Late Holocene vegetation dynamics and monsoonal climatic changes in Jammu, India
Knowledge of the Holocene Indian Summer Monsoon (ISM) variability is important for understanding the spatio-temporal dynamics of the ISM precipitation. In this study, a Late Holocene pollen proxy record of the changes in the ISM intensity from a 1.8 m deep lacustrine sedimentary deposit in Jammu Dis...
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| Format: | Article |
| Language: | English |
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W. Szafer Institute of Botany, Polish Academy of Sciences
2022-06-01
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| Series: | Acta Palaeobotanica |
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| Online Access: | https://acpa.botany.pl/Late-Holocene-vegetation-dynamics-and-monsoonal-climatic-changes-in-Jammu-India,151677,0,2.html |
| _version_ | 1828072971317542912 |
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| author | Md. Firoze Quamar |
| author_facet | Md. Firoze Quamar |
| author_sort | Md. Firoze Quamar |
| collection | DOAJ |
| description | Knowledge of the Holocene Indian Summer Monsoon (ISM) variability is important for understanding
the spatio-temporal dynamics of the ISM precipitation. In this study, a Late Holocene pollen proxy
record of the changes in the ISM intensity from a 1.8 m deep lacustrine sedimentary deposit in Jammu District
(Jammu and Kashmir State) in India is presented. The results show that between ~3205 and 2485 cal yr BP,
mixed broad-leaved/conifer forests occurred in the region under a warm and humid climate, probably indicating
high monsoon precipitation. Subsequently, the conifers, such as Pinus sp., Cedrus sp., Abies sp., Picea sp.
and Larix sp. increased comparatively and show dominance over the existing broad-leaved taxa between ~2485
and 1585 cal yr BP under a cool and dry climate with reduced monsoon precipitation. The climate further deteriorated
(towards attaining aridity under reduced monsoon condition) during ~1585 to 865 cal yr BP, which
coincides with the Dark Ages Cold Period (DACP: CE/AD 400–765; 1185–1550 cal yr BP). Since ~865 cal yr BP
(CE/AD 1085 onwards) to Present, the broad-leaved taxa, such as Alnus sp., Betula sp., Ulmus sp., Carpinus sp.,
Corylus sp. and Quercus sp. started expanding and showed their dominance over the conifers, indicating a warm
and humid climate in the region with increased monsoon precipitation. This phase partly corresponds with the
Medieval Climatic Anomaly (MCA) between CE/AD 950 and 1300. Thus, the ISM rainfall intensity is linked with
some of the global climatic trends in the present study. |
| first_indexed | 2024-04-11T01:19:21Z |
| format | Article |
| id | doaj.art-437d4a02ff144bbd9fe0369fc3c870b1 |
| institution | Directory Open Access Journal |
| issn | 2082-0259 |
| language | English |
| last_indexed | 2024-04-11T01:19:21Z |
| publishDate | 2022-06-01 |
| publisher | W. Szafer Institute of Botany, Polish Academy of Sciences |
| record_format | Article |
| series | Acta Palaeobotanica |
| spelling | doaj.art-437d4a02ff144bbd9fe0369fc3c870b12023-01-03T11:31:26ZengW. Szafer Institute of Botany, Polish Academy of SciencesActa Palaeobotanica2082-02592022-06-01621364910.35535/acpa-2022-0004151677Late Holocene vegetation dynamics and monsoonal climatic changes in Jammu, IndiaMd. Firoze Quamar0Birbal Sahni Institute of Palaeosciences, Lucknow – 226007, IndiaKnowledge of the Holocene Indian Summer Monsoon (ISM) variability is important for understanding the spatio-temporal dynamics of the ISM precipitation. In this study, a Late Holocene pollen proxy record of the changes in the ISM intensity from a 1.8 m deep lacustrine sedimentary deposit in Jammu District (Jammu and Kashmir State) in India is presented. The results show that between ~3205 and 2485 cal yr BP, mixed broad-leaved/conifer forests occurred in the region under a warm and humid climate, probably indicating high monsoon precipitation. Subsequently, the conifers, such as Pinus sp., Cedrus sp., Abies sp., Picea sp. and Larix sp. increased comparatively and show dominance over the existing broad-leaved taxa between ~2485 and 1585 cal yr BP under a cool and dry climate with reduced monsoon precipitation. The climate further deteriorated (towards attaining aridity under reduced monsoon condition) during ~1585 to 865 cal yr BP, which coincides with the Dark Ages Cold Period (DACP: CE/AD 400–765; 1185–1550 cal yr BP). Since ~865 cal yr BP (CE/AD 1085 onwards) to Present, the broad-leaved taxa, such as Alnus sp., Betula sp., Ulmus sp., Carpinus sp., Corylus sp. and Quercus sp. started expanding and showed their dominance over the conifers, indicating a warm and humid climate in the region with increased monsoon precipitation. This phase partly corresponds with the Medieval Climatic Anomaly (MCA) between CE/AD 950 and 1300. Thus, the ISM rainfall intensity is linked with some of the global climatic trends in the present study.https://acpa.botany.pl/Late-Holocene-vegetation-dynamics-and-monsoonal-climatic-changes-in-Jammu-India,151677,0,2.htmlvegetationclimatesouthwest summer monsoon (swsm)late holocenejammu and kashmirindia |
| spellingShingle | Md. Firoze Quamar Late Holocene vegetation dynamics and monsoonal climatic changes in Jammu, India Acta Palaeobotanica vegetation climate southwest summer monsoon (swsm) late holocene jammu and kashmir india |
| title | Late Holocene vegetation dynamics and monsoonal climatic changes in Jammu, India |
| title_full | Late Holocene vegetation dynamics and monsoonal climatic changes in Jammu, India |
| title_fullStr | Late Holocene vegetation dynamics and monsoonal climatic changes in Jammu, India |
| title_full_unstemmed | Late Holocene vegetation dynamics and monsoonal climatic changes in Jammu, India |
| title_short | Late Holocene vegetation dynamics and monsoonal climatic changes in Jammu, India |
| title_sort | late holocene vegetation dynamics and monsoonal climatic changes in jammu india |
| topic | vegetation climate southwest summer monsoon (swsm) late holocene jammu and kashmir india |
| url | https://acpa.botany.pl/Late-Holocene-vegetation-dynamics-and-monsoonal-climatic-changes-in-Jammu-India,151677,0,2.html |
| work_keys_str_mv | AT mdfirozequamar lateholocenevegetationdynamicsandmonsoonalclimaticchangesinjammuindia |