Soil productivity aspects of agri-silviculture in the West African rain forest zone

Nwoboshi, L. C.

doi:10.1016/0304-3746(81)90006-8

Cited by 10 publications

(8 citation statements)

References 1 publication

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“…Gill and Abrol (1986), and Grewal and Abrol (1986), reported the results of trials in Karnal, India, where Acacia nilotica and Eucalyptus tereticornis led to reduction of the soil pH and electrical conductivity from 10.5±9.5, and 4±2, respectively. Similarly, Inga species are known to produce from 5±8 t dry matter ha À 1 yr À 1 of oil-rich leaf litter (Jimenez and Martinez, 1979) and on a coffee plantation in India the litter from the trees produces 134 kg N, 78 kg P 2 O 5 and 22 kg K 2 O p ha À 1 yr À 1 (Nwoboshi, 1981).…”

Section: Introductionmentioning

confidence: 99%

Soil rehabilitation through afforestation: evaluation of the performance of Eucalyptus and pine plantations in a Nigerian Savanna environment

Jaiyeoba

2001

Land Degrad Dev

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On the outskirts of Zaria, northern Nigeria, Eucalyptus camaldulensis and Pinus oocarpa plantations have been established to satisfy both land rehabilitation and agroindustrial objectives. Soils of the plantations and adjacent unafforested degraded sites where major in¯uences from soil type and management were minimal were sampled to provide data for a parallel investigation of the effect of afforestation on soil rehabilitation. Three adjacent age±grade plantations in respect of each tree species were involved. These are 6, 13 and 27 years for eucalyptus, and 7, 15 and 25 years for pines. Results obtained showed that the rate of soil regeneration in the context of present silvicultural practices is extremely slow. Of the soil parameter studies, only organic matter shows signi®cant improvement within the examined time frame. The soil texture, bulk density, in®ltration rate, nutrient elements and pH showed only slight improvement. There was little evidence to suggest that either of the tree species had a more bene®cial effect on the soil than the other. The signi®cance of the results is discussed in terms of land-use decision and policies in Nigeria towards a sustainable afforestation programme.

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Section: Introductionmentioning

confidence: 99%

Soil rehabilitation through afforestation: evaluation of the performance of Eucalyptus and pine plantations in a Nigerian Savanna environment

Jaiyeoba

2001

Land Degrad Dev

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“…Meanwhile, soaking for 3 hours using coconut water stored for three days produced a very low percentage. Seeds are the main element for plant growth and production, which can have a major influence on success or failure, both natural and artificial [25]. Germination from TSS seeds is a critical stage for plant survival.…”

Section: Resultsmentioning

confidence: 99%

Effect of storage time and soaking of natural growth regulators on true shallot seedling

Sugiono,

Sudaryono,

Prahardini

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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This study aimed to determine the effect of the length of storage and soaking of coconut water growth regulators on TSS shallot seedlings. The research was conducted in Torongrejo Village, Junrejo District, Batu City, from April to May 2023. The experiment used a simple randomised block design (RBD) with the following treatments: The first factor is the freshness of young coconut water consisting of 4 levels, namely S0 = fresh/not stored young coconut water, S2 = young coconut water stored two days at room temperature and S3 = young coconut water stored three days at room temperature. Factor II was the soaking time for TSS consisting of 3 levels, namely P1 = TSS soaked for 1 hour, P2 = TSS soaked for 2 hours, and P3 = TSS soaked for 3 hours. The results showed that coconut water’s natural growth regulators contain many substances that help plant growth, including the hormones auxin, cytokinins, and gibberellins, so their effectiveness depends on the length of time the coconut water has been soaked and the coconut water’s shelf life. If the coconut water is stored longer, the soaking time will be shorter, namely 1 hour, and if the coconut water is stored, the time required is shorter.

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“…This definition includes saplings which are usually of dbh less than 20 cm diameter. Saplings and poles are potential mature trees and thus represent good candidates for future recruitment and regeneration of forests (Nwoboshi, 1982);…”

Section: Definition Of Dependent Variablesmentioning

confidence: 99%

Socio-economics of using poles for constructing houses in the Congo Basin

Tieguhong¹

2012

Int. J. Bio. Chem. Sci

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Increasingly, poor people in sub-Saharan Africa are affected by three dimensions of poverty, these being hunger, thirst and living without a decent shelter. This study focused on the latter dimension of poverty and examined the use of housing materials in villages surrounding the Lobeke National Park (LNP) in the Eastern Region of Cameroon. In total 1980 houses were surveyed, of which 1343, 602, 19, 14 and 2 were built with planks, saplings and poles, tree bark and thatch, respectively. The houses were roofed with thatch (1715), aluminum sheets (225) or leaves (40). Variations were observed among ethnic groups regarding their preferences for housing materials. Further analysis concentrated on houses built with poles harvested from indigenous forests. There were six categories of houses built with varying quantities of poles and thatch. Villagers used between 370 000 and 614 000 poles (58-97 times more than the number of trees cut for timber in 2006) to build houses in 14 villages surrounding the LNP. This is particularly destructive because such houses are short-lived, requiring a repetitive harvesting of poles for renovations every 5-15 years. With the removal of poles by adjoining villagers, the structure of indigenous forests and composition can be seriously changed, thus, compromising the possibility of supply future forest goods and services. Therefore, following a rapidly increasing population, there is an urgent need to empower local communities to improve their housing habits by promoting building materials alternative to poles harvested from indigenous forests.

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Soil productivity aspects of agri-silviculture in the West African rain forest zone

Cited by 10 publications

References 1 publication

Soil rehabilitation through afforestation: evaluation of the performance of Eucalyptus and pine plantations in a Nigerian Savanna environment

Soil rehabilitation through afforestation: evaluation of the performance of Eucalyptus and pine plantations in a Nigerian Savanna environment

Effect of storage time and soaking of natural growth regulators on true shallot seedling

Socio-economics of using poles for constructing houses in the Congo Basin

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