A study on the dynamic evaluation of ecosystem health in the Yangtze river Basin of China

Shi, Ziteng; Zhou, SL

doi:10.1016/j.ecolind.2023.110445

Cited by 10 publications

(4 citation statements)

References 30 publications

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“…(Figures 2 and 3). The reason was that compared to forest ecosystems, grassland ecosystems were more fragile, with poorer resistance and stability and lower biodiversity [40], therefore resulting in a low HQ. From 2001 to 2020, due to the increase in urban construction land in most areas of Shaanxi Province upstream of the watershed and Hubei Province downstream of the watershed [9], the HQ in the vicinity of these towns decreased [21].…”

Section: Spatiotemporal Dynamics and Driving Factors Of Essmentioning

confidence: 99%

Driving Factors and Trade-Offs/Synergies Analysis of the Spatiotemporal Changes of Multiple Ecosystem Services in the Han River Basin, China

Han,

Yang,

Wang

et al. 2024

Remote Sensing

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Uncovering the trade-offs and synergy relationship of multiple ecosystem services (ESs) is important for scientific ecosystem management and the improvement of ecological service functions. In this study, we investigated the spatiotemporal changes of four typical ES types (i.e., water yield (WY), carbon storage (CS), soil conservation (SC), and habitat quality (HQ)) from 2001 to 2020 in the Han River Basin (HRB). Meanwhile, the trade-offs and synergies between paired ESs and the socioecological drivers of these ESs were further explored. The results showed that grassland, cropland, and bare land decreased by 12,141.3 km2, 624.09 km2, and 22.1 km2 during the study period, respectively, which can be attributed to their conversion to forests in the HRB. Temporally, the WY, CS, and SC all showed a continuously increasing trend. Spatially, WY and HQ exhibited bipolar clustering characteristics, with WY exhibiting low-value clustering in the upstream and high-value clustering in the downstream, while CS showed the clustering characteristics of a scattered distribution of cold and hot spots from 2001 to 2020. The spatial patterns of aggregation locations in CS and HQ were relatively similar, with clusters of higher ES values mainly distributed in the western and central regions and clusters of lower ES values mainly located in the eastern and southeastern regions, while the aggregation of WY was spatially concentrated. Overall, the CS showed a significant positive correlation with HQ, but a significant negative correlation with WY. Spatially, WY and HQ, CS, and SC showed a substantial trade-off relationship in the northwest and southeast parts of the study area, while HQ, CS, and SC mainly exhibited a synergistic relationship in most parts of the study area. Slope and temperature had high influencing factor coefficients on multiple ESs; the mixed effect of terrain and natural factors was significantly greater than the impact of a single factor on ESs, and terrain factors played an essential role in the changes in ESs. The findings can provide technical and theoretical support for integrated scientific ecosystem management and sustainable development at the local scale.

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Section: Spatiotemporal Dynamics and Driving Factors Of Essmentioning

confidence: 99%

Driving Factors and Trade-Offs/Synergies Analysis of the Spatiotemporal Changes of Multiple Ecosystem Services in the Han River Basin, China

Han,

Yang,

Wang

et al. 2024

Remote Sensing

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“…Human activities, such as the expansion of impervious surfaces, agricultural practices, population growth, and economic development, are causing irreversible damage to natural habitats, with basin regions experiencing increasingly pronounced effects [1,2]. Understanding the intricate interplay between human activities and natural habitats within the Yangtze River Basin (YRB) is imperative given its status as the third-largest basin globally [3]. The ramifications of habitat degradation in this region are profound, potentially leading to ecosystem collapse, compromised water quality, climate instability, and threats to species survival.…”

Section: Introductionmentioning

confidence: 99%

“…The river traverses a vast geographic area with abundant natural wealth, diverse industrial chains, and a highly prosperous economic system [30]. The Yangtze River Basin (YRB) holds significant importance for China's socio-economic development and ecological security [3]. Presently, conservation efforts for the Yangtze River have garnered considerable attention both domestically and internationally [31].…”

