scholarly journals Study of land suitability for rubber and cashew in the derived savanna zone of Edo State, Nigeria

2021 ◽  
Vol 6 (3) ◽  
pp. 156
Author(s):  
Lucky Agbogun ◽  
Aigboghosa Samson Umweni ◽  
Henry Kadiri ◽  
Faith Ehinomhen Okunsebor

This study attempted to assess the soil suitability in the derived savanna zone of Edo State, Nigeria for the cultivation of some tree crops. The research specifically aimed to evaluate soil suitability for cashew and rubber supported by suitability maps for both crops. In terms of land suitability evaluation, mapping units 1 and 2, with an area coverage of 27.4 ha of the entire research area (100 ha) were found to be marginally suitable (S3) for rubber cultivation but moderately suitable (S2) for cashew. Mapping unit 3, with area coverage of 38 ha was found to be currently not suitable (N1) for rubber but marginally suitable (S3) for cashew cultivation. Mapping unit 4 representing area coverage of 34.7 ha was found to be permanently not suitable (N2) for rubber cultivation but marginally suitable (S3) for cashew. Thus, technically, rubber can only be cultivated in that land at marginal level with an expected productivity of 27.4 ha (27.4 %). Cashew can be cultivated at moderate and marginal levels with an expected yield of 27.4 ha (27.4 %) and 72.6 ha (72.6 %), respectively, of the total land area. Thus, the preferred crop for the studied is cashew. It is recommended that for any significant investment in cultivation of this crop, the priority is the moderate levels with an expected productivity of 27.4 ha or 27.4 % of total land area.

2020 ◽  
Vol 8 (1) ◽  
pp. 149-160
Author(s):  
Mei Ridayanti ◽  
Mochtar Lutfi Rayes ◽  
Christanti Agustina

Malang Regency has a large area of dry land and currently being developed as a center for food crops, especially corn. Corn production in Malang Regency has not provided high productivity, one of which is in Wagir Regency. This study aims to determine the actual land suitability class, determine the characteristics of the land that affects the productivity of corn, determine the actual productivity class of corn, and develop new land suitability criteria using the boundary line method. This research was conducted in May - September 2019 in Wagir District, Malang, using a physiographic survey method based on the Land Mapping Unit. Soil samples were taken at a depth of 0-120 cm (minipit and drilling) at each observation points (42 points) and analyzed in the laboratory (texture, pH, CEC, C-Organic, BS, N-total, P2O5, Potassium, Ca, Mg, and Na). The determination of land suitability class is carried out using the SPKL (Sistem penilaian kesesuaian lahan) application and the modification of the criteria is carried out using the boundary line method. The results of the land suitability evaluation according to the criteria of Ritung et al. (2011) in Wagir District, Malang Regency, included in class S3 and N, with limiting factors in rainfall, Base Saturation, pH, C-Organic, N-total, P2O5, Potassium, slope and erosion hazard. Stepwise analysis result showed that slope and air temperature determined corn productivity in research area. Boundary lines analysis gave results that modified suitability classified as S3 and N which is the same category as actual suitability classes.


2020 ◽  
pp. 31-39
Author(s):  
Lucky Agbogun ◽  
Umweni A.S. ◽  
Kadiri O.H ◽  
Faith Okunsebor

This study was carried out at Uzanu Community in Etsako East Local Government Area of Edo State to identify some of the major soils of the project area, through a soil mapping process. The methodology involved mapping of the soils of a 100 hectare land using the rigid grid soil survey method at a detailed scale. Four mapping units were delineated from the ten transects of 100 m apart and 100 m interval examination points along transects which gave a total of 84 auger points. Four representative pedons were sunk, described and sampled. Soil samples were analyzed using standard methods. Soils were classified according to USDA soil taxonomy System of Soil Classification. Series classification was locally defined using guidelines provided by Smyth and Montgomery. The results showed that Pedon 1 representing a mapping unit with area coverage of 14.2 hectares or 14.2 % of the entire research area was classified as Loamy Isohyperthermic Typic Plinthudult and locally as Origo series. The soils of mapping unit two, covering an area of 13.2 hectares or 13.2 % were classified as Loamy Isohyperthermic Ruptic-Ultic-Dystrudept and locally as Origo series. Pedon three soils, covering an area of 38 hectares or 38 % were classified as Loamy Isohyperthermic Typic Plinthudult and locally as Origo series while the soils of mapping unit four represented by pedon four, covering an area of 34.7 hectares or 34.7 % were classified as Coarse Loamy Isohyperthermic Ruptic-Ultic-Dystrudept and locally as Ekiti series.


