Loading...
Please wait, while we are loading the content...
Similar Documents
Heavy Metals Concentration Under Rubber Plantation (Hevea brasiliensis) in Hydromorphic Soil of South-South Region of Nigeria
| Content Provider | Semantic Scholar |
|---|---|
| Author | Eludoyin, Os Oderinde, Olalekan Azubike, F. O. |
| Copyright Year | 2016 |
| Abstract | This study examined the status of heavy metals in a rubber plantation on the hydromorphic soil of South-south region of Nigeria. Ten 10m x 10m quadrats of 100m apart were randomly laid in the experimental plot (rubber plantation) and control plot (natural forest) whereby soil samples were collected at the topsoil of 0-15cm depth of the soil profile. A total of ten soil samples were collected in each plot with the use of soil auger into well-labelled polythene bags. The soil samples were air-dried and carefully sieved with 2mm diameter mesh after which standard laboratory techniques were used to determine some physical and heavy metals of the soil which included particle size composition, pH, Iron (Fe), Manganese (Mn), Copper (Cu) and Zinc (Zn). The method of statistical analysis adopted was pair-wise t-test to determine the significant differences existing in the soil properties between rubber plantation and natural forest plots at 5% confidence level. Descriptive analysis was used to explain the mean values of soil properties under each plot. Regression analysis was used to determine the trend of relationships between pH and heavy metals. The result of particle size composition revealed that sand content was almost twice clay and silt contents. However, soil pH was generally acidic but more acidic under natural forest with a mean value of 5.3. There was no significant variation existing in the soil properties considered for this study between rubber plantation and natural forest. Except Fe, the concentrations of heavy metals were greater in soils under natural forest. Soil pH had significant correlation with Mn (r= 0.680 at p= 0.05) and Cu (r= 0.673 at p=0.05) in natural forest while soil pH had significant correlation with Mn (r = 0.680 at p=0.05) under rubber plantation. Meanwhile, Zn and Cu were strongly correlated under both natural forest and rubber plantation at 0.01 confidence level. The study recommends that the soil fertility should be improved since the study area was predominantly sandy. Trees that have the ability to absorb heavy metals like Sonneratiacaseolaris can be introduced to the study area. Further investigation of heavy metals in the biomass (root, stem and leaves) of rubber tree should be encouraged so that the variations of the concentrations of heavy metals between rubber tree and the corresponding soil can be understood. |
| Starting Page | 107 |
| Ending Page | 119 |
| Page Count | 13 |
| File Format | PDF HTM / HTML |
| Volume Number | 12 |
| Alternate Webpage(s) | https://strategicplan.oauife.edu.ng/index.php/irpg/article/download/62/58 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
