scholarly journals Toposequent Effect on Soil Morphology and Classification of Ultisol Soil in the Ayer Hitam Forest Reserve, Peninsular Malaysia

2021 ◽  
Vol 9 (2) ◽  
pp. 202
Author(s):  
Haidar Fari Aditya ◽  
Seca Gandaseca ◽  
Mochtar Lutfi Rayes ◽  
Daljit Singh Karam
Keyword(s):  
Land Use ◽  
Forest Soil ◽  
Forest Soils ◽  
Peninsular Malaysia ◽  
Practice Research ◽  
Economic Damage ◽  
Soil Productivity ◽  
Intensive Management ◽  
Soil Morphology ◽  
Forest Reserve

Morphology in forest soils has developed over a long time due to the non-intensive management of forest soils. Damage to forest soil occurs when there is logging activity, fire, or land use change. Some forest was used as productive land for example agroforestry and forest production. As with landuse in agriculture, intensive management of forests can also reduce soil productivity. Inaccuracy forest land use would cause environmental or economic damage, so basic soil management data in forest areas is needed. However, the soil morphology of the Ayer Hitam Forest Reserve (AHFR) in  Malaysiahas never been observed. The objective of this study is to assess the soil characteristic and soil morphological properties of theAHFR.  Studying the characteristics of soil morphology in toposequent conditions is necessary to find out the differences in soil from different heights and the effects of erosion, transportation, and deposition on the soil. This study was conducted in the AHFR, Puchong, Selangor Darul Ehsan, Peninsular Malaysia. Mapping of the area under investigation was carried out by conventional soil survey techniques with a physiographic approach using maps with a scale of 1:30,000. The results showed that AHFRhas some different soil morphological characteristics and classification in subgroupamong five different slope positions with similar soil order, which is a Ultisol soil. The soil in the AHFRis formed from highly weathered soil due to high rainfall in this location.The results of this study are important for soil development, identification management, and land use priority such as erosion control on steep-slope forest areas, regeneration and reforestation, and it can also be used for forest education, practice, research, and training activities.Keywords: Ayer Hitam Forest Reserve, forest soil, soil morphology, toposequent, Ultisol soil

scholarly journals Introduction and Spread of the Invasive Alien Species Ageratina altissima in a Disturbed Forest Ecosystem

2021 ◽  
Vol 13 (11) ◽  
pp. 6152
Author(s):  
Eunyoung Kim ◽  
Jaeyong Choi ◽  
Wonkyong Song
Keyword(s):  
Land Use ◽  
South Korea ◽  
Alien Species ◽  
Invasive Alien Species ◽  
Management Policy ◽  
Economic Damage ◽  
Forest Edges ◽  
Forest Interior ◽  
Lower Elevation ◽  
Canopy Area

Invasive alien species (IAS) not only displace nearby indigenous plants and lead to habitat simplification but also cause severe economic damage by invading arable lands. IAS invasion processes involve external forces such as species characteristics, IAS assemblage traits, environmental conditions, and inter-species interactions. In this study, we analyzed the invasion processes associated with the introduction and spread of Ageratina altissima, a representative invasive plant species in South Korea. We investigated 197 vegetation quadrats (2 × 20 m) in regions bordering 47 forests in southern Seoul and Gyeonggi-do, South Korea. A total of 23 environmental variables were considered, which encompassed vegetation, topography, land use, and landscape ecology indices. The model was divided into an edge and an interior model and analyzed using logistic regression and a decision tree (DT) model. The occurrence of Ageratina altissima was confirmed in 61 sites out of a total of 197. According to our analysis, Ageratina altissima easily invaded forest edges with low density. The likelihood of its occurrence increased with lower elevation and gentler slope. In contrast, the spread of Ageratina altissima in the forest interior, especially based on seed spread and permeability, was favored by a lower elevation and gentler slopes. The analysis of Ageratina altissima settlement processes in forest edges coupled with the DT model demonstrated that land characteristics, such as the proximity to urbanized areas and the number of shrub and tree species, play a pivotal role in IAS settlement. In the forest interior, Ageratina altissima did not occur in 68 of the 71 sites where the soil drainage was under 2.5%, and it was confirmed that the tree canopy area had a significant impact on forest spread. Based on these results, it can be assumed that Ageratina altissima has spread in South Korean forests in much the same way as other naturalized species. Therefore, vegetation management strategies for naturalized species should be developed in parallel with land use management policy in regions surrounding forest edges to successfully manage and control Ageratina altissima invasion.

scholarly journals Notes on the Hoya (Apocynaceae, Asclepiadoideae) from Pergau Forest Reserve, Kelantan, Peninsular Malaysia

