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爬山虎在治理荒山中的作用—治理荒山模式之构想 总被引:4,自引:0,他引:4
赵广德 《辽宁师专学报(自然科学版)》2002,4(4):93-94,108
我省在治理荒山工作中虽然取得了很大成绩,但尚有相当面积的宜林荒山属于石质荒山,造林很难成活。本文提出了一个治理此类荒山的新模式,即利用爬山虎能够固着在石砾、岩石上,且覆盖面积大而株数少、抚育工作量较小的特点,来促使这些地段启动演替过程。 相似文献
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成都市四种垂直绿化植物生态学效应研究 总被引:14,自引:0,他引:14
对爬山虎(Parthenocissus trcuspidata),木香(Rosa banksiae Ait),油麻藤(Mucuna sempervirens),紫藤(Wistaria sinensis Sweet)四种垂直绿化植物测定叶面积指数、呼吸与光和速率及蒸腾强度等指标,计算释氧固氮和吸热降温量,量化评价了四种垂直绿化植物的生态学效应. 相似文献
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一、潜心钻研,挖掘文本诗意 师:我虽然未见叶老先生的面,但他的批改却如“春风拂面”。“春风拂面”这个词让你想起了哪些诗句,哪些景象? 相似文献
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正我家门前的山岩上,布满了绿绿的爬山虎。它似一道绿色的瀑布,又像一片绿色的云朵,成了小山村亮丽的风景。盛夏,如火的骄阳炙烧着大地。我常坐在门口想:它不觉得渴吗?它忍受得了吗?岩石上缺水少土,它的叶片咋还苍翠欲滴?严冬,刺骨的寒风袭来,我也曾为它担心,担心它的藤蔓被冻枯,根被 相似文献
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A stereotaxic method and apparatus for the <Emphasis Type="Italic">Gekko gecko</Emphasis> 总被引:1,自引:0,他引:1
To study the modulation mechanism of the middle brain of the Gekko to the locomotion, we introduced a stereotaxic method first in literature and developed an apparatus suitable for Gekko gecko, the biggest wall and ceiling climber in nature. We defined the bregma and nasal points as reference points, selected the bilateral infraorbital margin and top point of the maxillary tooth for locating and fixing, and set up the line passing through the bregma and paralleling to a line connecting the bilateral infraorbital margin as x axis. Then, we defined a horizontal plane in the stereotaxic instrument, passing through x axis and the certain point which is 4.8 mm exactly above the nasal point, as the XOY plane; the sagittal plane, i.e. the YOZplane, is the plane which is perpendicular to x axis and passes through the bregma; the plane, i.e. the XOZ plane, which passes through x axis and is perpendicular to the horizontal plane is the coronal plane. We designed a set of head holder which includes three parts: bilateral infraorbital margin clamps, a gecko adaptor holding the rostral side of the upper jaw. The allocation and operation of the head holder is accurate and simple, and the device is low in cost and compatible with standard stereotaxic instrument. 相似文献