Positive impacts of a cowpea-cassava intercropping system on soil biodiversity in Northern Vietnam (Yen Bai Province)
Agricultural production in Southeast Asia continues to rely on massive use of pesticides and mineral fertilizers, which are readily available at low cost in the region. However, these intensive management practices have resulted in a dramatic reduction in soil biodiversity, leading to a decrease in...
| Autores principales: | , , , , , , |
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| Formato: | Brief |
| Lenguaje: | Inglés |
| Publicado: |
2021
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| Acceso en línea: | https://hdl.handle.net/10568/118126 |
| _version_ | 1855517309276258304 |
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| author | Fouillet, Esther Herrmann, Laetitia Nguyen, Trung Thanh Nguyen, Hai Thy Thang Atieno, Mary Zhong, Shuang Lesueur, Didier |
| author_browse | Atieno, Mary Fouillet, Esther Herrmann, Laetitia Lesueur, Didier Nguyen, Hai Thy Thang Nguyen, Trung Thanh Zhong, Shuang |
| author_facet | Fouillet, Esther Herrmann, Laetitia Nguyen, Trung Thanh Nguyen, Hai Thy Thang Atieno, Mary Zhong, Shuang Lesueur, Didier |
| author_sort | Fouillet, Esther |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Agricultural production in Southeast Asia continues to rely on massive use of pesticides and mineral fertilizers, which are readily available at low cost in the region. However, these intensive management practices have resulted in a dramatic reduction in soil biodiversity, leading to a decrease in soil health, and an increase in dependence on chemical inputs to maintain crop productivity.
Soil organisms, including micro- and macrofauna as well as microbial communities, play key roles in supporting soil health and ecosystem services, such as soil porosity and aggregation, nutrient cycling and crop protection against pests and diseases. Recent initiatives are promoting agroecological practices to mitigate collateral effects of intensive agriculture on soil health.
For instance, the effects of introducing legumes in intercropping systems were assessed in the framework of the Towards an Agroecological Transition in South East Asia (ACTAE) project funded by the French Development Agency (AFD). In Yen Bai province, a mountainous region in Northern Vietnam where cassava (Manihot esculenta) monocropping systems dominate, the introduction of cowpea (Vigna unguiculata L.) as an intercrop positively impacted soil biodiversity, even after a single growing
season. Intercropped plots showed a higher abundance of microfauna, as compared to monocropped areas. Intercropping also resulted in an up to 100% increase in soil macrofauna richness, diversity and evenness indices. Highthroughput sequencing analysis of the microbial community revealed a significant increase in bacterial community richness, while other indices were not affected (diversity, evenness). Fungal communities were not impacted by the introduction of cowpea, suggesting that changes
in fungal communities may occur over a longer period. These results highlighted the high potential of promoting agroecological
practices, such as legume intercropping systems, in restoring and maintaining soil biodiversity in very fragile ecosystems such
as the mountainous regions of Vietnam. |
| format | Brief |
| id | CGSpace118126 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| record_format | dspace |
| spelling | CGSpace1181262025-11-05T11:03:38Z Positive impacts of a cowpea-cassava intercropping system on soil biodiversity in Northern Vietnam (Yen Bai Province) Fouillet, Esther Herrmann, Laetitia Nguyen, Trung Thanh Nguyen, Hai Thy Thang Atieno, Mary Zhong, Shuang Lesueur, Didier intercropping agroecology soil organisms soil quality cultivo intercalado agroecología organismos del suelo Agricultural production in Southeast Asia continues to rely on massive use of pesticides and mineral fertilizers, which are readily available at low cost in the region. However, these intensive management practices have resulted in a dramatic reduction in soil biodiversity, leading to a decrease in soil health, and an increase in dependence on chemical inputs to maintain crop productivity. Soil organisms, including micro- and macrofauna as well as microbial communities, play key roles in supporting soil health and ecosystem services, such as soil porosity and aggregation, nutrient cycling and crop protection against pests and diseases. Recent initiatives are promoting agroecological practices to mitigate collateral effects of intensive agriculture on soil health. For instance, the effects of introducing legumes in intercropping systems were assessed in the framework of the Towards an Agroecological Transition in South East Asia (ACTAE) project funded by the French Development Agency (AFD). In Yen Bai province, a mountainous region in Northern Vietnam where cassava (Manihot esculenta) monocropping systems dominate, the introduction of cowpea (Vigna unguiculata L.) as an intercrop positively impacted soil biodiversity, even after a single growing season. Intercropped plots showed a higher abundance of microfauna, as compared to monocropped areas. Intercropping also resulted in an up to 100% increase in soil macrofauna richness, diversity and evenness indices. Highthroughput sequencing analysis of the microbial community revealed a significant increase in bacterial community richness, while other indices were not affected (diversity, evenness). Fungal communities were not impacted by the introduction of cowpea, suggesting that changes in fungal communities may occur over a longer period. These results highlighted the high potential of promoting agroecological practices, such as legume intercropping systems, in restoring and maintaining soil biodiversity in very fragile ecosystems such as the mountainous regions of Vietnam. 2021-09-26 2022-02-15T08:45:45Z 2022-02-15T08:45:45Z Brief https://hdl.handle.net/10568/118126 en https://hdl.handle.net/10568/115102 Open Access application/pdf Fouillet, E.; Herrmann, L.; Nguyen, T.T.; Nguyen, H.T.T.; Atieno, M.; Zhong, S.; Lesueur, D. (2021) Positive impacts of a cowpea-cassava intercropping system on soil biodiversity in Northern Vietnam (Yen Bai Province). In: Atta Krah, K. (et al.) Agroecological transformation for sustainable food systems : Insight on France-CGIAR research. Les dossiers d'Agropolis International. Special Partnership Issue, n° 26. Montpellier (France): Agropolis International. p. 18 ISSN: 1628-4259 |
| spellingShingle | intercropping agroecology soil organisms soil quality cultivo intercalado agroecología organismos del suelo Fouillet, Esther Herrmann, Laetitia Nguyen, Trung Thanh Nguyen, Hai Thy Thang Atieno, Mary Zhong, Shuang Lesueur, Didier Positive impacts of a cowpea-cassava intercropping system on soil biodiversity in Northern Vietnam (Yen Bai Province) |
| title | Positive impacts of a cowpea-cassava intercropping system on soil biodiversity in Northern Vietnam (Yen Bai Province) |
| title_full | Positive impacts of a cowpea-cassava intercropping system on soil biodiversity in Northern Vietnam (Yen Bai Province) |
| title_fullStr | Positive impacts of a cowpea-cassava intercropping system on soil biodiversity in Northern Vietnam (Yen Bai Province) |
| title_full_unstemmed | Positive impacts of a cowpea-cassava intercropping system on soil biodiversity in Northern Vietnam (Yen Bai Province) |
| title_short | Positive impacts of a cowpea-cassava intercropping system on soil biodiversity in Northern Vietnam (Yen Bai Province) |
| title_sort | positive impacts of a cowpea cassava intercropping system on soil biodiversity in northern vietnam yen bai province |
| topic | intercropping agroecology soil organisms soil quality cultivo intercalado agroecología organismos del suelo |
| url | https://hdl.handle.net/10568/118126 |
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