Conservation Agriculture as a Sustainable System for Soil Health: A Review

Soil Systems, Год журнала: 2022, Номер 6(4), С. 87 - 87

Опубликована: Ноя. 23, 2022

Soil health is a term used to describe the general state or quality of soil, and in an agroecosystem, soil can be defined as ability respond agricultural practices way that sustainably supports both production provision other ecosystem services. Conventional cause deterioration quality, increasing its compaction, water erosion, salinization decreasing organic matter, nutrient content, biodiversity, which negatively influences productivity long-term sustainability soil. Currently, there are many evidences throughout world demonstrate capability conservation agriculture (CA) sustainable system overcome these adverse effects on health, avoid degradation ensure food security. CA has multiple beneficial physical, chemical, biological properties In addition, reduce negative impacts conventional while conserving Today, development facing unprecedented challenges, plays significant role intensive agriculture. This review will discuss impact their sustainability.

Язык: Английский

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Regenerative Agriculture—A Literature Review on the Practices and Mechanisms Used to Improve Soil Health

Sustainability, Год журнала: 2023, Номер 15(3), С. 2338 - 2338

Опубликована: Янв. 27, 2023

Conventional farming practices can lead to soil degradation and a decline in productivity. Regenerative agriculture (RA) is purported by advocates as solution these issues that focuses on health carbon sequestration. The fundamental principles of RA are keep the covered, minimise disturbance, preserve living roots year round, increase species diversity, integrate livestock, limit or eliminate use synthetic compounds (such herbicides fertilisers). overall objectives rejuvenate land provide environmental, economic, social benefits wider community. Despite RA, vast majority growers reluctant adopt due lack empirical evidence claimed profitability. We examined reported mechanisms associated with against available scientific data. literature suggests agricultural such minimum tillage, residue retention, cover cropping improve carbon, crop yield, certain climatic zones types. Excessive chemicals biodiversity loss ecosystem degradation. Combining livestock agroforestry same landscape several co-benefits. However, vary among different agroecosystems may not necessarily be applicable across multiple agroecological regions. Our recommendation implement rigorous long-term system trials compare conventional order build knowledge regional scales. This will policy-makers an base from which make informed decisions about adopting realise their economic achieve resilience climate change.

Язык: Английский

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Effects of conservation tillage and straw mulching on crop yield, water use efficiency, carbon sequestration and economic benefits in the Loess Plateau region of China: A meta-analysis

Soil and Tillage Research, Год журнала: 2024, Номер 238, С. 106025 - 106025

Опубликована: Фев. 1, 2024

Язык: Английский

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Microbial-derived carbon components are critical for enhancing soil organic carbon in no-tillage croplands: A global perspective

Soil and Tillage Research, Год журнала: 2020, Номер 205, С. 104758 - 104758

Опубликована: Авг. 9, 2020

Язык: Английский

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Bioenergy for climate change mitigation: Scale and sustainability

GCB Bioenergy, Год журнала: 2021, Номер 13(9), С. 1346 - 1371

Опубликована: Май 24, 2021

Abstract Many global climate change mitigation pathways presented in IPCC assessment reports rely heavily on the deployment of bioenergy, often used conjunction with carbon capture and storage. We review literature bioenergy use for mitigation, including studies that top‐down integrated models or bottom‐up modelling, do not modelling. summarize state knowledge concerning potential co‐benefits adverse side effects systems discuss limitations modelling to analyse consequences expansion. The implications supply other sustainability criteria are context dependent influenced by feedstock, management regime, climatic region, scale how alters energy land use. Depending previous use, widespread monoculture plantations may contribute but can cause negative impacts across a range criteria. Strategic integration new biomass into existing agriculture forest landscapes result less positively objectives. There is considerable variation evaluations challenges evolve as increases, due models, uncertainty over future respect many variables influence alternative uses land. Integrative policies, coordinated institutions improved governance mechanisms enhance minimize reduce risks large‐scale bioenergy. Further, conservation efficiency measures energy, support greater flexibility achieving adaptation.

