Anjali Trivedi

Anjali Trivedi
Birbal Sahni Institute of Palaeobotany · Quaternary climate

Ph.D.

About

37
Publications
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432
Citations

Publications

Publications (37)
Article
Full-text available
The fossil flora recovered from the Kangvai well, Ratnagiri District, Maharashtra (17°53′41″ N; 73°12′23″ E) has been used to reconstruct the monsoon variations and seasonal rainfall pattern during the Late Pleistocene (44,020 ± 390 years BP) by using the Coexistence Approach. The reconstruction suggests that the Southwest (SW) and Northeast monsoo...
Article
Multiproxy analyses of sediment samples from a 2.7 m trench from western Himalaya have helped in the reconstruction of vegetation and climatic changes during the last ∼15.2 ka. The data revealed that between 15.2 and 12.7 ka, the region supported alpine–scrubs and trees interspersed with meadows in a cool and moderately humid climate. The lowest d¹...
Article
The rise of the Himalayas governed the Indian Summer Monsoon in Karewa basin during Plio-Pleistocene. A palynological study is presented to delineate the climate-vegetation relationship using an 8.5-m thick fluvio-lacustrine sequence of the Hirpur Formation (2.4–2.1 Ma). Our results suggest that the sediment sequence is mainly comprised of two unit...
Article
Pollen, sediment texture, moisture, organic/inorganic carbon content and geochemical analyses of a 1.2m in-depth sediment profile from upper Tundabhuj Lake in the Parvati Valley show that the region supported alpine-scrub vegetation. The forest elements largely consisted of Betula and its broad-leaved allies viz., Quercus, Corylus and Carpinus inte...
Article
The Hengduan Mountains of Southwest China are considered the most biologically diverse temperate ecosystem in the world. Here, we present a ~ 10,000-year pollen record from Shuanghaizi Lake, northwestern Yunnan, which we use to reconstruct vegetation dynamics, climatic fluctuations and variability in the Indian Summer Monsoon (ISM). The results sug...
Article
Multi-proxy study of a 240 cm deep Lashoda Tal (lake) sediment profile, located adjacent to an archaeological mound in Central Ganga Plain, highlights the climate induced changes in the vegetation, ecology and culture since ∼25500 cal BP. Between ∼25500 and 22200 cal BP, the region shows grassland, incipient drainage and small ponds formed seasonal...
Article
The Holocene (11,500 cal. a B.P. to the present) is marked by the beginning of the Neolithic Age and origin of agriculture. The Holocene climatic changes no doubt influenced vegetation successions and human living conditions. However, few studies have attempted to link the palaeo-ecological data with archaeological evidence in order to understand H...
Article
Full-text available
Members of the Chenopodiaceae are the most dominant elements in the central Asian desert. The different genera and species within this family are common in desert vegetation types. Should it prove possible to link pollen types in this family to specific desert vegetation, it would be feasible to trace vegetation successions in the geological past....
Article
The temperate desert in arid Central Asia (ACA) has acted as a thoroughfare for the ancient Silk Road and today's Belt and Road, linking economic and cultural exchanges between East and West. The interaction between human sustainable development and the dynamic change in the desert ecosystem in this region is an area of concern for governments and...
Article
Full-text available
The data presented in this article are related to the research article entitled “Pollen spectrum, a cornerstone for tracing the evolution of the eastern central Asian desert” (JQSR 5260) (Lu et al., 2018) [1] In this paper, we supply a dataset, which provides a descriptive and general summary of pollen characteristic of desert dominant species in t...
Article
Pollen analysis of 10 surface samples from Kikar Tal, Raebareli District reveals the relatively higher frequencies of non-arboreals subduing the arboreals. The consistent records of Syzygium cumini with moderate frequencies among the trees, reflects its frequent presence in the flora. However, majority of the trees, Emblica officinalis, Terminalia,...
Article
Full-text available
The plants foraged by bees for honey production vary from place to place in the diverse flora of India. This paper reports a palynological study of honey from eight sites of agriculture and urbanisation in the Gangetic Plain of Uttar Pradesh (UP), and presents data from similar studies done in India. Pollen grains of 55 species were recorded in the...
Article
Full-text available
the paper embodies the modern pollen rain-vegetation relationship, based on pollen analysis of 10 surface samples from chaudhari-ka-tal, raebareli district. the pollen assemblage reveals the dominance of non-arboreals (herbs) and relatively extremely low frequencies of arboreals (trees and shrubs). among the tree taxa, average frequencies of the ma...
Article
Full-text available
We apply the coexistence approach (CoA) to reconstruct mean annual precipitation (MAP), mean annual temperature (MAT), mean temperature of the warmest month (MTWA) and mean temperature of the coldest month (MTCO) at 44 pollen sites on the Qinghai-Tibetan Plateau. The modern climate ranges of the taxa are obtained (1) from county-level presence/abse...
Article
Full-text available
