Assessment of ecological importance of the Qinghai-Tibet Plateau based on ecosystem service flows

Lin, Ziyan; Xiao, Yi; Ouyang, Zhiyun

doi:10.1007/s11629-020-6448-x

Cited by 30 publications

(8 citation statements)

References 34 publications

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“…One category selects patches with better habitat quality directly, such as parks, nature reserves, waters, and woodlands, as ecological sources, using methods such as morphological spatial pattern analysis (MSPA) [17][18][19], landscape connectivity analysis [20,21], and the integrated valuation of ecosystem services and trade-offs (InVEST) model [22][23][24]. Another category considers the spatial characteristics of the study area for multi-indicator ecological assessments, such as ecosystem service importance assessments [11,25], ecological sensitivity assessment [26,27], and environmental suitability assessments [28,29]. Such methods pay more attention to the functional attributes of ecosystems, as this approach is conducive to accurately extracting areas with potential environmental problems and providing an effective scientific basis for the delineation of ecological functional areas [30].…”

Section: Introductionmentioning

confidence: 99%

“…They have focused less on areas with fragile ecological environments and have not yet formed a standardized model for the comprehensive assessment of ecological security [44]. Related studies commonly use mathematical models such as integrated index method [25], hierarchical analysis, fuzzy comprehensive evaluation, pressure-state-response (PSR) model [45,46], driving force-pressure-state-impactresponse (DPSIR) model [47], Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS) model [48], and ecological footprint model [49] for ecological security evaluation, which can better reflect the coupled benefits of socioeconomic development and ecological protection [50]. Among them, the integrated index method can identify the driving factors of ecological security changes relatively scientifically [51].…”

Section: Introductionmentioning

confidence: 99%

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Ecological Security Assessment Based on the “Importance–Sensitivity–Connectivity” Index and Pattern Construction: A Case Study of Xiliu Ditch in the Yellow River Basin, China

Wang

Yan

et al. 2023

Land

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Resource, environmental, and ecological issues have become major constraints to the development of many regions. The Yellow River Basin is an important barrier for maintaining ecological security in northern China, but it has been impacted by problems such as severe soil erosion and declining biodiversity. The rational construction of ecological security patterns is important to enhance ecosystem functions and maintain regional ecological security. In this study, a comprehensive ecological security assessment system was constructed by selecting ecosystem service importance, ecological sensitivity, and landscape connectivity to assess the ecological security of Xiliu Ditch, an ecologically fragile region of the Inner Mongolia section of the Yellow River Basin in China. The assessment results showed significant spatial heterogeneity, with medium- and low-security value areas dominating, while high-security value areas accounted for only 18.7% of the study area. Seventeen ecological sources were identified from the high-security areas, which were mainly composed of grassland, woodland, and water bodies, most of which are distributed in the southern part of the study area. Twenty ecological corridors were selected by the minimum cumulative resistance model and gravity model and classified into 15 construction corridors and 5 potential corridors. Forty-six ecological nodes were defined, including twenty strategic points, nine potential strategic points, and seventeen break points. On this basis, we constructed an ecological security pattern of “two belts, three cores, six zones, multiple corridors and multiple nodes” and proposed corresponding ecological governance measures. This study explores the ecological security pattern at the small watershed scale, which helps to realize the fine management of the Xiliu Ditch basin and, on this basis, can provide scientific support for the ecological protection and sustainable development of the Yellow River basin. In addition, the ecological security assessment system proposed in this study can provide new ideas for the construction of ecological security patterns in similar ecologically fragile areas around the globe.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ecological Security Assessment Based on the “Importance–Sensitivity–Connectivity” Index and Pattern Construction: A Case Study of Xiliu Ditch in the Yellow River Basin, China

Wang

Yan

et al. 2023

Land

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“…The tourism ecosystem service was selected to account for cultural services, in accordance with the classification scheme of the Millennium Ecosystem Assessment (MA, 2005). The tourism service was evaluated in different parts of SWC in three aspects: the ‘radiation’ of tourist attractions, transportation accessibility and ecological importance (Lin et al, 2021). 1073 natural landscapes and 200 natural heritage sites were screened and categorized into four grades ranging from low to high.…”

Section: Methodsmentioning

confidence: 99%

Protecting biodiversity to support ecosystem services: An analysis of trade‐offs and synergies in southwestern China

