Assessment of soil quality indicators under different agricultural land uses and topographic aspects in Central Vietnam
Soil quality assessment is valuable for agricultural production. In this research, 155 soil samples at two soil depths were collected from four land use types in an agricultural area of the A Luoi district in the Central Vietnam. Differences of soil organic carbon, total nitrogen in soil and soil pH...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2018-12-01
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| Series: | International Soil and Water Conservation Research |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095633918300947 |
| _version_ | 1827266123152752640 |
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| author | Tung Gia Pham Hung Trong Nguyen Martin Kappas |
| author_facet | Tung Gia Pham Hung Trong Nguyen Martin Kappas |
| author_sort | Tung Gia Pham |
| collection | DOAJ |
| description | Soil quality assessment is valuable for agricultural production. In this research, 155 soil samples at two soil depths were collected from four land use types in an agricultural area of the A Luoi district in the Central Vietnam. Differences of soil organic carbon, total nitrogen in soil and soil pH under different land use types and topographic aspects were compared. Soil organic carbon contents in arable land and plantation forest are higher than those in natural forest and grassland (p < 0.05). Conversely, the total nitrogen in natural forest was significantly lesser in comparison to other land use types. Meanwhile there were no significant differences of the total nitrogen content (p < 0.05) among arable land, plantation forest, and grassland. The soil of grassland, natural and plantation forests land use types were more significantly acidic than those of the soils of the arable land use type. Soil organic carbon and total nitrogen showed a decreasing trend while soil depth increased in all land use types. The soil pH in plantation forest and arable land use types showed no significant change in relation to soil depth. Significant differences were not found in topographic aspects and soil organic carbon content; however, the different changing trends of soil organic carbon content between land use types and aspects were found. The impact of slope, elevation, farming system or soil texture accounted for the differences in these soil indicators under different land use types in the A Luoi district. Keywords: Central Vietnam, Land use type, Hilly area, Soil quality, Topographic aspects |
| first_indexed | 2024-03-07T17:30:07Z |
| format | Article |
| id | doaj.art-61fd69954e6c486d917d937de46bb1ec |
| institution | Directory Open Access Journal |
| issn | 2095-6339 |
| language | English |
| last_indexed | 2025-03-22T04:12:50Z |
| publishDate | 2018-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | International Soil and Water Conservation Research |
| spelling | doaj.art-61fd69954e6c486d917d937de46bb1ec2024-04-28T08:38:39ZengKeAi Communications Co., Ltd.International Soil and Water Conservation Research2095-63392018-12-0164280288Assessment of soil quality indicators under different agricultural land uses and topographic aspects in Central VietnamTung Gia Pham0Hung Trong Nguyen1Martin Kappas2Cartography, GIS and Remote Sensing Department, Göttingen University, George August University of Goettingen, Goldschmidstr. 5, 37077 Goettingen, Germany; University of Agriculture and Forestry, Hue University, Vietnam; Corresponding author at: Cartography, GIS and Remote Sensing Department, Institute of Geography, Georg August University of Goettingen, Goldschmidstr. 5, 37077 Goettingen, Germany.Cartography, GIS and Remote Sensing Department, Göttingen University, George August University of Goettingen, Goldschmidstr. 5, 37077 Goettingen, Germany; Ministry of Natural Resources and Environment, VietnamCartography, GIS and Remote Sensing Department, Göttingen University, George August University of Goettingen, Goldschmidstr. 5, 37077 Goettingen, GermanySoil quality assessment is valuable for agricultural production. In this research, 155 soil samples at two soil depths were collected from four land use types in an agricultural area of the A Luoi district in the Central Vietnam. Differences of soil organic carbon, total nitrogen in soil and soil pH under different land use types and topographic aspects were compared. Soil organic carbon contents in arable land and plantation forest are higher than those in natural forest and grassland (p < 0.05). Conversely, the total nitrogen in natural forest was significantly lesser in comparison to other land use types. Meanwhile there were no significant differences of the total nitrogen content (p < 0.05) among arable land, plantation forest, and grassland. The soil of grassland, natural and plantation forests land use types were more significantly acidic than those of the soils of the arable land use type. Soil organic carbon and total nitrogen showed a decreasing trend while soil depth increased in all land use types. The soil pH in plantation forest and arable land use types showed no significant change in relation to soil depth. Significant differences were not found in topographic aspects and soil organic carbon content; however, the different changing trends of soil organic carbon content between land use types and aspects were found. The impact of slope, elevation, farming system or soil texture accounted for the differences in these soil indicators under different land use types in the A Luoi district. Keywords: Central Vietnam, Land use type, Hilly area, Soil quality, Topographic aspectshttp://www.sciencedirect.com/science/article/pii/S2095633918300947 |
| spellingShingle | Tung Gia Pham Hung Trong Nguyen Martin Kappas Assessment of soil quality indicators under different agricultural land uses and topographic aspects in Central Vietnam International Soil and Water Conservation Research |
| title | Assessment of soil quality indicators under different agricultural land uses and topographic aspects in Central Vietnam |
| title_full | Assessment of soil quality indicators under different agricultural land uses and topographic aspects in Central Vietnam |
| title_fullStr | Assessment of soil quality indicators under different agricultural land uses and topographic aspects in Central Vietnam |
| title_full_unstemmed | Assessment of soil quality indicators under different agricultural land uses and topographic aspects in Central Vietnam |
| title_short | Assessment of soil quality indicators under different agricultural land uses and topographic aspects in Central Vietnam |
| title_sort | assessment of soil quality indicators under different agricultural land uses and topographic aspects in central vietnam |
| url | http://www.sciencedirect.com/science/article/pii/S2095633918300947 |
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