Lake ecosystem regime shifts induced by agricultural intensification: A century scale paleolimnological investigation from the Huai River Basin (China)

Huang, Shixin; Zhang, Ke; Qi, Lin; Kattel, Giri; Shen, Ji

doi:10.1016/j.quascirev.2022.107522

Cited by 7 publications

(6 citation statements)

References 67 publications

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“…2). Thus, the molecular biomarkers were well-preserved in recent sediments of Lake Taihu beyond similar human-impacted waters elsewhere (Bunting et al, 2016;Zastepa et al, 2017;Waters et al, 2021;Huang et al, 2022;Zeng et al, 2023).…”

Section: Subfossil Pigments and Cyanotoxinsmentioning

confidence: 87%

Characterization of lacustrine harmful algal blooms using multiple biomarkers: Historical processes, driving synergy, and ecological shifts

et al. 2023

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Section: Subfossil Pigments and Cyanotoxinsmentioning

confidence: 87%

Characterization of lacustrine harmful algal blooms using multiple biomarkers: Historical processes, driving synergy, and ecological shifts

et al. 2023

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“…Watershed activities associated with agriculture, urbanization, land‐use changes, and hydrologic dynamics have accelerated by approximately threefold on MAR average in the global lakes since 1950 (Baud et al., 2021; Ran, et al, 2023; Rose et al., 2010). Nutrients and warming mainly forced alterations in the ecological states of mountains and shallow lakes using lake sediments (Huang et al., 2022; Oleksy et al., 2020).…”

Section: Discussionmentioning

confidence: 99%

“…A generally consistent perspective indicates that the primary drivers of sediment dynamics in lakes during the Anthropocene are the long‐term pressures induced by human activities, and most associated studies have been limited to identifying major external pressures. For example, air temperature, sunshine hours, and fertilizer application showed contribution rates of 46.48%–76.4% to the decrease in total nitrogen (TN) and total phosphorus (TP) burial efficiency in sediments from Dianchi Lake (Chen et al., 2020); and agricultural intensification with anthropogenic nutrient loading drove 73% shifts in lake ecological dynamics in Gaoyou Lake (Huang et al., 2022). However, the time at which these major pressures significantly influence the temporal sequence and whether their contributions are positive or negative have not been clarified.…”

Section: Introductionmentioning

confidence: 99%

Driver–response relationships in a large shallow lake since the Anthropocene: Short‐term abrupt perturbations versus long‐term sustainable pressures

Ran,

Wang,

Nie

et al. 2024

Global Change Biology

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Lakes, as integral social‐ecological systems, are hotspots for exploring climatic and anthropogenic impacts, with crucial pathways revealed by continuous sediment records. However, the response of multi‐proxies in large shallow lakes to typical abrupt events and sustained drivers since the Anthropocene remains unclear. Here, we explored the driver‐identification relationships between multi‐proxy peaks and natural and anthropogenic events as well as the attribution of short‐term perturbations and long‐term pressures. To this end, sediment core records, socio‐ecological data, and documented events from official records were integrated into a large shallow lake (Dongting Lake, China). Significant causal cascades and path effects (goodness‐of‐fit: 0.488; total effect: −1.10; p < .001) were observed among catchment environmental proxies, lake biogenic proxies, and mixed‐source proxies. The peak‐event identification rate (PEIR) and event‐peak driving rate were proposed, and values of 28.57%–46.43% and 50%–81.25% were obtained, respectively. The incomplete accuracy of depicting event perturbations using sediment proxies was caused by various information filters both inside and outside the lake. PEIRs for compound events were 1.41 (±0.72) and 1.09 (±0.46) times greater than those for anthropogenic‐dominated and natural‐dominated events, respectively. Furthermore, socio‐economic activity, hydrologic dynamics, land‐use changes, and agriculture exerted significant and persistent pressures, cumulatively contributing 55.3%–80.9% to alterations in sediment proxies. Relatively synergistic or antagonistic trends in temporal contributions of these forces were observed after 2000, which were primarily attributed to the “Grain for Green” project and the Three Gorges Dam. This study represents one of the few investigations to distinguish the driver–response relationship of multiple proxies in large shallow lakes under typical event perturbations and long‐term sustained pressures since the Anthropocene. The findings will help policymakers and managers address ecological perturbations triggered by climate change and human activities over long‐term periods.

