Water-use efficiency of tree species following calcium and phosphorus application on an abandoned pasture, central Amazonia, Brazil
This research represents one of the first studies in Amazonia to examine soil moisture and water-use efficiency (WUE) in secondary forest (SF) vegetation regrowing on abandoned pastures subjected to reduced nutrient constraints via a nutrient addition experiment. Extensive forested areas (about 80%...
| Autor principal: | Silva, Carlos Eduardo Moura da |
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| Outros Autores: | Gonçalves, José Francisco Carvalho de, Feldpausch, Ted R. |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Environmental and Experimental Botany
2020
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https://repositorio.inpa.gov.br/handle/1/18519 |
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oai:repositorio:1-18519 |
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oai:repositorio:1-18519 Water-use efficiency of tree species following calcium and phosphorus application on an abandoned pasture, central Amazonia, Brazil Silva, Carlos Eduardo Moura da Gonçalves, José Francisco Carvalho de Feldpausch, Ted R. Abandoned Land Calcium Colonization Nutrient Limitation Pasture Phosphorus Photosynthesis Regrowth Secondary Forest Soil Degradation Soil Moisture Tree Water Availability Water Use Efficiency Amazonia Brasil South America Bellucia Vismia Vismia Japurensis This research represents one of the first studies in Amazonia to examine soil moisture and water-use efficiency (WUE) in secondary forest (SF) vegetation regrowing on abandoned pastures subjected to reduced nutrient constraints via a nutrient addition experiment. Extensive forested areas (about 80% of deforestation) have been converted to pastures in Amazonia, which were later abandoned following soil degradation and reduction in grass productivity. Colonization of these areas proceeds through species adapted to adverse edaphic conditions, such as low soil nutrients. Yet there is little data from such environments showing the interaction of soil nutrients and water availability on plant physiological processes. The objective of this study was to test whether three common SF tree species have positive physiological responses, e.g. increased photosynthesis and water-use efficiency, when nutrient limitations are relaxed through fertilization. The experiment was conducted on an abandoned pasture in central Amazonia with 6-year-old secondary vegetation following the application of four treatments: control; +phosphorus (P); +phosphorus and lime (P + Ca); and +phosphorus, lime and gypsum (P + Ca + G). The control had higher mean soil moisture at 140 and 180 cm depth at the end of the dry season, indicating that the treatment plots responded positively to fertilizer additions by taking up additional water. Trees of Vismia japurensis and Bellucia grossularioides growing on the fertilized plots had the highest net photosynthesis rates (A) (18.7 and 20.4 μmol m-2 s-1, respectively). The three species utilized different strategies with regard to physiological and nutritional response, with V. japurensis, regardless of treatment, using these limiting resources most efficiently to colonize abandoned pastures. Trees growing on the P + Ca but not +P alone plots increased A rates, indicating that Ca is an important limiting nutrient in post-pasture secondary succession. The addition of Ca as ash by burning primary and secondary vegetation could explain the rapid growth and dominance of V. japurensis in abandoned pasture areas in central Amazonia. The efficiency of Vismia to use limiting resources could lead to a restructuring of SF and altered rates of stand-level productivity. © 2008 Elsevier B.V. All rights reserved. 2020-06-15T22:02:01Z 2020-06-15T22:02:01Z 2008 Artigo https://repositorio.inpa.gov.br/handle/1/18519 10.1016/j.envexpbot.2008.03.001 en Volume 64, Número 2, Pags. 189-195 Restrito Environmental and Experimental Botany |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Abandoned Land Calcium Colonization Nutrient Limitation Pasture Phosphorus Photosynthesis Regrowth Secondary Forest Soil Degradation Soil Moisture Tree Water Availability Water Use Efficiency Amazonia Brasil South America Bellucia Vismia Vismia Japurensis |
| spellingShingle |
Abandoned Land Calcium Colonization Nutrient Limitation Pasture Phosphorus Photosynthesis Regrowth Secondary Forest Soil Degradation Soil Moisture Tree Water Availability Water Use Efficiency Amazonia Brasil South America Bellucia Vismia Vismia Japurensis Silva, Carlos Eduardo Moura da Water-use efficiency of tree species following calcium and phosphorus application on an abandoned pasture, central Amazonia, Brazil |
| topic_facet |
Abandoned Land Calcium Colonization Nutrient Limitation Pasture Phosphorus Photosynthesis Regrowth Secondary Forest Soil Degradation Soil Moisture Tree Water Availability Water Use Efficiency Amazonia Brasil South America Bellucia Vismia Vismia Japurensis |
| description |
This research represents one of the first studies in Amazonia to examine soil moisture and water-use efficiency (WUE) in secondary forest (SF) vegetation regrowing on abandoned pastures subjected to reduced nutrient constraints via a nutrient addition experiment. Extensive forested areas (about 80% of deforestation) have been converted to pastures in Amazonia, which were later abandoned following soil degradation and reduction in grass productivity. Colonization of these areas proceeds through species adapted to adverse edaphic conditions, such as low soil nutrients. Yet there is little data from such environments showing the interaction of soil nutrients and water availability on plant physiological processes. The objective of this study was to test whether three common SF tree species have positive physiological responses, e.g. increased photosynthesis and water-use efficiency, when nutrient limitations are relaxed through fertilization. The experiment was conducted on an abandoned pasture in central Amazonia with 6-year-old secondary vegetation following the application of four treatments: control; +phosphorus (P); +phosphorus and lime (P + Ca); and +phosphorus, lime and gypsum (P + Ca + G). The control had higher mean soil moisture at 140 and 180 cm depth at the end of the dry season, indicating that the treatment plots responded positively to fertilizer additions by taking up additional water. Trees of Vismia japurensis and Bellucia grossularioides growing on the fertilized plots had the highest net photosynthesis rates (A) (18.7 and 20.4 μmol m-2 s-1, respectively). The three species utilized different strategies with regard to physiological and nutritional response, with V. japurensis, regardless of treatment, using these limiting resources most efficiently to colonize abandoned pastures. Trees growing on the P + Ca but not +P alone plots increased A rates, indicating that Ca is an important limiting nutrient in post-pasture secondary succession. The addition of Ca as ash by burning primary and secondary vegetation could explain the rapid growth and dominance of V. japurensis in abandoned pasture areas in central Amazonia. The efficiency of Vismia to use limiting resources could lead to a restructuring of SF and altered rates of stand-level productivity. © 2008 Elsevier B.V. All rights reserved. |
| format |
Artigo |
| author |
Silva, Carlos Eduardo Moura da |
| author2 |
Gonçalves, José Francisco Carvalho de Feldpausch, Ted R. |
| author2Str |
Gonçalves, José Francisco Carvalho de Feldpausch, Ted R. |
| title |
Water-use efficiency of tree species following calcium and phosphorus application on an abandoned pasture, central Amazonia, Brazil |
| title_short |
Water-use efficiency of tree species following calcium and phosphorus application on an abandoned pasture, central Amazonia, Brazil |
| title_full |
Water-use efficiency of tree species following calcium and phosphorus application on an abandoned pasture, central Amazonia, Brazil |
| title_fullStr |
Water-use efficiency of tree species following calcium and phosphorus application on an abandoned pasture, central Amazonia, Brazil |
| title_full_unstemmed |
Water-use efficiency of tree species following calcium and phosphorus application on an abandoned pasture, central Amazonia, Brazil |
| title_sort |
water-use efficiency of tree species following calcium and phosphorus application on an abandoned pasture, central amazonia, brazil |
| publisher |
Environmental and Experimental Botany |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/18519 |
| _version_ |
1787144556112773120 |
| score |
11.755432 |