Mapping Key Soil Properties of Cropland in a Mountainous Region of Southwestern China

Agronomy, Journal Year: 2024, Volume and Issue: 14(7), P. 1417 - 1417

Published: June 29, 2024

Soil organic carbon (SOC), total nitrogen (TN), phosphorus (TP), and potassium (TK) are important indicators for evaluating soil fertility. Exploring the content spatial distribution of these is great significance optimizing cropland management measures developing sustainable agriculture. Yunnan Province one most agricultural regions in southwestern China, characterized by large variations topography an uneven In this study, data 8571 topsoil (0–20 cm) samples selected from a portion related were used to carry out electronic mapping sand content, clay silt SOC, TN, TP, TK C:N ratio at 1 km resolution using Random Forest (RF) model. The results indicated that average measured contents TK, 18.78 ± 0.09 g/kg, 1.78 0.01 0.98 13.89 0.08 10.56 0.02, respectively. analysis showed higher SOC was mainly distributed northern eastern Yunnan, pattern TN TP similar SOC. While Province. There significant positive correlation between with coefficients 0.889 0.463, however, there negative −0.060. It also elevation, temperature, precipitation, factors affecting content. present study provided understanding nutrients characteristics their factors, which helpful optimize practices develop agriculture according

Language: Английский

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Absorção foliar de nutrientes pela videira em Argissolos do submédio do Vale São Francisco, semiárido do nordeste do Brasil

Revista Brasileira de Geografia Física, Journal Year: 2025, Volume and Issue: 18(1), P. 132 - 146

Published: Jan. 1, 2025

The growth of vines in a semi-arid tropical environment climate is heavily influenced by soil type and its chemical physical attributes. This work investigated the relationship between properties leaf nutrient absorption São Francisco Valley vineyards, northeastern Brazil, to contribute wine production. Five types soils were selected, under crops Tempranillo Syrah grape varieties conducted an espalier system. classified as Argissolo Vermelho-Amarelo (Ultisol) (PVA) with clay texture four Argissolos Amarelos (Ultisols), (PA1, PA2, PA3, PA4) medium/clayey, sandy/medium, respectively. Morphological characteristics determined grapevine field, while attributes nutritional contents analyzed laboratory. No differences found leaves during maturation. subsurface PVA had suitable distribution nutrients, pH, base sum, content, which favorable for development vines. Although PA2 has high phosphorus (436 mg kg-1) total organic carbon (25 g shallow horizons (0-10 cm), higher bulk density (~2.0 kg dm-3) lower porosity (~30%) diagnostic horizons, occured thereby jeoperdizing infiltration water into quality grapes, consequently. In general, was most promising obtaining fine-quality grapes

Language: Английский

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Soil Fertility Dynamics Across Varied Land Use Types and Cropping Systems on Mount Kilimanjaro, Tanzania: Implications for Sustainable Soil Management

Applied and Environmental Soil Science, Journal Year: 2025, Volume and Issue: 2025(1)

Published: Jan. 1, 2025

Agricultural lands on the southern slopes of Mount Kilimanjaro comprise diverse and complex, smallholder cropping systems. This study explores variation in soil fertility across different altitudes their influence systems to recommend appropriate management practices. The site spanned three altitudinal zones: upland (1438–1698 m), midland (901–1337 m) lowland (680–834 m). Soil samples from 50 plots along 25‐km transect were analysed for chemical properties. Complementary data collected understand through six walks: two each land use. Results indicate that organic carbon (SOC) total N are highest decrease with altitude, while exchangeable bases (Ca, Mg, K Na) increase as altitude decreases. pH is acidic at higher alkaline lower altitudes. Available P decreases whereas available S shows no significant relationship elevation. Overall, status was better order > lowland, indicating a decreasing suitability trend supporting crop production. Elevation significantly influenced distribution patterns nutrient levels ( p < 0.05). Upland zones employ farmyard manure application, residue retention cultivation under shade preserve moisture enhance biomass accumulation. In contrast, relies heavily inorganic fertilisers, depletion evident due transfer erosion critical all zones, necessitating control measures. Recommendations include amendments by liming address deficiency reducing salinity, use nitrogenous incorporating leguminous plants. Cultivation crops adapted conditions also advocated. These findings aim improve productivity, ensuring sustainable agricultural practices region.

