scholarly journals Ensemble Modeling on Near-Infrared Spectra as Rapid Tool for Assessment of Soil Health Indicators for Sustainable Food Production Systems

Soil Systems ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 69
Author(s):  
John Walker Recha ◽  
Kennedy O. Olale ◽  
Andrew Sila ◽  
Gebermedihin Ambaw ◽  
Maren Radeny ◽  
...  
Keyword(s):  
Land Use ◽  
Food Production ◽  
Production Systems ◽  
Soil Health ◽  
Health Indicators ◽  
Ensemble Method ◽  
Land Uses ◽  
Sustainable Food ◽  
Sustainable Food Production ◽  
Land Use Practices

A novel total ensemble (TE) algorithm was developed and compared with random forest optimization (RFO), gradient boosted machines (GBM), partial least squares (PLS), Cubist and Bayesian additive regression tree (BART) algorithms to predict numerous soil health indicators in soils with diverse climate-smart land uses at different soil depths. The study investigated how land-use practices affect several soil health indicators. Good predictions using the ensemble method were obtained for total carbon (R2 = 0.87; RMSE = 0.39; RPIQ = 1.36 and RPD = 1.51), total nitrogen (R2 = 0.82; RMSE = 0.03; RPIQ = 2.00 and RPD = 1.60), and exchangeable bases, m3. Cu, m3. Fe, m3. B, m3. Mn, exchangeable Na, Ca (R2 > 0.70). The performances of algorithms were in order of TE > Cubist > BART > PLS > GBM > RFO. Soil properties differed significantly among land uses and between soil depths. In Kenya, however, soil pH was not significant, except at depths of 45–100 cm, while the Fe levels in Tanzanian grassland were significantly high at all depths. Ugandan agroforestry had a substantially high concentration of ExCa at 0–15 cm. The total ensemble method showed better predictions as compared to other algorithms. Climate-smart land-use practices to preserve soil quality can be adopted for sustainable food production systems.

Review and appraisal of concept of sustainable food production systems

1991 ◽  
Vol 15 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Michael Brklacich ◽  
Christopher R. Bryant ◽  
Barry Smit
Keyword(s):  
Food Production ◽  
Production Systems ◽  
Sustainable Food ◽  
Sustainable Food Production

Subsistence ecology and carrying capacity in two Papua New Guinea populations

1994 ◽  
Vol 26 (3) ◽  
pp. 395-407 ◽  
Author(s):  
Ryutaro Ohtsuka
Keyword(s):  
Land Use ◽  
Resource Management ◽  
Papua New Guinea ◽  
Carrying Capacity ◽  
Food Production ◽  
Population Level ◽  
New Guinea ◽  
Population Densities ◽  
Sustainable Food ◽  
Sustainable Food Production

SummaryThis article examines the mechanisms of subsistence adaptation of two Papua New Guinea populations, the Metroxylon sago-depending lowland Gidra and the taro-monoculture Mountain Ok, surviving in low population densities of 0·5 and 1·4 persons per km2. Observation of the groups' land use systems strongly suggests that their population densities have not been far below the carrying capacity, although the territory of each population is markedly heterogeneous. Both groups have maintained their sustainable food production not only for resource management but also for survival at a population level, either expanding their territory or changing the sustainable level in tandem with changes of subsistence system.

scholarly journals Consumption and Production Patterns for Agricultural Sustainable Development

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 814
Author(s):  
Riccardo Testa
Keyword(s):  
Sustainable Development ◽  
Food Production ◽  
Production Systems ◽  
World Population ◽  
Sustainable Food ◽  
Sustainable Food Production ◽  
Agricultural Sustainable Development ◽  
The World

Agriculture has always played a key role in feeding the world population and ensuring the development of sustainable food production systems [...]

Expanding the contribution of dairy goats in efficient and sustainable production systems

2014 ◽  
Vol 54 (9) ◽  
pp. 1198 ◽  
Author(s):  
J. B. Liang ◽  
C. Devendra
Keyword(s):  
Food Production ◽  
Production Systems ◽  
Goat Milk ◽  
Cow Milk ◽  
Dairy Goat ◽  
Human Populations ◽  
Market Demand ◽  
Dairy Goats ◽  
Sustainable Food ◽  
Sustainable Food Production

Goats contribute significantly to human nutrition, food security and income of resource-poor small farmers in Asia, Africa and beyond. Because of the high content of mono- and polyunsaturated fatty acids in goat milk, it is beneficial for human health resulting in it being sold at premium prices of three to nine times the price of cow milk in countries like China, Malaysia, Indonesia and Thailand. Goats play a significant role in farming systems that directly impact on the capacity of rural farmers striving for the objective of sustainable food production systems. Increasing sustainable food production, particularly of animal proteins, presents major challenges to these small farms in the face of massive demands that are driven by rapid growth of human populations and increased availability of disposable income. In the last two decades, expanding market demand for goat milk has resulted in the establishment of commercial dairy goat farms in several newly developed South-east Asian countries. Major challenges to expanding production exist, and include ways to utilise the well-adapted features inherent in goats and their potential production to benefit the small and commercial farmers alike. Increasing the knowledge base is a priority to stimulate improved production systems and, increased the income of dairy goat farmers and other people involved in the industry. The recent establishment of the Asian-Australasian Dairy Goat Network supported jointly by FAO and Universiti Putra Malaysia, and national programs of participating countries, are committed to address these objectives and facilitate much-needed improvements to sustain dairy goat production systems in Asia and beyond.

Sustainable food production systems: the potential of pulses

Pulse Foods ◽  
2021 ◽  
pp. 487-506
Author(s):  
Anushree Priyadarshini ◽  
Brijesh K. Tiwari ◽  
Gaurav Rajauria
Keyword(s):  
Food Production ◽  
Production Systems ◽  
Sustainable Food ◽  
Sustainable Food Production
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