Exploring land quality effects on world food supply
| Autor: | Niels H. Batjes, J.J.R Groot, Johan Bouma |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Population
yields Soil Science Agricultural engineering opbrengsten soil degradation Soil retrogression and degradation bodemdegradatie land capability Agricultural productivity education Hydrology education.field_of_study Research Institute for Agrobiology and Soil Fertility Laboratorium voor Bodemkunde en geologie Land use business.industry Instituut voor Agrobiologisch en Bodemvruchtbaarheidsonderzoek Laboratory of Soil Science and Geology PE&RC Soil type Soil quality Agriculture Soil water Environmental science business grondvermogen ISRIC - World Soil Information |
| Zdroj: | Geoderma, 86, 43-59 Geoderma 86 (1998) |
| ISSN: | 0016-7061 |
| DOI: | 10.1016/s0016-7061(98)00034-2 |
| Popis: | In a previous study, simulations of agricultural production potentials were made for different exploratory scenarios considering population growth, type of diet and low and high input agriculture. Results indicated that future world populations can be fed, but problems are likely in South Asia. The simulations involved gross generalizations for soil conditions. For example, possible effects of soil degradation were not expressed. The current study was made to explore the effects of the different types of soil degradation on agricultural production, using major soil groupings of the Humid Tropics and Seasonally Dry (Sub)Tropics as examples. Degradation (compaction, erosion and acidification) is expressed in terms of soil quality indicators relating potential to actual production. Results are characteristically different for different soil units (genoforms), and the suggestion is made to present such differences in future soil databases for phenoforms that express effects of different forms of degradation or improvement, allowing better assessments for exploratory land use scenarios. Field studies should be initiated to describe realistic phenoforms for any given genoform. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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