Zhisheng An
Dados Biográficos
| ID | 4021519 |
|---|---|
| NOME | Zhisheng An |
| PRENOMES | Zhisheng |
| SOBRENOME | An |
| ASSINATURA | AN Z |
| AFILIAÇÕES | State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science Beijing Normal University Beijing China |
| VERIFICADO | Não |
| TOTAL DE OBRAS | 50 |
| TOTAL DE CITAÇÕES | 215 |
| TOTAL COMO AUTOR | 50 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1989 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2024 |
| ÍNDICE H | 4 |
Landscape and Soil Erosion Changes Along Different Types of Road Over the Past 30 Years in the Largest Loess Tableland of China
Road construction, as a product of modern civilization, can alter landscape patterns and accelerate erosion, especially in the loess tableland area of China with fragile eco‐environment. Different types of road could change land surface and increased soil erosion in different ways, while knowledge about this topic is limited. In this study, our objective is to evaluate the landscape and soil erosion changes along different types of road in the la…
Sharp decline of dust events induces regional wetting over arid and semi-arid Northwest China in the NCAR Community atmosphere model
Multiple lines of observational evidence have indicated a significant wetting over the arid and semi-arid Northwest China (NWC) during recent decades, coinciding with a simultaneous sharp decline of dust events. Although recent studies have attributed NWC wetting to different anthropogenic and natural forcings, the mechanisms are not definitive and the regional wetting has been greatly underestimated in the Coupled Model Intercomparison Project h…
Spatiotemporal trends in lead pollution worldwide over the past millennium
Climatic control of orbital time-scale wildfire occurrences since the late MIS 3 at Qinghai Lake, monsoon marginal zone
Mineral magnetic record of the Miocene-Pliocene climate transition on the Chinese Loess Plateau, North China
Pre-Quaternary terrestrial climate variability is less well understood than that during the Quaternary. The continuous eolian Red Clay sequence underlying the well-known Quaternary loess-paleosol sequence on the Chinese Loess Plateau (CLP) provides an opportunity to study pre-Quaternary terrestrial climate variability in East Asia. Here, we present new mineral magnetic records for a recently found Red Clay succession from Shilou area on the easte…
Responses of Enso and NAO to the external radiative forcing during the last millennium
Reevaluation of carbonate concentration and oxygen isotope records from Lake Qinghai, the northeastern Tibetan Plateau
Microcodium in Chinese loess as a recorder for the oxygen isotopic composition of monsoonal rainwater
Hydrological changes in Shuangchi Lake, Hainan Island, tropical China, during the Little Ice Age
The linkages with fires, vegetation composition and human activity in response to climate changes in the Chinese Loess Plateau during the Holocene
Geochemical characteristics of surface dune sand in the Mu Us Desert, Inner Mongolia, and implications for reconstructing the paleoenvironment
Hydrogen isotopic compositions of long-chain leaf wax n-alkanes in Lake Qinghai sediments record palaeohydrological variations during the past 12 ka
The age of human remains and associated fauna from Zhiren Cave in Guangxi, southern China
Peatland development and climate changes in the Dajiuhu basin, central China, over the last 14,100 years
Stephen C. Porter, 1934–2015
the long-term former editor of Quaternary Research and a leader in the development of interdisciplinary Quaternary science, died in Santa Barbara, California, on February 19, 2015, at the age of 80.Porter became a widely respected and influential Quaternary scientist through geographically diverse research, international scientific leadership, and a long career at the University of Washington, starting in 1962.He was born and raised in Santa Barb…
When did the Anthropocene begin? A mid-twentieth century boundary level is stratigraphically optimal
Magnetic parameter variations in the Chaona loess/paleosol sequences in the central Chinese Loess Plateau, and their significance for the middle Pleistocene climate transition
A high-resolution rock magnetic investigation was performed on the Chaona Quaternary loess/paleosol sequences in the Central Chinese Loess Plateau. Based on a newly developed independent unturned time scale and magnetic records, we reconstructed the history of the East Asia monsoons during the last 3 Ma and explored the middle Pleistocene climate transition (MPT). Rock magnetic results show that the loess layers are characterized by relatively hi…
Trace-element variations in an annually layered stalagmite as recorders of climatic changes and anthropogenic pollution in Central China
We analyzed variations in the Sr/Ca, Ba/Ca, REE/Ca (REE: rare earth element), Zn/Ca, and Pb/Ca ratios preserved in an annually layered stalagmite, XL21, from central China. The stalagmite record spans the 95 year period AD 1914–2008. The Sr/Ca and Ba/Ca ratios have a significant positive correlation with the stalagmite's growth rate, suggesting that they were primarily controlled by growth-rate variations. Variations in REE/Ca ratios are consiste…