Lin

Xiao

et al. 2022

Journal of Applied Ecology

Self Cite

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1. Biodiversity plays a key role in supporting ecosystem services. Understanding this relationship sheds light on the linkages between ecological structure and functioning, thereby increasing the capacity for effective strategies of ecosystem conservation and restoration.2. Focusing on southwestern China, a global biodiversity hotspot, we evaluated the spatial correlations between biodiversity and four regulating services and one cultural service. We calculated critical points of change in the relationship between biodiversity and each of these ecosystem services and categorized the region into 'threshold', 'sensitive', 'saturation', 'recession' and 'low-value' areas.3. The results show that the spatial correlation between biodiversity and regulating services was mainly positive in the Nujiang River and Lancang River basins and the Dayao Mountains, while biodiversity was negatively correlated with provisioning and cultural services in the Qionglai and Hengduan Mountains.The slope value of the curve fitted for the biodiversity-ecosystem service relationships was approximately 1 when species richness was approximately 50; the corresponding areas were termed threshold areas and were pivotal zones of change in the biodiversity-ecosystem service relationships. These areas were mainly distributed in the Qionglai Mountains, Hengduan Mountains and Nujiang River Basin, and should be prioritized for monitoring and biodiversity protection.4. Synthesis and applications: Our findings can help improve understanding of the spatially complex interactions between biodiversity and multiple ecosystem services, as well as identifying areas that should be prioritized for protection and restoration; they also contribute towards a scientific framework for integrated management and policy in general.

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“…Zhang et al [6] analyzed the impact of climate change and human activities on wetland variations in the Qinghai-Tibet Plateau and found that the Chaidamu Basin harbors the highest proportion of artificial wetlands across the plateau. Additionally, since the release of the "Regional Ecological Construction and Environmental Protection Plan for the Qinghai-Tibet Plateau" by the Chinese government in 2011, the ecological environment of the Qinghai-Tibet Plateau has been influenced by artificial restoration efforts, leading to gradual improvements in ecological conditions [100]. Taken together, this indicates that human activities contribute to the increase in wetland area within the basin.…”

Section: Spei Trend and Its Impact On Wetland Ecosystemsmentioning

confidence: 99%

Remotely Sensed Changes in Qinghai–Tibet Plateau Wetland Ecosystems and Their Response to Drought

Fu,

Yu,

Bashir

et al. 2024

Sustainability

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Wetland ecosystems in the Qinghai–Tibet Plateau are pivotal for global ecology and regional sustainability. This study investigates the dynamic changes in wetland ecosystems within the Chaidamu Basin and their response to drought, aiming to foster sustainable wetland utilization in the Qinghai–Tibet Plateau. Using Landsat TM/ETM/OLI data on the Google Earth Engine platform, we employed a random forest (RF) method for annual long-term land cover classification. Standardized precipitation evapotranspiration indices (SPEI3, SPEI6, SPEI9, and SPEI12) on different time scales were used to assess meteorological drought conditions. We employed a Pearson correlation analysis to examine the relationship between wetland changes and various SPEI scales. The BFASAT method was used to evaluate the impact of SPEI12 trends on the wetlands, while a cross-wavelet analysis explored teleconnections between SPEI12 and atmospheric circulation factors. Our conclusion is as follows: The wetlands, including lake, glacier, and marsh wetlands, exhibited a noticeable increasing trend. Wetland expansion occurred during specific periods (1990–1997, 1998–2007, and 2008–2020), featuring extensive conversions between wetlands and other types, notably the conversion from other types to wetlands. Spatially, lake and marsh wetlands predominated in the low-latitude basin, while glacier wetlands were situated at higher altitudes. There were significant negative correlations between the SPEI at various scales and the total wetland area and types. SPEI12 displayed a decreasing trend with non-stationarity and distinct breakpoints in 1996, 2002, and 2011, indicating heightened drought severity. Atmospheric circulation indices (ENSO, NAO, PDO, AO, and WP) exhibited varying degrees of resonance with SPEI12, with NAO, PDO, AO, and WP demonstrating longer resonance times and pronounced responses. These findings underscore the significance of comprehending wetland changes and drought dynamics for effective ecological management in the Chaidamu Basin of the Qinghai–Tibet Plateau.

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Assessment of ecological importance of the Qinghai-Tibet Plateau based on ecosystem service flows

Cited by 30 publications

References 34 publications

Ecological Security Assessment Based on the “Importance–Sensitivity–Connectivity” Index and Pattern Construction: A Case Study of Xiliu Ditch in the Yellow River Basin, China

Ecological Security Assessment Based on the “Importance–Sensitivity–Connectivity” Index and Pattern Construction: A Case Study of Xiliu Ditch in the Yellow River Basin, China

Protecting biodiversity to support ecosystem services: An analysis of trade‐offs and synergies in southwestern China

Remotely Sensed Changes in Qinghai–Tibet Plateau Wetland Ecosystems and Their Response to Drought

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