The Effects of Trees on Soil Chemistry

2019 ◽  
Vol 6 (1) ◽  
pp. 35-44
Author(s):  
Vincent Habumugisha ◽  
Khaldoon A. Mourad ◽  
Léonidas Hashakimana
Keyword(s):  
Significant Influence ◽  
Tree Species ◽  
Soil Chemistry ◽  
Chemical Properties ◽  
Soil Samples ◽  
Available Phosphorus ◽  
Exchangeable Acidity ◽  
Aluminum Ions ◽  
Different Depths ◽  
Chemical Properties Of Soils

Background: Trees often affect the chemical properties of soil, positively or negatively. Objective: This paper studied the effects of Podocarpus falcatus and Markhamia lutea trees on soil chemistry in Ruhande Arboretum, Rwanda. Methods: Soil samples were collected using Zigzag method from Arboretum forest of Ruhande at different depths (0-20, 20-40 and 40-60 cm). For each plot, 25 samples were collected to make one composite sample per plot for each depth. Results: The results showed that tree species contributed to the changes of soil chemistry along the depths of the soil layers. The laboratory analyses showed that there was a high significant influence of tree species on soil pH and Aluminum ions. However, it was observed that there was no significant influence of Podocarpus falcatus and Markhamia lutea species on the available phosphorus or on the total exchangeable acidity. On the other hand, analyzing soil samples under Markhamia lutea showed an increase in the total nitrogen and a decrease in the pH and available phosphorus. Conclusion: Trees affect the chemical properties of soils. Therefore, it is recommended that under acidic soils, for example, forestry and agroforestry actors should use less acidifying tree species, such as Markhamia lutea and Podocarpus falcatus.

scholarly journals Three Invasive Tree Species Change Soil Chemistry in Guam Forests

Forests ◽  
2020 ◽  
Vol 11 (3) ◽  
pp. 279 ◽  
Author(s):  
Thomas E. Marler
Keyword(s):  
Tree Species ◽  
Soil Chemistry ◽  
Chemical Properties ◽  
Total Carbon ◽  
Tree Cover ◽  
Available Phosphorus ◽  
Nitrogen And Phosphorus ◽  
Invasive Tree ◽  
Invasive Tree Species ◽  
Forms Of Carbon

Research Highlights: Established stands of Leucaena leucocephala (Lam.) de Wit, Spathodea campanulata P. Beauv., and Vitex parviflora Juss. modified soils in Guam’s limestone forests, reducing storage pools of carbon, nitrogen, and phosphorus. Background and Objectives: Invasive plants may engineer negative changes in ecosystem properties. This study was conducted to determine changes in soil chemistry following infestations of three problematic tree species on Guam. Materials and Methods: Minerals, metals, and mineralization dynamics were measured in invaded sites and paired sites with biodiverse native tree cover. Results: Most soil properties were significantly changed by long-term infestations of the invasive tree species. The soils within invaded sites exhibited total carbon, total nitrogen, and available phosphorus that were less than native sites. In contrast, the carbon/nitrogen ratio increased for every species-site combination. The other chemical properties were idiosyncratic among the sites and species. Conclusions: Mitigation and restoration activities that include the removal of these trees from project sites may require many years for the below-ground ecosystems to return to their native state. These three invasive trees decrease the ability of Guam soils to sequester recalcitrant forms of carbon, nitrogen, and phosphorus.

scholarly journals Long-term influence of applied amphibolite powder on the chemistry of soil supporting Norway spruce plantation

2014 ◽  
Vol 60 (No. 2) ◽  
pp. 75-83 ◽  
Author(s):  
I. Kuneš ◽  
M. Baláš ◽  
V. Balcar
Keyword(s):  
Norway Spruce ◽  
Soil Chemistry ◽  
Chemical Properties ◽  
Soil Samples ◽  
Soil Reaction ◽  
Available Phosphorus ◽  
Exchangeable Ca ◽  
Reaction Concentration

