Cover crop impacts on soil physical properties: A review

Soil Science Society of America Journal, Journal Year: 2020, Volume and Issue: 84(5), P. 1527 - 1576

Published: July 24, 2020

Abstract Cover crop (CC) impacts on soil ecosystem services including erosion control, C sequestration, productivity, and others have been reviewed. However, CC physical properties, which affect the soil's ability to perform a variety of services, not synthesized. We reviewed 98 peer‐reviewed publications up 10 June 2020 CCs properties. Our review indicates that, in most studies, reduce penetration resistance or compaction by 0–29% (average, 5%). They improve wet aggregate stability 0–95% 16%) cumulative infiltration 0–190% 43%) but negligible bulk density, dry stability, saturated hydraulic conductivity ( K sat ), unsaturated unsat volumetric water content at −10 −33 kPa matric potential (field capacity), plant available water. Soils under can be cooler daytime warmer nighttime, winter rest year. Volumetric heat capacity increases thermal diffusivity decreases, indicating that could moderate transport rate. Soil texture, tillage system, CC‐derived concentration, duration For example, positive from increase as management combining with no‐till more than tilled soils. Long‐term data pore‐size distribution are scant. In general, magnitude improvement is highly site‐ specific.

Language: Английский

---

Advanced biofuels to decarbonise European transport by 2030: Markets, challenges, and policies that impact their successful market uptake

Energy Strategy Reviews, Journal Year: 2021, Volume and Issue: 34, P. 100633 - 100633

Published: March 1, 2021

Advanced biofuels are among the available options to decarbonise transport in short medium term especially for aviation, marine and heavy-duty vehicles that lack immediate alternatives. Their production market uptake, however, is still very low due several challenges arising across their value chain. So far policy has established targets monitoring frameworks carbon fuels improved engine performance but not yet been sufficient facilitate effective uptake. roll-out must be if 2030 met. Analysis this paper reiterates future deployment of these fuels, shares can lead desired decarbonisation levels, depends largely on integration tailored interventions overcome improve upstream downstream performance. The work presented aims i) inform relevant restrict flexible, reliable cost-efficient uptake sustainable advanced transport, ii) highlight that, have strong potential current policy, Green Deal Sustainable Development Goals (SDGs).

Language: Английский

---

Does occasional tillage undo the ecosystem services gained with no-till? A review

Soil and Tillage Research, Journal Year: 2020, Volume and Issue: 198, P. 104534 - 104534

Published: Jan. 13, 2020

Language: Английский

---

Carbon myopia: The urgent need for integrated social, economic and environmental action in the livestock sector

Global Change Biology, Journal Year: 2021, Volume and Issue: 27(22), P. 5726 - 5761

Published: July 27, 2021

Abstract Livestock have long been integral to food production systems, often not by choice but need. While our knowledge of livestock greenhouse gas (GHG) emissions mitigation has evolved, the prevailing focus been—somewhat myopically—on technology applications associated with mitigation. Here, we (1) examine global distribution GHG emissions, (2) explore social, economic and environmental co‐benefits trade‐offs interventions (3) critique approaches for quantifying emissions. This review uncovered many insights. First, while from ruminant are greatest in low‐ middle‐income countries (LMIC; globally, 66% produced Latin America Caribbean, East southeast Asia south Asia), majority strategies designed developed countries. serious concern is heightened fact that 80% growth meat over next decade will occur LMIC. Second, few studies concurrently assess aspects Of 54 reviewed, only 16 had triple‐bottom line benefit medium–high potential. Third, efforts stimulate adoption allowing both reduction (ER) carbon sequestration (CS) would achieve net mitigation, CS measures greater potential co‐benefits. The scientific community must shift attention away myopic lens on carbon, towards more holistic, systems‐based, multi‐metric carefully consider raison d'être systems. Consequential life cycle assessments systems‐aligned ‘socio‐economic planetary boundaries’ offer useful starting points may uncover leverage cross‐scale emergent properties. derivation harmonized, globally reconciled sustainability metrics requires iterative dialogue between stakeholders at all levels. Greater emphasis simultaneous characterization multiple dimensions help avoid situations where progress made one area causes maladaptive outcomes other areas.

