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
Perception of the Relevance of Soil Compaction and Application of Measures to Prevent It among German Farmers
TL;DR: In this paper, the authors conducted an online survey among farmers in Germany in winter 2017/2018 to determine the relevance of this issue for farmers, whether and which mitigation measures are applied to avoid it, and what a (non-) application might depend on.
Journal Article
Review on Role of Soil and Water Conservation Measures on Soil Physico Chemical Properties and Its Implication to Climate Change Mitigation and Adaptation
TL;DR: In this article, the role of soil and water conservation on soil physical and chemical properties and it's implication to climate change adaptation and mitigation is assessed and the results showed that soil treated with soil and Water conservation stored more organic carbon as compared to non treated soil.
Journal ArticleDOI
Short Term Effects of Revegetation on Labile Carbon and Available Nutrients of Sodic Soils in Northeast China
TL;DR: In this paper, the authors investigated the influences of short-term conversion of cropland to alfalfa forage, monoculture Leymus chinensis grassland, and successional regrowth grassland on the labile carbon and available nutrients of sodic soils in northeastern China.
Journal ArticleDOI
Enzymatic Activity of Soils Forming on an Afforested Heap from an Opencast Sulphur Mine
TL;DR: In this paper, the results of an evaluation of the enzymatic activity of soils formed on an afforested heap from an opencast sulphur mine were presented and statistical analysis of the obtained results showed that the activity of the evaluated enzymes in the soils formed in the reclaimed areas was significantly dependent on the type of substrate and the species composition of the plants.
Journal ArticleDOI
Changes in physical and hydraulic properties of a clay soil due to the irrigation of tomatoes with recycled wastewater
Azize Doğan Demir,Üstün Şahin +1 more
TL;DR: In this article, the physical and hydraulic properties of the soil did not change significantly under different irrigation practices, however, the porosity, available water content, and infiltration improved partly under partial root-zone drying practice with 50% water shortage.
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