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Evaluation of Physicochemical Properties of Sandy-Textured Soils under Smallholder Agricultural Land Use Practices in Sarawak, East Malaysia

Abstract:
A study was conducted in the Sabal area, Sarawak, to evaluate the physicochemical properties of sandy-textured soils under smallholder agricultural land uses. Study sites were established under rubber, oil palm, and pepper land uses, in comparison to the adjacent secondary forests. The sandy-textured soils underlain in all agricultural land uses are of Spodosols, based on USDA Soil Taxonomy. The soil properties under secondary forests were strongly acidic with poor nutrient contents. Despite higher bulk density in oil palm farmlands, soil properties in rubber and oil palm land uses showed little variation to those in secondary forests. Conversely, soils under pepper land uses were less acidic with higher nutrient contents at the surface layer, especially P. In addition, soils in the pepper land uses were more compact due to human trampling effects from regular farm works at a localized area. Positive correlations were observed between soil total C and soil total N, soil exchangeable K, soil sum of bases, and soil effective CEC, suggesting that soil total C is the determinant of soil fertility under the agricultural land uses. Meanwhile, insufficient K input in oil palm land uses was observed from the partial nutrient balances estimation. In contrast, P and K did not remain in the soils under pepper land use, although the fertilizers application by the farmers was beyond the crop uptake and removal (harvesting). Because of the siliceous sandy nature (low clay contents) of Spodosols, they are poor in nutrient retention capacity. Hence, maintaining ample supply of organic C is crucial to sustain the productivity and fertility of sandy-textured soils, especially when the litterfall layers covering the E horizon were removed for oil palm and pepper cultivation.
Author Listing: Soo Ying Ho;Mohd Effendi Bin Wasli;Mugunthan Perumal
Volume: 2019
Pages: 1-14
DOI: 10.1155/2019/7685451
Language: English
Journal: Applied and Environmental Soil Science

Applied and Environmental Soil Science

影响因子:2.1
是否综述期刊:否
是否OA:是
是否预警:不在预警名单内
发行时间:-
ISSN:1687-7667
发刊频率:-
收录数据库:ESCI/Scopus收录/DOAJ开放期刊
出版国家/地区:United Kingdom
出版社:Hindawi

期刊介绍

年发文量 42
国人发稿量 -
国人发文占比 0%
自引率 4.8%
平均录取率 -
平均审稿周期 18 Weeks
版面费 -
偏重研究方向 Earth and Planetary Sciences-Earth-Surface Processes
期刊官网 https://www.hindawi.com/journals/aess
投稿链接 -

质量指标占比

研究类文章占比 OA被引用占比 撤稿占比 出版后修正文章占比
95.24% 100.00% - -

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年发文量
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预警情况

时间 预警情况
2024年02月发布的2024版 不在预警名单中
2023年01月发布的2023版 不在预警名单中
2021年12月发布的2021版 不在预警名单中
2020年12月发布的2020版 不在预警名单中

JCR分区 WOS分区等级:Q3区

版本 按学科 分区
WOS期刊SCI分区
(2021-2022年最新版)
SOIL SCIENCE Q3

中科院分区

版本 大类学科 小类学科 Top期刊 综述期刊
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