Precipitation Alters the Effects of Temperature on the Ecosystem Multifunctionality in Alpine Meadows

Ma, Yunhe; Tian, Lei; Qu, Guangpeng; Li, Ruicheng; Wang, Weiwei; Zhao, Jingxue

doi:10.3389/fpls.2021.824296

Cited by 24 publications

(14 citation statements)

References 52 publications

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“…Warming did have an effect on ecosystem multifunctionality (Fig. 1), which contrasts with a study conducted in an alpine meadow ecosystem simulated warming by soil transplant (Ma et al 2021a). Such phenomena may attribute to the difference in warming methods, experimental duration, and the variable selected to evaluate ecosystem multifunctionality (Li et al 2019).…”

Section: The Response Of Ecosystem Multifunctionality To Warming and ...contrasting

confidence: 65%

Inconsistent effects of warming and increased precipitation on ecosystem multifunctionality in an alpine meadow

Shi

Lin

Yao

et al. 2023

Preprint

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Climate change is well-known to alter the structure and function of grassland ecosystems. Warming and humidification are predicted to be the climate change trend on the Qinghai-Tibetan Plateau. However, understanding of how warming and increased precipitation affect ecosystem multifunctionality in alpine meadows is still limited. Here, we conducted an 8-year field experiment involving warming and increased precipitation in an alpine meadow to explore how warming, increased precipitation, and their interaction affect ecosystem multifunctionality through measuring plant and soil functions. The results indicated that increased precipitation, rather than warming or their interaction, had a positive effect on ecosystem multifunctionality. Warming altered the plant composition and decreased species richness, plant coverage, and plant nutrient carbon (C), nitrogen (N), and phosphorus (P) pools of sedges, but increased plant C, N, and P pools of legumes and N pools of grasses. Increased precipitation enhanced plant P pool of legumes and C, N, and P pools of grasses and aboveground community. Soil moisture and ammonium nitrogen also showed positive responses to increased precipitation. Furthermore, Pearson correlation analysis and structural equation modeling suggested that soil moisture, soil ammonium nitrogen, and plant nutrient pools jointly drove the response of ecosystem multifunctionality to increased precipitation. Our study highlighted the dominant role of precipitation in determining the influence of climate change on ecosystem multifunctionality in semi-arid alpine meadows.

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Section: The Response Of Ecosystem Multifunctionality To Warming and ...contrasting

confidence: 65%

Inconsistent effects of warming and increased precipitation on ecosystem multifunctionality in an alpine meadow

Shi

Lin

Yao

et al. 2023

Preprint

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“…The knowledge of how plant diversity affects ecosystem multifunctionality is critical for sandy meadow restoration and management. Higher levels of plant biodiversity are often proposed to result in complementarity effects that can promote greater performance in ecosystem functioning (Jing et al, 2015; Ma et al, 2022). Indeed, our results showed strong evidence that reseeding generally increases plant diversity and species richness (Figure 3c,d), and there was an important relationship between plant diversity and ecosystem multifunctionality (Figures 6 and S1).…”

Section: Discussionmentioning

confidence: 99%

“…To evaluate the differences in ecosystem functions across the sandy meadow, restored meadow, and native meadow, the ecosystem multifunctionality index (EMF) is estimated based on selected aboveground ecosystem functions ( R , H , AGB, and BGB) and belowground ecosystem functions (SW, BD, SOC, DOC, TN, TP, AP, NH 4 + –N, and NO 3 − –N), which were also reclassified into aboveground EMF (AEMF) index and belowground EMF (BEMF) index. These EMF indexes can be calculated as follows (Hu et al, 2021; Ma et al, 2022):

EMF = \frac{1}{N} \sum_{i = 1}^{N} f (x_{i}),

…”

Section: Methodsmentioning

confidence: 99%

“…Reports had showed that reseeding could greatly affect multiple ecosystem functions in alpine meadows such as plant diversity, productivity, and soil physical and chemical properties (Gou et al, 2019; Li et al, 2021; L. Liu et al, 2019). It is well known that biodiversity and ecosystem multifunctionality are often closely linked in grasslands (Jing et al, 2015; Ma et al, 2022), but how artificial reseeding will regulate this relationship in alpine meadows is still unclear. However, most of the researches on multiple ecosystem functions mainly focused on the overall EMF, and few studies reported the changes in above‐ and below‐ground EMF after artificial reseeding (Guo et al, 2021; Tian et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

