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侧柏(platycladus orientalis)是我国主要造林和庭院观赏树种,栽培历史悠久。适应性强,耐干旱、耐瘠薄,也是石质山区阳坡造林的先锋树种。广泛分布于全国十几个省(市、自治区)。在各地不同的自然环境条件的长期作用下,产生了适应性变异,形成了当地的自然类型。为了解侧柏地理种源变异规律,选择生长快,适应性强的种源,并为区划种子的调拨范围提供科学依据,由北京林学院主持进行了全国十二个省区的侧柏种源试验。我场作为一个试验点参加了此项工作。现将我场1983年开始的育苗试验结果小结如下。
Platycladus orientalis (Platycladus orientalis) is China’s main afforestation and ornamental garden trees, cultivation has a long history. Adaptable, drought-resistant, resistant to infertility, but also the pioneers of afforestation on sunny slopes of stony mountains. Widely distributed in more than a dozen provinces (municipalities and autonomous regions). Under the long-term effect of different natural environment conditions, adaptive mutation has taken shape, forming a local natural type. In order to understand the law of geographical provenance variation of Oriental Arborvitae, select the provenances with fast growth and strong adaptability, and provide the scientific basis for the allocation of regionalized seeds, the oriental arborvitae provenance of 12 provinces in China was presided over by Beijing Forestry College test. My field as a pilot point to participate in this work. Now my field seedling test results in 1983 are summarized below.