Resilience Assessment of Lowland Plantations Using an Ecosystem Modeling Approach
As afforestation programs of former farmlands take hold in Taiwan to achieve a variety of ecological and socio-economic values, it is becoming necessary to define best forest management. Hence, we simulated mixed stands of Cinnamomum camphora and Fraxinus griffithii planted through a gradient of soi...
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| Language: | English |
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MDPI AG
2015-03-01
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| Series: | Sustainability |
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| Online Access: | http://www.mdpi.com/2071-1050/7/4/3801 |
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doaj-041620abd2d14a708bbade61a8d9a7222020-11-25T01:51:50ZengMDPI AGSustainability2071-10502015-03-01743801382210.3390/su7043801su7043801Resilience Assessment of Lowland Plantations Using an Ecosystem Modeling ApproachChia-Hsin Wu0Yueh-Hsin Lo1Juan A. Blanco2Shih-Chieh Chang3Senior Vocational High School, National Taitung Junior College, 95045 Taitung, TaiwanDepartamento Ciencias del Medio Natural, Universidad Pública de Navarra, Campus de Arrosadía, Pamplona, Navarra 31006, SpainDepartamento Ciencias del Medio Natural, Universidad Pública de Navarra, Campus de Arrosadía, Pamplona, Navarra 31006, SpainDepartment of Natural Resources and Environmental Studies, National Dong Hwa University, 97401 Hualien, TaiwanAs afforestation programs of former farmlands take hold in Taiwan to achieve a variety of ecological and socio-economic values, it is becoming necessary to define best forest management. Hence, we simulated mixed stands of Cinnamomum camphora and Fraxinus griffithii planted through a gradient of soil fertility and varying camphor/ash density ratios, but maintaining a fixed total stand density of 1500 trees ha−1. Total stand productivity was slightly lower in mixed stands than the combination of both monocultures in rich and poor sites. Maximum negative yield surpluses for 50-year old stands were 7 Mg ha−1 and 6 Mg ha−1 for rich and poor sites with a 1:1 camphor laurel/ash ratios. Maximum stand woody biomass in rich sites was reached in camphor laurel monocultures (120 Mg ha−1) and in poor sites for Himalayan ash monocultures (58 Mg ha−1). However, for medium-quality sites, a small yield surplus (11 Mg ha−1) was estimated coinciding with a maximum stand woody biomass of 95 Mg ha−1 for a 1:1 camphor laurel/ash density ratio. From an ecological resilience point of view, rotation length was more important than stand composition. Long rotations (100 years) could improve soil conditions in poor sites. In rich sites, short rotations (50 years) should be avoided to reduce risks or fertility loss.http://www.mdpi.com/2071-1050/7/4/3801mixed forestsartificial forestecological modelingresilienceecological sustainabilitycamphor laurelHimalayan ashFORECAST model |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Chia-Hsin Wu Yueh-Hsin Lo Juan A. Blanco Shih-Chieh Chang |
| spellingShingle |
Chia-Hsin Wu Yueh-Hsin Lo Juan A. Blanco Shih-Chieh Chang Resilience Assessment of Lowland Plantations Using an Ecosystem Modeling Approach Sustainability mixed forests artificial forest ecological modeling resilience ecological sustainability camphor laurel Himalayan ash FORECAST model |
| author_facet |
Chia-Hsin Wu Yueh-Hsin Lo Juan A. Blanco Shih-Chieh Chang |
| author_sort |
Chia-Hsin Wu |
| title |
Resilience Assessment of Lowland Plantations Using an Ecosystem Modeling Approach |
| title_short |
Resilience Assessment of Lowland Plantations Using an Ecosystem Modeling Approach |
| title_full |
Resilience Assessment of Lowland Plantations Using an Ecosystem Modeling Approach |
| title_fullStr |
Resilience Assessment of Lowland Plantations Using an Ecosystem Modeling Approach |
| title_full_unstemmed |
Resilience Assessment of Lowland Plantations Using an Ecosystem Modeling Approach |
| title_sort |
resilience assessment of lowland plantations using an ecosystem modeling approach |
| publisher |
MDPI AG |
| series |
Sustainability |
| issn |
2071-1050 |
| publishDate |
2015-03-01 |
| description |
As afforestation programs of former farmlands take hold in Taiwan to achieve a variety of ecological and socio-economic values, it is becoming necessary to define best forest management. Hence, we simulated mixed stands of Cinnamomum camphora and Fraxinus griffithii planted through a gradient of soil fertility and varying camphor/ash density ratios, but maintaining a fixed total stand density of 1500 trees ha−1. Total stand productivity was slightly lower in mixed stands than the combination of both monocultures in rich and poor sites. Maximum negative yield surpluses for 50-year old stands were 7 Mg ha−1 and 6 Mg ha−1 for rich and poor sites with a 1:1 camphor laurel/ash ratios. Maximum stand woody biomass in rich sites was reached in camphor laurel monocultures (120 Mg ha−1) and in poor sites for Himalayan ash monocultures (58 Mg ha−1). However, for medium-quality sites, a small yield surplus (11 Mg ha−1) was estimated coinciding with a maximum stand woody biomass of 95 Mg ha−1 for a 1:1 camphor laurel/ash density ratio. From an ecological resilience point of view, rotation length was more important than stand composition. Long rotations (100 years) could improve soil conditions in poor sites. In rich sites, short rotations (50 years) should be avoided to reduce risks or fertility loss. |
| topic |
mixed forests artificial forest ecological modeling resilience ecological sustainability camphor laurel Himalayan ash FORECAST model |
| url |
http://www.mdpi.com/2071-1050/7/4/3801 |
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