Language: Английский

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Effect of elevation on soil quality under bamboo (Bambusa teres Buch.-Ham. ex Munro) stands outside forest areas in Eastern Nepal

Advances in Bamboo Science, Journal Year: 2025, Volume and Issue: unknown, P. 100149 - 100149

Published: March 1, 2025

Language: Английский

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Soil properties under different land uses and slope gradients: Implications for sustainable land management in the Tach Karnuary watershed, Northwestern Ethiopia

Frontiers in Environmental Science, Journal Year: 2025, Volume and Issue: 13

Published: May 6, 2025

Introduction: Soil degradation resulting from land use changes and topographic variations poses a significant threat to agricultural productivity environmental sustainability in the Northwestern Ethiopian Highlands. Assessing influence of slope gradient on soil physicochemical properties is crucial for developing sustainable management strategies. Methods: This study investigated effects four land-use types (cultivated land, grazing forest eucalyptus plantations) two gradients (upper lower slopes) selected Tach Karnuary watershed Ethiopia. Twenty-four composite samples were collected 0 20 cm depth triplicate across all categories. In addition, undisturbed obtained using core sampler assess bulk density. Standard laboratory procedures employed analyze physical (bulk density, porosity, texture) chemical (pH, organic matter, total nitrogen, available phosphorus, cation exchange capacity, exchangeable cations). Data statistically analyzed analysis variance (ANOVA). Results: The ANOVA results revealed that type significantly (p &lt; 0.05) affected most properties, including texture, pH, cations. Likewise, had highly 0.01) effect Discussion: Soils upper slopes exhibited fertility more degraded conditions than those slopes, primarily because erosion nutrient loss. also observed different types. These findings underscore urgent need use-specific interventions mitigate degradation, enhance fertility, promote erosion-prone landscapes

Language: Английский

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Relationship of selected properties of Cambisols to altitude and forest ecosystems of four vegetation grades

Heliyon, Journal Year: 2024, Volume and Issue: 10(10), P. e31153 - e31153

Published: May 1, 2024

Currently, little is known about the spatial variability of significant soil properties and their relationships to forest ecosystems different vegetation grades. This work evaluates upper layer Cambisol taxa relationship altitude 2nd 5th grades selected in Western Carpathians using PCA regression analysis. The content clay, total carbon nitrogen, humus, energy, ash soils varied between 5.43 11.53 %, 21-65 mg g

Language: Английский

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Changes in Soil Hydrological Retention Properties and Controlling Factors on Shaded and Sunny Slopes in Semi-Arid Alpine Woodlands

Forests, Journal Year: 2024, Volume and Issue: 15(7), P. 1136 - 1136

Published: June 29, 2024

Slope orientation significantly influences soil’s physicochemical properties and the soil hydrological environment. However, regulatory mechanisms effects, particularly in semi-arid highlands, remain poorly understood. This study investigated on shaded sunny slopes. Results indicated that 0–20 cm layer, water-holding capacity was higher slopes, while water retention 10–20 layer suggests vegetation slopes experiences less erosion due to topsoil retention. Additionally, slope altered properties: electrical conductivity (EC) of Nutrient elements such as Ca, Cu, Zn were also relatively whereas organic matter lower compared Overall, supply primarily controlled by EC, followed capillary porosity nutrient like Mn, Fe. Therefore, has a significant effect properties, with stronger These findings offer valuable insights for restoration highland ecosystems.

