Quantitative analysis of relative impacts of climate change and human activities on Xilingol grassland in recent 40 years

Wu, Nitu; Liu, Aijun; Ye, Ruhan; Yu, Dongsheng; Du, Wala; Chaolumeng, Qiqige; Liu, Guixiang; Yu, Shanshan

doi:10.1016/j.gecco.2021.e01884

Cited by 21 publications

(12 citation statements)

References 41 publications

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“…As the literature analysis has shown, the parameters determining the supply of elements with plants into the soil are largely dependent on climatic factors. However, there is rather con icting evidence on what are the factors that describe the dynamics, i. e. moisture and temperature (Liu et al 2018, Wu et al 2021). Our study showed that the calculated indicator IDM is a reliable indicator of the in uence of climate on the supply of most of the elements under study into the upper soil layers.…”

Section: The Supply Of Chemical Elements With Plants To the Upper Lay...mentioning

confidence: 99%

The Effect of Plant Biodiversity Changes on the Chemical Composition of Steppe Soils during Climate Aridization

Kudrevatykh

Kalinin²,

Mitenko³

2022

Preprint

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AimsIn time to the climate changes occurring in the recent decades, studies on the assessment of the influence of climatic factors on the changing natural ecosystems are becoming particularly relevant. This study assesses the relationship between vegetation response to climate aridization and the effect of these changes on soil properties, which is crucial for understanding the sustainability of steppe among the trend toward further global warming. Methods The study demonstrates the influence of climatic factors on the changes in plant biodiversity and biomass, the dynamics of the total stock and the rate of return of chemical elements to the upper soil horizons with the plant organic matter. The chemical composition of soils of different types of steppe was studied, and the effect of changes in vegetation cover on the variability of these soil parameters was estimated. Results The study revealed that during aridization in the steppe zone, there is a change in plant association, what lead to the biomass and bio-productivity of steppe decrease, and chemical elements associated with salts accumulate in soils (Ca, Mg, Na, S, Sr). The accumulation of Ca, K, Na, S, Cl by arid species leads to further degradation of the soil cover (salinization, forming of cambic horizon) and a decrease in its sustainability.Conclusions The data obtained will contribute to a better understanding of the role of plants in the sustainability of the soil cover of modern steppes, which is necessary to predict the response of landscapes to future climate changes.

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Section: The Supply Of Chemical Elements With Plants To the Upper Lay...mentioning

confidence: 99%

The Effect of Plant Biodiversity Changes on the Chemical Composition of Steppe Soils during Climate Aridization

Kudrevatykh

Kalinin²,

Mitenko³

2022

Preprint

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“…For example, Yan et al (2021) reported that grassland NPP in Horqin is positively related to precipitation. Zhang et al (2019) and Wu et al (2021) indicated that precipitation is a determining factor affecting grassland NPP in Xilingol and Hulunbuir. Nanzad et al (2021) concluded that the grassland NPP of central Inner Mongolia is affected by precipitation and temperature.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Change of Net Primary Productivity and Its Response to Climate Change in Temperate Grasslands of China

Xia

Liu

et al. 2022

Front. Plant Sci.

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The temperate grasslands in China play a vital part in regulating regional carbon cycle and climate change. Net primary productivity (NPP) is a crucial index that reflects ecological function of plants and the carbon sequestration capacity of grassland ecosystem. Climate change can affect NPP by changing vegetation growth, but the effects of climate change on the NPP of China’s temperate grasslands remain unclear. Based on MODIS data and monthly climate data during 2000–2020, this study explored the spatiotemporal changes in grassland NPP and its response to climate change in temperate grasslands of China. We found that the annual NPP over the entire China’s temperate grasslands increased significantly by 4.0 gC/m2/year from 2000 to 2020. The annual NPP showed increasing trends for all the different grassland vegetation types, with the smallest increase for temperate desert steppe (2.2 gC/m2/year) and the largest increase for temperate meadow (5.4 gC/m2/year). The correlation results showed that increased annual precipitation had a positive relationship with the NPP of temperate grasslands. Increased summer and autumn precipitation could increase grassland NPP, particularly for the temperate meadow. With regard to the effects of temperatures, increased temperature, particularly the summer maximum temperature, could decrease annual NPP. However, increased spring minimum temperature could increase the NPP of temperate desert steppe. In addition, this study found, for the first time, an asymmetric relationship between summer nighttime and daytime warming and the NPP of temperate meadow. Specifically, nighttime warming can increase NPP, while daytime warming can reduce NPP in temperate meadow. Our results highlight the importance of including seasonal climate conditions in assessing the vegetation productivity for different grassland types of temperate grasslands and predicting the influences of future climate change on temperate grassland ecosystems.

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“…Recently, several methods have been adopted to determine the interaction of climate factors and human activities on vegetation dynamics, such as the regression model method, redundancy analysis, and the Miami memorial model Wu N. et al, 2021;Xiong et al, 2021). The regression model method is the simplest, but it is hard to describe the complex interactions between vegetation and climatic factors, between that and human activities (Turner and Carpenter, 2017;Liu et al, 2020), and independent variable factors are difficult to quantify spatially, lead to uncertainties in the results (Wu N. et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Quantifying the contributions of climate factors and human activities to variations of net primary productivity in China from 2000 to 2020

Chen

Chen³

et al. 2023

Front. Earth Sci.

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Net primary productivity (NPP) plays a vital role in the globe carbon cycle. Quantitative assessment of the effects of climate changes and human activities on net primary productivity dynamics is vital for understanding the driving mechanisms of vegetation change and sustainable development of ecosystems. This study investigates the contributions of climatic factors and human activities to vegetation productivity changes in China from 2000 to 2020 based on the residual trend analysis (RESTREND) method. The results showed that the annual average net primary productivity in China was 325.11 g C/m2/year from 2000 to 2020 and net primary productivity showed a significantly increasing trend (p<0.05) at a rate of 2.32 g C/m2/year. Net primary productivity increased significantly (p<0.05) across 40.90% of China over the study period, while only 1.79% showed a significantly declining trend (p<0.05). The contributions of climatic factors and human activities to net primary productivity increase were 1.169 g C/m2/year and 1.142 g C/m2/year, respectively. Climate factors contributed positively mainly in Sichuan Basin, the Loess Plateau, the Mongolian Plateau, and Northeast China Plain. Positive contributions of human activities to net primary productivity mainly occurred in the Loess Plateau, Central China, and the Greater Khingan Mountains. The effects of climatic factors and human activities on net primary productivity changes varied among sub-regions. In Tropical Monsoon Climate Region and Subtropical Monsoon Climate Region, human activities had greater impacts on net primary productivity increase than climate factors, while climate factors were the dominant factor for net primary productivity recovery in other sub-regions. In addition, during 2000–2020, net primary productivity was dominated by both climate factors and human activities in 49.84% of China, while areas dominated solely by climate factors and human activities accounted for 13.67% and 10.92%, respectively. Compared to changed land cover types, the total net primary productivity as well as the increase of total net primary productivity in China was mostly contributed by unchanged land cover types, which contributed more than 90%.

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Quantitative analysis of relative impacts of climate change and human activities on Xilingol grassland in recent 40 years

Cited by 21 publications

References 41 publications

The Effect of Plant Biodiversity Changes on the Chemical Composition of Steppe Soils during Climate Aridization

The Effect of Plant Biodiversity Changes on the Chemical Composition of Steppe Soils during Climate Aridization

Spatiotemporal Change of Net Primary Productivity and Its Response to Climate Change in Temperate Grasslands of China

Quantifying the contributions of climate factors and human activities to variations of net primary productivity in China from 2000 to 2020

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