Análisis de variación espacial de la fertilidad del suelo para la delimitación de zonas de manejo homogéneo en agricultura de precisión DOI Creative Commons
Julio Ricardo Galindo Pacheco, Ruy Edeymar Vargas Díaz,

Carlos Martínez-Niño

et al.

Revista Científica Dékamu Agropec, Journal Year: 2024, Volume and Issue: 5(2), P. 74 - 86

Published: Dec. 17, 2024

Este estudio analizó la variabilidad espacial de fertilidad del suelo en una parcela 1440 m² Mosquera, Colombia, para crear zonas manejo homogéneas agricultura precisión. Se recolectaron 480 muestras usando cuadrícula 3x1 m, analizando pH, conductividad eléctrica, fósforo, cationes intercambiables, microelementos y materia orgánica (MOS). El análisis componentes principales (PCA) identificó MOS, el pH eléctrica como indicadores clave zonificación. La interpolación Kriging mapeó estas propiedades, revelando alta variabilidad. modelo exponencial se ajustó mejor a los semivariogramas. clustering difuso, basado umbrales indicadores, dividió dos zonas, con superposición entre las divisiones basadas MOS. Un QUEFTS simuló rendimiento cultivos, mostrando que fertilización optimizada N K, basada zonificación, maximizó rendimientos. demuestra efectividad uso PCA manejo. zonificación MOS mejoró P mientras enfocó diferencias micronutrientes. Los resultados destacan potencial precisión mejorar rendimientos cultivos eficiencia recursos. Investigaciones futuras deberían incorporar propiedades físicas variaciones climáticas un más completo.

The stability of soil aggregates in Sweet Cherry (Prunus avium L.) orchards of different ages and varieties DOI Creative Commons
Muhao Chen,

Shu Feng,

Jun Wang

et al.

Heliyon, Journal Year: 2025, Volume and Issue: 11(3), P. e42189 - e42189

Published: Jan. 22, 2025

Language: Английский

Citations

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The Aggregate Structure and Organic Carbon Mineralization in Forest Soils Along an Elevation Gradient in the Sygera Mountains of the Southeastern Tibetan Plateau DOI Open Access

Hang Guo,

Qiang He, Qiang Meng

et al.

Forests, Journal Year: 2025, Volume and Issue: 16(2), P. 298 - 298

Published: Feb. 8, 2025

The distribution of the soil aggregate structure and its associated organic carbon along elevation gradient remains unclear, but it may be crucial for stabilization pools in mountainous forests. In this study, we first assessed changes aggregate-associated 0–20 cm layers an alpine forest Sygera Mountains (3000–4200 m). We then conducted incubation experiment to explore relationship between aggregates mineralization, using Pearson correlation analysis RDA. results indicated that macroaggregates microaggregates were predominant forms Mountains, contributing significantly (33.57% 38.29%, respectively). As increased, stability mid high elevations (3600–4200 m) was higher than low (3000–3300 Aggregate macroaggregate-associated positively correlated with total carbon, suggesting is essential promoting aggregation soils. With rising temperatures, rate mineralization at different sites Q10 values greater elevations. This implied more sensitive climate warming. significant negative microaggregate-associated suggested contribute pools. Given link strengthened increasing role should emphasized under a warming trend.

Language: Английский

Citations

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Degradation of tree plantations increases soil erosion risk through changes in aggregate stability and vegetation traits DOI
Dong Ge, Xiaodong Gao, Li Zhang

et al.

Forest Ecology and Management, Journal Year: 2025, Volume and Issue: 585, P. 122591 - 122591

Published: March 12, 2025

Language: Английский

Citations

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Parent materials regulate the effects of rainfall intensity and slope gradient on interrill erosion processes in the mountainous canyon regions of Southwest China DOI

Liang Dong,

Genzhu Wang,

Haizhu Liu

et al.

CATENA, Journal Year: 2025, Volume and Issue: 256, P. 109092 - 109092

Published: May 2, 2025

Language: Английский

Citations

0
Environmental variables controlling soil aggregate stability across spatial scales and locations in a karst region of southwestern China DOI Creative Commons
Weichun Zhang, Jiangwen Li, Xin Zhang

et al.

Geoderma, Journal Year: 2025, Volume and Issue: 456, P. 117240 - 117240

Published: March 12, 2025

Language: Английский

Citations

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Water-stable soil aggregation and associated carbon in a no-till Atwood silt loam soil with cover crops and poultry litter DOI
Wei Dai, Gary Feng, Yanbo Huang

et al.

