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油松是渭北黄土高原主要造林树种之一。为了确定适宜油松生长的立地类型,及评价油松林地和宜林地的立地质量,我们用数量化理论I的方法,编制了“渭北黄土高原油松数量化立地质量得分表”。在此基础上,又编制出“渭北黄土高原油松数量化立地质量评价表”和“各立地类型适生树种表”。现将编制方法和结果简报如下: 一、编表地区概况渭北黄土高原位于陕西黄土高原的南部,年平均温度8.6-12.3℃,日平均气温≥10℃的积温3,060-4,031℃;年平均降雨量525
Pinus tabulaeformis is one of the main afforestation species in the Weibei Loess Plateau. In order to determine the site type suitable for the growth of Pinus tabulaeformis and evaluate the site quality of Pinus tabulaeformis woodland and Yilin woodland, we developed Quantitative Site I Quality Score Table for Pinus tabulaeformis in Weibei Loess Plateau by means of Quantitative Theory I. On this basis, we also prepared the “Weigao Loess Plateau Pinus massoniana quantitative site quality evaluation table” and “the site type suitable tree species table.” Brief introduction of the preparation methods and results are as follows: I. Overview of the layout area The Weibei Loess Plateau is located in the southern part of Shaanxi Loess Plateau with an annual average temperature of 8.6-12.3 ℃, an accumulated temperature of 3,060-4,031 ℃ with an average daily temperature of ≥10 ℃, annual average rainfall Amount 525