Plant Phytomass Changes in a Lar ch Forest of the Lake Hövsgöl Area, Northern Mongolia
In the present study we related the decrease of the vegetation productivity in a larch forest with an increase of the air temperature over a 20-year period (1987-2007). During the years of the study the data from nearby weather stations showed warming and drying trends in climatic conditions: a...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
National University of Mongolia
2007-12-01
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| Series: | Mongolian Journal of Biological Sciences |
| Subjects: | |
| Online Access: | http://mjbs.num.edu.mn/uploads/files/MJBS%20Volume%205%20Number%201-2%20December%202007/pdf/mjbs005-01-02-07.pdf |
| Summary: | In the present study we related the decrease of the vegetation productivity in a larch forest with an
increase of the air temperature over a 20-year period (1987-2007). During the years of the study the data
from nearby weather stations showed warming and drying trends in climatic conditions: a 1.6
0
C increase
of mean annual temperature, increase in maximum and minimum temperature extremes, and delay of
summer rains. Plant community changes include the shift in species dominance from mesophytes to
xerophytes, decrease in vegetation cover and plant height, and transformation of a single July blooming
peak to the more diffuse blooming season.
We
also showed the plant phytomass of the larch forest of
the Hövsgöl region is decreasing in response to the climate changes. |
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| ISSN: | 1684-3908 2225-4994 |