Morphological traits of Bryum argenteum and its response to environmental variation in arid and semi-arid areas of Tibet

Wang, Lili; Zhao, Lei; Song, Xiaotong; Wang, Qinggang; Kou, Jin; Jiang, Yanbin; Shao, Xingling

doi:10.1016/j.ecoleng.2019.06.013

Cited by 12 publications

(9 citation statements)

References 35 publications

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“…In addition, the spatial pattern and variation in vegetation greenness may vary drastically with elevation differences ( Wang et al, 2021 ). The topography notably influences the distribution and growth of vegetation, and as one of the regions with the highest average altitude worldwide, the drastic topographic fluctuations and harsh climate in Tibet result in locally obvious differences in the vegetation distribution ( Wang et al, 2019 , 2022 ). Spatial autocorrelation can reveal whether and to what extent the attribute characteristics of neighboring elements in geographic space are related and has become a common method for the study of vegetation growth, carbon cycle, heat island effect, and other changes in vegetation ecology and the environment ( Li et al, 2021 ; Yang et al, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

Spatial Pattern and Dynamic Change of Vegetation Greenness From 2001 to 2020 in Tibet, China

et al. 2022

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Due to the cold climate and dramatically undulating altitude, the identification of dynamic vegetation trends and main drivers is essential to maintain the ecological balance in Tibet. The normalized difference vegetation index (NDVI), as the most commonly used greenness index, can effectively evaluate vegetation health and spatial patterns. MODIS-NDVI (Moderate-resolution Imaging Spectroradiometer-NDVI) data for Tibet from 2001 to 2020 were obtained and preprocessed on the Google Earth Engine (GEE) cloud platform. The Theil–Sen median method and Mann–Kendall test method were employed to investigate dynamic NDVI changes, and the Hurst exponent was used to predict future vegetation trends. In addition, the main drivers of NDVI changes were analyzed. The results indicated that (1) the vegetation NDVI in Tibet significantly increased from 2001 to 2020, and the annual average NDVI value fluctuated between 0.31 and 0.34 at an increase rate of 0.0007 year−1; (2) the vegetation improvement area accounted for the largest share of the study area at 56.6%, followed by stable unchanged and degraded areas, with proportions of 27.5 and 15.9%, respectively. The overall variation coefficient of the NDVI in Tibet was low, with a mean value of 0.13; (3) The mean value of the Hurst exponent was 0.53, and the area of continuously improving regions accounted for 41.2% of the study area, indicating that the vegetation change trend was continuous in most areas; (4) The NDVI in Tibet indicated a high degree of spatial agglomeration. However, there existed obvious differences in the spatial distribution of NDVI aggregation areas, and the aggregation types mainly included the high-high and low-low types; and (5) Precipitation and population growth significantly contributed to vegetation cover improvement in western Tibet. In addition, the use of the GEE to obtain remote sensing data combined with time-series data analysis provides the potential to quickly obtain large-scale vegetation change trends.

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Section: Discussionmentioning

confidence: 99%

Spatial Pattern and Dynamic Change of Vegetation Greenness From 2001 to 2020 in Tibet, China

et al. 2022

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“…facilitate surface area for water adhesion as well as modification of the shoot-level microenvironment to retard water loss. At the leaf level, awns (hair points) have been implicated in processes from dew capture (Pan et al 2016) to DT (Coe et al 2019) and have been shown to vary in response to changing environmental conditions (Wang et al 2019). Leaf costae, ranging in number and complexity in bryophyte leaves, may facilitate water storage in hyaline cells as well as hydraulic channeling towards stems.…”

Section: Water Transportmentioning

confidence: 99%

“…Morphometric approaches can also be combined with genetics across large geographic scales (e.g. Pereira et al 2013, Wang et al 2019. besides vegetative characters, both phenotypic plasticity and local adaptation can also interact with reproductive tradeoffs (Hedderson & Longton 2008, Marks et al 2016, bisang et al 2020.…”

