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作 者:刘红玲[1] 陈明辉 鲁为华[3] 于磊[3] 杨俊杰[4]
机构地区:[1]石河子大学师范学院,新疆石河子832003 [2]新农九师畜牧兽医站,新疆塔城834600 [3]石河子大学动物科技学院,新疆石河子832000 [4]新疆生产建设兵团农九师161团,新疆塔城834700
出 处:《北方园艺》2010年第13期62-66,共5页Northern Horticulture
摘 要:利用DCA分析对巴尔鲁克山天然割草场主要植物群落进行了数量分类。结果表明:该区域割草地可以划分为5个类型,各类型之间在植物多样性丰富,且多样性指数之间差别不大。同时,采用移动分割技术对其群落在空间上的分布进行了划分。群落在0~840 m的空间范围内,具有3个明显的过渡区域,且过渡区域跨度较大,而稳定的植被类型存在区域很窄。在840~1 400 m的空间范围内,距离指数曲线波动更为频繁,经过多窗体计算后,仍然存在多个波峰和波谷,群落结构在空间上处于多变状态,充分说明巴尔鲁克山天然割草地不仅草地植物种类丰富,而且由于环境条件在小尺度范围内变化较大,因而在同一草地类下植物群落分布仍然多种多样。Based on the DCA method a quantitative classification of plant communities of the nature mowing pasture in Baerluk mountain was perfor med.The results showed that this mowing pasture can be divided into 5 vegetation types.There was no obvious different on plant diversity and diversify index.The community also can be divided on spatial structure by moving seg mentation technique.This community had 3 obvious transition region in the 0~840 m scope of inter space and the transition region had a wide range,but the region of stable plant types had a narrow range.In the 800~1 400 m scope of inter space the distance index curve waved more frequently.After multi-windows calculating there still has many wave,at the same time the community structure was always in a varied condition.All of the results showed that there was abundant of plants in the mowing pasture of Baerluk mountain and because the environ ment varied greatly in a small scale so even in a same type of pasture the community structure was still diversified.
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