The article assesses the effects of amphibolite applied to the planting holes of spruces on the soil chemistry. The sampling was conducted fourteen growth seasons after the establishment of the experimental spruce plantation. In both treatments (control and amphibolite) the soil samples were taken from the interior of the planting holes as well as from the intact area around the planting holes. Fourteen growth seasons after application the effects of the pulverised amphibolite were not marked despite being detectable. In comparison with the control the soil in the planting holes of the amphibolite treatment showed significantly higher soil reaction, concentration of available phosphorus and partially also concentration of exchangeable Ca. All the significant effects of amphibolite were confined to the soil inside the planting holes. As for the evaluated chemical properties no significant undesirable effects of the amphibolite on soil chemistry were recorded.  

scholarly journals Physico-chemical Properties of Soil of Rangapani Tea Estate of Bangladesh

2011 ◽  
Vol 3 (3) ◽  
pp. 683-688
Author(s):  
M. N. Islam ◽  
A. F. M. Sanaullah
Keyword(s):  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Chemical Properties ◽  
Clay Content ◽  
Exchange Capacity ◽  
Soil Samples ◽  
Physico Chemical ◽  
Different Depths ◽  
Chemical Properties Of Soils ◽  
Topographic Positions

Bangladesh is one of the tea producing countries of the world. It has 163 tea estates. Rangapani is a low yielding tea estate relative to other neighboring tea estates of Chittagong district in Bangladesh. A total 54 soil samples were collected from six different hills and three topographic positions having different depths of Rnagapanni Tea-Estate. Physico-Chemical properties of soils such as active acidity, reserve acidity, cation exchange capacity and clay content of the collected soil samples were determined. The measured parameters of the soil samples were plotted and analyzed with reference to site and topography. The parameters have been found to vary with sampling sites, depths and topography. Active acidity and reserve acidity were very low, with some exceptions compared to the optimum range for tea cultivation. Sand, silt, clay and cation exchange capacity (CEC) were found in reasonable range Keywords:  Soil; Active acidity; Reserve acidity; Cation exchange capacity; Clay content. © 2011 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. doi: 10.3329/jsr.v3i3.7503               J. Sci. Res. 3 (3), 683-688 (2011)

scholarly journals Effect of Tillage System and Organic Matter Management Interactions on Soil Chemical Properties and Biological Activity in a Spring Wheat Short-Time Cultivation

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7451
Author(s):  
Barbara Breza-Boruta ◽  
Karol Kotwica ◽  
Justyna Bauza-Kaszewska
Keyword(s):  
Organic Matter ◽  
Biological Activity ◽  
Organic Carbon ◽  
Spring Wheat ◽  
Chemical Properties ◽  
Soil Samples ◽  
Available Phosphorus ◽  
Organic Carbon Content ◽  
Tillage System ◽  
Short Time

Properly selected tillage methods and management of the available organic matter resources are considered important measures to enable farming in accordance with the principles of sustainable agriculture. Depending on the depth and intensity of cultivation, tillage practices affect soil chemical composition, structure and biological activity. The three-year experiment was performed on the soil under spring wheat (cv. Tybalt) short-time cultivation. The influence of different tillage systems and stubble management on the soil’s chemical and biological parameters was analyzed. Organic carbon content (OC); content of biologically available phosphorus (Pa), potassium (Ka), and magnesium (Mg); content of total nitrogen (TN), mineral nitrogen forms: N-NO3 and N-NH4 were determined in various soil samples. Moreover, the total number of microorganisms (TNM), bacteria (B), actinobacteria (A), fungi (F); soil respiratory activity (SR); and pH in 1 M KCl (pH) were also investigated. The results show that organic matter amendment is of greater influence on soil characteristics than the tillage system applied. Manure application, as well as leaving the straw in the field, resulted in higher amounts of organic carbon and biologically available potassium. A significant increase in the number of soil microorganisms was also observed in soil samples from the experimental plots including this procedure.

