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Plant Diversity as a Good indicator of Vegetation Stability in a Typical Plateau Wetland

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Journal of Mountain Science 2014年第2期11卷 464-474页

作者： LI Wei TAN Rui YANG Yu-ming WANG Juan Southwest Forestry University Yunnan Academy of Biodiversity Key Laboratory of the State Forestry Administration for Conservation of Yunnan Rare Endangered & Endemic Plant Yunnan Academy of Forestry Key Laboratory of Yunnan Provincial for Forest Plant Cultivation and Utilization Yunnan Academy of Forestry

Biotic indicators have been widely used to monitor wetland health. However, few studies have explicitly evaluated if plant diversity could serve as a useful community-level indicator of wetland stability,especially when wetlands are confronted with anthropogenic perturbations. Based on three-year record of wetland plant species abundance in Napahai plateau wetland, Shangri-la under the influence of varying anthropogenic perturbation types, our study tests the impact of such perturbations on plant richness and the relationship between ecosystem temporal stability and plant richness, and further assesses the effectiveness of using plant diversity indicator to probe ecosystem temporal stability of Napahai plateau wetland and the potential mechanisms. The results showed that anthropogenic perturbations could have contributed significantly to realistic variation in plant diversity, and further demonstrated that ecosystem temporal stability was positively related to realistic variation in plant diversity. In particular, communities with high levels of diversity might have better capacity to dampen perturbation impacts than communities with low levels of diversity, and statistical averaging could have played an important role in causing greater stability in more diverse communities. Also, asynchrony might have a stabilizing effect on community stability, and diversity could have stabilized communities through both species asynchrony and population stability propagation. Therefore, our results suggest that plant diversity could be used as a useful indicator of the stability conditions of plateau wetland ecosystems confronted with anthropogenic perturbations, and the preservation of plant communities at sufficient abundance and diversity is necessary for maintaining healthy plateau wetlands and for sustaining their essential ecosystem functions and services.

关键词： Plateau wetland Plant diversity Community stability ecological indicator

Evaluating the success of engineering disturbed slope eco-restoration in the alpine region, southeast Qinghai-Tibet Plateau, China

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Journal of Mountain Science 2021年第11期18卷 2820-2832页

作者： HU Xu-dong GAO Jia-zhen ZHOU Ming-tao SHEN Jian ZHAO Tong-hui Key Laboratory of Geological Hazards on Three Gorges Reservoir Area China Three Gorges UniversityMinistry of EducationYichang 443002China College of Civil Engineering and Architecture China Three Gorges UniversityYichang 443002China DG Hydropower Branch Huadian Tibetan Energy Co.Ltd.Shannan 856200China Huadian Tibetan Energy Co. Ltd.Lhasa 850000China

Slope eco-restoration has always received extensive attention as a positive way to reverse ecosystem deterioration derived from human interventions.A simplified frameworkis proposed to undertake a quantitative evaluation of the engineering disturbed slope eco-restoration success in the alpine region,southeast Qinghai-Tibet *** Daguhydropower project that disturbsthe local ecosystem to some certainwas selected as the study *** August 2018,six types of slope(soil,rock,soil-rock,spoil,construction site,hardened)were served as the demonstration test for the slope eco-restoration with two years monitoring in the study ***,the topography,erosion,soil quality,and vegetation were selected as assessment indicators of the ***,combined with the weighting method and the expert panel,the slope eco-restoration quality index(SERQI)was established and applied in the six *** results suggested that the frost-resistant ecological substrate performed well in alpine region,and the SERQI value is in accordance with the actual monitoring level with spoil slope>soil slope>construction site slope>soil-rock slope>rock slope>hardened *** proposed framework could support slope eco-restoration practitioners for making a more objective and quantitative evaluation easily for the post-implementation restoration.

