Life-form characteristics and biological spectrum of the aquatic macrophytes in Ṭam Dil, a natural lake in Mizoram

DOI

10.2991/msc-18.2018.9How to use a DOI?

Keywords

Life-form, biological spectrum, macrophytes, Ṭam Dil, Mizoram

Abstract

Ṭam Dil is a natural lake but reconstructed as fish pond at Saitual, Mizoram. The area around the lake enjoys a moderate climate owing to its tropical location. It receives an adequate amount of rainfall. It is also fed by small streams from surrounding catchment area. During the present investigation, sixteen aquatic macrophytic species were found in the lake. The plants were categorized into submerged, rooted with floating leaves, free-floating, and emergent groups. Life-form of the macrophytic vegetation were determined based on the height, form, habit and nature of the position and degree of protection of the perennating buds together with occurrence of each species in the field. Life-forms were classified as chamaephytes, hemicryptophytes, geophytes, therophytes and errant vascular hydrophytes. Therophytes had the greatest number of species, such as Alternanthera philoxeroides, Alternanthera sessiles, Brachiaria mutica, Echinochloa stagnina, Kyllinga tenuifolia, Leersia hexandra and Polygonum glabrum. Errant vascular hydrophytes had three species such as Ceratophyllum demersum, Eichhornia crassipes and Marsilea quadrifoliata. Also, three species of hemicryptophytes, namely Commelina bengalensis, Enhydra fluctuans and Hygroryza aristata were identified. Geophytes was represented by Nymphaea pygmaea helvola and Zizania latifolia. Only one species Phragmites karka belong to chamaephytes. Thus, therophytes dominated over the other life-forms classes. Therefore, the lake may be designated as therophytes type of phytoclimate.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - K. Khelchandra Singh
AU  - J. C. Zirthangmawia
AU  - Khuraijam Usha
AU  - Kulendra Ch. Das
PY  - 2018/12
DA  - 2018/12
TI  - Life-form characteristics and biological spectrum of the aquatic macrophytes in Ṭam Dil, a natural lake in Mizoram
BT  - Proceedings of the Mizoram Science Congress 2018 (MSC 2018) - Perspective and Trends in the Development of Science Education and Research
PB  - Atlantis Press
SP  - 52
EP  - 55
SN  - 2352-5401
UR  - https://doi.org/10.2991/msc-18.2018.9
DO  - 10.2991/msc-18.2018.9
ID  - Singh2018/12
ER  -