scholarly journals Evaluation of Physicochemical Properties and Microbial Populations of Soil of Bagale Forest Reserve, Girei Local Government Area, Adamawa State, Nigeria

2020 ◽  
pp. 13-21
Author(s):  
G. O. Ateh ◽  
M. G. Saka ◽  
E. E. Dishan ◽  
B. B. Meer
Keyword(s):  
Local Government ◽  
Physicochemical Properties ◽  
Soil Depth ◽  
Chemical Properties ◽  
Soil Samples ◽  
Local Government Area ◽  
Microbial Populations ◽  
Available Phosphorus ◽  
High Porosity ◽  
Forest Reserve

This study evaluated the relationship between selected physicochemical properties and microbial populations of the soil of Bagale Forest Reserve, Girei Local Government Area of Adamawa State, Nigeria. Five plots of 20 x 20 m were laid. Soil samples were collected from five different positions at two soil depths of 0-15 cm and 15-30 cm. The soil samples were isolated in the laboratory for microbial populations and determination of physical and chemical properties. The results obtained revealed that fungal population (7.65 x 105 cfu/ml) was the highest at the soil depth of 0-15 cm, representing 39% of the total microbial populations in the sampled soil of the study area. The results further revealed that the population (6.84 x 105 cfu/ml) of the bacteria had a positive effect on soils of the study area in terms of nitrogen fixation by Rhizobacterial spp. Chemical properties of the soil samples revealed that the available phosphorus exhibited the highest percentage (61.7%) at 0-15 cm soil depth. Analyses of soil physical properties recorded the highest percentage (49.0%) of sand at 0-15 cm soil depth. A similar percentage (50.0%) of sand was exhibited at the depth of 15-30 cm. These percentages accounted for the high porosity (29.0%) of the soil observed at the two soil levels in the study area and could be improved through the application of lime fertilizers. Application of appropriate fertilizers like NPK to improve the soil condition of the study area is highly recommended.

scholarly journals Physical and chemical properties of soils in different physiographic environments in the southern Amazonas region

2019 ◽  
Vol 35 (4) ◽  
Author(s):  
Willian Barros Nascimento ◽  
Milton César Costa Campos ◽  
Bruno Campos Mantovanelli ◽  
Luís Antônio Coutrim dos Santos ◽  
José Mauricio Cunha ◽  
...  
Keyword(s):  
Particle Density ◽  
Broad Class ◽  
Chemical Properties ◽  
Principal Component ◽  
Available Phosphorus ◽  
Physical And Chemical Properties ◽  
Dry Land ◽  
Chemical Properties Of Soils ◽  
Physical And Chemical ◽  
And Chemical Properties

The Amazon region has a great diversity of landscapes such as forests galleries, natural fields (“Cerrados Amazônicos”), dense forest, these environments made possible the formation of a broad class of soils over time. The aim of this study was to evaluate the physical and chemical properties of soils in different physiographic environments in southern Amazonas, Brazil. Three areas of representative physiographies were selected, all of them in natural conditions: natural field / forest and floodplain / dry land transitions, and corrugated relief areas. Soil samples were collected in layers of 0.0 to 0.20 and 0.80-1.0 m. From the samples collected the following physical analyzes were performed: particle size, bulk density, particle density, total porosity and saturated hydraulic conductivity; and chemical: exchangeable calcium, magnesium, aluminum and potassium available, phosphorus, potential acidity, pH and organic carbon. Based on the results of chemical analysis were calculated the sum of bases and base saturation. The results were submitted to multivariate statistics analysis, at the discretion of the principal component analysis (PCA). From the results it is clear that different physiographic environments studied influence the formation of different soil classes, featuring the diversity of Amazonian soils. The PCA allowed the distinction and formation of different similarity groups, thus enabling to relate the physical and chemical properties with the physiographic formation in which they are inserted.

scholarly journals Soil Chemical Properties under Conservation Agriculture and Cereal-Based Cropping System in Eastern Tarai of Nepal

