北京城市公园表层土壤pH、有机质和四种元素含量数据集（2018年）

选取北京市主城区的108个公园，每个公园采用了随机抽样的方法，采样点的位置尽量选择在人群经常聚集的地方，收集三到六个子样本，彻底混合后为一个代表性样本，共采集表层土壤(0-10 cm)样品108个。土壤样品在室温下风干，筛除植物碎屑，砾石和石头后研磨过筛，最终密封在4℃棕色玻璃瓶中保存。测得北京主城区公园表层土壤4种元素Be、Co、Sb、V含量和6种土壤性质参数，以及收集18种人为影响因素数据。用于推导北京主城区公园4种元素Be、Co、Sb、V的土壤环境基准值。

A total of 108 parks in the urban core area of Beijing were selected. For each park, random sampling was conducted, with sampling points preferably located at frequently crowded human gathering areas. Three to six subsamples were collected from each park, thoroughly mixed to obtain a representative composite sample, and ultimately 108 surface soil (0-10 cm) samples were collected. The soil samples were air-dried at room temperature, followed by removal of plant debris, gravel and stones, then ground and sieved. Finally, the samples were sealed and stored in brown glass bottles at 4℃. The contents of four elements (Be, Co, Sb, V) and six soil property parameters in the surface soils of these parks were measured, along with data on 18 anthropogenic influencing factors. This dataset was applied to derive the soil environmental benchmark values for the four elements Be, Co, Sb and V in the urban core parks of Beijing.