Botany ABSTRACT A specific group of plants are foraged by honey bees and the honey produced is known to have related specific characteristics in clinical perspective. A palynological review of plants used by honeybees in wild conditions and a case study from eight sites in the Gangetic Plain (agricultural expanse and urbanisation) of Uttar Pradesh...
Article
Full-text available
Pollen, sediment texture and organic/inorganic carbon analyses of a 2.1 m thick sediment profile from Chaudhary-Ka-Tal (lake) of Raebareli District, reveals that around 8470 to 6422 cal BP grasslands comprising grasses, Asteraceae, Cheno/Am, with interspersed forest groves of Madhuca indica, Holoptelea integrifolia, Shorea robusta, and Acacia, thri...
Article
Full-text available
The paper embodies the modern pollen rain-vegetation relationship from sub-tropical belt, India. Palynological study was carried out on ten samples collected at sediment-water interface from lake-Bari Tal, Lucknow (UP). The quantitative and qualitative analysis of pollen and spores reveals the dominance of non-arboreals and relatively extremely low...
Data
Full-text available
Pollen analytical data generated through the analysis of two sediment cores from Mansar and Surinsar lakes, lying in the subtropical belt of Jammu region, have revealed the vegetation succession, contemporary climatic episodes and impact of anthropogenic activities in the region since Early Holocene. The pollen sequence has shown the existence of m...
Article
Full-text available
Based on radiocarbon dating, pollen grains and spores, geochemical and mineralogical parameters like texture, the climate prevailing in the area of Jalesar (Unnao) in UP, India has been deduced since about 42.5 Ky ago when the dominating vegetation was grass in a cool and dry climate. The paper based on samples from a 2.8 m deep core suggests a cha...
Article
Full-text available
Pollen and organic-inorganic carbon analyses of a 2.8 m deep sediment profile from Jalesar Tal, Unnao District, Uttar Pradesh reveal that just prior to and between 42,490 and 13,560 cal yrs BP, this region supported grassland vegetation largely comprising grasses with scanty trees of Syzygium and Prosopis under a cool and dry climate. The coarser s...
Data
Full-text available
Pollen proxy records from 1.2m deep sediment profile from Ropan Chhapra Tal, Deoria district in Uttar Pradesh have revealed that between 1350 and 600 yr BP, open grassland vegetation comprising largely grasses and heathland taxa viz., Asteraceae, Chenopodiaceae/Amaranthaceae, etc. with sprinkle of trees viz., Holoptelea, Symplocos, Acacia, etc. occ...
Data
Full-text available
Pollen analysis of honey from RDSO area (Alambag) of Lucknow has revealed a good assemblage of pollen in terms of quantity and diversity. Among the recovered taxa Syzygium cumini was the major source of nectar as marked by higher frequency (37.38%) of its pollen. In addition, Prosopis juliflora (22.7%) and P. spicigera (10%) were also frequently vi...
Data
Full-text available
The paper deals with the modern pollen ram/vegetation relationship, based on the pollen analysis of 5 surface samples gathered from Jalesar Lake, Unnao District (U.P.). The pollen assemblages reveal the dominance of non-arboreals and relatively low frequencies of arboreals trees & shrubs) Among the tree taxa, Acacia (av.6.35%) and Madhuca indica (a...
Article
Full-text available
An event of neotectonic activity on an NE–SW trending subsidiary fault in the zone of E–W running intracrustal boundary thrust (South Almora Thrust) in the Champawat district of eastern Kumaun Himalaya resulted in creation of a lake at ca. 21.5 BP. The lake drained in the late Holocene, leaving behind a 5.0 m thick sedimentary sequence of mostly bl...
Article
Full-text available
Pollen analysis of a 33.21 m deep sediment core from Surinsar lake in Jammu region has revealed that between 9,500 and 7,700 yr BP (Pollen zone SL-I), the mixed oak-broad-leaved/chirpine forest occurred in the region under a warm and humid climate. The record of aquatic plants viz. Potamogeton, Typha and freshwater alga Botryococcus in appreciable...
Article
Full-text available
Pollen analysis of a 30 m deep sediment core from Mansar Lake has revealed that around 9000–8000 yrs BP, the mixed chirpine–oak forests dominated by Pinus cf. roxburghii (chirpine) existed in the Jammu region under a cool and dry climate. Later, they were succeeded by mixed oak–chirpine forests between 8000 and 7000 yrs BP with the expansion of oak...
Article
Full-text available
An event of neotectonic activity on an NE–SW trending subsidiary fault in the zone of E–W running intracrustal boundary thrust (South Almora Thrust) in the Champawat district of eastern Kumaun Himalaya resulted in creation of a lake at ca. 21.5 BP. The lake drained in the late Holocene, leaving behind a 5.0 m thick sedimentary sequence of mostly bl...
Data
Full-text available
Study of pollen and spores retrieved from the spider webs provides interesting new frontiers to evaluate the aerospora of a region. Such studies carried out for Lucknow environs have yielded a variety of palynomorphs such as pollen grains and fungal spores besides insect body fragments, etc. These studies are of immense significance to understand t...
Article
Full-text available
Study of pollen and spores retrieved from the spider webs provides interesting new frontiers to evaluate the aerospora of a region. Such studies carried out for Lucknow environs have yielded a variety of palynomorphs such as pollen grains and fungal spores besides insect body fragments, etc. These studies are of immense significance to understand t...

