Classic sons-of- civil war appears to be surprisingly rare , given sub-Saharan ’s high levels of ethnic heterogeneity and the high prevalence of civil war. 3 In SSA’s densely settled, ethnically heterogeneous zones, even SoS conflict on scales of magnitude and intensity that fall well below F&L’s operational definition ...
About Us. About 150 abstracts were accepted at the ASSS International Conference in Cameroon. Abstracts were selected considering the the following sub-themes: Sub-theme 1: data base development . Sub-theme 2: Soils, food crisis and food security. Sub-theme 3: Land and renewable energies. Sub-theme 4: Soils and mitigation ...
About 65% of the agricultural land (2.3 billion ha) is degraded , mainly due to poor fertility management practices, erosion, and acidification (Zingore et al. Citation 2015). Severely degraded soils account for about 350 million ha or 20–25% of the total land area, of which about 100 million ha is estimated to be ...
3.2 Relevance of Land Rights/Tenure to Sustainable Management. Clarity on land tenure and rights is critical and ought to be seen as a prerequisite for sustainable management . This is also important for medium or even long-term investments. Footnote 20 The land rights systems are very different states ...
This paper aims to estimate ratio of area equipped for irrigation to cultivated area (AI) in 2035 and 2060 using studies of agricultural water management from 1962 to 2011. For this purpose, all necessary information was gathered from Food and Agriculture Organization of the United Nations (FAO) and their values were checked using The ...
Fertility and Hunger . P. Sánchez. Published in 15 March 2002. Agricultural and Food Sciences, Environmental , Economics. The fundamental biophysical cause of stagnant per capita food production is fertility depletion. Because mineral fertilizers cost two to six times as much as those sold worldwide ...
2.5 Soils of . is the foundation of many of the Sustainable Development Goals. In addition to providing the medium for food, fodder, and fuel wood production (around 98% of the calories consumed are derived from the ), controls the recycling of nitrogen, phosphorus, carbon, and other nutrients.
The Soils4Africa deliverables project include a set of key indicators for assessment , methods for their quantification, and a fully documented methodology for field observations, sampling, laboratory analysis, data management, mapping and derivation of indicators, as well as the SIS itself. Consortium.
of issues built from site-specific information exists. Even so, it is widely understood that the main -quality issues include erosion, loss of organic mat-ter, nutrient deficits and imbalances, loss of biodiver-sity, salinization, acidification, and sealing. For Sub-Saharan , an estimated 65 percent
degradation is a widespread problem resulting in decreased agricultural productivity while demand for food continues to increase. Degradation is caused by accelerated erosion, acidification, contamination, depletion of organic matter and plant nutrients, and salinization. The major cause of degradation is ...
Depletion of fertility, along with the concomitant problems of weeds, pests, and diseases, is a major biophysical cause of low per capita food production . This is the result of the breakdown of traditional practices and the low priority given by governments to the rural sector ( 3 ). Over decades, small-scale farmers have removed ...
Some states and developed countries are now considering restoring high priority to agricultural development (2). Policy-makers must get the strategy right. Depletion of , along with the concomitant problems of weeds, pests, and diseases, is a major biophysical cause of low per capita food production ...
Irrigation, animal traction or draft animals, and the use of chemical fertilizers are also important. Much of the agrarian stagnation is caused by neglect and misuse of the most basic of all resources, the . In fact, the root cause of the perpetual famine can be traced to the misuse of and water resources and issues related ...