The Ecosystem Effects of Sand-Binding Shrub Hippophae rhamnoides in Alpine Semi-Arid Desert in the Northeastern Qinghai–Tibet Plateau

Tian, Lihui; Wu, Wangyang; Zhou, Xin; Zhang, Dengshan; Yu, Yang; Wang, Haijiao; Wang, Qiaoyu

doi:10.3390/land8120183

Cited by 10 publications

(9 citation statements)

References 18 publications

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“…The study was conducted at the eastern shore of Qinghai Lake, which belongs to the Ketu Wind Prevention and Sandfixation Experimental Range (hereafter, WPSER; 36 °46.9′ N, 100 °46.8′ E; 3,224 m; for more details about WPSER, refer to Tian et al (2019) and Tian et al (2020)). Mega-dunes and continuous mobile dunes are distributed across the WPSER.…”

Section: Study Areamentioning

confidence: 99%

“…Desertification of the Qinghai Lake watershed provides a hotspot for research investigating the influence of climate change on the Tibetan Plateau (Li et al, 2018). The local Qinghai Province government has encouraged afforestation and conducted several sand-fixation projects to impede the spread of mobile dunes along the nearby Qinghai-Tibet Railway and Eastern Surrounding Road (Tian et al, 2019). Desertification has been effectively curbed by a relatively stable pattern of "fixed lowlands," "semi-fixed dunes," and "mobile dunes" from the lakeshore to the foothills of Riyue Mountain, the eastern boundary of Qinghai Lake.…”

mentioning

confidence: 99%

“…Recent studies in this area have mainly focused on desert formation, dynamic changes of desertification, desertification control measures, soil particle composition, soil moisture dynamics, effective control and evaluation of straw checkerboards, and individuals' effects on reducing winddriven sand erosion (Tian et al, 2015;Tian et al, 2019;Tian et al, 2020), in addition to water use sources of afforestation species (Wu et al, 2016;Wang et al, 2022). Work by Wu H et al (2019) has analyzed species characteristics (richness and traits) and other afforestation community features over several years.…”

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confidence: 99%

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Vegetation–soil dynamics in an alpine desert ecosystem of the Qinghai Lake watershed, northeastern Qinghai–Tibet Plateau

Zhang

Tian²,

Hasi³

et al. 2023

Front. Environ. Sci.

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Different types of dunes cause habitat differences, which can affect vegetation growth. In turn, water utilized by vegetation leads to the differential distribution of soil moisture in different dunes. However, vegetation–soil dynamics in the alpine desert of the Qinghai–Tibet Plateau remain poorly understood. We chose the largest section of desert along the eastern shore of Qinghai Lake as a study area to test the hypotheses that plant community characteristics and soil physicochemical properties show differences in different sand-binding communities, in addition to soil moisture content, based on methods of field investigations and in situ observations. The main results were as follows:1) Plant community species diversity and herb coverage increased with the stabilization status of dunes; meanwhile, coverage increased with the age of the added artificial semi-fixed dunes. 2) Surface deposits were mainly composed of medium sand, leading to low organic matter and nutrient content in the study area; this being different from other deserts in northern China. 3) Soil moisture’s seasonal variation was consistent with rainfall seasonality and lacked significant interannual differences, while its vertical distribution was influenced by precipitation infiltration. 4) Soil crust forms beneath specific species, such as leguminous plants in the study area, which should be effective at preventing wind erosion. Our findings will facilitate a mechanistic understanding of plant–soil–water relationships in alpine deserts and provide timely information for screening introduced species for enhancing sand-fixation effectiveness.

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Section: Study Areamentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Vegetation–soil dynamics in an alpine desert ecosystem of the Qinghai Lake watershed, northeastern Qinghai–Tibet Plateau

Zhang

Tian²,

Hasi³

et al. 2023

Front. Environ. Sci.