2020 ◽  
Vol 6 ◽  
pp. 115-126
Author(s):  
Shukra Raj Shrestha ◽  
Jiban Shrestha ◽  
Sanjeet Kumar Jha ◽  
Dinesh Khadka ◽  
Prakash Paneru ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Cropping System ◽  
Conservation Agriculture ◽  
Conventional Tillage ◽  
Soil Samples ◽  
Kidney Bean ◽  
Soil Chemical Properties ◽  
Available Phosphorus ◽  
Zero Tillage ◽  
Total N

Field experiments were conducted for four years (2014-2017) at five locations namely Salbani, Bhokraha, Simariya, Bhaluwa and Kaptanganj of Sunsari district to assess the changes in soil chemical properties under conservation agriculture (CA)-based practices in two cropping systems namely rice-kidney bean-maize at Salbani and rice-wheat at rest of the locations. In rice-wheat cropping system, there were four treatments: (1) conventional tillage (CT) for rice transplantation and subsequent wheat sowing, (2) conventional tillage rice transplantation followed by zero tillage (ZT) wheat, (3) unpuddled rice transplantation followed by zero tillage wheat, (4) zero tillage in both rice and wheat. Similarly, in rice-kidney bean-maize cropping system, there were four treatments; (1) conventional tillage for rice transplantation and sowing of both kidney bean and maize, (2) conventional tillage rice transplantation followed by zero tillage in both kidney bean and maize, (3) unpuddled rice transplantation followed by zero tillage in both kidney bean and maize, (4) zero tillage in all three crops. Soil samples were taken at initial and every year after rice harvest.The soil samples were analyzed for total nitrogen, available phosphorus, available potassium, pH and soil organic matter.Total nitrogen (N) showed a slightly decreasing trend in the first three years and showed a slight increase at the end of experiment under ZT in all locations. The total N under ZT changed from 0.12 to 0.13%, 0.05 to 0.06%, 0.10 to 0.12%, 0.11 to 0.08% and 0.09 to 0.13% in Salbani, Bhokraha, Simariya, Bhaluwa and Kaptanganj, respectively.  All locations showed the positive values of available potassium; Salbani  revealing considerable change of 64.3 to 78.5 mg/kg in CT while 68.4 to 73.3 mg/kg in ZT condition. The treatment where rice was transplanted in unpuddled condition and zero tilled to wheat, had a mean value of available phosphorus and potassium as 87.3 and 81.9 mg/kg respectively. Soil pH ranged from 4.8 to 7.1 in CT while it was 5.2 to 6.8 in ZT across the locations. The change in soil organic matter in CT of all locations except Salbani was narrower as compared to ZT.

scholarly journals Studies on Some Pedological Indices, Nutrient Flux Pattern and Plant Distribution in Metropolitan Dumpsites in Uyo, Akwa Ibom State

2013 ◽  
Vol 1 (02) ◽  
pp. 40-45
Author(s):  
Felix Ogbemudia ◽  
Emem Mbong
Keyword(s):  
Chemical Properties ◽  
Nutrient Flux ◽  
Soil Samples ◽  
Plant Distribution ◽  
Physical And Chemical Properties ◽  
Nutrient Profile ◽  
Permissible Range ◽  
Chemical Properties Of Soils ◽  
Physical And Chemical ◽  
And Chemical Properties

The physical and chemical properties of soils and plants distribution in metropolitan dumpsites in Uyo, Nigeria were studied. Soil samples were collected from two popular dumpsites and analysed using standard scientific procedures. The Results showed that there were slight desparities in the nutrient profile of these dumpsites. Generally, the nutrients levels were high and soil heavy metals concentration were found to be within permissible limits. This study also revealed the monospecific nature of dumpsite 1 and higher species presence corresponding with increased nutrient levels in dumpsite site 2. This study encourages the use of dumpsites soils for agricultural purpose(s) when the soil heavy metal falls within permissible range.

scholarly journals Soil fertility status of Ratte Khera farm of Punjab Agricultural University, Punjab, India