Quaternary structural partitioning within the rigid Tarim plate inferred from magnetostratigraphy and sedimentation rate in the eastern Tarim Basin in China
It has been proposed that within the Tarim Basin tectonic activity has been limited since Triassic time. However, on the basis of magnetostratigraphy from the eastern Tarim Basin, which defines the chronology of sedimentation and structural evolution of the basin, we show that the basin interior has been uplifted and partitioned during Quaternary. The magnetostratigraphy was constructed from 2228 samples that yielded acceptable inclination values…
High secondary aerosol contribution to particulate pollution during haze events in China
Distribution and composition of loess sediments in the Ili Basin, Central Asia
C Chronostratigraphy for Qinghai Lake in China
Radiocarbon accelerator mass spectrometry (AMS) techniques were used to date total organic carbon and plant seeds in the lFs core sequence (36°48′N, 100°08′E) from Qinghai Lake, China. This core was drilled ∼18 m into Qinghai Lake sediments as part of an international cooperative research project, “Scientific Drilling at Qinghai Lake in the Northeastern Tibetan Plateau: High-Resolution Paleoenvironmental Records of Eastern Asia Linked to Global C…
Interplay between the Westerlies and Asian monsoon recorded in Lake Qinghai sediments since 32 ka
Two atmospheric circulation systems, the mid-latitude Westerlies and the Asian summer monsoon (ASM), play key roles in northern-hemisphere climatic changes. However, the variability of the Westerlies in Asia and their relationship to the ASM remain unclear. Here, we present the longest and highest-resolution drill core from Lake Qinghai on the northeastern Tibetan Plateau (TP), which uniquely records the variability of both the Westerlies and the…
The variation of summer monsoon precipitation in central China since the last deglaciation
Major ion chemistry of waters in Lake Qinghai catchments, NE Qinghai-Tibet plateau, China
When did the Anthropocene begin? A mid-twentieth century boundary level is stratigraphically optimal
C Chronostratigraphy for Qinghai Lake in China
Radiocarbon accelerator mass spectrometry (AMS) techniques were used to date total organic carbon and plant seeds in the lFs core sequence (36°48′N, 100°08′E) from Qinghai Lake, China. This core was drilled ∼18 m into Qinghai Lake sediments as part of an international cooperative research project, “Scientific Drilling at Qinghai Lake in the Northeastern Tibetan Plateau: High-Resolution Paleoenvironmental Records of Eastern Asia Linked to Global C…
Chronology of the Baxie Loess Profile and the History of Monsoon Climates in China Between 17,000 and 6000 Years BP
The valley of the Baxie River, situated in the western region of the Loess Plateau in central China, contains a loess profile 15 m thick, which can be considered representative of loess-paleosol sequences formed over the last 17 ka. Both thermoluminescence (TL) determinations on fine-grained sediment (4–11 μm) and 14 C determinations on various organic fractions of paleosols from the profile have provided an extremely useful chronological framewo…
Stratigraphic Division of Holocene Loess in China
Loess deposition within the Loess Plateau of China records the history of environmental change over the last 2.5 Myr. Loess-paleosol sequences of the last 10 ka, which have preserved information of global climate change, relate closely to human occupation of the area. Hence, studies of the deposition and development of Holocene loess are significant for studying environmental change and problems associated with engineering geology. We present her…
Reconstruction of 130-kyr Relative Geomagnetic Intensities from 10 Be in Two Chinese Loess Sections
Efforts to extract weak geomagnetic excursion signals from Chinese loess-paleosol 10 Be have generally been unsuccessful due to the complexities of its accumulation, because the geomagnetic and climate (precipitation and dust) signals contained in loess-paleosol sequence are tightly overprinted. Here, we present a reconstruction of geomagnetic relative paleointensities for the past 130 kyr from 10 Be records in 2 Chinese loess-paleosol sections u…
Distribution of 14 C and 13 C in Forest Soils of the Dinghushan Biosphere Reserve
We report here first results on the bulk soil organic carbon (SOC), apparent radiocarbon ages and δ 13 C characteristics of the tropical and subtropical forest soil in Dinghushan Biosphere Reserve (DHSBR). The forest oxisol in Dinghushan has developed during the Holocene. The δ 13 C variation curves in all three profiles may be divided into two sections. The upper section from 0 to 40 cm has δ 13 C values varying from −27.4 to −24.1‰, −27.5 to −2…
Loess stratigraphy in Central China