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“…Revegetation with native shrubs has been one of the most effective ways to control desertification ( Zhao et al., 2013 ; Tian et al., 2019 ). This is owing to the fact that native shrubs can physiologically adapt to local climates more quickly than non-native species, and they have a strong ability to resist sand burial because the adventitious buds of their branches can give rise to roots and seedlings after sand burial ( Luo and Zhao, 2019 ; Ma et al., 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Hydraulic trade-off and coordination strategies mediated by leaf functional traits of desert shrubs

et al. 2022

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Desert shrubs play important roles in desertification control and vegetation restoration, which are particularly affected by droughts caused by climate change. However, the hydraulic strategies associated with hydraulic functional traits of desert shrubs remain unclear. Here, eight desert shrub species with different life forms and morphologies were selected for a common garden experiment at the southeast edge of the Tengger Desert in northern China to study the hydraulic strategies mediated by leaf hydraulic functional traits. Diurnal leaf water potential change, leaf hydraulic efficiency and safety, hydraulic safety margin, hydraulic capacitance, and water potential and relative water content at the turgor loss point were observed to significantly differ among species, suggesting that leaf hydraulic functional traits were strongly associated with species even when living in the same environment. Additionally, shrubs with greater leaf hydraulic efficiency had lower midday leaf water potential and leaf hydraulic safety, suggesting that leaf hydraulic efficiency had a strong trade-off with hydraulic safety and minimum leaf water potential, whereas there was also a coordination between leaf hydraulic safety and the leaf minimal water potential. Moreover, shrubs with higher leaf hydraulic capacitance had greater hydraulic safety margins, indicating coordination between leaf hydraulic capacitance and hydraulic safety margin. Overall, this study indicated that minimal daily leaf water potential, as an easily measured parameter, may be used preliminarily to predict leaf hydraulic conductivity and the resistance to embolism of desert shrubs, providing critical insights into hydraulic trade-off and coordination strategies for native shrubs as priority species in desert vegetation restoration and reconstruction.

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“…Artificial forests have effectively reduced wind and sand hazards and have played a crucial role in the traffic of East Lake Road and the Qinghai-Tibet Railway. Nevertheless, previous studies chiefly focused on wind break mechanisms and ecological functions of sand-fixing plants in the study site (Tian et al, 2019(Tian et al, , 2020Wu et al, 2019c), few studies took the eyes on water sources of revegetation species (Wu et al, 2016), especially different sand-binding species and water availability conditions.…”

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confidence: 99%

Comparing water use patterns of sand‐binding species in an alpine semi‐arid desert

Tian

Wang

et al. 2023

Hydrological Processes

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The processes of species obtaining water resources are crucial to evaluate the adaptability of plantations, which can affect the establishment and survival of restored ecosystems and functions of water-limited ecosystems. However, there are still limitations in understanding water use patterns of different four plantations (Populus sylvestris, Salix cheliophe, Hippophae rhamnoides and Artemisia ordosica) in the Qinghai Lake basin. Stable isotopes of xylem water of four individual species were analysed at different dunes located at the eastern shore of Qinghai Lake in 2018 and 2019. The purpose of this study was to explore potential water sources used by different life form plants, to identify whether the soil moisture content and root distribution determined the plants water use patterns. Results from the Bayesian mixing model MixSIAR showed that all species mainly uses three levels of soil water, but they extracted soil water from different layers in different growing seasons among species. All species primarily depended on water from upper soil layers at the early growing stage, but P. sylvestris and S. cheliophe also absorbed much proportion middle and deep soil layers' water in dry year of 2019. All four species shift to use middle or deep soil layer water rather than shallow water in July with the most rainfall and soil water content (SWC). However, it was only used by P. sylvestris and H. rhamnoides in 2018. In all, seasonal water use pattern of different species was affected by SWC, soil texture and root distribution. Compared with moratorium plantations such as S. cheliophe, mixed afforestation of P. sylvestris and H. rhamnoides maximized of soil water sources absorbed by the plants. The study can shed light on plant-water relationships to facilitate the woody species for afforestation and desertification restoration management in the semi-arid desert ecosystem.

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The Ecosystem Effects of Sand-Binding Shrub Hippophae rhamnoides in Alpine Semi-Arid Desert in the Northeastern Qinghai–Tibet Plateau

Cited by 10 publications

References 18 publications

Vegetation–soil dynamics in an alpine desert ecosystem of the Qinghai Lake watershed, northeastern Qinghai–Tibet Plateau

Vegetation–soil dynamics in an alpine desert ecosystem of the Qinghai Lake watershed, northeastern Qinghai–Tibet Plateau

Hydraulic trade-off and coordination strategies mediated by leaf functional traits of desert shrubs

Comparing water use patterns of sand‐binding species in an alpine semi‐arid desert

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