关键词： Slope eco-restoration Restoration evaluation ecological indicator Hydropower station Qinghai-Tibetan Plateau

Pollinator diversity benefits natural and agricultural ecosystems,environmental health,and human welfare

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Plant Diversity 2022年第5期44卷 429-435页

作者： Daniel Mutavi Katumo Huan Liang Anne Christine Ochola Min Lv Qing-Feng Wang Chun-Feng Yang CAS Key Laboratory of Aquatic Botany and Watershed Ecology Wuhan Botanical GardenChinese Academy of SciencesWuhan 430074China College of Life Sciences University of Chinese Academy of SciencesBeijing 100049China Center of Conservation Biology Core Botanical GardensChinese Academy of SciencesWuhan 430074China

Biodiversity loss during the Anthropocene is a serious ecological *** are important vectors that provide multiple essential ecosystem services but are declining rapidly in this changing ***,several studies have argued that a high abundance of managed bee pollinators,such as honeybees(Apis mellifera),may be sufficient to provide pollination services for crop productivity,and sociological studies indicate that the majority of farmers worldwide do not recognize the contribution of wild pollinator diversity to agricultural ***,we review the importance of pollinator diversity in natural and agricultural ecosystems that may be thwarted by the increase in abundance of managed pollinators such as *** also emphasize the additional roles diverse pollinator communities play in environmental safety,culture,and *** indicates that in natural ecosystems,pollinator diversity enhances pollination during environmental and climatic perturbations,thus alleviating pollen *** agricultural ecosystems,pollinator diversity increases the quality and quantity of crop ***,studies indicate that many pollinator groups are useful in monitoring environmental pollution,aid in pest and disease control,and provide cultural and aesthetic *** the uncertainties that may accompany rapid environmental changes in the Anthropocene,the conservation of pollinator diversity must expand beyond bee ***,the value of pollinator diversity maintenance extends beyond the provision of pollination ***,conservation of pollinator diversity requires an interdisciplinary approach with contributions from environmentalists,taxonomists,and social scientists,including artists,who can shape opinions and behavior.

关键词： Bee Complementarity ecological indicator Plant community Pollen limitation

Avian genetic ecotoxicology： DNA of the canary in a coalmine

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Current Zoology 2014年第2期60卷 285-298页

作者： Andrea BONISOLI-ALQUATI Department of Biological Sciences University of South Carolina Columbia SC 29208 USA

Genotoxic chemicals, through damage and alteration of the genetic material of wild organisms, pose significant threats to the persistence of wild animal populations. Their damaging effects can ultimately impair the health of the ecosystem and its provision of services to human society. Bird species are good candidates for the role of sentinels of the effects of genotoxins, thanks to （i） the diversity of their ecological niches, （ii） their ubiquity across environments, （iii） their conspicuousness, abundance and approachability, together with （iv） their well-known life histories and the availability of historical data series. Avian diversity increases the likelihood that adequate model species be available for monitoring genotoxicants and assessing their impact. This paper reviews the methods utilized by genetic ecotoxicological studies of wild birds, highlighting their benefits and shortcomings. It also summarizes the genetic ecotoxicological studies so far conducted. In spite of a paucity of studies, several classes of genotoxicants have already been investigated across a variety of species and environments, thus supporting the versatility of birds as monitors of genotoxic contamination. Future technical advancements and applications are suggested, with par- ticular reference to the analysis of mutational events, gene expression and methylation patterns. Finally, I argue that the development of avian genetic ecotoxicology will contribute to the understanding of natural variation in the underlying machinery for coping with DNA damage and oxidative stress, both of which are increasingly recognized as proximate factors in the evolution of life history adaptations [Current Zoology 60 （2）： 285-298, 2014].

关键词： Biomarker DNA damage Ecogenotoxicology ecological indicator ecological Risk assessment Environmental monitoring

Exergy and ecological modelling of lake environment

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Journal of Environmental Sciences 1998年第4期10卷 114-121页

作者： Zhang Yong ze Environmental Engineering Center, Chinese Research Academy of Environmental Sciences, Beijing 100012, China Wang Xuan Institute of Environmental Science, Beijing Normal University, Beijing 100875, China

The thermodynamic theories and ecological theories can be integrated effectively by exergy(biogeochemical energy of the system) to study the environmental problems of the lakes and reservoirs. In this paper, the applications of exergy in the ecological modelling of lake environment were reviewed. Results showed that exergy can be used as a goal function to estimate the parameters of the ecological model for lakes and reservoirs and to develop the structural dynamic models accounting for the changes in lake ecosystems, and as an ecological indicators for the development and evolution of lake ecosystems.