Section: Introductionmentioning

confidence: 99%

The Impact of Human Activity Expansion on Habitat Quality in the Yangtze River Basin

Bian,

Yang,

Zhao

et al. 2024

Land

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Globally, natural habitats have suffered tremendous damage from human activities, a phenomenon that is increasingly evident in basin regions. The management of natural habitats in basin regions is dependent on understanding of the various impacts of human activities on these ecosystems. Despite the various studies that have been conducted on the effects of human activities on habitats in basin regions, there is still a lot of doubt regarding the impact of these activities on the quality of basin ecosystems. To fill this gap, this study employs a series of spatial analysis methods and logistic regression modeling to delve into the spatial and temporal patterns of human activities and habitat quality in the Yangtze River Basin (YRB) as well as the differences in the impacts of human activities on habitat quality in the sub-basins of the YRB. The findings indicate a 0.408% decline in the overall environmental quality of the YRB area from 2000 to 2020, accompanied by a 15.396% surge in human activities. Notably, the southeastern Qilian Mountains and the mountainous regions in the northwestern sector of the Sichuan Basin emerge as pivotal areas for habitat quality restoration. Conversely, the southwestern Qilian Mountains and the urban clusters in the Yangtze River Delta (YRD) face significant habitat quality deterioration. Spatial regression analyses reveal a noteworthy trend: the burgeoning human activities in the Yangtze River region pose a substantial threat to habitat recovery efforts. Further differential analyses focusing on the upper, middle, and lower basin segments underscore that human activities exert the most pronounced impact on habitat quality within the lower basin region, while the upper basin experiences the least influence. The implications of this study are manifold. It furnishes valuable policy insights for the comprehensive management and targeted preservation of habitats across the YRB. By delineating areas of habitat restoration and degradation and highlighting the differential impacts of human activities across basin segments, this research lays a solid foundation for informed decision making in habitat conservation and ecosystem management within the YRB.

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“…Healthy watershed ecosystems are the basis for the long-term economic and social development of the watershed (Shi and Zhou, 2023). However, human activities have altered the natural hydrological processes of rivers to a certain extent, causing some negative impacts on river ecosystems (Jiang et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Calculation of River Ecological Flow Based on Multiple Hydrological Methods

Wei,

Li,

Liu

et al. 2023

Preprint

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Under the backdrop of increasing water utilization, river ecosystem problems continue to emerge. Determining the ecological flow of rivers is one of the keys to the comprehensive restoration of river ecosystems. This paper determines the operability of runoff sequences by means of the Mann-Kendal test, quantifies the minimum ecological flow through five representative hydrological methods, including Intra-year distribution (IYD), Flow during curve (FDC), Q90, Monthly minimum average flow (MMAF) and Average flow in the driest month (AFDM), and calculates the suitable ecological flow by the monthly frequency (M-F) method in three different scenarios. In addition, a comprehensive comparison of the methods is made from various aspects to give the recommended methods. Taking the Shaying River basin as the research objects, the AFDM method achieves the best satisfaction in terms of water demand, the Q90 method and the FDC method have the highest satisfaction level, and IYD method best meet the requirements of hydrological rhythms. The suitable ecological flow derived from the M-F method under Scenario a is optimally satisfactory in all respects. It is recommended to determine the minimum and suitable ecological flow processes by IYD method and the result under scenario b, respectively. This study can be used to provide a scientific and effective reference basis for integrated river management.

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A study on the dynamic evaluation of ecosystem health in the Yangtze river Basin of China

Cited by 10 publications

References 30 publications

Driving Factors and Trade-Offs/Synergies Analysis of the Spatiotemporal Changes of Multiple Ecosystem Services in the Han River Basin, China

Driving Factors and Trade-Offs/Synergies Analysis of the Spatiotemporal Changes of Multiple Ecosystem Services in the Han River Basin, China

The Impact of Human Activity Expansion on Habitat Quality in the Yangtze River Basin

Calculation of River Ecological Flow Based on Multiple Hydrological Methods

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