Elsevier eBooks, Год журнала: 2024, Номер unknown, С. 315 - 331
Опубликована: Окт. 25, 2024
Язык: Английский
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
Процитировано
0
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
Процитировано
0
International Journal of Biological Macromolecules, Год журнала: 2025, Номер 311, С. 144018 - 144018
Опубликована: Май 7, 2025
Язык: Английский
Процитировано
0
Deleted Journal, Год журнала: 2025, Номер unknown
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
0
Agricultural and Forest Meteorology, Год журнала: 2025, Номер 371, С. 110622 - 110622
Опубликована: Май 14, 2025
Язык: Английский
Процитировано
0
Applied Geography, Год журнала: 2025, Номер 180, С. 103663 - 103663
Опубликована: Май 16, 2025
Язык: Английский
Процитировано
0
Journal of Cleaner Production, Год журнала: 2024, Номер 449, С. 141513 - 141513
Опубликована: Март 4, 2024
Язык: Английский
Процитировано
2
International Journal of Remote Sensing, Год журнала: 2024, Номер 45(11), С. 3664 - 3688
Опубликована: Май 21, 2024
Land-cover classification based on remote sensing technology has been adopted for decision-making concerning agricultural development, urban planning, and ecosystem protection in arid oasis zones. The semantic segmentation method deep learning, as a new paradigm, can effectively overcome the limitations of traditional pixel-based object-based methods obtain good results from high spatial resolution (HSR) images. However, how to extract exact category boundary realize precision mapping is still problem. This paper proposes novel high-resolution feature pyramid attention network (HRFPANet) land-cover classification. It integrates advantages multi-scale extraction, mechanism, fusion alleviates inconsistency, roughness, fragmentation associated with previous models. experimental show that mIoU score HRFPANet 79.5%, which 11.5% 2.6% higher than PSPNet UPerNet, respectively. proves proposed model be used qualified Our source code available at https://github.com/HPU-CPD/HRFPANet.git.
Язык: Английский
Процитировано
2
Agronomy, Год журнала: 2024, Номер 14(6), С. 1220 - 1220
Опубликована: Июнь 5, 2024
Abundant light and heat in the Hexi Oasis Irrigation Area China provide superior natural conditions for agricultural development. To study maize–soybean planting system of intercropping determine group yield economic benefits Area, eight treatments were set up 2022–2023: with a bandwidth 1.8 m row ratio 2:3 (M1S3), 2:4 (M1S4), 2.0 (M2S3), (M2S4), 2.2 (M3S3), (M3S4), monocropping maize (M), soybean (S). We analyzed effects changes bandwidth–row ratios on photosynthetic characteristics, yield, interspecific relationships these during two crop reproductive periods. Our results showed following: (1) Under system, capacity was highest when 2∶3 m. The net rate (Pn) increased by 1.72% to 48.90%, transpiration (Tr) 5.53% 118.10%, stomatal conductance (Gs) 2.82% 86.49% compared other systems. Increasing from improved characteristics soybean, increasing Pn, Tr, Gs 3.44% 74.21%, 3.92% 53.69%, 2.41% 55.22%, respectively. (2) under significantly higher than that intercropping. In treatments, average crops M3S3 16,519.4 kg ha−1, an increase 6.48% M3S4 indicating reduction one same increases yield; benefit over years 35,171.73 CNY which 13.3 80% monocropping, leads better farmers monocropping. (3) two-year experiment, land equivalent (LER) model, averaging 1.25 years, showing productivity (4) When 1.8, 2.0, or m, LER decreased 8.3, 5.9, 5.6% additional soybeans, relative crowding coefficient soybeans respective bandwidths 4.59, 4.72, 0.75%, competition (CRM) 22.94, 16.97, 12.74%, (CRS) 20.47, 17.61, 16.78%, competitive power greater rows would weaken advantage resulting reduction. 2:4, 3.31 0.86%, aggressiveness (AM) 7.55 12.50%, CRM 18.04 24.84%, CRS 17.32 22.77%, respectively, indicated different systems could improve thereby improving benefits. (5) AHP method, entropy weight TOPSIS analysis ranked first, comprehensive evaluation (0.6017). conclusion, can coordinate interspecies relationships, benefit, be used as suitable oasis irrigation area.
Язык: Английский
Процитировано
2
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
Процитировано
2