2020 ◽  
Vol 41 (6) ◽  
pp. 1665-1675
Author(s):  
R. Bhatt ◽  
◽  
Sanjay Swami ◽  
Keyword(s):  
Chemical Properties ◽  
Available Phosphorus ◽  
Lower Range ◽  
Physico Chemical ◽  
Nutrient Index ◽  
Different Depths ◽  
Soil Fertility Status ◽  
Effective Use ◽  
P Fertilizers ◽  
Different Soils

Aim: To delineates micro and macro nutrients along with physico-chemical properties of Ratte-Khera farm of Punjab Agricultural University (PAU), Ludhiana, Punjab, India for effective use of nutrients. Methodology: Thirty two soil samples were collected during 2019 from eight different location using GPS from different soils depths viz.? 0-15,15-30, 30-60 and 60-90 cm in the problematic water logged soils of Ratte-khera farm. Further, GPS maps were also prepared pertaining to different depths for the judicious use of fertilizers in the region.? Parker nutrient index was also evaluated for different nutrients for the region. Results: Around 87.5% of the samples had normal pH (6.5 -8.7) and 12.5% soils were with pH on higher side with higher range of EC, lower range of SOC, higher and potassium. About 87.5 % samples were in higher available-phosphorus. Further, lower and higher range of DTPA zinc and copper observed in samples while 25 and 37.5% recorded with lower range of DTPA iron (Fe) and manganese (Mn). Correlation analysis revealed? availability of Fe is positively associated with Mn, P, Cu and Zn in the soil. Interpretation: Soils of Ratte-Khera farm reported to be saline (white alkali soils) with normal range of pH (no need to add any gypsum or lime). Final recommendation is to apply 25% higher dose of nitrogenous (N) and phosphatic (P) fertilizers with no need for potassic fertilizers. Further, micro-nutrients should be applied as and when symptoms observed on the field crops.

scholarly journals Some selected physical and chemical attributes of a Ustalf under different tillage practices at Dutse, Jigawa State Nigeria.

2019 ◽  
pp. 62-69
Author(s):  
Nabayi A. ◽  
Girei A.H. ◽  
Usman S. ◽  
Abubakar M.S. ◽  
Haruna F.D. ◽  
...  
Keyword(s):  
Sandy Loam ◽  
Chemical Properties ◽  
Conventional Tillage ◽  
Available Phosphorus ◽  
Exchangeable Acidity ◽  
Tillage Practices ◽  
Lower Porosity ◽  
Chemical Attributes ◽  
Level Of Significance ◽  
Physical And Chemical

Different tillage practices are being employed by the farmers of Jigawa state, and as such, there is a need to determine its influence on some physical and chemical properties, so that farmers will base their choices on scientific facts rather than assumptions. An experiment was conducted to investigate the effects of three tillage practices (TP) on soil properties in Federal University Dutse, Teachings and Research farm, Jigawa State. The TP adopted are conventional tillage (CT), reduced tillage (RT) and zero-tillage (ZT). Samples were collected at a depth of 0 -20 cm for the chemical and other physical properties determination, while core samplers were used for bulk density (Bd) determination. All data collected were analyzed using Statistical Analysis Software (SAS and analysis of variance (ANOVA) was used to determine the significant tillage effect on the parameters measured at 5% level of significance and the means were separated using Least Significance Difference (LSD). The results showed that the soil texture of the study area was sandy loam. ZT differed significantly from other TP with higher Bd value of 1.51 Mg m-3, lower porosity (42.7%), and lower moisture content (10.3). ZT also had higher organic carbon (OC), total nitrogen (TN), available phosphorus (AP), exchangeable acidity (0.48 cmol+ kg-1) and bases and most importantly higher CEC (7.5 cmol (+) kg-1) which differed significantly from other tillage practices and the lowest of the most parameters were found in RT. Conclusively, ZT is the best TP to be used by the farmers because of the im- proved physical and chemical parameters and been not only economically sus- tainable but also socially and environmentally friendly.

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