Restoring Soil Quality to Mitigate Soil Degradation
Reads0
Chats0
TLDR
In this paper, the authors proposed a strategy to minimize soil erosion, create positive organic carbon (SOC) and N budgets, enhance activity and species diversity of soil biota (micro, meso, and macro), and improve structural stability and pore geometry.Abstract:
Feeding the world population, 7.3 billion in 2015 and projected to increase to 9.5 billion by 2050, necessitates an increase in agricultural production of ~70% between 2005 and 2050. Soil degradation, characterized by decline in quality and decrease in ecosystem goods and services, is a major constraint to achieving the required increase in agricultural production. Soil is a non-renewable resource on human time scales with its vulnerability to degradation depending on complex interactions between processes, factors and causes occurring at a range of spatial and temporal scales. Among the major soil degradation processes are accelerated erosion, depletion of the soil organic carbon (SOC) pool and loss in biodiversity, loss of soil fertility and elemental imbalance, acidification and salinization. Soil degradation trends can be reversed by conversion to a restorative land use and adoption of recommended management practices. The strategy is to minimize soil erosion, create positive SOC and N budgets, enhance activity and species diversity of soil biota (micro, meso, and macro), and improve structural stability and pore geometry. Improving soil quality (i.e., increasing SOC pool, improving soil structure, enhancing soil fertility) can reduce risks of soil degradation (physical, chemical, biological and ecological) while improving the environment. Increasing the SOC pool to above the critical level (10 to 15 g/kg) is essential to set-in-motion the restorative trends. Site-specific techniques of restoring soil quality include conservation agriculture, integrated nutrient management, continuous vegetative cover such as residue mulch and cover cropping, and controlled grazing at appropriate stocking rates. The strategy is to produce “more from less” by reducing losses and increasing soil, water, and nutrient use efficiency.read more
Citations
More filters
Journal ArticleDOI
Optimizing biochar application to improve soil physical and hydraulic properties in saline-alkali soils.
Jiaping Liang,Yi Li,Bingcheng Si,Yanzi Wang,Xinguo Chen,Xiaofang Wang,Haoran Chen,Haoran Wang,Fucang Zhang,Yungang Bai,Asim Biswas +10 more
TL;DR: The results indicated that a dose of 21.9 t ha-1 was recommended as the most optimal biochar application amount for improving physical and hydraulic properties of saline-alkali soil.
Journal ArticleDOI
Agricultural Expansion in the Brazilian Cerrado: Increased Soil and Nutrient Losses and Decreased Agricultural Productivity
Luciene Gomes,Silvio Jorge Coelho Simões,Eloi Lennon Dalla Nora,Eráclito Rodrigues de Sousa-Neto,M. C. Forti,Jean Pierre Henry Balbaud Ometto +5 more
TL;DR: In this paper, the potential of soil loss, agricultural productivity loss, and nutrient loss for Brazil's most important agricultural region, the Brazilian Cerrado, for the years 2000 and 2012 was estimated.
Journal ArticleDOI
Long-term soil biological fertility, volatile organic compounds and chemical properties in a vineyard soil after biochar amendment
Laura Giagnoni,Anita Maienza,Silvia Baronti,Francesco Primo Vaccari,Lorenzo Genesio,Cosimo Taiti,Tania Martellini,Roberto Scodellini,Alessandra Cincinelli,Corrado Costa,Stefano Mancuso,Giancarlo Renella +11 more
TL;DR: The use of biochar as soil amendment has been suggested as a potential practice that allows restoration of the functionality of degraded soils in terms of water retention, chemical and biological fertility as mentioned in this paper.
Journal ArticleDOI
Evaluation of hydroponic systems for the cultivation of Lettuce (Lactuca sativa L., var. Longifolia) and comparison with protected soil-based cultivation
Maliqa Majid,Junaid N. Khan,Qazi Muneeb Ahmad Shah,Khalid Z. Masoodi,Baseerat Afroza,Saqib Parvaze +5 more
TL;DR: In this article, the suitability and viability of hydroponic cultivation as an alternative planting system to greenhouse soil-based lettuce cultivation in temperate regions of northern India was evaluated.
Journal ArticleDOI
Long-term animal manure application promoted biological binding agents but not soil aggregation in a Vertisol
TL;DR: In this paper, the effects of long-term application of inorganic fertilizer, straw and manure on water-stable aggregate distribution (>2.5mm, 0.25-2.0mm, and P + ) were investigated.
References
More filters
Journal ArticleDOI
Soil carbon sequestration impacts on global climate change and food security.
TL;DR: In this article, the carbon sink capacity of the world’s agricultural and degraded soils is 50 to 66% of the historic carbon loss of 42 to 78 gigatons of carbon.
Journal ArticleDOI
Organic matter and water-stable aggregates in soils
Judith. Tisdall,J.M. Oades +1 more
TL;DR: In this article, the effectiveness of various binding agents at different stages in the structural organization of aggregates is described and forms the basis of a model which illustrates the architecture of an aggregate.
Journal ArticleDOI
Environmental and Economic Costs of Soil Erosion and Conservation Benefits
David Pimentel,Celia A. Harvey,P. Resosudarmo,K. Sinclair,D. Kurz,M. McNair,S. Crist,L. Shpritz,L. Fitton,R. Saffouri,R. Blair +10 more
TL;DR: With the addition of a quarter of a million people each day, the world population's food demand is increasing at a time when per capita food productivity is beginning to decline.
Journal ArticleDOI
Soil Quality: A Concept, Definition, and Framework for Evaluation (A Guest Editorial)
Douglas L. Karlen,Maurice J. Mausbach,John W. Doran,R. G. Cline,R. F. Harris,Gerald E. Schuman +5 more
TL;DR: The Soil Science Society of America (SSSA) Ad Hoc Committee on Soil Quality (S-581) as mentioned in this paper defined soil quality as "the capacity (of soil) to function".
Journal ArticleDOI
持続可能性(Sustainability)の要件
TL;DR: The Bachelor of Science in Sustainability as discussed by the authors provides the broad fundamental knowledge, skills and competencies needed to drive sustainable outcomes that address today's urgent environmental, economic and social challenges.
Related Papers (5)
An Examination of the Degtjareff Method for Determining Soil Organic Matter, and a Proposed Modification of the Chromic Acid Titration Method
A Walkley,I A Black +1 more
Solutions for a cultivated planet
Jonathan A. Foley,Navin Ramankutty,Kate A. Brauman,E. S. Cassidy,James S. Gerber,M. Johnston,Nathaniel D. Mueller,Christine S. O’Connell,Deepak K. Ray,Paul C. West,Christian Balzer,Elena M. Bennett,Stephen R. Carpenter,Jason Hill,Chad Monfreda,Stephen Polasky,Johan Rockström,John Sheehan,Stefan Siebert,David Tilman,David P. M. Zaks +20 more