论文部分内容阅读
油松(Pinus tabulaeformis)很耐干旱瘠薄,适应范围较广,是辽宁西部山区的一个主要荒山造林树种。为了更好地发挥油松林在水土保持方面的作用,我们对油松林的水土保持特性及其提高水土保持作用的营林措施进行了初步研究。一、油松的水土保持特性为了更好地鉴别油松水土保持特性,我们是与刺槐相对照来叙述的。(一) 油松的各项水土保持因子观测1.树冠截雨作用。在立地条件相似的7年生油松林和5年生刺槐林中,选生长中庸的
Pinus tabulaeformis is arid and infertile, with a wide range of adaptability. It is a major afforestation tree species in western Liaoning mountainous area. In order to give full play to the role of Pinus tabulaeformis forest in soil and water conservation, we conducted a preliminary study on the soil and water conservation characteristics of Pinus tabulaeformis forest and the silvicultural measures to improve soil and water conservation. First, the characteristics of soil and water conservation of Pinus tabulaeformis In order to better identify the soil and water conservation characteristics of Pinus tabulaeformis, we are described in contrast with the black locust. (A) of the soil and water conservation factors observed Pinus tabulaeformis 1. Canopy interception effect. In the site conditions similar 7-year-old Pinus tabulaeformis forest and 5-year-old Robinia pseudoacacia forest, select the growth of moderate