Knowledge Resource Center for Ecological Environment in Arid Area
Nutrient dynamics in forest plantations of Azadirachta indica (Meliaceae) established for restoration of degraded lands in Colombia | |
Patricia Florez-Florez, Claudia1; Diego Leon-Pelaez, Juan1; Walter Osorio-Vega, Nelson2; Fernando Restrepo-Llano, Manuel1 | |
通讯作者 | Patricia Florez-Florez, Claudia |
来源期刊 | REVISTA DE BIOLOGIA TROPICAL |
ISSN | 0034-7744 |
EISSN | 2215-2075 |
出版年 | 2013 |
卷号 | 61期号:2页码:515-529 |
英文摘要 | Azadirachta indica is a tree species which use is steadily increasing for restoration of tropical and subtropical arid and degraded lands throughout the world. The objective of this research study was to evaluate the potential of these plantations as an active restoration model for the recovery of soils under desertification in arid lands of Colombia. Litter traps and litter-bags were installed in twenty 250m(2) plots. Green leaves and soil samples inside and outside this species plantations were taken, and their elemental concentrations were determined. Litterfall, leaf litter decomposition and foliar nutrient resorption were monitored for one year. The annual contributions of organic material, such as fine litterfall, represented 557.54kg/ha, a third of which was A. indica leaves. The greatest potential returns of nutrients per foliar litterfall were from Ca (4.6kg/ha) and N (2.4kg/ha), and the smallest potential returns came from P (0.06kg/ha). A total of 68% of the foliar material deposited in litter-bags disappeared after one year. The greatest release of nutrients was that of K (100%), and the least was that of N (40%). P was the most limiting nutrient, with low edaphic availability and high nutrient use efficiency from Vitousek’s index (IEV=3176) and foliar nutrient resorption (35%). Despite these plantations are young, and that they have not had forestry management practices, as an active restoration model, they have revitalized the biogeochemical cycle, positively modifying the edaphic parameters according to the increases in organic material, P and K of 72%, 31% and 61%, respectively. Furthermore, they improved the stability of aggregates and the microbe respiration rates. The forest plantation model with exotic species has been opposed by different sectors; however, it has been acknowledged that these projects derive many benefits for the restoration of biodiversity and ecosystemic functions. The conditions of severe land degradation demand the initial use of species, such as A. indica, that can adapt quickly and successfully, and progressively reestablish the biogeochemical cycle. |
英文关键词 | soil rehabilitation restoration ecology biogeochemical cycle Neem (Azadirachta indica) litterfall litter decomposition nutrient return |
类型 | Article |
语种 | 西班牙语 |
国家 | Colombia |
收录类别 | SCI-E |
WOS记录号 | WOS:000322504300004 |
WOS关键词 | LEAF-LITTER DECOMPOSITION ; COAL-MINE SPOIL ; SOIL AMELIORATION ; MICROBIAL BIOMASS ; NITROGEN DYNAMICS ; TROPICAL FOREST ; LEAVES ; TREES ; RESORPTION ; SINGRAULI |
WOS类目 | Biology |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/179808 |
作者单位 | 1.Univ Nacl Colombia, Fac Ciencias Agropecuarias, Dept Ciencias Forestales, Bogota, Colombia; 2.Univ Nacl Colombia, Fac Ciencias, Escuela Geociencias, Bogota, Colombia |
推荐引用方式 GB/T 7714 | Patricia Florez-Florez, Claudia,Diego Leon-Pelaez, Juan,Walter Osorio-Vega, Nelson,et al. Nutrient dynamics in forest plantations of Azadirachta indica (Meliaceae) established for restoration of degraded lands in Colombia[J],2013,61(2):515-529. |
APA | Patricia Florez-Florez, Claudia,Diego Leon-Pelaez, Juan,Walter Osorio-Vega, Nelson,&Fernando Restrepo-Llano, Manuel.(2013).Nutrient dynamics in forest plantations of Azadirachta indica (Meliaceae) established for restoration of degraded lands in Colombia.REVISTA DE BIOLOGIA TROPICAL,61(2),515-529. |
MLA | Patricia Florez-Florez, Claudia,et al."Nutrient dynamics in forest plantations of Azadirachta indica (Meliaceae) established for restoration of degraded lands in Colombia".REVISTA DE BIOLOGIA TROPICAL 61.2(2013):515-529. |
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