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首页> 外文期刊>British Journal of Environment and Climate Change >Phytodiversity of Herbaceous Vegetation in Disturbed and Undisturbed Forest Ecosystems of Pahalgam Valley, Kashmir Himalaya, India
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Phytodiversity of Herbaceous Vegetation in Disturbed and Undisturbed Forest Ecosystems of Pahalgam Valley, Kashmir Himalaya, India

机译：印度克什米尔喜马拉雅山帕哈甘河谷受干扰和未受干扰的森林生态系统中草本植被的植物多样性

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The study investigated the comparative assessment of seasonal herbaceous diversity at disturbed and undisturbed forest sites at Pahalgam and Betab valley of Kashmir. The results revealed that Shannon’s diversity attained maximum value (2.238) at site I to a minimum value (0.421) at site IV during summer season. Average values of diversity (H') ranged between 1.883, site I to 0.431, site IV. Dominance index depicted inverse relationship to diversity index (H′) at different sites during different seasons. Equability values varied between (0.890) in autumn season at site II to (0.296) in winter season at site I. Average equability values varied between 0.828, site II to 0.625, site IV. Richness index showed high trend during summer season (2.83, site I) and low at site IV (0.184) in autumn season. Average variation in richness index varied between 0.516, site IV to 1.900, site I. The abundance to frequency ratio (A/F) indicated most of species performed contagious pattern of species distribution (50%-100%, site I; 62%-100%, site II; 28%-100%, site III and 100%, site IV) followed by random (11-31%, site I; 37%, site II; 33%-57% and regular (18%-30%, site I, 25% site II and 14% site III). The study revealed that biotic interference and seasonal influences have affected the species diversity and efforts are required to conserve species diversity in the selected forest sites of the study area.
机译：该研究调查了克什米尔帕哈甘（Pahalgam）和贝塔卜（Betab）山谷受干扰和未受干扰的林地的季节性草本植物多样性的比较评估。结果表明，夏季期间，香农的多样性在I点达到最大值（2.238），在IV点达到最小值（0.421）。多样性（H'）的平均值介于站点I的1.883至站点IV的0.431之间。优势指数与不同季节不同地点的多样性指数（H'）呈反比关系。等值值在站点II的秋季秋季（0.890）至站点I的冬季的（0.296）之间变化。平均等效值在站点II的0.828至站点IV 0.625之间变化。夏季，丰富度指数呈现高趋势（2.83，I点），秋季则呈现低趋势，IV点（0.184）。丰富度指数的平均变化范围在0.516位点IV到1.900位点I之间。丰度/频率比（A / F）表明大多数物种都具有传染性的物种分布模式（50％-100％，位点I; 62％- 100％（第二位）; 28％-100％（第三位）和100％（第四位），然后是随机（11-31％，第一位; 37％（第二位）; 33％-57％和常规（18％-研究发现，生物干扰和季节影响已经影响了物种多样性，需要采取努力以保护研究区域内选定森林点的物种多样性，这一比例为30％（第一站点，第二站点的25％和第三站点的14％）。

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