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“…Lake paleolimnological records in the middle reaches of the Yangtze River revealed dam-induced shifts in sediment sources and compositions, notably the Three Gorges Dam (TGD), which stimulated algal blooms in lakes that suffered from nutrient enrichment (Chen et al 2022). Recently, although the rate of change (ROC) of lake sediment proxies was used to conduct the response of lake ecosystem regime shifts to catchment environments (Benito et al 2021;Huang et al 2022a), further exploration was needed to reveal how lake sedimentation states and biogenic regime shifts responded to typical watershed events. Dongting Lake in China is a typically and distinctly deposited lake with frequent anthropogenic disturbances, and hydrological fluctuations demonstrated as increased sediment deposits, an extended dry season, and decreased water quality (Li 2013).…”

mentioning

confidence: 99%

“…Regime shifts recorded by lake sediments in contemporary lakes have been investigated through paleolimnological records, such as diatoms (Benito et al 2021), n ‐alkanes (Kong et al 2017), chironomids (Zheng et al 2021), fossilized pigments (Huang et al 2022 a ), etc. Biogenic elements in lake sediments (e.g., carbon, nitrogen, phosphorus, and sulfur) not only reflected local ecological environment evolutions but also participated in the entire geochemical cycle, which received considerable attention in the variability of primary productivity and nutrient input in lakes as the significant biological components (Anderson et al 2014; Bao et al 2021).…”

mentioning

confidence: 99%

A significant loop of lake sedimentation state links catchment eco‐surroundings and lake biogenic regime shifts

Ran

Nie

Wang

et al. 2023

Limnology & Oceanography

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As an important destination for upstream materials and element accumulation, lake sediments hold a multitude of contextual information about climatic changes and anthropogenic disturbances. However, understanding the lake sedimentation state to link catchment pressures and biogenic regime shifts remains challenging. To address this, research was conducted on the lake sedimentation state, including the dynamics, catchment drivers, effects on biogenic regimes, and responses to typical historical events using nine sediment cores from Dongting Lake, China, a typical global priority ecoregion. Three transitions of lake sedimentation state were distinguished over the century (1937, 1968, and 1993), whereby hydrologic dynamics and land‐use changes in the watershed were the direct drivers with relative contributions of 16.30% and 14.56%, respectively. Lake sedimentation state and organic matter inputs not only preceded sediment biogenic elements at the shift time but also exhibited nonlinear trigger effects on biogenic element contents (R2 = 0.47, p < 0.01), which promoted an increase in sediment biogenic element burial rates. Rate of change analysis indicated that intensive human activities altered the relationship between the sedimentation state and biogenic regime shift, thus revealing the response to anthropogenic events in the catchment. Pathways quantified by the partial least squares path model established the link between watershed attributes and lake biogenic properties via the lake sedimentation state. Our findings revealed a cascading linkage among catchment eco‐surroundings, lake sedimentation states, and biogenic regime shifts. The research further provided insights into driver‐response relationships in lake‐catchment systems.

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Lake ecosystem regime shifts induced by agricultural intensification: A century scale paleolimnological investigation from the Huai River Basin (China)

Cited by 7 publications

References 67 publications

Characterization of lacustrine harmful algal blooms using multiple biomarkers: Historical processes, driving synergy, and ecological shifts

Characterization of lacustrine harmful algal blooms using multiple biomarkers: Historical processes, driving synergy, and ecological shifts

Driver–response relationships in a large shallow lake since the Anthropocene: Short‐term abrupt perturbations versus long‐term sustainable pressures

A significant loop of lake sedimentation state links catchment eco‐surroundings and lake biogenic regime shifts

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