Comprehensive evaluation system for vegetation ecological quality: a case study of Sichuan ecological protection redline areas

Cui, Linlin; Chen, Yanhui; Yuan, Yongyi; Luo, Yi‐Bo; Huang, Shiqi; Li, Guosheng

doi:10.3389/fpls.2023.1178485

Cited by 8 publications

(4 citation statements)

References 69 publications

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“…Under the joint influence of climate change and human activities, ecosystem change is a comprehensive representation of the zonal rules of ecosystems. In order to understand causes of ecosystem changes, many scholars have conducted quantitative analysis of climate change and human activities on ecosystem changes using residual methods [55], geographic detector model [56], factor control methods [57], etc. However, the quantitative identification of the spatiotemporal dynamic correlation characteristics between different protection systems, different restoration measures, and ecosystem changes is limited.…”

Section: Discussionmentioning

confidence: 99%

Gradient Analysis of Spatial-Temporal Change and Conservation Effectiveness in Different Ecological Protected Areas

Hou,

Zhu,

Zhai

et al. 2024

Diversity

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The protection of ecological systems is currently a trending topic. Numerous countries have implemented various measures to safeguard ecosystems. Evaluating the effectiveness of regional ecological protection and cooperative conservation is of paramount importance. In this paper, Hainan Island, China, was taken as an example to construct an evaluation framework of the ecosystem change characteristics and conservation effects of different types of protected areas. In this way, the study evaluated the ecological status of important protected areas and the effects of collaborative management and control, and it discussed the changes in ecological status and protection effects. The results revealed the following. (1) Important protected areas occupy a large proportion of natural ecological space, reaching 76.33%, more than twice the proportion of ecological space on Hainan Island. In the past 20 years, the ecological space retention rate has increased by 0.57%. (2) The contribution of excellent-quality and good-quality ecosystems is the greatest, accounting for 82.65% of the whole island. In the past 20 years, the ec7osystem quality has improved in more than 80% of the areas. The proportion of excellent-quality and good-quality ecosystems is as high as 96.75% in these conservation areas, and their contribution to Hainan Island is 44.29%, while conservation areas only account for about 38%. (3) The ecosystem services of Hainan Island have improved and become stable in the past 20 years. The contribution of all types of protected areas to the ecosystem services of Hainan Island is more than 53.22%. In general, the ecological quality and service function has increased in Hainan Island, and the ecological space tends to be stable. Different types of protected areas have effectively protected various ecosystems on Hainan Island with different protection and management mechanisms.

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Section: Discussionmentioning

confidence: 99%

Gradient Analysis of Spatial-Temporal Change and Conservation Effectiveness in Different Ecological Protected Areas

Hou,

Zhu,

Zhai

et al. 2024

Diversity

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“…The distribution of land use types shows that the region is dominated by grasslands. This requires the local government to enhance the protection of grasslands, such as reducing or restricting livestock grazing activities, to protect the ecosystems in sensitive areas [61,62]. Moreover, the inappropriate management of residue disposal sites can lead to the decline in land ecological quality (Figure 13).…”

Section: Policy Implicationsmentioning

confidence: 99%

Dynamic Integrated Ecological Assessment along the Corridor of the Sichuan–Tibet Railway

Ji,

Yang,

Pei

et al. 2024

Land

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Engineering activities along the Sichuan–Tibet Railway (STR) could cause land degradation and threaten the surrounding ecological security. It is crucial to evaluate the integrated land ecology during and after the construction of this project. This study assesses the land ecology along the STR corridor from 2000 to 2022 using a transfer matrix, the analytic hierarchy process (AHP), and the PSR-TOPSIS model. The main results are as follows: (1) The novel comprehensive ecological assessment process including nine indicators is feasible. (2) The high-quality land ecological, surface vegetation, and environmental regions were concentrated in Ya’an and Nyingchi, whereas the low-quality regions were situated in Qamdo and Garze Tibetan Autonomous Prefecture. (3) There was an overall decline in the integrated land ecological quality along the STR from 2000 to 2022. While it steadily improved in the Ya’an and Nyingchi regions from 2010 to 2022, it continued to decline around the Qamdo region. (4) The most degraded land-use type during the 22 years was grassland, and farmland was the most secure land-use type. Overall, spatial analyses and examinations of residue disposal sites suggested that these locations have negatively impacted integrated land ecology since the beginning of the STR construction project. Our findings have implications for preserving the ecological ecosystem and ensuring the sustainability of the STR construction project.

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“…The NPP in the Sichuan Basin, the middle reaches of Dongting Lake, and the upper reaches of the Jinsha River have exhibited varying degrees of growth. The Sichuan Basin, in particular, has shown a notable increase, with a predominance of moderate stability, along with scattered areas of lower stability [54,55]. This suggests that the reforestation efforts by the Sichuan municipal government in recent years have been effectively executed.…”

Section: Spatiotemporal Distribution and Change Of Nppmentioning

confidence: 99%

Analysis of Net Primary Productivity Variation and Quantitative Assessment of Driving Forces—A Case Study of the Yangtze River Basin

Liu,

Shi,

Wang

et al. 2023

Plants

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Net primary productivity (NPP) can indirectly reflect vegetation’s capacity for CO2 fixation, but its spatiotemporal dynamics are subject to alterations to some extent due to the influences of climate change and human activities. In this study, NPP is used as an indicator to investigate vegetarian carbon ability changes in the vital ecosystems of the Yangtze River Basin (YRB) in China. We also explored the NPP responses to climate change and human activities. We conducted a comprehensive analysis of the temporal dynamics and spatial variations in NPP within the YRB ecosystems from 2003 to 2020. Furthermore, we employed residual analysis to quantitatively assess the contributions of climate factors and human activities to NPP changes. The research findings are as follows: (1) Over the 18-year period, the average NPP within the basin amounted to 543.95 gC/m2, displaying a noticeable fluctuating upward trend with a growth rate of approximately 3.1 gC/m2; (2) The areas exhibiting an increasing trend in NPP account for 82.55% of the total study area. Regions with relatively high stability in the basin covered 62.36% of the total area, while areas with low stability accounted for 2.22%, mainly situated in the Hengduan Mountains of the western Sichuan Plateau; (3) NPP improvement was jointly driven by human activities and climate change, with human activities contributing more significantly to NPP growth. Specifically, the contributions were 65.39% in total, with human activities contributing 59.28% and climate change contributing 40.01%. This study provides an objective assessment of the contributions of human activities and climate change to vegetation productivity, offering crucial insights for future ecosystem development and environmental planning.

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Comprehensive evaluation system for vegetation ecological quality: a case study of Sichuan ecological protection redline areas

Cited by 8 publications

References 69 publications

Gradient Analysis of Spatial-Temporal Change and Conservation Effectiveness in Different Ecological Protected Areas

Gradient Analysis of Spatial-Temporal Change and Conservation Effectiveness in Different Ecological Protected Areas

Dynamic Integrated Ecological Assessment along the Corridor of the Sichuan–Tibet Railway

Analysis of Net Primary Productivity Variation and Quantitative Assessment of Driving Forces—A Case Study of the Yangtze River Basin

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