Язык: Английский

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A global meta‐analysis of the impacts of no‐tillage on soil aggregation and aggregate‐associated organic carbon

Land Degradation and Development, Год журнала: 2021, Номер 32(18), С. 5292 - 5305

Опубликована: Сен. 28, 2021

Abstract No‐tillage (NT) has been shown to control soil degradation by impacting aggregates (i.e., basic units of structure, whose characteristics mediate key processes, like carbon sequestration). However, there no systematic analysis the impacts NT on aggregation and aggregate‐associated organic (SOC) at global level. We conducted a meta‐analysis 89 publications elucidate changes in SOC under NT. Notably, we quantified roles diverse environmental agronomic factors (e.g., climatic conditions, experimental duration, cropping intensity, texture, initial SOC/pH) those variables. Relative conventional tillage (CT), significantly increased proportions water‐stable large (LM) small (SM) macro‐aggregates mean weight diameter (MWD) (by 49%, 11%, 23%, respectively) but decreased micro‐aggregates (MIC) silt plus clay‐size particles (SC) 11% 16%, respectively). enhanced concentrations LM (17%), SM (14%), MIC (10%), SC (7%) compared CT. Furthermore, random forest (RF) model demonstrated that texture were predominant controlling Overall, our results indicate is an effective strategy enhance SOC, yet variations responses are determined specific environmental/agronomic factors. This study provided basis for identifying site‐specific practice could help improve structure sequestration, ultimately croplands.

Язык: Английский

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Response of soil organic carbon content to crop rotation and its controls: A global synthesis

Agriculture Ecosystems & Environment, Год журнала: 2022, Номер 335, С. 108017 - 108017

Опубликована: Май 17, 2022

Язык: Английский

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Responses of soil organic carbon to conservation practices including climate-smart agriculture in tropical and subtropical regions: A meta-analysis

The Science of The Total Environment, Год журнала: 2021, Номер 805, С. 150428 - 150428

Опубликована: Сен. 20, 2021

Язык: Английский

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An impact of agronomic practices of sustainable rice-wheat crop intensification on food security, economic adaptability, and environmental mitigation across eastern Indo-Gangetic Plains

Field Crops Research, Год журнала: 2021, Номер 267, С. 108164 - 108164

Опубликована: Май 3, 2021

In the eastern Indo-Gangetic Plains (EIGP), conventional rice-wheat system has led to a decline in productivity, input-use efficiency, and profitability. To address these, four-year field study was conducted evaluate performance of tillage crop establishment (TCE) methods rice-wheat-greengram rotation. The treatments included: 1) random puddled transplanted rice (RPTR) - conventional-till broadcast wheat (BCW) zero-till greengram (ZTG); 2) line PTR (LPTR) drill sown (CTW) ZTG; 3) machine soil (CTMTR) zero (ZTW) 4) wet (ZTMTR) ZTW 5) intensification (SRI) (SWI) 6) direct-seeded (DSR) 7) DSR ZTG. During initial two years, (PTR) recorded 16.2 % higher grain yield than system. Whereas fourth year, yields under were comparable. As compared SRI/SWI, average ZT significantly high, whereas rice, SRI/SWI comparable with CT after non-puddled at par CTW PTR. produced 4.6 more production consumed 6.8 less water On basis, 10.8 net returns CA-based energy productivity 14–36 PTR-based systems. also 8–10 lower global warming potential (GWP) methods. current indicated that as system, significant gain profitability energy-use reduction environmental mitigation are possible emerging alternative TCE Long-term expansion further refinement these technologies local areas need be explored for second green revolution.

Язык: Английский

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Net effects of conservation agriculture principles on sustainable land use: A synthesis

Global Change Biology, Год журнала: 2021, Номер 27(24), С. 6321 - 6330

Опубликована: Сен. 28, 2021

Abstract Despite the strong recommendations from scientists, to till or not remains a confusing question for many farmers around world due worries of crop yield decline and negative impacts on soils environment. A confused understanding role individual principles conservation agriculture significantly limits effectiveness applicability soil strategies frameworks achieve sustainable agriculture. By distinguishing clearly between different agriculture, net effects no‐tillage improving sustaining agro‐ecosystems are analyzed based 49 recent meta‐analyses in this study. The review shows that leads significant (−8.0% 10.0%, median: −1.9%), whereas residue retention represents key driver production (4.0%–28.0%, 8.2%). efficacy water erosion control, especially runoff (−24.0% −0.7%, −10.0%), is often insignificant otherwise lower compared (−87.0% −14.0%, −45.5%). Soil carbon sequestration potential under tillage quite limited even close zero, if any, it can likely be attributed associated (−0.1% 12.8%, 9.7%) rather than (−2.0% 4.8%). Our analysis illustrates as original central principle management less effective supplementary measures, particular retention. Residue may therefore play achieving land use. An additional benefit dramatic change farming practices no‐tillage. results illustrate new framework assessing benefits has developed. To till, question: seems more critical.

Язык: Английский

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