Magnetic susceptibility evidence of monsoon variation on the Loess Plateau of central China during the last 130,000 years
The magnetic susceptibility of loess and paleosols in central China represents a proxy climate index closely related to past changes of precipitation and vegetation, and thus to summer monsoon intensity. Time series of magnetic susceptibility constructed for three loess-paleosol sequences in the southern part of the Chinese Loess Plateau document the history of summer monsoon variation during the last 130,000 yr. They correlate closely with the o…
Chronology of the Baxie Loess Profile and the History of Monsoon Climates in China Between 17,000 and 6000 Years BP
The valley of the Baxie River, situated in the western region of the Loess Plateau in central China, contains a loess profile 15 m thick, which can be considered representative of loess-paleosol sequences formed over the last 17 ka. Both thermoluminescence (TL) determinations on fine-grained sediment (4–11 μm) and 14 C determinations on various organic fractions of paleosols from the profile have provided an extremely useful chronological framewo…
Late Quaternary Records of the Atmospheric Input of Eolian Dust to the Center of the Chinese Loess Plateau
The concentrations of 15 elements and mineral grain-size distributions were determined for Late Quaternary loess sediments from the Chinese Loess Plateau. Particle-size distributions of the loess were approximately log-normal for each of three modes (i.e., 0.04 to 1 μm diameter, 2 to 20 μm, and 20 to 200 μm) that integrate the transport and deposition of eolian dust. The mass particle-size distributions of typical crustal elements (Si, Ca, Fe, Ti…
Stratigraphic Division of Holocene Loess in China
Loess deposition within the Loess Plateau of China records the history of environmental change over the last 2.5 Myr. Loess-paleosol sequences of the last 10 ka, which have preserved information of global climate change, relate closely to human occupation of the area. Hence, studies of the deposition and development of Holocene loess are significant for studying environmental change and problems associated with engineering geology. We present her…
Grain Size of Quartz as an Indicator of Winter Monsoon Strength on the Loess Plateau of Central China during the Last 130,000 Yr
The Chinese loess-paleosol sequence constitutes an important record of variations in Asian monsoon climate over the past 2.4 myr. Magnetic susceptibility of loess and paleosols has been used as a proxy for summer monsoon intensity, while median grain size has been regarded as a measure of the strength of winter monsoon winds that were responsible for most of the dust transport. However, median grain size is only an approximate index of winter mon…
Biogenic Silica Record in Lake Biwa of Central Japan over the Past 145,000 Years
The record of the biogenic silica flux (BSF, g cm −2 (10 3 yr) −1 ) in Lake Biwa reflects changes in diatom productivity in the lake and provides information regarding changes in paleoclimatic conditions. The BSF record of Lake Biwa demonstrates five periods over the past ca. 145,000 yr when the BSF values were significantly greater than 7.5 g cm −2 (10 3 yr) −1 , and five intervals when they were lower. The data imply that paleoclimatic conditio…
Eolian Quartz Flux to Lake Biwa, Central Japan, over the Past 145,000 Years
Eolian quartz flux (EQF, g cm −2 (10 3 yr) −1 ) to Lake Biwa, central Japan, provides direct information on variations of the East Asian winter monsoon. Lake Biwa sediments spanning the past ca. 145,000 yr are characterized by two main periods when EQF values were significantly greater than 5.50 g cm −2 (10 3 yr) −1 , and two main intervals during which EQF values were lower. Two periods with EQF values >5.50 g cm −2 (10 3 yr) −1 occurred from ca…
Reappraisal of Chinese Loess Plateau Stratigraphic Sequences Over the Last 30,000 Years
Through the establishment of radiocarbon chronozones relating common geological events within lacustrine and eolian sediments from five profiles representative of loess yuan (tablelands), river valley and northwest margin features of the Loess Plateau, we propose a series of stratigraphic divisions within the last 30 ka. The focus of this detailed study involves stratigraphic relationships contributing to evidence of Younger Dryas events, with th…
Variation of Rb/Sr Ratios in the Loess-Paleosol Sequences of Central China during the Last 130,000 Years and Their Implications for Monsoon Paleoclimatology
Rb, Sr, and magnetic susceptibility have been measured in the last interglacial–glacial loess profiles at Luochuan and Huanxian, central China. A high degree of similarity between the parameters in both profiles suggests that variations of Rb/Sr ratios in the sequence can be regarded as an indicator of East Asian summer monsoon strength. Matching the Rb/Sr record with the SPECMAP δ 18 O curve suggests that the Rb/Sr ratio responds sensitively to …
Use of Rubidium to Date Loess and Paleosols of the Louchan Sequence, Central China