关键词： exergy ecological indicator structural dynamic model goal function.

Ecosystem health towards sustainability

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Ecosystem Health and Sustainability 2015年第1期1卷 7-22页

作者： Yonglong Lu Ruoshi Wang Yueqing Zhang Hongqiao Su Pei Wang Alan Jenkins Rober C.Ferrier Mark Bailey Geoff Squire State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085 China University of Chinese Academy of Sciences Beijing 100049 China Centre for Ecology and Hydrology Wallingford OX108BB United Kingdom James Hutton Institute Aberdeen AB158QH ScotlandUnited Kingdom

Ecosystems are becoming damaged or degraded as a result of stresses especially associated with human activities.A healthy ecosystem is essential to provide the services that humans and the natural environment require and has tremendous social and economic *** of the definition of ecosystem health includes what constitutes health and what it means to be *** evaluate ecosystem health,it is necessary to quantify ecosystem conditions using a variety of *** this paper,the main principles and criteria for indicator selection,classification of indicators for different kinds of ecosystems,the most appropriate indicators for measuring ecosystem sustainability,and various methods and models for the assessment of ecosystem health are ***,sustainability,and resilience are considered to be critical factors for ecosystem health and its *** integration of ecological understanding with socioeconomic,biophysical,biogeochemical,and public-policy dimensions is still the primary challenge in this field,and devising workable strategies to achieve and maintain ecosystem health is a key future challenge.

关键词： assessment methodology ecological indicator ecosystem functioning ecosystem health ecosystem sustainability resilience

Land Suitability of the Different Cultivars in the South Tyrol Wine Region (Italy)

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Agricultural Sciences 2020年第11期11卷 983-1006页

作者： Carlo Giovanni Ferretti GIR Geo Identity Research Bolzano Italy

The geology and geomorphology of the territory as well as microclimate are local geographical features that serve as natural ecological resources. These factors influence the biosynthetic activities of plants and their phenology, promoting biodiversity and the qualitative predispositions of grapes and wine. South Tyrol is one of the smallest wine-growing regions in Italy, but owing to its position amid the Alps, it is also one of the most multifaceted, a region of wide geographical diversity and remarkable ecological range, hosting a concentration of many different vine varieties and high quality wines. This applied territorial research investigates the particular environmental circumstances that favour this case. A data set describing approximately 26,000 vineyards and 5450 hectares has been employed to evaluate 18 subzones of wines and vines selected from 86 new geographical units defined within the DOC wine region. A new environmental mapping scheme called VHTG is proposed, based on the ecological indicators of grape variety, altitude, topoclimate and the geopedology of the vineyards. Using the VHTG method analyses, the comparisons between the territories of origin and their vine varieties can be rendered simpler and more direct, and it can distinguish the most suitable ecological conditions of wine production zones. It is now possible to examine more in detail the land suitability of the different cultivars, defined by the use of the ecological indicators summarized in the VHTG method. White grape varieties such as Sylvaner and Veltliner prefer high altitudes between 600 m and 900 m, a very high solar radiation SRI index from 80 to 95, and acidic sandy soils of silicate minerals. The most complete and intense tannic structure of regional Pinot Noir correlates to quite clayey soils with dolomite mineral, slightly alkaline, on vineyards at altitudes between 350 m and 410 m, with rather low SRI index from 60 to 75. Similar geopedological conditions favour Gewürztra

关键词： ecological indicator Wine Quality Vineyards Topoclimate Geographical Identity Terroir Soil Alto Adige-Südtirol Geographical Unit VGI Vineyard Geological Identity SRI Solar Radiation Identity Geopedology Alpine Ecosystem