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随着人们物质生活水平的提高,人们更加关注精神层面的追求。身处现代化城市的居民对于园林景观的要求越来越高。园林景观在人们的日常生活中扮演着十分重要的角色,给人们提供了一个休闲、舒适的生活空间。 相似文献
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“如果说过去的时尚地板是消费者只能够到市场上选择制成品的话,那么,创意魔方系列则可以让消费者通过自己的再创造,营造更加个性化的生活空间。”新生活家木业制品(中山)有限公司董事长刘硕真这样向记者描述创意魔方地板与众不同之处。 相似文献
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要想养好一塘鱼,先要养好一塘水。水是水生动物的生存介质和生活空间,养殖用水除了要满足一定的水量外,还要具有相应的理化水质条件,其中最重要的是要求溶解氧含量丰富,温度、盐度、酸碱度等条件适宜,有害物质含量在其安全浓度范围以内。笔者通过长期实践,得出以下主要调控水质的方法。一、适时换水一般池塘水透明度低于20cm时就应该换水,但要注意不能大量换水,避免造成池水温差过大,影响鱼类生长。更换池水要选择清新无污染的水源,在高温季节(6—9月)每周换水一次,应先排出底层池水再注入新水,每次换水20—30cm。二、适时开动增氧机增氧机… 相似文献
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鹿寨处于桂中山地综合治理区,是柳江河的重要水源补给区,对实施退耕还林工程,加快植被恢复,减少水土流失,改善生态环境,拓展人民生活空间,加快贫困山区农民致富步伐,具有十分重要的现实意义。 相似文献
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王永军 《农业工程技术:农产品加工》2006,(6):51-51
观叶植物是指以叶片的形状、色泽和质地为主要观赏对象,具有较强的耐阴性,适宜在室内条件下较长时间陈设和观赏的植物。选择适宜的植物,作为室内布置的补充,是美化生活空间的一种创造性表现形式,特别在生活空间较小和活动空间受到限制的情况下,显得尤为重要。同时由于观叶植物具有调节空气温湿度、减轻噪音、吸附尘埃、净化空气的作用,有利于人的健康。为了使室内观叶植物达到预期的效果,除了了解和掌握其形态和生理要求,还必须重视以下几个方面。 相似文献
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Shi-xiang Zong You-qing Luo Ya-qin Cui Jian-wei Wang Wei Yan Ai-jie Liu Heliövaara Kari 《中国林学(英文版)》2009,11(1):24-27
The population density and distribution of the three major boring pests, Holcocerus artemisiae, Sphenoptera sp. and Adosopius sp. were studied in their host plant Artemisia ordosica. Results show that the larvae of H. artemisiae mainly bore the rhizome of A. ordosica, but also the larvae of Sphenoptera sp. and Adosopius sp. bore the rhizome of A. tordosica. The adults of Sphenoptera sp. and Adosopius sp. feed on the leaves of A. ordosica as a nutritional supplement. The distribution of the larvae of three pests in their host plant is completely different. H. artemisiae and Sphenoptera sp. are distributed in the whole A. ordosica plant. The newly hatched larvae first feed on the phloem and xylem of stem and then burrow to the roots before the winter
of the same year. However, Adosopius sp. is distributed mainly in the roots. The newly hatched larvae move from the phloem to the xylem, and gradually damage
the lower part of the trunk. The larvae of the three pests sometimes coexist in a single A. ordosica plant. However, the probability of the coexistence of the three pests is very small. The highest probability of coexistence
of two pests was observed in Sphenoptera sp. and H. artemisiae, while the probability of coexistence of Sphenoptera sp. and Adosopius sp. as well as H. artemisiae and Adosopius sp. was smaller. The reasons for coexistence or its avoidance are not only related to the amount of food provided nor the
volume of larval living space in a single A. ordosica plant, but also related to the development characteristics of different kinds of larvae and interspecific competition. 相似文献
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