Language: Английский

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Patterns of forest community diversity, regeneration potential and carbon storages along an altitudinal gradient in Eastern Himalaya, India

Environmental and Sustainability Indicators, Journal Year: 2024, Volume and Issue: 22, P. 100399 - 100399

Published: April 24, 2024

This study showed changing patterns in the plant species composition, diversity, and carbon storage potential of different forests along altitudinal gradients (i.e. 100 – 1900 m) Eastern Himalayan India. Different tree, shrub herb were sampled ranging from tropical to temperate through Nested Plot design. In each forest, vegetation sampling was made by establishing a permanent plot 250 m × as per ISRO-GBP/NCP-VCP protocol. Individuals trees ≥10 cm girth at breast height (GBH), shrubs herbs recorded 4, 8 16 subplots 31.62 m, 5 1 respectively. Community attributes such richness, density, basal area, diversity indices biomass storages computed for site. A total forest communities (2 subtropical one forest) identified. The woody highest followed forest. Altitude played an important role Mountains establishment distribution community. Forest community composition changes with elevation, instance, dominant like Dipterocarpus retusus–Phoebe goalparensis–Schima wallichii (D-P-S), Gmelina arborea–Schima wallichii-Duabanga grandiflora (G-S-D), Schima wallichii–Duabanga grandiflora–Alstonia scholaris (S-D-A), Alstonia scholaris–Terminalia myriocarpa–Bischofia javanica (A-T-B) Acer thomsonii–Rhodendron arboreum–Quercus lamellose (A-R-Q) present elevational ranges 100–300 300–700 700–1100 1100–1500 1500–1900 that about 41–57% tree exhibited good regeneration 23–30% fair, 6–16% poor, 6–21% did not show gradient. (Mg C ha−1) varied 84.74 163.56 tropical, 103.12 156.41 133.05 conclusion, pattern altitude because altered biophysical characteristics. However, despite variations factors disturbance altitudes significantly contributed overall accumulation carbon. Hence, traditional management practices carried out local also play crucial shaping structure, dynamics ecosystems. Understanding impacts these is essential promoting sustainable conserving preserving stocks mitigating climate change future. emphasizes importance long-term monitoring promote biodiversity conservation formulate strategies support policies which ensure continuous provision ecosystem services region.

Language: Английский

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Elevation-dependent dynamics of soil properties in a hilly watershed: a landform-based approach

Environmental Monitoring and Assessment, Journal Year: 2024, Volume and Issue: 196(11)

Published: Oct. 2, 2024

Language: Английский

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Characterization of soil health and nutrient content status across the North-East Maasai Landscape, Arusha Tanzania

Environmental Challenges, Journal Year: 2024, Volume and Issue: 14, P. 100847 - 100847

Published: Jan. 1, 2024

Soil fertility management has been a great challenge to smallholder farmers in the Northern Tanzania, especially Maasai landscape. Therefore understanding nutrient status become important forecast productivity, promote sustainability, and propose an appropriate technique for crop productivity sustainability. The study examines soil of Systematic approach known as Land Degradation Surveillance Framework (LDSF) were used identify sampling points. A total 604 samples from two depth (0 – 30 50 cm) collected physiochemical properties analysis using Mid-infrared (MIR) spectroscopy. chosen level determining statistical significance, was set at P = 0.05. Results showed significant differences (P < 0.01) particle size distribution, SOC, EC, CEC, TN, pH, N, P, K, Ca, S, Mg, Mn Zn across landscape zones. It observed that parameters such pH (6.62 7.44), CEC (27.59 32.82 meq/100g), EC (90.12 - 121.93 µS/cm) adequate acceptable range while SOC (0.89 1.89%) be low amount. Other nutrients N (0.09 0.14%), (9.46 14.87 mg/kg), K (175.91 293.5 mg/kg) inadequate amounts except S (12.9 15.43 which optimum, Ca (3117.5 4155.31 ranged between Mg (556.95 603.26 excessive amounts. However, (114.13 mg/kg 128.95 excess. This found that, there is significance difference on Major constraints some soils. recommends interventions address issue northeast should consider altitude due variations health content.

Language: Английский

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