Towards quantification of Holocene anthropogenic land-cover change in temperate China: A review in the light of pollen-based REVEALS reconstructions of regional plant cover

Li, Furong; Gaillard, M.J.; Cao, Xianyong; Herzschuh, Ulrike; Sugita, S.; Tarasov, Pavel E.; Wagner, Mayke; Xu, Qinghai; Ni, Jian; Wang, Weiming; Zhao, Yan; An, Chengbang; Beusen, Arthur; Chen, Fahu; Feng, Zhaodong; Goldewijk, C.G.M. Klein; Huang, Xiaozhong; Li, Yuecong; Liu, Yu; Liu, Hongyan; Sun, Anyang; Yao, Yi‐Feng; Zheng, Zhuo; Jia, Xin

doi:10.1016/j.earscirev.2020.103119

Cited by 104 publications

(91 citation statements)

References 106 publications

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“…Pollen records are widely used for the reconstruction of vegetation composition (e.g. Bartlein et al, 1984;Li et al, 2019). However, such records need to be interpreted carefully, as different taxa have different pollen productivities and dispersal abilities.…”

Section: Introductionmentioning

confidence: 99%

Compilation of relative pollen productivity (RPP) estimates and taxonomically harmonised RPP datasets for single continents and Northern Hemisphere extratropics

Wieczorek

Herzschuh

2020

Earth Syst. Sci. Data

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Abstract. Relative pollen productivity (RPP) estimates are fractionate values, often in relation to Poaceae, that allow vegetation cover to be estimated from pollen counts with the help of models. RPP estimates are especially used in the scientific community in Europe and China, with a few studies in North America. Here we present a comprehensive compilation of available northern hemispheric RPP studies and their results arising from 51 publications with 60 sites and 131 taxa. This compilation allows scientists to identify data gaps in need of further RPP analyses but can also aid them in finding an RPP set for their study region. We also present a taxonomically harmonised, unified RPP dataset for the Northern Hemisphere and subsets for North America (including Greenland), Europe (including arctic Russia), and China, which we generated from the available studies. The unified dataset gives the mean RPP for 55 harmonised taxa as well as fall speeds, which are necessary to reconstruct vegetation cover from pollen counts and RPP values. Data are openly available at https://doi.org/10.1594/PANGAEA.922661 (Wieczorek and Herzschuh, 2020).

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Section: Introductionmentioning

confidence: 99%

Compilation of relative pollen productivity (RPP) estimates and taxonomically harmonised RPP datasets for single continents and Northern Hemisphere extratropics

Wieczorek

Herzschuh

2020

Earth Syst. Sci. Data

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“…While the REVEALS model estimates regional vegetation composition within a 50–100‐km radius using pollen records from large sites or multiple small sites, the LOVE model estimates local vegetation composition within the relevant source area of pollen (RSAP; Sugita, 1994) of small sites. Thus far, RPPs have been estimated and used in LRA applications primarily in temperate woodland and grassland [see syntheses of RPPs for Europe by Broström et al (2008) and Mazier et al (2012), and for China by Li et al (2018), and REVEALS applications by, fope example, Trondman et al (2016), Dawson et al (2018) and Li et al (2020)}. Many research questions of interest to palaeoecologists require quantified plant cover values, but the REVEALS and LOVE models have not been applied in subtropical China due to the lack of values for pollen productivity.…”

Section: Introductionmentioning

confidence: 99%

Relative pollen productivities of the major plant taxa of subtropical evergreen–deciduous mixed woodland in China