Soil and Tillage Research, Journal Year: 2024, Volume and Issue: 248, P. 106399 - 106399

Published: Dec. 5, 2024

Language: Английский

Citations

1
Responses of Soil Infiltration and Erodibility to Vegetation Succession Stages at Erosion and Deposition Sites in Karst Trough Valleys DOI Open Access

Hailong Shi,

Fengling Gan,

Lisha Jiang

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(12), P. 2167 - 2167

Published: Dec. 9, 2024

The topographies of soil erosion and deposition are critical factors that significantly influence quality, subsequently impacting the erodibility soils in karst regions. However, investigation into effects on across different stages vegetation succession trough valleys is still at a preliminary stage. Therefore, three distinct topographic features (dip slopes, anti-dip valley depressions) were selected (dip/anti-dip slope) sites (valley) to investigate spatial heterogeneity physicochemical properties, infiltration capacity, aggregate stability, valleys. Additionally, five forests considered: Abandoned land stage (ALS), Herb (HS), Herb-Shrub (HES), Shrub (SHS), Forest (FS). relationships among these analyzed identify key driving influencing erodibility. results revealed properties stability site superior those site. FS resulted best whereas HS highest within capacity was greater than sites. ALS had strongest both (0.064) (0.051), with observed slopes during HES (0.142). structural equation model reveals topographies, succession, aggregates, characteristics collectively account for 88% variation under conditions. Specifically, direct indirect influences most exerted by succession. This study provides scientific evidence support management ecological restoration while offering technical assistance regional improvement poverty alleviation.

Language: Английский

Citations

1
Spatial Variability of Soil Aggregate Size Fractions Driven by Precipitation and Nitrogen Fertilizer at the Regional Scale in Southwestern China DOI

Wei-chun Zhang,

Xin Zhang, Wei Wu

et al.

Journal of soil science and plant nutrition, Journal Year: 2024, Volume and Issue: 24(3), P. 6184 - 6195

Published: Aug. 13, 2024

Language: Английский

Citations

1
Spatial and temporal evolution and factors influencing soil aggregate stability in the riparian zone during exposure: A case study of the water-level fluctuation zone of the Three Gorges Reservoir, China DOI
Yuanzhen Ni, Zhenyao Xia, Yueshu Yang

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 957, P. 177408 - 177408

Published: Nov. 13, 2024

Language: Английский

Citations

1
Morphological Characteristics and Development Rate of Gullies in Three Main Agro-Geomorphological Regions of Northeast China DOI Creative Commons
Zhengyu Wang, Mingchang Shi, Mingming Guo

et al.

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(16), P. 2905 - 2905

Published: Aug. 8, 2024

Gully erosion poses a significant global concern due to its role in land degradation and soil erosion, particularly pronounced Northeast China’s diverse agro-geomorphic regions. However, there is lack of comprehensive studies on gully characteristics, development rates, the topographic threshold formation these areas. To address this gap, we selected three different watersheds, named HL (Hailun), ML (Muling), YKS (Yakeshi), with areas 30.88 km2, 31.53 21.98 respectively. Utilizing high-resolution (2.1 m, 2 m) remote sensing imagery (ZY-3, GF-1), analyzed morphological parameters (length, width, area, perimeter, etc.) use changes for all permanent gullies between 2013 2023. Approximately 30% were detailed study upstream drainage area head slopes establish (S = a·A−b). In HL, ML, YKS, average lengths 526.22 208.64 614.20 respectively, corresponding widths 13.28 8.45 9.32 m. The number densities 3.14, 25.18, 0.82/km2, density 1.65, 5.25, 0.50 km km−2, 3%, 5%, 1% has disappeared exhibited highest retreat rate at 17.50 m yr−1, significantly surpassing (12.24 yr−1) (7.11 yr−1). Areal rates (277.79 m2 lowest (105.22 yr−1), intermediate 243.36 yr−1. was no difference expansion (0.37–0.42 among (p > 0.05). Differences dynamics regions influenced by use, slope, factors. a·A−b) varied: emphasized (a 0.052, b 0.52), highlighted resistance 0.12, 0.36), fell within range 0.044, 0.27). This enriched scope database research, providing scientific basis prevention control planning China.

Language: Английский

Citations

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