| 数据库（集）名称 | 2004–2015年中国科学院海伦农业生态实验站长期监测样地表层土壤养分数据集 |
| 数据生产者 | 郝翔翔、王守宇、韩晓增、郭志英、李禄军 |
| 数据时间范围 | 2004–2015年 |
| 地理区域 | 中国生态系统研究网络（CERN）海伦农业生态实验站、海伦国家野外科学观测研究站（东经126º55′，北纬47º27′），位于黑龙江省绥化市海伦市。本数据集来自海伦农业生态实验站的3个长期观测样地（126°55′30″–126°55′37″E， 47°27′16″–47°27′20″N）：综合观测场土壤生物长期观测样地、辅助观测场土壤生物监测长期采样地（空白）和辅助观测场土壤生物监测长期采样地（秸秆还田）。 |
| 数据量 | 209 KB |
| 数据格式 | *.xlsx |
| 数据服务系统网址 | http://www.sciencedb.cn/dataSet/handle/754 |
| 基金项目 | 中国生态系统观测研究网络野外台站运行服务费；科技部国家野外科学观测研究站运行服务费。 |
| 数据库（集）组成 | 本数据集由6部分数据表组成，分别为： 1.“土壤养分”表，海伦站黑土表层养分长期监测数据，数据记录546条。本表格包括年、月、日、样地代码、样地名称、采样分区编号、采样分区描述（微地形）、土壤类型、母质、作物、采样深度（cm）、样品号、有机质（g/kg）、全氮（N g/kg）、全磷（P g/kg）、全钾（K g/kg）、碱解氮（N mg/kg）、有效磷（P mg/kg）、速效钾（K mg/kg）、缓效钾（K mg/kg）、水溶液提pH值、交换性钙离子(mmol/kg(1/2Ca2+))、交换性镁离子(mmol/kg(1/2Mg2+))、交换性钾离子(mmol/kg(K+))、交换性钠离子(mmol/kg(Na+))、阳离子交换量(mmol/kg(+))和备注，共计27个字段； 2. “样地背景信息”表，海伦站长期监测样地基本信息数据，数据记录3条；本数据表包括样地代码、样地名称、样地类别、起始观测年份、观测目的、试验设计、轮作方式与熟制、东经（°）、北纬（°）、海拔（m）、母质、中国土壤发生分类、中国土壤发生分类亚类，共计13个字段； 3. “样地管理记录”表，海伦站长期监测样地的农田管理数据，数据记录36条；本数据表包括年份、样地代码、作物名称、作物品种、播种日期（年/ 月/ 日）、收获日期（年/ 月/ 日）、灌溉（排水）情况、施肥品种（包括化肥、秸秆和有机肥）、施肥时间和方式、施肥量（以施入肥料重量计，包括秸秆还田，kg/ha）、施入碳量（折纯，kg C/ha）、施入氮量（折纯，kg N/ha）、施入磷量（折纯，kg P2O5/ha）、施入钾量（折纯，kg K2O/ha）、作物产量（kg/ha）、自然灾害、病虫害、人为干扰、田间管理负责人和备注，共计20个字段； 4. “采样和样品保存记录”表，海伦站长期监测样地的土壤样品采集和保存记录，数据记录36条；本数据表包括年份、样地代码、采用时间和天气状况、采样方式、样品保存个数、样品号、样品前处理、样品保存记录和采样人，共计9个字段； 5.“分析方法记录”表，各项土壤养分指标的分析方法数据，数据记录117条；本数据表包括分析年份、分析项目名称、分析方法名称、分析方法引用标准和参考文献，共计5个字段； 6. “标准样品质控记录”表，各项土壤养分监测指标分析的标准样品质控数据，数据记录89条；本数据表包括年份、标准样品名称、测定项目、单位、标样值、不确定度、标样定值方法、标样测定均值、测定值的标准差、测定重复次数、测定值的分析方法、所用仪器名称、测定人和审核人，共计14个字段。 |
| Title | A dataset of topsoil nutrient content observed by Hailun Agroecosystem Experimental Station, CAS (2004–2015) |
| Data corresponding author | Li Lujun (lilujun@iga.ac.cn) |
| Data authors | Hao Xiangxiang, Wang Shouyu, Han Xiaozeng, Guo Zhiying, Li Lujun |
| Time range | 2004 – 2015 |
| Geographical scope | Hailun Agroecosystem Experimental Station, Chinese Ecosystem Research Network; National Field Observation and Research Station of Agroecosystem in Hailun, Chinese Academy of Science, located in Hailun City, Suihua City, Heilongjiang Province, China. Geographical location: 126º55′E, 47º27′N. The dataset is derived from three long-term monitoring plots (126°55′30″–126°55′37″E, 47°27′16″–47°27′20″N) at Hailun Station, which include the comprehensive long-term monitoring plot, supplementary long-term monitoring plot with no fertilization and supplementary long-term monitoring plot with straw returning. |
| Data volume | 255 KB |
| Data format | *.xlsx |
| Data service system | <http://www.sciencedb.cn/dataSet/handle/754> |
| Sources of funding | Supported by Chinese Ecosystem Research Network of Chinese Academy of Sciences and National Ecosystem Research Network of China, Ministry of Science and Technology. |
