Vegetation response to Holocene climate change in monsoon-influenced region of China

Zhao, Yan; Yu, Zicheng; Chen, Fahu; Zhang, Jiawu; Yang, Bao

doi:10.1016/j.earscirev.2009.10.007

Cited by 272 publications

(153 citation statements)

References 64 publications

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“…4). Furthermore the trend of records with an apparent human impact perfectly matches a significant increase in residuals following Procrustes analysis, meaning that the largest difference between pollen and non-pollen based records for the last 1000 years might be caused by the progressive importance of anthropogenic activity which is consistent with the results of Zhao et al (2009). The main focus of our study has been on climate change whilst exploring the impact of humans was a secondary aim in order to assess the reliability of the climatic inferences.…”

Section: Reliability Of Climate Inferences From Proxy Records In Monssupporting

confidence: 79%

“…Moreover, owing to the qualitative nature of the palaeoclimatic records, it is impossible to translate this information on a finer climatic scale. The moisture (warmth) scales are relative, in a semi-quantitative sense and are only applicable to each individual site (Chen et al, 2008;Zhao et al, 2009). Relative moisture (warmth) sequences were constructed for each 100-year interval during Holocene period (12-0 cal.…”

Section: Inferences Of Moisture and Warmth Indices For Palaeoclimaticmentioning

confidence: 99%

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Asynchronous evolution of the Indian and East Asian Summer Monsoon indicated by Holocene moisture patterns in monsoonal central Asia

Wang

Liu

Herzschuh

2010

Earth-Science Reviews

298

111

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a b s t r a c t a r t i c l e i n f oThe numerical meta-analysis of 92 proxy records (72 sites) of moisture and/or temperature change confirms earlier findings that the dominant trends of climatic evolution in monsoonal central Asia since the Last Glacial roughly parallel changes in Northern Hemisphere summer insolation, i.e. the period following the Last Glacial Maximum was characterized by dry and cold conditions until 15 cal. kyr BP, followed by a warm, wet period coincident with the Bølling/Allerød warm period and terminated by a cold, dry reversal during the Younger Dryas period. After an abrupt increase at the start of the Holocene, warm and wet conditions prevailed until ca. 4 cal. kyr BP when moisture levels and temperatures started to decrease. Ordination of moisture records reveals strong spatial heterogeneity in moisture evolution during the last 10 cal. kyr. The Indian Summer Monsoon (ISM) areas (northern India, Tibetan Plateau and southwest China) exhibit maximum wet conditions during the early Holocene, while many records from the area of the East Asian Summer Monsoon indicate relatively dry conditions, especially in north-central China where the maximum moisture levels occurred during the mid-Holocene. We assign such phenomena to strengthened Hadley Circulation centered over the Tibetan Plateau during the early Holocene which resulted in subsidence in the East Asian monsoonal regions leading to relatively dry conditions. Our observations of the asynchronous nature of the two Asian monsoon subsystems on millennial time scales have also been observed on annual time-scales as well as implied through the spatial analysis of vertical air motion patterns after strong ascending airflows over the Tibetan Plateau area that were calculated from NCEP/NCAR reanalysis data for the last 30 years. Analogous with the early Holocene, the enhancement of the ISM in a 'future warming world' will result in an increase in the asynchronous nature of the monsoon subsystems; this trend is already observed in the meteorological data from the last 15 years.

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Section: Reliability Of Climate Inferences From Proxy Records In Monssupporting

confidence: 79%

Section: Inferences Of Moisture and Warmth Indices For Palaeoclimaticmentioning

confidence: 99%

Asynchronous evolution of the Indian and East Asian Summer Monsoon indicated by Holocene moisture patterns in monsoonal central Asia

Wang

Liu

Herzschuh

2010

Earth-Science Reviews

298

111

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“…Located in a water-stressed region, the vegetation succession pattern of the forest-steppe ecotone in north China during the Holocene also showed four stages dominated by birch, oak, pine and grass [27], but the mechanism of the evolution was not exactly the same as that of the above-mentioned vegetation cycles on sandy dunes. Control of hydrological and thermal conditions by the East Asian summer monsoon intensity was critical for vegetation evolution in China [28][29][30]. After the middle Holocene, vegetation susceptibility to precipitation change increased, while sensitivity to temperature was lost, leading to increased drought stress.…”

Section: Modes Of Vegetation Response To Past Climate Changementioning

confidence: 99%

Response of forest distribution to past climate change: An insight into future predictions

Liu

Yin

2013

Chin. Sci. Bull.