2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Johnnedy Gumanti ◽  
Edy Sutriyono ◽  
Salni Salni ◽  
Harnani Harnani

This study identifies and analyzes the biophysical and environmental aspects of the environment, potentials and constraints, and then evaluates the post-mining reclamation land use that will be used for Other Use Areas (APL), the Residential Infrastructure Facility. Based on the Mining Closure Plan (RPT) on the utilization of former coal mine land at Air Laya Tanjung Enim, Klawas reclamation land use plan for Resettlement Facility and Zoning Infrastructures (Zone 2) while Suban reclamation land use plan for Productive Research area. Analysis in this research are scoring, SWOT and map overlay such as area function analysis and land suitability analysis based on physical condition of existing land. The result of this research is land suitability level for Residential Infrastructure Facility in Klawas, suitable land equal to 12% or 38 ha while 98% unfit or 258,7 ha from total area of 277,8 ha. Terms of land suitability in Klawas research area including Marginal (S3) with total scores of 80. where climate condition support with average temperature 24oC and rainfall 23,93 - 27,87 mm / day, slope of flat slope approaching water level river 0 - 3%, complex geological structure there are anticline in the form of fault and fracture, soil type Alluvial and Latosol, there are many aquifer with shallow depth to medium, there is vulnerability of geological disaster in the form of mass movement of soil / rock, flood, erosion and radiation exposure TENORM of moderate intensity. The results of land use evaluation for the Klawas reclamation area are more suitable for Freshwater Fishery Cultivation area than for Residential Infrastructure Facility area. Land tenure rate for Residential Infrastructure Facility in Suban, suitable land equal to 76 % or 237 ha while unsuitable 24% or 105 ha of total area of 342 ha. Conditions of land suitability in Suban's research area include Match (S2) with a total scores of 130. Climatic conditions support the average air temperature of 24°C and rainfall of 23.93 - 27.87 mm / day, the slope of flat slope is 3 - 8% there is no anticline structure in the form of fault, Andosol and Podsolic soil types, there is a shallow shallow depth of aquifer, no geological disaster vulnerability and low intensity TENORM radiation exposure. The results of the land-use evaluation for the Suban reclamation area are more suitable for the Residential Infrastructure area rather than for Productive Research area.


2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Johnnedy Gumanti ◽  
Edy Sutriyono ◽  
Salni Salni ◽  
Harnani Harnani

This study identifies and analyzes the biophysical and environmental aspects of the environment, potentials and constraints, and then evaluates the post-mining reclamation land use that will be used for Other Use Areas (APL), the Residential Infrastructure Facility. Based on the Mining Closure Plan (RPT) on the utilization of former coal mine land at Air Laya Tanjung Enim, Klawas reclamation land use plan for Resettlement Facility and Zoning Infrastructures (Zone 2) while Suban reclamation land use plan for Productive Research area. Analysis in this research are scoring, SWOT and map overlay such as area function analysis and land suitability analysis based on physical condition of existing land. The result of this research is land suitability level for Residential Infrastructure Facility in Klawas, suitable land equal to 12% or 38 ha while 98% unfit or 258,7 ha from total area of 277,8 ha. Terms of land suitability in Klawas research area including Marginal (S3) with total scores of 80. where climate condition support with average temperature 24oC and rainfall 23,93 - 27,87 mm / day, slope of flat slope approaching water level river 0 - 3%, complex geological structure there are anticline in the form of fault and fracture, soil type Alluvial and Latosol, there are many aquifer with shallow depth to medium, there is vulnerability of geological disaster in the form of mass movement of soil / rock, flood, erosion and radiation exposure TENORM of moderate intensity. The results of land use evaluation for the Klawas reclamation area are more suitable for Freshwater Fishery Cultivation area than for Residential Infrastructure Facility area. Land tenure rate for Residential Infrastructure Facility in Suban, suitable land equal to 76 % or 237 ha while unsuitable 24% or 105 ha of total area of 342 ha. Conditions of land suitability in Suban's research area include Match (S2) with a total scores of 130. Climatic conditions support the average air temperature of 24°C and rainfall of 23.93 - 27.87 mm / day, the slope of flat slope is 3 - 8% there is no anticline structure in the form of fault, Andosol and Podsolic soil types, there is a shallow shallow depth of aquifer, no geological disaster vulnerability and low intensity TENORM radiation exposure. The results of the land-use evaluation for the Suban reclamation area are more suitable for the Residential Infrastructure area rather than for Productive Research area.


2020 ◽  
Vol 198 ◽  
pp. 04026
Author(s):  
Liyan Wang ◽  
Chao Chen ◽  
Kai Wang

It is an effective method to study the value change of ecological services based on land use and cover change information. This paper analyzed the land use and cover change information in the research area, which is based on the remote sensing images and social statistics data of 2005, 2010, and 2015, and then, quantitative estimation of the ecosystem service value was performed. Yangtze-Huaihe river basin, China is a fragile ecological area, which is selected as the research area. During 2005-2015, the area of cultivated land and construction land was the main land use types in the study area, the land use and cover change in the study area were obvious, which was characterized by the increasing of construction land area and the decreasing of cultivated land area, and the total ecosystem services value in the research area has been decreasing continuously, the value from 34.376 billion yuan in 2005 to 26.161 billion yuan in 2015.


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