scholarly journals Assessment of Physico-chemical Properties in Some Soils of District Baramulla under Different Land Use Systems

Author(s):  
Sumaira Shafi ◽  
Mushtaq A. Wani ◽  
Shaista Nazir
2020 ◽  
Author(s):  
Yadesa Bato ◽  
Tamrat Bekele ◽  
Sebsebe Demissew

Abstract Background: Soil chemical properties have changed under different land-use systems and soil depth layers either by increasing or decreasing. Hence, scientifically information on the soil chemical properties dynamics under different land-use systems and soil depths are crucial for best land management practices, and to avoiding ecological negative impacts of it for sustainable development. The study aimed to evaluate the soil chemical properties dynamics under different land-use systems and soil depths in the central highlands of Ethiopia. The land-use systems included natural forest, four exotic tree plantation species (Eucalyptus globules, Cupressus lusitanica, Grevillea robusta, and Pinus patula), grassland, grazing land, and cropland. Results: The analysis of variance (ANOVA) for the majority of soil chemical properties of OC, TN, Avial. P, soil pH, EC, CEC, and exchangeable bases (Ca, Mg, K, Na) were showed that significant variations among land-use systems (P<0.0001). The highest mean values of OC (3.49 % DM ), TN ( 0.31 % DM) , Avail.P (31.52 mg/kg of soil ), CEC ( 33.63 meq/100gm soil), Exch. Ca (17.13 cmol(+)/kg soil), Exch. Mg (5.37 cmol(+)/kg soil), and Exch. K ( 3.60 cmol(+)/kg soil) were observed under natural forest than others of land-use systems. The results also showed that the lowest mean values of OC (1.47 % DM), TN (0.13 %DM), soil pH (5.38), CEC (18.98 meq/100gm soil), Exch. Ca (9.93 cmol(+)/kg soil), Exch. K (1.20 cmol(+)/kg soil), and Exch. Na (0.22 cmol(+)/kg soil) were recorded under cropland than other land-use systems. The highest mean values of EC (3.47ds/m), and Exch. Na (0.60 cmol(+)/kg soil) were observed under Eucalyptus globulus plantation forest. The overall mean values of OC, TN, Avail.P, CEC, Exch. Mg, Exch. Ca, Exch. K, and Exch. Na accumulation at the topsoil layer was higher than that of the subsoil layer except for soil pH and EC. Conclusion: In general, the majority of soil chemical properties under cropland and Eucalyptus globulus plantation forest were poorer than the soils subjected to other land-use systems which indicated that changes in land use systems were significantly affected soil chemical properties.


Soil Systems ◽  
2018 ◽  
Vol 2 (4) ◽  
pp. 57 ◽  
Author(s):  
Sudarshan Kharal ◽  
Babu Khanal ◽  
Dinesh Panday

Unscientific land use and cropping techniques have led high soil erosion and degradation of soil quality in the mid-hills of Nepal. To understand the effects of land use systems for selected soil chemical properties in mid-hills, composite soil samples at 0 cm to 20 cm depth were collected from five different land-use systems: Grassland, forest land, upland, lowland, and vegetable farms from Dhading district of Nepal in 2017. Soil samples were analyzed for soil fertility parameters: Soil pH, organic matter (OM), total nitrogen (N), available phosphorus (P), available potassium (K) and its effect due to different land use systems were compared. Results showed that soil pH was neutral in vegetable farms (6.61), whereas the rest of the land-use systems had acidic soils. Soil OM (3.55%) and N (0.18%) content was significantly higher in forest, but the lowest soil OM (1.26%) and N (0.06%) contents were recorded from upland and lowland farms, respectively. Available P was the highest in the vegetable farm (41.07 mg kg−1) and was the lowest in grazing land (2.89 mg kg−1). The upland farm had significantly higher P levels (39.89 mg kg−1) than the lowland farm (9.02 mg kg−1). Available K was the highest in the vegetable farm (130.2 mg kg−1) and lowest in grazing land (36.8 mg kg−1). These results indicated that the land under traditional mixed cereal-based farming had poor soil health compared with adjacent vegetable, grazing, and forest lands among the study area. The variations in soil fertility parameters suggest the immediate need for improvement in soil health of traditional farmlands.


