Modelling Agroforestry’s Contributions to People—A Review of Available Models

Agronomy, Journal Year: 2021, Volume and Issue: 11(11), P. 2106 - 2106

Published: Oct. 20, 2021

Climate change, increasing environmental pollution, continuous loss of biodiversity, and a growing human population with food demand, threaten the functioning agro-ecosystems their contribution to people society. Agroforestry systems promise number benefits enhance nature’s contributions people. There are wide range agroforestry implemented representing different levels establishment across globe. This long time periods for these make empirical assessments impacts on ecosystem functions difficult. In this study we investigate how simulation models can help assess predict role in contributions. The review existing simulate reveals that most mainly biomass production yield. Regulating services mostly considered as means assessment yield only. Generic agroecosystem extensions provide broader scope, but interaction between trees crops is often addressed simplistic way. application particularly hindered by issues related code structure, licences or availability. Therefore, call community effort connect effect towards an open-source, multi-effect modelling framework.

Language: Английский

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Depositional environment of shallow-marine arenites in the Northern Apennines (Italy) affects aquifer performance: an interpretive key to groundwater management in a climate change scenario

Journal of Hydrology Regional Studies, Journal Year: 2025, Volume and Issue: 57, P. 102183 - 102183

Published: Jan. 10, 2025

Language: Английский

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Contrasting the Contributions of Climate Change and Greening to Hydrological Processes in Humid Karst and Non-Karst Areas

Water, Journal Year: 2025, Volume and Issue: 17(9), P. 1258 - 1258

Published: April 23, 2025

A quantitative assessment of the responses hydrological processes to environmental change is vital for sustainable utilization groundwater and development under dual influences climate global greening. However, few studies have investigated differences in hydrologic between karst non-karst regions. Thus, we analyzed spatiotemporal changes potential recharge (PGR), as a proportion precipitation (PGR/P), actual evapotranspiration (AET) regions 1982–2020 using V2karst model. The analysis revealed following results: (1) model efficiently monitored variations AET depth (GWD), which indicated its suitability use areas. (2) PGR, PGR/P, increased at rates 4.9 mm/y, 0.0011, 1.4 mm/y areas, 3.8 0.00053, 1.6 respectively, with increasing trend being significant (3) (P) were significantly correlated PGR while minimum temperature (TMN) was strongly related AET. Normalized Difference Vegetation Index (NDVI) moderately affected humid catchments. Climate primary factor processes, whereas vegetation restoration has relatively minor impact. results this study are beneficial toward adoption strategic programs ecological measures diverse geological setting.

Language: Английский

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Response of water fluxes and biomass production to climate change in permanent grassland soil ecosystems

Hydrology and earth system sciences, Journal Year: 2021, Volume and Issue: 25(12), P. 6087 - 6106

Published: Dec. 2, 2021

Abstract. Effects of climate change on the ecosystem productivity and water fluxes have been studied in various types experiments. However, it is still largely unknown whether how experimental approach itself affects results such studies. We employed two contrasting approaches, using high-precision weighable monolithic lysimeters, over a period 4 years to identify compare responses aboveground biomass permanent grassland. The first, manipulative, based controlled increases atmospheric CO2 concentration surface temperature. second, observational, uses data from space-for-time substitution along gradient climatic conditions. Budyko framework was used if soil energy limited or limited. Elevated temperature reduced amount non-rainfall water, particularly during growing season both approaches. In energy-limited grassland ecosystems, elevated increased actual evapotranspiration decreased biomass. As consequence, led decreasing seepage rates systems. Under water-limited conditions dry periods, aggravated stress and, thus, resulted evapotranspiration. already small drier soils remained almost unaffected under these compared wetter manipulative experiment therefore, clear increase seasonality seepage. expected, efficiency indicators ecosystems were negatively correlated with an aridity, while trend unclear for ecosystems. production mainly depend ecosystems' status respect limitation. To thoroughly understand response be able tipping points, experiments need embrace sufficiently extreme boundary explore individual multiple drivers, as temperature, concentration, precipitation, including water. this regard, observational complement one another should combined investigation effects

Language: Английский

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Review on status of groundwater database and application prospect in deep-time digital earth plan

Geoscience Frontiers, Journal Year: 2022, Volume and Issue: 13(4), P. 101383 - 101383

Published: March 28, 2022

Groundwater is an important water resource. The total amount of active groundwater in a hydrological cycle about 3.5 times that the surface water. information deep records material exchange and dynamics earth's evolution, which aspect Deep-Time Digital Earth (DDE) plan. In recent years, scientists have discussed distribution transboundary aquifers environmental significance resources through databases established by international organizations, such as Global Information System chronicles consortium, national institutes, geological surveys. application database DDE plan, however, has been limited management, interactivity, monitoring method data. ability to further integrate data are private scattered across research institutions individuals, while establishing open, unified, shared platform, essential enhance our understanding groundwater, ranging from shallow water, goal this study, we introduced current situation operations domestic provided frontier with big Considering related objectives plan limitations existing databases, proposed improvement new prospects for applying earth.