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Vegetation dynamics could lead to changes in the global carbon and hydrology cycle, as well as feedbacks to climate change. This paper reviews the response of forest dynamics to climate change. Based on palaeoecological studies, we summarized the features and modes of vegetation response to climate change and categorized the impacts of climate change on vegetation dynamics as three types: climate stress on vegetation, buffer effects by non-climatic factors, and perturbation of the vegetation distribution by stochastic events. Due to the openness of the vegetation system and the integrated effects of both climatic and non-climatic factors, the vegetation-climate relationship deviates far from its equilibrium. The vegetation distribution shows a non-linear response to climate change, which also makes it difficult to quantify the modern vegetation distribution in terms of specific climatic factors. Past analog, space-for-time-substitution and Dynamic Global Vegetation Models (DGVMs) are three approaches to predicting the future vegetation distribution, but they have all been established on the assumption of vegetation-climate equilibrium. We propose that improving DGVMs is a future task for studies of vegetation dynamics because these are process-based models incorporating both disturbance (e.g. fire) and the variability in Plant Functional Types (PFTs). However, palaeoecological results should be used to test the models, and issues like spatial and temporal scale, complexity of climate change, effects of non-climatic factors, vegetation-climate feedback, and human regulation on vegetation dynamics are suggested as topics for future studies. . Will global warming lead to the expansion or decline of forests in the future? Will measures taken to address climate change concerns, such as the forestation of grasslands, successfully expand the distribution of the forest or have the reverse effect? These scientific and practical questions have been the focus of extensive discussion in the scientific community [5]. In China, for example, as an adaptation to climate change, the area covered by forest will increase from the current 20% to 23% in 2020. Due to the lack of physical space in the wet climate zone, much planting is taking place in the current forest-steppe ecotone [6]. Will the future climate benefit forests in the current forest-steppe ecotone? To answer this question we need to make accurate predictions of future climate forcings of vegetation dynamics. Vegetation dynamics in the past and present are critical to predictions of vegetation response to climate change in the future [7]. Through a review of previous work, we have attempted to summarize the general principles and modes of vegetation response to climate change, and to explore how to accurately predict climate-induced changes in vegetation under the future climate change scenarios.

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“…Recent studies have attempted to decipher the phase relationship between the two monsoonal systems; however, evidence for both an in-phase (Zhao et al, 2009;Zhang et al, 2011) and an anti-phase (Hong et al, 2005;Wang et al, 2010) relationship during the Holocene has been proposed. Furthermore, few studies have considered the phase relationship between the two during the last glacial.…”

Section: Phase Relationship Between Ism and Easmmentioning

confidence: 99%

“…Indeed, recent studies have focused on the phase relationship between the evolutions of these monsoon systems during the Holocene to decipher their global and local driving forces; however, the results are debated. Zhao et al (2009) and Zhang et al (2011) inferred a broadly synchronous climatic evolution throughout the Holocene across the two monsoon regions by synthesizing fossil pollen and carbonate d 18 O records in monsoonal China. In contrast, after reviewing 75 sets of time series data from central Asia relating to Holocene moisture patterns, Herzschuh (2006) suggested the asynchronous evolution of the ISM and EASM.…”

Section: Introductionmentioning

confidence: 99%

Evolution of the Indian summer monsoon during the interval 32.7–11.4cal. ka BP: Evidence from the Baoxiu peat, Yunnan, southwest China

Huang

Wei

et al. 2016

Journal of Asian Earth Sciences

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Vegetation response to Holocene climate change in monsoon-influenced region of China

Cited by 272 publications

References 64 publications

Asynchronous evolution of the Indian and East Asian Summer Monsoon indicated by Holocene moisture patterns in monsoonal central Asia

Asynchronous evolution of the Indian and East Asian Summer Monsoon indicated by Holocene moisture patterns in monsoonal central Asia

Response of forest distribution to past climate change: An insight into future predictions

Evolution of the Indian summer monsoon during the interval 32.7–11.4cal. ka BP: Evidence from the Baoxiu peat, Yunnan, southwest China

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