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树木地上部分和地下部分相互制约、相互 促进。没有健壮的根系,不可能有地上部分良 好的生长和结实。因此,了解花椒根系在土壤 中的分布及不同立地条件对其生长发育的影 响,是制定花椒栽培技术措施的重要依据。 一、观察地点的基本情况 观察地点在河北省涉县南沟村,属山地类 型,海拔680米,年平均气温12℃,无霜期190 天,年降水量540—590毫米。花椒园设在沟谷 梯田和山地梯田,土层厚度为60—120厘米,成 土母质为石灰岩,土壤以粗骨黄壤土为主,有 少量的褐淤土、红粘土、白垩土。
The aboveground and underground parts of the tree restrict each other and promote each other. Without a robust root system, there can be no good growth and strong ground above ground. Therefore, to understand the distribution of the root system of Zanthoxylum bungeanum in soil and the influence of different site conditions on its growth and development are the important bases for the development of Zanthoxylum bungeanum cultivation techniques and measures. First, the basic situation of the observation site Observation sites Nancun in Shexian County, Hebei Province, is a mountain type, elevation 680 meters, the annual average temperature of 12 ℃, frost-free period 190 days, annual precipitation 540-590 mm. Pepper Park is located in the valley terrace and mountain terraces, soil thickness of 60-120 cm, soil parent material is limestone, the soil is mainly coarse yellow soil, a small amount of brown soil, red clay, chalk soil.