Section: Within-species Trait Variation: Phenotypic Plasticity and Local Adaptationmentioning

confidence: 99%

500 million years of charted territory: functional ecological traits in bryophytes

Stanton

Coe

2021

BDE

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Since the late Cambrian era, bryophytes have been shaping terrestrial ecosystems through unique and diverse suites of anatomical, physiological, and morphological traits. In this review we highlight historical and recent work in bryophyte functional ecology, with an emphasis on knowledge gaps and opportunities for future work. While we cannot always avoid the temptation to contrast with tracheophyte (especially angiosperm) studies, our aim is to de-center that perspective in favor of a more universal understanding of functional land plant ecology. We therefore center our description on three core aspects of bryophytes that are poorly represented in tracheophyte studies: (I) dynamic water content (including poikilohydry and desiccation tolerance), (II) multiple scales of interaction with environment, and (III) reproduction and life history. We also highlight the diverse and wide-ranging influence bryophytes have on ecosystem processes, including primary productivity, nutrient cycling, hydrology, and ecological interactions with other species. Furthermore, while the study of bryophyte functional traits has rapidly grown in the past decade, important gaps in phylogenetic and geographic coverage persist and constrain the development of a more universal land plant functional ecology theory.

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“…Vegetation development in the landscape is the result of the interaction of genetic factors and environmental conditions [58]. Therefore, seeds and cuttings of local ecotypes were used as propagation material to preserve genetic fitness [25].…”

Section: Project Solutionsmentioning

confidence: 99%

“…Such genes risk altering the characteristics of the local flora, selected by the area's distinctive environmental conditions, which is in perfect harmony with the climate and able to react in specific ways to regional environmental stressors typical of the Salento [25]. Vegetation development in the landscape is the result of the interaction of genetic factors and environmental conditions [58]. Therefore, seeds and cuttings of local ecotypes were used as propagation material to preserve genetic fitness [25].…”

Section: Project Solutionsmentioning

confidence: 99%

Habitat Restoration: An Applicative Approach to “Biodiversity Heritage Relicts” in Social-Ecological Systems

Semeraro

Turco²,

Arzeni³

et al. 2021

Land

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Many landscapes are the result of interactions between ecological processes, economic activities, and the administrative and political organisation of society. Therefore, as a consequence of human transformations over time, some landscapes may contain residual damaged habitats hosting testimony of past biodiversity that can be called “biodiversity heritage relicts”. From this perspective, the aim of the paper is to describe an applicative approach to habitat restoration in social-ecological landscapes. The approach entails the restoration of vegetation using GIS analysis integrated with field activities and a phytosociological method. The methodology includes expert and stakeholder involvement in order to increase the resilience of the measures over time, thereby consolidating landscape value. The approach was applied in the municipality of Campi Salentina, Province of Lecce, Italy, and the result was the restoration of an important riparian habitat classified under Directive 92/43/EEC as “Salix alba and Populus alba galleries” (code 92A0), which had not previously been recorded in the Province of Lecce. In this case, the project re-established a natural habitat that represented a “biodiversity heritage relict” in the landscape. The paper shows that direct knowledge of the landscape and the ability to identify “biodiversity heritage relicts”, in combination with a phytosociological approach, can enhance the effectiveness of ecological restoration projects. Moreover, social and institutional integration in projects helps ensure the management of the measures over time.

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Morphological traits of Bryum argenteum and its response to environmental variation in arid and semi-arid areas of Tibet

Cited by 12 publications

References 35 publications

Spatial Pattern and Dynamic Change of Vegetation Greenness From 2001 to 2020 in Tibet, China

Spatial Pattern and Dynamic Change of Vegetation Greenness From 2001 to 2020 in Tibet, China

500 million years of charted territory: functional ecological traits in bryophytes

Habitat Restoration: An Applicative Approach to “Biodiversity Heritage Relicts” in Social-Ecological Systems

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