Analysis of ecological network evolution in an ecological restoration area with the MSPA-MCR model: A case study from Ningwu County, China

Ecological Indicators, Journal Year: 2025, Volume and Issue: 170, P. 113067 - 113067

Published: Jan. 1, 2025

Language: Английский

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Disentangling Ecological Restoration's Impact on Terrestrial Water Storage

Geophysical Research Letters, Journal Year: 2025, Volume and Issue: 52(4)

Published: Feb. 12, 2025

Abstract Large‐scale ecological restoration (ER) in semiarid regions is often associated with substantial terrestrial water storage (TWS) depletion. This study challenged previous estimates by demonstrating the critical importance of considering other human activities when assessing ER impacts on TWS. Using a novel analytical framework integrating GRACE satellite data and ground observations, we analyzed TWS changes China's Mu Us Sandyland under two scenarios: without mining farming activities. Our results show that consumed at an average rate 11.7 ± 12.2 mm yr −1 from 2003 to 2022. Neglecting led 251% overestimation ER's effect provided more nuanced understanding resource dynamics restored ecosystems, emphasizing need for comprehensive approaches assessments informing sustainable land management strategies globally.

Language: Английский

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Spatial and temporal variations in the relationship between the topological structure of eco-spatial network and biodiversity maintenance function in China

Ecological Indicators, Journal Year: 2022, Volume and Issue: 139, P. 108919 - 108919

Published: April 28, 2022

Enhancing and protecting biodiversity is a prerequisite for achieving "harmony between human beings nature". With the disturbance of activities, landscape pattern constantly changing, changing flow species, information, energy within landscape, which in turn has significant impact on biodiversity. Therefore, based InVEST model, this paper obtained spatial distribution maintenance function established Chinese conservation empowerment network through GIS analysis. Based complex theory, dynamic evolution characteristics ecological structure were analyzed, relationship its topological terrestrial was revealed. The results show that: high south, southwest, northeast China low west, corridors also dense east sparse west. Over past 20 years, average grown slowly, community increased, more stable, connectivity stronger. weight degree, betweenness centrality, PageRank, eigenvector centrality significantly correlated with function, indicating that plays huge role maintaining By focusing building correlation sources, constructing to adjust connections, integrity important habitats will be gradually restored, so land can exert greater benefits.

Language: Английский

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Ecological network identification and connectivity robustness evaluation in the Yellow River Basin under a multi-scenario simulation

Ecological Modelling, Journal Year: 2023, Volume and Issue: 482, P. 110384 - 110384

Published: April 28, 2023

Language: Английский

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Incorporating network topology and ecosystem services into the optimization of ecological network: A case study of the Yellow River Basin

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 169004 - 169004

Published: Nov. 29, 2023

Language: Английский

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How do natural and human factors influence ecosystem services changing? A case study in two most developed regions of China

Ecological Indicators, Journal Year: 2023, Volume and Issue: 146, P. 109891 - 109891

Published: Jan. 11, 2023

Understanding the mechanisms that influence changes in ecosystem services (ESs) is critical to sustainable management of ecosystems. However, existing studies ignore different importance influencing factors ESs periods and do not consider spatiotemporal heterogeneity factors. In this study, we first quantified six for Yangtze River Delta (YRD) Pearl (PRD) 2000 2020 based on remote sensing data, including water yield, grain production, climate regulation, air purification, biodiversity, recreation. Then, eight were selected from natural human perspectives, random forest was used determine level ESs. Finally, GTWR model explore spatial temporal differentiation The results showed variation YRD PRD irregular 2020. 2000, (forest, topography, climate) dominated regional ESs, while (population, economy, activities) gradually replaced dominance multiple significant, interpret ecological implications detail propose a series policy recommendations. study could provide an important reference scientific guidance enhance sustainability developed regions.

Language: Английский

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Construction and evaluation of ecological networks among natural protected areas based on “quality-structure–function”: A case study of the Qinghai-Tibet area

Ecological Indicators, Journal Year: 2023, Volume and Issue: 151, P. 110228 - 110228

Published: April 24, 2023

The construction of natural protected area (NPA) systems is an important initiative to protect biodiversity and maintain the health stability ecosystems. Qinghai-Tibet (QTA) has extremely high ecological value, NPAs in this account for more than half China. As human activities have intensified, increasing number research been conducted on region. However, assessment network QTA underexplored. This study assessed networks derived from NPA system a "quality-structure–function" perspective. First, used remote sensing index (RSEI) map resistance surface QTA, generated corridors based circuit theory, identified barriers pinch points evaluate quality network. Next, spatial syntax method was assess structural characteristics connectivity Finally, analysed changes activity intensity species population around quantitatively explore corridor's maintenance function context increased activity. findings demonstrated that within generally good. some areas such as Hung River Valley Qilian-Qinghai Lake were observed exhibit concerns, barrier points. These challenges stem competing interests environmental development utilization land. In terms indicators network, closeness eastern part higher western part; however, mean depth shows opposite pattern, indicating northeast better overall west. addition, footprint decreased continuously with distance over last two decades, noticeable increase occurred, magnitude grows experiencing mounting pressure due frequent activities. still play key role maintaining protecting environment. could provide scientific support eco-security shield functions globally.

Language: Английский

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Improving landscape ecological network connectivity in urbanizing areas from dual dimensions of structure and function

Ecological Modelling, Journal Year: 2023, Volume and Issue: 482, P. 110380 - 110380

Published: April 24, 2023

Language: Английский

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Identifying and optimizing ecological security patterns from the perspective of the water-energy-food nexus

Journal of Hydrology, Journal Year: 2024, Volume and Issue: 632, P. 130912 - 130912

Published: Feb. 15, 2024

Language: Английский

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Ecological security pattern based on remote sensing ecological index and circuit theory in the Shanxi section of the Yellow River Basin

Ecological Indicators, Journal Year: 2024, Volume and Issue: 166, P. 112382 - 112382

Published: July 19, 2024

Evaluating the quality and establishing an ecological network are beneficial for maintaining ecosystem health stability optimizing national spatial pattern. This study used morphological pattern analysis (MSPA) remote sensing index (RSEI) to identify sources (ESs) in Shanxi section of Yellow River Basin (SYRB). Comprehensive resistance surface is constructed corrected based on weight. The corridor was identified by Linkage Mapper tool, node barrier points were determined basis minimum cost path theory establish security (ESP) SYRB. 108 ESs identified, with a total area 34,157.42 km2. unevenness distribution obvious concentrated areas higher elevations environmental quality. We 243 corridors (ECs), totaling 3,259.44 km. main land use types ECs cultivated land, forest, grassland. Low-resistance mainly distributed central pearl-shaped basin, connecting two major source east west. high-resistance southern part which had highly fragmented at periphery. 41 pinch points, Mianshan Mountain, plays key role energy exchange between ESs. 26 overlapped ECs, obstructed landscape connectivity. A comprehensive "two zones, one belt, three corridors" ESP established, providing solid theoretical support practical guidance future sustainable development enhanced design

Language: Английский

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