黔西南地区石斛资源现状及持续干旱对其影响评价

[目的]调查黔西南地区石斛资源现状及2009年以来的持续干旱对石斛资源的影响,以期为石斛保育与可持续利用提供依据.[方法]通过实地踏勘、走访调查等方法,分析黔西南地区现有资源状况.定点跟踪监测,对比分析不同年份石斛的生长量.[结果]黔西南地区石斛属植物共20种,占贵州已知23种的87％;细叶石斛等3种数量相对较多,有少量蒴果;铁皮石斛等价值高的种极为稀少,野外已很难找到.经历2009年以来的严重干旱,石斛未受到直接损伤;干旱年份植株生长量明显小于正常年份.[结论]黔西南地区有适宜石斛生长的良好自然条件,人为因素是造成石斛物种濒危的直接原因.石斛有极强的耐干旱能力,回归保育是实现物种保护与可持续...

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Published in南方农业学报 Vol. 44; no. 9; pp. 1426 - 1430
Main Author 罗晓青 吴明开 张显波 查兰松 敖茂宏
Format Journal Article
LanguageChinese
Published 贵州省亚热带作物研究所,贵州兴义,562400%贵州省现代中药研究所,贵阳,550006 2013
Subjects
回归保育
干旱
植株反应
石斛
资源调查
黔西南
Southwest Guizhou
干旱
resources investigation
回归保育
drought
石斛
植株反应
Dendrobium
reintroduction conservation
资源调查
黔西南
Online AccessGet full text
ISSN2095-1191
DOI10.3969/j:issn.2095-1191.2013.9.1424

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Summary:[目的]调查黔西南地区石斛资源现状及2009年以来的持续干旱对石斛资源的影响,以期为石斛保育与可持续利用提供依据.[方法]通过实地踏勘、走访调查等方法,分析黔西南地区现有资源状况.定点跟踪监测,对比分析不同年份石斛的生长量.[结果]黔西南地区石斛属植物共20种,占贵州已知23种的87％;细叶石斛等3种数量相对较多,有少量蒴果;铁皮石斛等价值高的种极为稀少,野外已很难找到.经历2009年以来的严重干旱,石斛未受到直接损伤;干旱年份植株生长量明显小于正常年份.[结论]黔西南地区有适宜石斛生长的良好自然条件,人为因素是造成石斛物种濒危的直接原因.石斛有极强的耐干旱能力,回归保育是实现物种保护与可持续利用的有效途径.
Bibliography:45-1381/S
Dendrobium ; resources investigation ; drought ; reintroduction conservation ; Southwest Guizhou
LUO Xiao-qing , WU Ming-kai, ZHANG Xian-bo, ZHA Lan-song, AO Mao-hong （1Guizhou Subtropical Crops Research Institute, Xingyi, Guizhou 562400, China; 2Institute of Chinese Medical Materials Development, Guiyang 550006, China）
[Objective]Dendrobium resources status and the impacts of continuous drought since 2009 were surveyed to provide references for its conservation and sustainable use. [Method ]Through field survey and visit, the existing resource situation was analyzed. The increment of different years was compared by fixed-point tracking and monitoring. [Result]In Southwest Guizhou region, there were totally 20 species of Dendrobium, accounting for 87% of the known 23 kinds in Guizhou. Three kinds including Dendrobium haneockii relatively had a greater number, and there were few capsules. The varieties of high value like Dendrobium officinale were scarce and extinct in the wild. Dendrobium was not subje
ISSN:2095-1191
DOI:10.3969/j:issn.2095-1191.2013.9.1424