Jiang

Zhang

et al. 2020

J Quaternary Science

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Quantifying the relationship between pollen and vegetation is an essential step in the pollen-based quantitative reconstruction of past vegetation cover. In this study, we use the Extended R-Value (ERV) model and a modern dataset of pollen (collected from moss polsters) and related vegetation from 50 sites in the Daba Mountains (subtropical China) to (i) estimate the relevant source area of pollen (RSAP) of the moss samples and the relative pollen productivities (RPPs) of nine major plant taxa-characteristic of the region, and (ii) evaluate the obtained RPPs. The RSAP estimates of moss polsters vary between 225 and 610 m depending on the ERV submodels and models of pollen dispersal and deposition used. The RPP estimates are different from values published in previous studies from temperate and subtropical China. This may be explained by differences in methodology, climate and vegetation (species composition and spatial distribution), of which vegetation is probably the most important factor. The ranking of the RPP estimates for the nine taxa is Pinus > Juglandaceae > D − Quercus (deciduous Quercus) > Poaceae > Rosaceae > Cyperaceae > Anacardiaceae > Castanea > Fabaceae. We use a 'leave-one-out' cross-validation strategy and the Landscape Reconstruction Algorithm (LRA) for pollen-based reconstruction of regional and local plant cover to evaluate the ERV model-based RPP estimates. Both the REVEALS (Regional Estimates of VEgetation Abundance from Large Sites)-based and the LOVE (LOcal Vegetation Estimates)-based plant cover using the RPP estimates are closer to the modern vegetation composition than pollen percentages, thus confirming the applicability of the ERV model and the LRA approach in subtropical China.Abbreviations. D LRA-obs , Euclidian distance between the LRAreconstructed and the observed local vegetation composition; D pol-obs , Euclidian distance between the pollen proportions and the observed local vegetation composition; D-Quercus, deciduous

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“…Notably, the viewpoint of a mid‐Holocene mega‐thermal and a cooling trend during the late Holocene in China was inferred mainly from records of pollen and mammalian fossils from monsoonal mainland China (Shi et al ., 1994). Recently reported results have demonstrated that pollen data, especially those during the late Holocene from regions intensively occupied by humans, could be profoundly influenced by human activity (Jenny et al ., 2019; Li et al ., 2020b,c). Notably, monsoonal mainland China is a region with a long history of intensive human activity.…”

Section: Discussionmentioning

confidence: 99%

Consistent long‐term Holocene warming trend at different elevations in the Altai Mountains in arid central Asia

Rao

Guo

Cao

et al. 2020

J Quaternary Science

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Recent results indicate contrasting Holocene moisture histories at different elevations in arid central Asia (ACA). However, relatively little is known about Holocene temperature changes at different elevations. Here we report an independently dated peat brGDGTs-based MBT' 5ME record from the Narenxia peatland (NRX) in the southern Altai Mountains. The record suggests a long-term warming trend since~7.7 cal. kyr BP, with a warmer stage during~7-5.5 cal. kyr BP, a cold stage during~5.5-4 cal. kyr BP, and a warming trend over the last~4 kyr. The longterm warming trend indicated by the NRX MBT' 5ME record is largely consistent with Holocene temperature records from nearby sites covering an altitudinal range of~1700-4100 m above sea level. This consistent long-term warming trend at different elevations differs from the long-term Holocene drying/wetting trends at high/low elevations of the Altai Mountains. We propose that the warming trend and consequent permafrost thawing at high elevations could have resulted in increased meltwater runoff, which would have contributed to the long-term wetting trend at low elevations. Our findings potentially provide an improved understanding of regional climate change and associated water resource availability, with implications for their possible future status.

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Towards quantification of Holocene anthropogenic land-cover change in temperate China: A review in the light of pollen-based REVEALS reconstructions of regional plant cover

Cited by 104 publications

References 106 publications

Compilation of relative pollen productivity (RPP) estimates and taxonomically harmonised RPP datasets for single continents and Northern Hemisphere extratropics

Compilation of relative pollen productivity (RPP) estimates and taxonomically harmonised RPP datasets for single continents and Northern Hemisphere extratropics

Relative pollen productivities of the major plant taxa of subtropical evergreen–deciduous mixed woodland in China

Consistent long‐term Holocene warming trend at different elevations in the Altai Mountains in arid central Asia

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