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Artificial reseeding improves multiple ecosystem functions in an alpine sandy meadow of the eastern Tibetan Plateau

et al. 2023

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Desertification in alpine grasslands is exacerbated by rapid climate change and intensive anthropogenic activity, which will substantially threaten the structure and function of alpine grassland ecosystems. Artificial reseeding was a widely used strategy for the restoration of alpine sandy grasslands. However, it is still unclear whether reseeding restoration can improve multiple ecosystem functions of sandy meadows. To narrow these knowledge gaps, we evaluated the changes in plant communities, soil conditions, and ecosystem multifunctionality (EMF) across native meadow, sandy meadow, and restored meadow on the eastern Tibetan Plateau, and further identified the links between individual and multiple ecosystem functions. Artificial reseeding had contributed to the promotion of plant diversity, productivity, soil fertility, and soil carbon and nitrogen sequestrations. However, the recovery levels of plant diversity, productivity, and soil fertility in the restored meadow were still far lower than that in the native meadow. The results revealed that the EMF index of the restored meadow increased greatly compared with the sandy meadow, but it did not recover to that of the native meadow level. In addition, short‐term reseeding improved the aboveground EMF index more than the belowground EMF index. The EMF indexes and most individual ecosystem functions showed positive correlations with plant diversity and productivity. These findings indicated an important role of artificial reseeding in the restoration of ecosystem functions in the alpine sandy meadow, and it had critical implications for the regional ecological security and sustainable development of alpine grasslands.

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“…Many of the articles in this SI reveal the driving mechanism of the impact of climate change and human activities ( Dai et al., 2022 ; Hua et al. (2022) ; Ma et al., 2022 ; Zuo et al., 2022 ) on alpine ecosystems with field observations and manipulative experiments combined with new experimental technologies ( Chen et al., 2022 ; Qin et al., 2022 ; Zou et al., 2022 ). Experimental warming enhanced the pattern of the plant allometric growth and promoted migration of the soil stoichiometric characteristics to deep layers in Beiluhe ( Xu et al., 2022 ).…”

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confidence: 99%

Editorial: Patterns, functions, and processes of alpine grassland ecosystems under global change

et al. 2022

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Editorial on the Research Topic:Patterns, functions, and processes of alpine grassland ecosystems under global change Alpine grassland on the Tibetan Plateau (TP) accounts for about 62% of the total area of the TP (Wang et al., 2022). These grassland ecosystems provide important ecological services and functions in pastoral production, biodiversity conservation, carbon storage, water resource regulation, cultural inheritance, tourism, and recreation etc. (Miehe et al., 2019; Sun et al., 2020; Wang et al., 2022). In the past serval decades, the alpine grassland on the TP has experienced rapid climate change and intensified human activities (He et al., 2021), the regulatory mechanisms and drivers are remained controversial.Climate changes have been evident across the TP since the beginning of the 1970s (Yang et al., 2014). For instance, the mean annual air temperature has increased by about 0.4°C, which is twice that of the global average, however, a decrease in precipitation has been found in many other regions (Mountain Research Initiative EDW Working Group, 2015). Also, the degradation of permafrost has been accelerated as manifested by ground surface subsidence and thaw settlement of permafrost soils (Mu et al., 2020), and the total number of lakes increased from 868 in 1990 to 1207 in 2015, leading to the increase of total water surface area of the lakes at a rate of 383.5 km2 yr-1 (Sun et al., 2018). With the steady increase of human population and domestic livestock number (Wei et al., 2020), overgrazing has become a serious challenge with overstocking rates of 27-89% in the Frontiers in Plant Science frontiersin.org 01

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Precipitation Alters the Effects of Temperature on the Ecosystem Multifunctionality in Alpine Meadows

Cited by 24 publications

References 52 publications

Inconsistent effects of warming and increased precipitation on ecosystem multifunctionality in an alpine meadow

Inconsistent effects of warming and increased precipitation on ecosystem multifunctionality in an alpine meadow

Artificial reseeding improves multiple ecosystem functions in an alpine sandy meadow of the eastern Tibetan Plateau

Editorial: Patterns, functions, and processes of alpine grassland ecosystems under global change

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