The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 955, P. 177119 - 177119
Published: Oct. 22, 2024
Language: Английский
Water Research, Journal Year: 2024, Volume and Issue: 260, P. 121902 - 121902
Published: June 7, 2024
Language: Английский
Citations
4
Journal of Hydrology, Journal Year: 2025, Volume and Issue: unknown, P. 132638 - 132638
Published: Jan. 1, 2025
Language: Английский
Citations
0
Environmental Research Ecology, Journal Year: 2025, Volume and Issue: 4(1), P. 015006 - 015006
Published: Jan. 10, 2025
Abstract Beaver ponds and forest harvest are common disturbances in the Canadian boreal that result major changes to catchment hydrology thus also influence mobilization methylation of mercury (Hg). Though both beaver frequently occur same watersheds, possible interactive effects not well understood. To evaluate comparative these two disturbances, this study examined in-stream total methylmercury (MeHg) across 7 stream reaches central forest. Results showed downstream-to-upstream MeHg concentration ratios were more highly correlated presence than harvest. However, concentrations upstream higher streams within harvested watersheds; demonstrated a weaker correlation between pond ratios. Understanding cumulative will allow managers consider how activity could affect downstream areas with high activity.
Language: Английский
Citations
0
Marine Pollution Bulletin, Journal Year: 2025, Volume and Issue: 214, P. 117701 - 117701
Published: Feb. 21, 2025
Language: Английский
Citations
0
Agronomy, Journal Year: 2024, Volume and Issue: 14(3), P. 426 - 426
Published: Feb. 22, 2024
It is crucial to comprehend how fertilization and cultivation management alter the composition of dissolved organic carbon (DOC) microbial communities regulate biogeochemical cycling soil nutrients mitigate adverse impacts on soil–water quality. Based 15 years long-term field trials conducted in purple farmland with a slope 15° southwestern China, following five treatments were examined: CK (no fertilizer was applied), T1 (NPK plus manure downslope cultivation), T2 T3 (1.5-fold NPK T4 contour cultivation). Soil samples obtained from summer maize at two depths (0–10 10–20 cm) rhizospheric soil, changes DOC content, UV–visible (UV–Vis) absorptivity, phospholipid fatty acids (PLFAs) assessed. Our results revealed significant change content fertilization, especially T1, as it 136.0%, 179.4%, 132.2% higher, respectively, than that 0–10 cm soil. Fertilization decreased UV–Vis absorptivity variables (i.e., SUVA254, SUVA260, SUVA400, SUVA465, SUVA665, C:C ratio) raised E4:E6 ratio (fulvic acid humic DOC), regardless depth compared those CK, respectively. significantly increased total PLFA selected groups relative CK. Among treatments, by 50.6%, 59.0%, 46.2%, The community structure (T4) greater (T2). Random forest analysis (RFA) SOC likely primary for regulating PLFAs examined Partial least squares path modeling (PLS-PM) further indicated among compositions had effects These observations suggested are effective approaches altering sloping farmland.
Language: Английский
Citations
2
CATENA, Journal Year: 2024, Volume and Issue: 246, P. 108423 - 108423
Published: Sept. 27, 2024
Language: Английский
Citations
2
Land Degradation and Development, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 19, 2024
ABSTRACT Dissolved organic carbon (DOC), an fraction with high activeness and mobility, migrated by runoff is a key part in cycle. A rational straw mulching rate can be regulated to obtain maximum benefits while controlling sediment yield on sloping lands. However, little remains known about the optimal rates required for effectively reducing loss of DOC runoff. Therefore, overcome existing limitations, this study investigated effects modified maize during runoff, utilizing indoor rainfall simulation. Five rates, including 0, 0.2, 0.4, 0.6, 0.8 kg m −2 [control (CK) treatments (T1, T2, T3, T4), respectively], were tested combination three slope gradients (10°, 15°, 20°) evaluate how influences yield, runoff‐related under heavy intensity 90 mm h −1 . Our results showed that various did not significantly differ rates; however, reduced concentration yield. Moreover, reduction increased increase rate. Compared CK, T1 resulted 63% at 20°. Additionally, T2 caused 8% 7.2% both 10° 15° slopes. Conversely, T3 T4 54.1%–80.8% 51.1%–65.2%, respectively, across all gradients. These suggested 0.2–0.4 may potentially hold significant importance optimizing use sustainable management practices agricultural
Language: Английский
Citations
1
Jurnal Penelitian Pendidikan IPA, Journal Year: 2023, Volume and Issue: 9(9), P. 6828 - 6833
Published: Sept. 25, 2023
The initial study that we carried out regarding the Kwanyar sub-district area, Bangkalan, East Java, shows need to optimize land productivity and analyze potential for farming build welfare of people subdistrict. Preliminary spatial data analysis related topography as a result Digital Elevation Model (DEM) processing that: is dominated by flat slopes (0-8°) compared northern region sub-district, while runoff water low flow coefficient (0- 0.25) which means most area has absorption capacity high stagnant water. In addition, Regosol soil type. coarse texture organic matter, makes it unable properly hold minerals plants, so tends be infertile. then became basis this research.
Language: Английский
Citations
2
Water Resources Research, Journal Year: 2024, Volume and Issue: 60(12)
Published: Dec. 1, 2024
Abstract In‐situ dissolved organic matter (DOM) monitoring frequencies have often been chosen for convenience or based on perceived wisdom, without fully assessing their impact representation of DOM dynamics. To address this gap, we collected 5‐min fluorescence data in an urban headwater and resampled it at coarser intervals to investigate the detectability dynamics during storms. Expecting hydrometeorological conditions modify frequency, categorized 85 storm events into groups: Group A (low intensity, short duration), B (high C long duration). Surprisingly, our analysis indicated that frequency has minimal influence commonly used biogeochemical indexes (e.g., maximum, hysteresis flushing index), which are employed characterize solute behavior, regardless type. facilitate a direct comparison between frequencies, back‐interpolated calculated mean squared errors by comparing them with original high‐resolution data. Our findings colder periods predominately Type storms, (>30 min) can capture Conversely, warmer when storms dominate, finer (≤15 is necessary key chemograph processes first flush dilution). Generally, suggest 15‐min as optimal similar systems, advocate adaptive approach seasonal variations improve efficiency, especially power, transfer, storage constraints.
Language: Английский
Citations
0
Processes, Journal Year: 2023, Volume and Issue: 11(6), P. 1641 - 1641
Published: May 27, 2023
A soil depleted of its organic carbon content is typically destabilized, i.e., capacity to maintain microstructure intact under various stress conditions weakens, and consequently, landslides mudflows can be triggered propagated more easily. In a previous work, we showed with rheological analysis that the removal sole water-soluble “destabilized” slurry very similarly what occurs vast majority carbon. principle, dissolved by rainfall, during which water infiltrate soil, eventually leaving it either percolation or evaporation. These two processes are mimicked here different wetting procedures. The stability treated (wetted) soils studied granulometric experiments. former run on concentrated suspensions, while latter diluted ones. Despite this, results agreed well, indicating procedures induce same destabilization behaves as one whole Our concluded destabilized procedure, rainfall event, will prone trigger landslide propagate swiftly stop difficulties.
Language: Английский
Citations
1