Language: Английский

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Multi-site, multi-crop measurements in the soil–vegetation–atmosphere continuum: a comprehensive dataset from two climatically contrasting regions in southwestern Germany for the period 2009–2018

Earth system science data, Journal Year: 2022, Volume and Issue: 14(3), P. 1153 - 1181

Published: March 11, 2022

Abstract. We present a comprehensive, high-quality dataset characterizing soil–vegetation and land surface processes from continuous measurements conducted in two climatically contrasting study regions southwestern Germany: the warmer drier Kraichgau region with mean temperature of 9.7 ∘C annual precipitation 890 mm cooler wetter Swabian Alb 7.5 1042 mm. In each region, were over time period nine cropping seasons 2009 to 2018. The backbone investigation was formed by six eddy-covariance (EC) stations which measured fluxes water, energy carbon dioxide between atmosphere at half-hourly resolution. This resulted containing total 54 site years observations multitude crops, as well considerable variation local growing-season climates. presented multi-site, multi-year is composed crop-related data on phenological development stages, canopy height, leaf area index, vegetative generative biomass, their respective nitrogen content. Time series soil water content monitored 30 min resolution various points profile, including ground heat fluxes. Moreover, more than 1200 samples taken changes contents. available https://doi.org/10.20387/bonares-a0qc-46jc (Weber et al., 2021). One field still fully set up observatories for state variables intensively managed agricultural fields.

Language: Английский

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Effect of Long-Term Different Land Uses on Improving Stable Humic Compounds in Arenosol

Agriculture, Journal Year: 2024, Volume and Issue: 14(2), P. 250 - 250

Published: Feb. 3, 2024

There has not been enough research conducted on the effect of land use composition humus in Arenosols. This long-term study (1995–2022) aimed to determine differences formation humic compounds natural and agricultural ecosystems Soil samples were collected from six plots at two soil depths (0–15 15–25 cm), with four replicates. Conclusions reached based results accumulation substances (HSs) their qualitative fractional composition, C/N ratio, humification degree (HD), optical properties substances. Afforestation, after 27 years, significantly increased (+6.7 g kg−1) organic carbon (SOC) influenced HS: HA + FA 79.3% SOC. Grassland cultivation showed faster (+3.8 SOC sequestration, a higher HA/FA an HD. Arenosols may be used crop rotation approximately 40% leguminous plants maintain stable balance. Additionally, effects mineral fertilisers processes quality +2.59 kg−1 SOC, +1.27 humin rotation, +3.26 2.82 grass field established. For larger amount better quality, it is recommended that Arenosol used, as suitable for perennial cut grasslands, pine afforestation.

Language: Английский

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Spatial and Temporal Variability of Soil Moisture and Its Driving Factors in the Northern Agricultural Regions of China

Water, Journal Year: 2024, Volume and Issue: 16(4), P. 556 - 556

Published: Feb. 12, 2024

Soil moisture, as an important variable affecting water–heat exchange between land and atmosphere, is feedback to climate change. moisture of great concern in Northern China, where arable extensive, but water resources are distributed unevenly extremely sensitive Using measured soil data collected by the China Meteorological Administration from 164 stations during 1980–2021, we explored drivers variation analyzing its spatiotemporal variability using linear regression, partial correlation analysis, geostatistical methods. The results indicated that (1) increased northwest southeast with lowest IM; (2) overall trend most regions decreased, especially arid northeast China. However, some began increase gradually recent years, such northwestern Xinjiang central-eastern part (3) whole region was negatively correlated temperature sunshine duration positively precipitation relative humidity. study can provide valuable guidance for timely agricultural irrigation adjustment cropping structures, thereby ensuring production food security.

Language: Английский

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Exploring the Depths: A Brief Review of Understanding the Impact of Climate Change on Groundwater Resources

Environmental earth sciences, Journal Year: 2025, Volume and Issue: unknown, P. 193 - 203

Published: Jan. 1, 2025

Language: Английский

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Post‐drought increase in regional‐scale groundwater nitrate in southwest Germany

Hydrological Processes, Journal Year: 2021, Volume and Issue: 35(8)

Published: July 12, 2021

Abstract Elevated nitrate concentrations in groundwater are a common challenge for water management. One important factor this context is higher frequencies and intensities of wet‐dry cycles that may cause increased due to flushes after drought termination. Yet systematic studies on regional‐scale impacts droughts missing so far. Here we analyzed time series 44 shallow wells 41 springs all across the German Federal State Baden‐Wuerttemberg from 2000 2018 characterize patterns post‐drought increase groundwater. In general, half exceptional concentrations, which exceeded 80th percentile long‐term measurements, could be related research timeframe. The 2003 event stood out terms severity concentration increases our data. great majority (91%) monitoring sites showed at least one exceptionally high 4 years following event. Springs were mainly located forests steep low mountain ranges cropland flat river valleys. Therefore, delay times between intensity as well magnitudes diverse among springs. We derived two distinct response patterns: (i) immediately events (more fractured rock aquifers) (ii) delayed porous aquifers). generally quicker (median 101 days) but weaker +1.3 mg/L) than (185 days, +3.4 mg/L). Only few exhibited no mean‐nitrate reservoirs extraordinarily 2006. Overall, demonstrate omnipresent, while different landscapes hydrogeological characteristics create regional pattern. As severe become more frequent changing climate, intensify problems regarding quality supply.

Language: Английский

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