The Spatial Distribution of Fallow Land and Its Ecological Effects in the Agro-Pastoral Ecotone of Northern China

Sustainability, Год журнала: 2025, Номер 17(2), С. 445 - 445

Опубликована: Янв. 8, 2025

Fallowing is a widely adopted approach for land restoration and ecological protection in the agro-pastoral ecotone of northern China. However, research on impacts fallowing this ecologically fragile region still limited. With implementation fallow policies, it essential to update delineation areas reflect current practices considerations. This study developed an index system assess vulnerability subsequently delineated based urgency. The effect was evaluated using Ecological Index. Our results show that priority secondary are predominantly located central regions ecotone, covering approximately 33.46 × 104 km2 by 2023. During policy from 2015 2019, Index each county increased, indicating improved environmental quality. 2019 2023, status declined all three counties, with minor changes Guyuan County Fengzhen City. Notably, degradation rate faster Huan without second round fallow. These indicate has beneficial various aspects environment arid semi-arid regions, including soil water conservation, network density, vegetation coverage. Furthermore, improvement demonstrates sustained over time.

Язык: Английский

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Land use change projection and driving factors exploration in Hainan Island based on the PLUS model

Frontiers in Marine Science, Год журнала: 2025, Номер 12

Опубликована: Фев. 21, 2025

Introduction Land resources play a vital role in national economic and social development. Hainan Province faces the challenge of balancing land use with conservation while striving to develop high-quality free trade port. This study aims analyze changes their driving factors support sustainable policies. Methods utilised GlobeLand30 dataset, along data on temperature, precipitation, digital elevation model (DEM), slope, soil, gross domestic product (GDP), population, apply Patch-generating Use Simulation (PLUS) model. was used analyse Island from 2000 2020, investigate relationship between change its factors. Results (1) During 2000~2020, forests cultivated were predominant type, wetlands artificial surfaces increased by two times, bare remained stable; (2) Temperature significantly influenced land, forests, grasslands, GDP population growth impacted water bodies surfaces; (3) The predicted map for 2020 achieved high accuracy (Kappa = 0.85); (4) By 2040, are expected remain dominant, grasslands decreasing, projected increase. Discussion highlights complex interactions Hainan. findings provide valuable insights policy development, ecological region.

Язык: Английский

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Analysis of Cultivated Land Productivity in Southern China: Stability and Drivers

Land, Год журнала: 2025, Номер 14(4), С. 708 - 708

Опубликована: Март 26, 2025

Owing to climate change and increasing resource competition, elucidating the control mechanism of cultivated land productivity stability is essential. Previous research has focused on anthropogenic or climatic factors individually, overlooking their combined effects; therefore, “climate–anthropogenic” framework was constructed. Net primary (NPP) employed measure investigate impact in Poyang Lake from 2001 2022. Results revealed that NPP increased but fluctuated significantly higher southern than north. The low spatial distribution fluctuation area concentrated periphery Lake, riverbank comprised middle high areas, Ganjiang River Delta exhibited fluctuation. Multiple linear regression analysis indicated positively impacted by farmland river proximity average patch fractal dimension affected negatively annual precipitation. Stable production improved utilization efficiency requires irrigation drainage system optimization adaptability change. Moreover, fragmentation should be reduced, resilience external disturbances enhanced.

Язык: Английский

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“Significant implications of diversity and stability for ecosystem sustainability necessitate differentiated management strategies: A case study of the urban agglomeration around Hangzhou Bay, China” (JEMA-D-24-12476R1)

Journal of Environmental Management, Год журнала: 2024, Номер 370, С. 122704 - 122704

Опубликована: Сен. 29, 2024

Язык: Английский

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The Combined Effects of Topography and Climate Factors Dominate the Spatiotemporal Evolution of the Ecological Environment in the Yangtze River Economic Belt

Land Degradation and Development, Год журнала: 2025, Номер unknown

Опубликована: Янв. 20, 2025

ABSTRACT The Yangtze River Economic Belt (YREB) is a key eco‐environmental protection barrier and economic engine in China. Understanding the characteristics of its spatiotemporal evolution mechanisms driving these changes important for revealing shifts ecosystem structure function. However, governing elements ecological environment how components interact remain unclear due to strong coupling impact urbanization climate change. This paper constructed long‐term series remote sensing based index (RSEI) evaluate variation YREB during 2000–2024. Subsequently, fundamental reasons were quantitatively analyzed using optimal parameters‐based geographical detector (OPGD). Results indicated: (1) average RSEI was 0.68, indicating rather high overall quality (EEQ), with 73% region having values more than 0.60. regions excellent conditions concentrated Zhejiang, Jiangxi, Guizhou, Hunan, while poorer areas northwestern Yunnan, southwestern Sichuan, western Hubei. (2) EEQ mainly showed degradation trend, degraded exceeding 80% over past 25 years. In future, most might face higher risks degradation. (3) Digital elevation model (DEM), temperature (Tem), population (POP) factors environment. There significant interactions between certain factors, interaction DEM potential evapotranspiration (Pet) explaining 62.2% distribution. findings assisted creation an civilization by offering policy proposals managing conserving environments.