Language: Английский

---

Soil organic carbon fractions in response to soil, environmental and agronomic factors under cover cropping systems: A global meta-analysis

Agriculture Ecosystems & Environment, Journal Year: 2023, Volume and Issue: 355, P. 108591 - 108591

Published: May 23, 2023

Language: Английский

---

No tillage increases soil organic carbon storage and decreases carbon dioxide emission in the crop residue-returned farming system

Journal of Environmental Management, Journal Year: 2020, Volume and Issue: 261, P. 110261 - 110261

Published: March 2, 2020

Language: Английский

---

Cover Crop Biomass Production in Temperate Agroecozones

Agronomy Journal, Journal Year: 2019, Volume and Issue: 111(4), P. 1535 - 1551

Published: April 25, 2019

Core Ideas Cover crop (CC) biomass production across temperate regions averaged 3.37 ± 2.96 Mg ha −1 . Ten high‐biomass producing CCs in ecoregions were this order: sorghum > sunn hemp millet rye mixes crimson clover barley = hairy vetch annual ryegrass oat. was greater humid than semiarid and areas with relatively high mean temperatures. by cropping system vegetables other systems maize small grains. generally increased drill‐planting seeding rate growing season. dictates agricultural environmental services that deliver, but finding a review on topic is difficult. We synthesized published data CC for 20 common species discussed factors affecting production. Review of 389 papers indicated (mean SD). the top five biomass‐producing was: ( Sorghum sp.) (5.99 ) Crotalaria juncea L.) (5.77 Pennisetum glaucum (4.95 Secale cereale (4.93 two‐species mix (4.18 ). In (>750 mm precipitation), ranged from 1.67 to 6.30 depending species. <750 precipitation, 0.87 6.03 order system: [soybean Glycine max L.), cotton Gossypium hirsutum others] Zea mays Rye among most highest systems. Drill‐planting maximizing season, such as early planting or late termination, can increase Irrigation at establishment legumes regions, all groups regions. Overall, produce significant amount biomass, be highly dependent climate, species, system, management.

Language: Английский

---

Characterising the biophysical, economic and social impacts of soil carbon sequestration as a greenhouse gas removal technology

Global Change Biology, Journal Year: 2019, Volume and Issue: 26(3), P. 1085 - 1108

Published: Sept. 18, 2019

Abstract To limit warming to well below 2°C, most scenario projections rely on greenhouse gas removal technologies (GGRTs); one such GGRT uses soil carbon sequestration (SCS) in agricultural land. In addition their role mitigating climate change, SCS practices play a delivering agroecosystem resilience, change adaptability and food security. Environmental heterogeneity differences challenge the practical implementation of SCS, our analysis addresses associated knowledge gap. Previous assessments have focused global potentials, but there is need among policymakers operationalise SCS. Here, we assess range already proposed deliver distil these into subset specific measures. We provide multidisciplinary summary barriers potential incentives towards First, identify with for both positive impact at farm level an uptake rate compatible impact. These focus on: (a) optimising crop primary productivity (e.g. nutrient optimisation, pH management, irrigation); (b) reducing disturbance managing physical properties improved rotations, minimum till); (c) minimising deliberate C or lateral transport via erosion processes support measures, bare fallow reduction); (d) produced outside system organic manure amendments, biochar addition); (e) provision additional inputs within cropping agroforestry, cover cropping). then consider economic non‐cost land managers implementing along externalised impacts implementation. This offers framework reference point holistic assessment Finally, summarise discuss ability extant scientific approaches quantify technical externalities systems.

Language: Английский

---

Can conservation agriculture increase soil carbon sequestration? A modelling approach

Geoderma, Journal Year: 2020, Volume and Issue: 369, P. 114298 - 114298

Published: March 20, 2020

Language: Английский

---

Use of plastic mulch in agriculture and strategies to mitigate the associated environmental concerns

Advances in agronomy, Journal Year: 2020, Volume and Issue: unknown, P. 231 - 287

Published: Jan. 1, 2020

Language: Английский

---