Effects of transformation processes on plant species richness and diversity in homegardens of the Nuba Mountains, Sudan
Effects of transformation processes on plant species richness and diversity in homegardens of the Nuba Mountains, Sudan
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转化过程对苏丹努巴山家庭花园植物物种丰富度和多样性的影响
DOI：
10.1007/s10457-014-9717-2
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发表时间：
2014
影响因子：
2.2
通讯作者：
Gebauer
中科院分区：
文献类型：
--
作者：
Wiehle;Martin;Kehlenbeck;Goenster;Mohamed;Seifeldin A;Buerkert;Andreas;Gebauer
传统的家庭花园（HGs）被认为拥有高水平的植物多样性，因此被认为是适合在农场（包括环境）保护植物遗传资源的可持续农业生态系统。尽管人们对半干旱和干旱地区传统植物群落的功能结构知之甚少，但它们的植物物种丰富度和多样性正日益受到近期快速发展的农业转型进程的威胁。苏丹传统的jubrakahg系统尤其如此。因此，在苏丹南科尔多凡省努巴山区4个村庄随机选取61个HGs进行地理记录，测定植物丰富度和丰度，计算植物多样性参数。此外，通过访谈和土壤样本评估了社会经济家庭数据，以便全面分析影响不同村庄、商业化水平和基于植物物种组成的集群的HG植物多样性的推定因素。研究区共种植了35科110种植物和71种观赏植物。多年生树种占57%，其中本土树种12种，外来树种6种。每HG有用植物（不含观赏植物）的平均物种丰富度为23（范围6 ~ 46）。平均每HG 23个物种中有41%是外来物种，但不同地点间的差异很大（21 - 83%）。平均多样性指数和均匀度指数分别为1.46（0.49 ~ 2.42）和0.48（0.15 ~ 0.87）。商业温室气体的物种丰富度显著高于生存温室气体，但商业温室气体的商业化程度对物种多样性的影响较小。pH值为6.6 ~ 7.2的土壤物种丰富度较高。IFT丰富度变化很大，但在四个地点之间差异不显著。植物物种丰富度和多样性高于半干旱区其他HG系统。聚类分析是一种有价值的工具，可以对HG进行分类，提取低、中、高丰富度和多样性的同质HG类型。此外，植物群落中外来和观赏物种的比例表明，传统耕作方式有丧失的趋势，特别是在市场准入良好的地区。数据并未表明，市场导向的温室气体群落由于商业化和物种丰富度造成的种间多样性损失在数值上甚至高于自给型温室气体群落。
Traditional homegardens (HGs) are considered to harbor high levels of plant diversity and have been therefore characterized as sustainable agro-ecosystems suitable for on-farm (incl.circa situm) conservation of plant genetic resources. While the functional structure of traditional HGs is poorly understood specifically for semi-arid and arid regions, their plant species richness and diversity is increasingly threatened by recent and fast evolving agricultural transformation processes. This has been particularly claimed for traditionaljubrakaHG systems of Sudan. Therefore, sixty-one HGs in four villages of the Nuba Mountains, South-Kordofan Province, Sudan, were randomly selected, geographically recorded and plant richness and abundance determined and plant diversity parameters calculated. In addition, socio-economic household data were assessed by interviews and soil samples taken to allow a comprehensive analysis of putative factors affecting HG plant diversity across different villages, levels of commercialization and plant species composition based clusters. A total of 110 species from 35 plant families were grown in the HGs along with 71 ornamentals. Perennial species accounted for 57 % including 12 indigenous fruit tree (IFT) species and six exotic fruit tree species. Mean species richness of useful plant species (excluding ornamentals) per HG was 23 (range 6–46). On average, 41 % of the 23 species per HG were of exotic origin, however, with a large range (21–83 %) among locations. Mean diversity and evenness indices were 1.46 (range 0.49–2.42) and 0.48 (0.15–0.87), respectively. The level of commercialization of HGs only marginally affected species diversity measures although the species richness was significantly higher for commercial than subsistence HGs. Species richness was higher on lower (6.6–7.2) pH soils. IFT richness was highly variable, but non-significantly different across the four locations. Plant species richness and diversity was high in comparison with other HG systems in semi-arid regions. Cluster analysis was found to be a valuable tool to classify HGs and to extract homogeneous HG types with low, intermediate and high richness and diversity. In addition, the share of exotic and ornamental species in HGs indicated a trend towards the loss of traditional farming practices, particularly in areas with good market access. The data did not indicate the hypothesized loss of inter-specific diversity due to commercialization and species richness was numerically even higher for market-oriented HGs compared to subsistence ones.
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爪哇家庭花园作为一个综合农业生态系统
DOI：
--
发表时间：
1985
期刊：
影响因子：
--
作者：
O. Soemarwoto;Idjah Soemarwato;Karyono;E. M. Soekartadiredja;A. Ramlan
通讯作者：
A. Ramlan
对苏丹北部植物的回顾，特别是其用途。
DOI：
--
发表时间：
1991
期刊：
影响因子：
--
作者：
F. F. Bebawi;L. Neugebohrn
通讯作者：
L. Neugebohrn
非洲猴面包树 Adansonia digitalata L
DOI：
--
发表时间：
2005
期刊：
影响因子：
--
作者：
M. Sidube;J. T. Williams
通讯作者：
J. T. Williams
管理热带农林业的生物和遗传多样性
影响因子：
2.2
作者：
K. Atta;R. Kindt;J. Skilton;W. Amaral
通讯作者：
W. Amaral
秘鲁东北部亚马逊流域农民村庄家庭花园栽培植物物种多样性
影响因子：
2.6
作者：
O. Coomes;Natalie Ban
通讯作者：
Natalie Ban