Язык: Английский

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Exploring ecosystem services dynamics and interactions under future climate change: A case study of the city cluster in the middle reaches of the Yangtze River

Deleted Journal, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Язык: Английский

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Developing an Integrated Risk Assessment Method for Ecological Protection Redlines to Optimize Ecological Protection Policies: Based on a Multidimensional Assessment Framework and Risk Path Analysis

Land Degradation and Development, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

ABSTRACT As urbanization and industrialization advance, China faces increasingly severe ecological challenges. The Ecological Protection Redline (EPR) policy is a crucial tool for land use management protection but requires comprehensive risk assessment method to address ongoing This study integrated multiple factors with resilience theory establish “Hazard‐Exposure‐Vulnerability‐Damage‐Final Risk” framework, assessing the spatiotemporal dynamics risks of different EPR types in Qinghai Province over 20 years. Path analysis was further used reveal relationships between stages. Results show increasing hazards exposure Water Conservation (WC), Biodiversity Maintenance (BM) Land Desertification (LD) types, improved water conservation, stable biodiversity, controlled desertification vulnerability across regions. Integrated results downward trend WC type, BM type fluctuated improved, an initial increase followed by decrease LD type. revealed that damage WC‐type driven direct hazard impacts, BM‐type vulnerability, LD‐type indirect effects through exposure. emphasizes optimization policies reducing external disturbances enhancing ecosystem resilience, providing recommendations practical experience sustainable management.

Язык: Английский

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Spatiotemporal Distribution and Driving Mechanisms of Cropland Long-Term Stability in China from 1990 to 2018

Land, Год журнала: 2024, Номер 13(7), С. 1016 - 1016

Опубликована: Июль 8, 2024

Long-term stability is crucial in cropland for maintaining stable agricultural production and ensuring national food security. However, relatively few studies have been conducted on the long-term of at level. This study assessed China from 1990 to 2018 using a fine-resolution land use dataset. The experimental results indicated that average area unstable amounted 2.08 × 106 km2, 47.31% total. Qinghai–Tibet Plateau exhibited highest proportion 65.9%, followed by northern arid semiarid region, Southern China, Yunnan–Guizhou Plateau. quantity initially declined before increasing, reaching final growth rate 5.09%. Furthermore, this explored relevant driving factors cropland’s both natural human activities based artificial neural networks. relative importance distance vegetation reached value 0.30, indicating it had most significant influence cropland, relief amplitude soil type. phenomenon may be attributed inadequate execution Grain Green Policy requisition–compensation balance policy, along with depletion young middle-aged laborers due urban migration rural areas. Local governments should focus addressing unsustainable exploitation sloped mountainous or hilly regions while preventing developers appropriating fertile compensate less

Язык: Английский

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Driving Forces behind the Reduction in Cropland Area on Hainan Island, China: Implications for Sustainable Agricultural Development

Land, Год журнала: 2024, Номер 13(8), С. 1274 - 1274

Опубликована: Авг. 13, 2024

Food security is a major challenge for China at present and will be in the future. Revealing spatiotemporal changes cropland identifying their driving forces would helpful decision-making to maintain grain supply sustainable development. Hainan Island endowed with rich agricultural resources due its unique climatic conditions facing tremendous pressure protection huge variation natural human activities over past few decades. The purpose of this study assess on predict future under different scenarios. Key findings are as follows: (1) From 2000 2020, area decreased by 956.22 km2, causing center shift southwestward 8.20 km. This reduction mainly transformed into construction land woodland, particularly evident coastal areas. (2) Among anthropogenic factors, increase footprint primary reason decrease cropland. Land use driven population growth, especially economically active densely populated areas, key factors decrease. Natural such topography climate change also significantly impact changes. (3) Future scenarios show significant differences In development scenario, expected continue decreasing 597 while ecological conversion restricted 269.11 km2; however, trend reversed, increasing 448.75 km2. Our provide deep understanding behind and, through scenario analysis, demonstrate potential policy choices. These insights crucial formulating sound management policies protect resources, food security, promote balance.

Язык: Английский

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Cropland quality evaluation and improvement potential in China: integrating suitability, resistance, and contiguity

Environment Development and Sustainability, Год журнала: 2024, Номер unknown

Опубликована: Дек. 10, 2024

Язык: Английский

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