| Journal Article |
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| Article Title | Earthworm Diversity, Forest Conversion and Agroforestry in Quang Nam Province, Vietnam | | Author | Rachmat Mulia, Sam Van Hoang, Van Mai Dinh, Ngoc Bich Thi Duong, Anh Duc Nguyen, Dang Hai Lam, Duyen Thu Thi Hoang and Meine van Noordwijk | | Year | 2021 | | Journal Title | Land | | Volume | 10 | | Issue | 36 | | Pages | 1-19 | | Call Number | JA00768-21 |
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| Abstract: |
| The conversion of natural forests to different land uses still occurs in various parts of Southeast Asia with poor records of impact on ecosystem services and biodiversity. We quantified such impacts on earthworm diversity in two communes of Quang Nam province, Vietnam. Both communes are situated within buffer zones of a nature reserve where remaining natural forests are under threat of continued conversion. We identified 25 different earthworm species, out of which 21 were found in natural forests, 15 in agroforestry, 14 in planted forests, and seven each in annual croplands and home gardens. Out of the six species that were omnipresent inhabitants of all observed habitats, Pontoscolex corethrurus largely dominated habitats with intensive anthropogenic activities but was rare in natural forests. Natural and regenerated forests had a much denser earthworm population in the top 10 cm of soil rather than in deeper soil layers. We conclude that the conversion of natural forests into different land uses has reduced earthworm diversity which can substantially affect soil health and ecosystem functions in the two communes. Protection of the remaining natural forests is urgent, while the promotion of a tree-based farming system such as agroforestry can reconcile earthworm conservation and local livelihoods. |
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