| Dataset composition | The dataset consists of the following six tables: 1. Soil nutrient table The table recorded the long-term locating and monitoring data of topsoil nutrient in Hailun Station, containing 546 entries, which included year, month, day, plot code, sampling subplot description (microtopography), soil type, parent material, crop, sampling depth (cm), sample code, organic matter (g/kg), total N (g/kg), total P (g/kg), total K (g/kg), available N (mg/kg), available P (mg/kg), available K (mg/kg), slowly available K (mg/kg), pH value, exchangeable Ca (mmol/kg(1/2Ca2+)), exchangeable Mg (mmol/kg(1/2 Mg 2+)), exchangeable K (mmol/kg(K+)), exchangeable Na (mmol/kg(Na +)), cation exchange capacity (mmol/kg(+)) and remarks, with a total of 27 fields. 2. Plot information table The table recorded the profile of the plots monitored by Hailun Station, containing 3 data entries, which included plot code, plot name, plot type, observation starting year, observation objective, experiment design, crop rotation and system, east longitude (°), north latitude (°), altitude (m), parent material, soil type (as per Genetic Soil Classification of China), soil subtype (as per Chinese Soil Taxonomy), with a total of 13 fields. 3. Plot management table The table recorded the main field management data from plots of Hailun Station, containing 36 data records, which included year, plot code, crop, species, sowing date (year/month/day), harvesting data (year/month/day), irrigation and drainage, fertilizers (including chemical fertilizer, straw and organic fertilizer), fertilization date and method, application rate (by the weight of fertilizers, including the returned straw, kg/ha), carbon application rate (kg C/ha), nitrogen application rate (kg N/ha), phosphor application rate (kg P2O5/ha), potassium application rate (kg K2O/ha), yield (kg/ha), natural disaster, disease and pest, human disturbance, field manager and remarks, with a total of 20 fields. 4. Soil sampling and preservation table The table recorded the methods of soil sampling and preservation, containing 117 data entries, which included year, plot code, sampling data and weather condition, sampling method, amount of samples preserved, sample number, samplepreparation, sample preservation record and sampling staff, with a total of 9 fields. 5. Analysis method table The table recorded the laboratory analysis method for the properties of each soil nutrient, containing 117 data entries, which included year, item, analysis method, citation standard and reference, with a total of 5 fields. 6. Reference determination table The table recorded the quality control data by means of reference determination, containing 89 data entries, which included year, reference, analysis item, unit, standard value, uncertainty, analysis method for standard value, means of reference determination, standard deviation of reference determination, repeating times of reference determination, analysis method of reference determination, instrument, analyzer, and auditor, with a total of 14 fields. |