2021 ◽  
Vol 3 (2) ◽  
pp. 65-71
Author(s):  
M. T. Folarin ◽  
A. J. Adeyemo ◽  
G. O. Elumalero ◽  
O. J. Olalekan ◽  
M. O Apenah ◽  
...  

Land is the most important endowment in nature, providing livelihood in both the agricultural and non-agricultural sectors. However, most areas of land previously developed from tropical rainforest have been degraded as a result of land misuse with nutrient mining and soil degradation presently considered as problems in arable farms. Hence, the extent to which land for crop production influences soil properties need to be studied to greater details due to variations in soils by location. The objective of the study is to investigate the effect of agricultural land use systems on the soil physical and chemical properties. Three representative fields with three replicates each which have been in active use for last 5 years were selected from each agricultural land use types: Cultivated (07.31° N 05.12° E 360.0 M), Agroforestry (07.31° N 05.21° E 373.5 M) and Grazing land (07.29° N 05.35° E 355.0 M). Five soil subsamples were collected from the depths of 0-20 and 20 - 40 cm each in a radial sampling. The data was subjected to analysis of variance (ANOVA) using Statistical Analytical System (SAS) and the means were separated using Duncan’s Multiple Range Test (DMRT) at P<0.05 significant level. The mean values of soil chemical properties are highest in the agroforestry land followed by cultivated and then in the grazing land. Grazing land shows the highest bulk density of (1.87 g/cm3), cultivated (1.30 g/cm3) and then agroforestry (1.24 g/cm3) with same trends recorded in particle density across the land use. The soils significantly responded to changes in land use systems through salient soil features which constitute soil properties governing soil fertility and productivity. Such human-induced change is not limited to surface soils but also the subsurface soils and has remarkable implication for ecosystem quality and productivity of the traditional low-external-input agriculture in the study area.


Wetlands ◽  
2021 ◽  
Vol 42 (1) ◽  
Author(s):  
Syrus Cesar P. Decena ◽  
Sarah Villacorta-Parilla ◽  
Arwin O. Arribado ◽  
Dionesio R. Macasait ◽  
Michael S. Arguelles ◽  
...  

2021 ◽  
Author(s):  
Syrus Cesar Decena ◽  
Sarah Villacorta-Parilla ◽  
Arwin Arribado ◽  
Dionesio Macasait ◽  
Michael Arguelles ◽  
...  

Abstract Peatlands are unique wetland ecosystems that provide various ecosystem services such as carbon storage and biogeochemical cycling, however being threatened by anthropogenic activities. The present study was conducted to explore the impact of land use conversion on carbon stocks and peat properties in a tropical peatland in the Leyte Sab-a Basin Peatland (LSBP) in Northeastern Leyte, Philippines. The carbon stocks (aboveground and belowground) and physico-chemical properties of peat soil were compared among wetland forest, grassland and cropland. Land use conversion resulted in the significant reduction of the total aboveground carbon stock. The wetland forest had the highest carbon stocks (38.56 ± 4.58 t ha− 1), and when converted to grassland and cropland, it has resulted to carbon loss of as much as 86.59 and 90.45%, respectively. The belowground root carbon stock was highest in the wetland forest (5.05 ± 0.64 t ha− 1) also while highest peat carbon stock (1 m depth) was observed in the cropland areas (45.28 ± 2.25–61.27 ± 3.07 t ha− 1). However, wetland forests with very deep peat deposits potentially store a significant amount of carbon than in cropland that was characterized by shallower compressed peats. In addition, land use conversion altered the physico-chemical properties of peat such as water content, organic matter, and porosity, and bulk density which all indicated peatland degradation. Finally, the overall result of this study highlights the importance to develop and implement management and conservation plans for LSBP.


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