Questions

Question (1)
Question
I am interested to work on the archaeological mound. So for the preparation of the digital map of the archaeological mound which software can be used?

Projects

Project (1)
Project
NECLIME is an open international network of scientists working on Cenozoic climate evolution and related changes of continental ecosystems. During the past 65 million years of Earth history, globally warmer-then-present conditions prevailed in a world with almost modern paleogeography. These timespans represent promising case studies for anticipated future scenarios. Within the NECLIME network, we aim to combine data on past climate change and its environmental impact for large-scale reconstructions. NECLIME research activities comprise paleoclimate reconstructions, including atmospheric CO₂ and ecosystem analysis using multiple quantitative methods on various primarily continental proxies (plants; vertebrates; invertebrates; geochemistry and geological proxies). Complementing model studies are employed to assess connections and processes driving ocean, atmosphere and biosphere at global and regional scales. NECLIME was established in 1999 with the aim to understand Neogene trends across Eurasia. This basic idea quickly and constantly expanded to a global interest and a wider stratigaphical frame. The steadily growing NECLIME network with currently around 140 members in 34 countries is coordinated by a team of researchers and an advisory board. NECLIME holds annual conferences and workshops and administers working groups bringing forward scientific exchange, joint projects, and the integration of research data. For more information go to www.neclime.de