| 尼加拉瓜废弃农田的森林恢复年代序列分析 |
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| 引用本文： | Guillermo Castro Marín,Mulualem Tigabu,Benigno González-Rivas,Per Christer Odén. 尼加拉瓜废弃农田的森林恢复年代序列分析[J]. 林业研究, 2009, 20(3): 213-222. DOI: 10.1007/s11676-009-0034-y |
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| 作者姓名： | Guillermo Castro Marín Mulualem Tigabu Benigno González-Rivas Per Christer Odén |
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| 作者单位： | Guillermo Castro Matín,Benigno González-Rivas(Facultad de Recursos Naturales y del Ambiente, Universidad Nacional Agraria, Apartado posta 453, Managua, Nicaragua);Mulualern Tigabu,Per Christer Odén(Swedish University of Agricultural Sciences, Faculty of Forest Sciences, Southern Swedish Forest Research Centre, Tropical Silviculture and Seed Laboratory, PO Box 101, SE-230 53, Alnarp, Sweden) |
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| 基金项目： | supported by the Swedish International Development Agency (Sida) |
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| 摘 要： | 对废弃4年、9年和14年的3块废弃农田的木本植物物种组成、植物密度和种群结构的恢复情况进行了表征.在每块废弃地上,建立70个100 m2样地,鉴别和计数幼苗、幼树和成年树.在4年龄林分中有13科17物种,9年龄林分中有29科48物种,14年龄林分中有22科44物种.在不同的演替阶段,林分中优势种不同.Lonchocarpus acuminatus在4年龄林分中重要值最高,Myrospermun frutescens、榆梧桐和破布木在9年龄林分中重要值最高;Caesaeria cotymbosa、南美假樱桃、墨西哥丁香和红花风铃木在14年龄林分中重要值最高.从4年龄到14年龄的废弃地,总的立木度从5011株/hm2增加到9631株/hm2.胸径在1cm以上的植株总的基面积也随废弃农田年龄增加而增加.总的来讲,小的植株(胸径小于10cm)的基面积超过总的基面积的一半.9年龄林分物种丰富度最高,14年龄和4年龄林分次之.总之,相比于林分结构属性,次生林植物种类构成可以快速恢复到成熟林水平,这与热带干旱森林总的演替趋势是相一致的.
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| 关 键 词： | 中美洲 早地森林 新热带植物区 恢复 次生演替 废弃农田 森林恢复 |
| 收稿时间： | 2010-01-28 |
A chronosequence analysis of forest recovery on abandoned agricultural fields in Nicaragua |
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| Guillermo Castro Marín,Mulualem Tigabu,Benigno González-Rivas,Per Christer Odén. A chronosequence analysis of forest recovery on abandoned agricultural fields in Nicaragua[J]. Journal of Forestry Research, 2009, 20(3): 213-222. DOI: 10.1007/s11676-009-0034-y |
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| Authors: | Guillermo Castro Marín Mulualem Tigabu Benigno González-Rivas Per Christer Odén |
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| Affiliation: | (1) Facultad de Recursos Naturales y del Ambiente, Universidad Nacional Agraria, Apartado posta 453, Managua, Nicaragua;(2) Swedish University of Agricultural Sciences, Faculty of Forest Sciences, Southern Swedish Forest Research Centre, Tropical Silviculture and Seed Laboratory, PO Box 101, SE-230 53 Alnarp, Sweden |
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| Abstract: | Species composition, diversity and population structure of woody species recovered on three abandoned agricultural fields after 4, 9 and 14 years were characterized. Seedlings, saplings/poles and mature trees were identified and counted in 70 plots of 100 m2 in each abandoned site. A total of 13, 29 and 22 families represented by 17, 48 and 44 species were registered in 4, 9 and 14 year-old stands, respectively. There was a shift in dominant species across successional stages. Lonchocarpus acuminatus had the highest importance value in the 4-year old stand, whereas, Myrospermun frutescens, Guazuma ulmifolia and Cordia alliodora had the highest importance value in the 9-year-old-stand and Caesaeria corymbosa, Muntingia calabura, Gliricidia sepium and Tabebuia rosea in the 14-year old stand. The total stem density increased from 5011 to 9631 individuals per hectare as the age of abandonment increased from 4 to 14 years. The total basal area of individuals ≥ 1cm d.b.h. also increased with the age of abandonment. Overall, small individuals (< 10 cm dbh) contributed to more than half of the total basal area. Species diversity was the highest in the 9-year old stand followed by 14- and 4-year old stands. We concluded that floristic composition of secondary forests recovers rapidly to the mature forest level compared to structural attributes, which is consistent with the general successional trajectories of tropical dry forest. Foundation project: The study was financially supported by the Swedish International Development Agency (Sida) |
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| Keywords: | Central America dry forest Neotropics restoration secondary succession abandoned agricultural field forest recovery |
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