Rb concentrations, analyzed at 20-cm intervals from the Luochuan sequence of loess and paleosols, are sensitive to the loess–paleosol alternation controlled by monsoon climate. Because it is geochemically immobile, Rb can be well preserved in the loess–paleosol sequence after deposition, and its concentration depends mainly on properties of the winter monsoon-blown dust and on intensity of the summer monsoon-induced pedogenesis. A curvilinear rel…
Variability of East Asian Winter Monsoon in Quaternary Climatic Extremes in North China
In order to examine high-frequency variations of East Asian winter monsoon in Quaternary climatic extremes, two typical loess–paleosol sequences in the Chinese Loess Plateau were investigated. Sandy layers in the loess deposits, the “Upper sand” and “Lower sand” (layers L9 and L15, respectively), which represent a high-resolution record of paleomonsoon changes, have been sampled at intervals of 5–6 cm from sections at Luochuan and Xifeng. The gra…
The history and variability of the East Asian paleomonsoon climate
Asynchronous Holocene optimum of the East Asian monsoon
Dependence of Near-Surface Magnetic Susceptibility on Dust Accumulation Rate and Precipitation on the Chinese Loess Plateau
Magnetic susceptibility (MS) of surface sediment varies systematically across the Loess Plateau in central China, decreasing exponentially from >200×10 −8 m 3 /kg at the northern margin of the Qinling Shan to ≤30×10 −8 m 3 /kg near the southern margin of the Mu Us Desert. MS correlates highly with loess median grain size ( r 2 =0.79), which decreases south-southeastward across the plateau. It also correlates with mean annual temperature (MAT) and…
Distribution of 14 C and 13 C in Forest Soils of the Dinghushan Biosphere Reserve
We report here first results on the bulk soil organic carbon (SOC), apparent radiocarbon ages and δ 13 C characteristics of the tropical and subtropical forest soil in Dinghushan Biosphere Reserve (DHSBR). The forest oxisol in Dinghushan has developed during the Holocene. The δ 13 C variation curves in all three profiles may be divided into two sections. The upper section from 0 to 40 cm has δ 13 C values varying from −27.4 to −24.1‰, −27.5 to −2…
Grain-size distribution function of polymodal sediments in hydraulic and aeolian environments, and numerical partitioning of the sedimentary components
Magnetostratigraphic dating of early humans in China
Pedogenic response to millennial summer monsoon enhancements on the Tibetan Plateau
Timing, Duration, and Transitions of the Last Interglacial Asian Monsoon
Thorium-230 ages and oxygen isotope ratios of stalagmites from Dongge Cave, China, characterize the Asian Monsoon and low-latitude precipitation over the past 160,000 years. Numerous abrupt changes in 18 O/ 16 O values result from changes in tropical and subtropical precipitation driven by insolation and millennial-scale circulation shifts. The Last Interglacial Monsoon lasted 9.7 ± 1.1 thousand years, beginning with an abrupt (less than 200 year…
Episodic gullying and paleomonsoon cycles on the Chinese Loess Plateau
Buried gullies exposed in road excavations along the margin of a loess tableland on the Loess Plateau of central China lie within a thick loess-paleosol succession that spans ≥780,000 years. Constraining ages for gully cutting and filling are provided by dates of loess and soil units cut by and capping the paleogullies. An episode of gully cutting begins at the onset of an interglaciation and ceases as the gullies begin to fill with colluvium and…
The Holocene Asian Monsoon
A 5-year-resolution absolute-dated oxygen isotope record from Dongge Cave, southern China, provides a continuous history of the Asian monsoon over the past 9000 years. Although the record broadly follows summer insolation, it is punctuated by eight weak monsoon events lasting ∼1 to 5 centuries. One correlates with the “8200-year” event, another with the collapse of the Chinese Neolithic culture, and most with North Atlantic ice-rafting events. Cr…
Tree-Ring-Derived Precipitation Records from Inner Mongolia, China, Since A.D. 1627
Two Chinese pine (Pinus tabulaeformis) tree-ring width chronologies up to 375 years long were used to reconstruct rainfall from February to early July for the Wu Dangzhao region and from February to mid-July for the La Madong region, Inner Mongolia, China. The predictor variables account for 44.3% and 42.7% of the variance in precipitation, respectively. Both historical records and two other tree-ring based precipitation reconstructions from the …
Millennial- and orbital-scale changes in the East Asian monsoon over the past 224,000 years
The variation of summer monsoon precipitation in central China since the last deglaciation
Geology and Paleoclimatology Research (43 obras) · Geography (29 obras) · Physical geography (28 obras) · Climatology (27 obras) · Geology (26 obras) · Loess (26 obras) · Monsoon (22 obras) · Geology (21 obras) · Paleontology (19 obras) · Pleistocene-Era Hominins and Archaeology (19 obras)