (Master's Degree_생물전공)
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