2020 ◽  
Vol 549 ◽  
pp. 012031
Author(s):  
Rahmad Zakaria ◽  
Azim Rabbani ◽  
Syed Mohd Edhzam Syed Hamzah ◽  
Zulhazman Hamzah ◽  
Muhammad Faizal
Keyword(s):  
Peninsular Malaysia ◽  
Forest Reserve

Historical land use pattern affects the chemistry of forest soils in the Ethiopian highlands

Geoderma ◽  
2004 ◽  
Vol 118 (3-4) ◽  
pp. 149-165 ◽  
Author(s):  
Zewdu Eshetu ◽  
Reiner Giesler ◽  
Peter Högberg
Keyword(s):  
Land Use ◽  
Forest Soils ◽  
Land Use Pattern ◽  
Ethiopian Highlands ◽  
Historical Land Use ◽  
Use Pattern

Impacts of land‐use changes on soil fertility in Okomu Forest Reserve, Southern Nigeria

2020 ◽  
Author(s):  
Glory O. Enaruvbe ◽  
Afolabi O. Osewole ◽  
Ozien P. Mamudu ◽  
Jesús Rodrigo‐Comino
Keyword(s):  
Land Use ◽  
Soil Fertility ◽  
Land Use Changes ◽  
Forest Reserve ◽  
Southern Nigeria

METHODICAL BASES OF AN ESTIMATION OF AGRICULTURAL LAND USING EFFICIENCY

2019 ◽  
Vol 4 (3) ◽  
pp. 237-244
Author(s):  
Mikhailo KOBCHENKO
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Practical Importance ◽  
Economic Damage ◽  
Dialectical Approach ◽  
Methodical Approach ◽  
Analysis And Synthesis ◽  
Scientific Principles ◽  
Definition Of ◽  
Land Using

Introduction. The purpose of this article is to define methodological grounds of assessment of agricultural land using efficiency. The article is devoted to definition of the indicators system of land using efficiency. Methods of research. The solution of the tasks in the article is carried out with the help of such scientific and special research methods as: analysis and synthesis, systematization and generalization, the dialectical approach. Results. The structural balance between cost of land and production resources has been investigated, which leads to the need of many alternatives for the purpose and use of the respective territories on the basis of the modern system of land using efficiency assessment when determining the benefits of land resources using for agricultural production. Originality. It has been proved that to create and enforce a uniform indicators system of land using efficiency is necessary to determine all the factors that affect land use, to reflect the degree and type of each factor influence using the indicators of efficiency of the land use. Indicators of economic efficiency of land using and the intensity of land use are systemized. Practical importance. The methodical approach of agricultural lands using evaluation in the following areas has been justifed in the article: completeness of land use, rational land use, the level of land use intensity, efficient land use. The methodical approach has been presented to the calculation of potential losses from specific land uses in specific circumstances. It is proposed to assess the land using efficiency on the basis of indicators calculations of environmental and economic damage. Basic scientific principles can be used in the practice of agricultural enterprises. Keywords: management, methodological bases, evaluation, efficiency, and agricultural land use.

scholarly journals Application of remote sensing and GIS in land use/land cover mapping and change detection in Shasha forest reserve, Nigeria

2014 ◽  
Vol XL-8 ◽  
pp. 613-616 ◽  
Author(s):  
O. S. Olokeogun ◽  
K. Iyiola ◽  
O. F. Iyiola
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Land Cover ◽  
Change Detection ◽  
Sustainable Forest Management ◽  
Cost Effective ◽  
Remote Sensing And Gis ◽  
Clear Understanding ◽  
Forest Reserve ◽  
Landsat Satellite

Mapping of LULC and change detection using remote sensing and GIS techniques is a cost effective method of obtaining a clear understanding of the land cover alteration processes due to land use change and their consequences. This research focused on assessing landscape transformation in Shasha Forest Reserve, over an 18 year period. LANDSAT Satellite imageries (of 30 m resolution) covering the area at two epochs were characterized into five classes (Water Body, Forest Reserve, Built up Area, Vegetation, and Farmland) and classification performs with maximum likelihood algorithm, which resulted in the classes of each land use. <br><br> The result of the comparison of the two classified images showed that vegetation (degraded forest) has increased by 30.96 %, farmland cover increased by 22.82 % and built up area by 3.09 %. Forest reserve however, has decreased significantly by 46.12 % during the period. <br><br> This research highlights the increasing rate of modification of forest ecosystem by anthropogebic activities and the need to apprehend the situation to ensure sustainable forest management.

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