2004-2008年河南封丘站作物收获期监测数据

本数据产品是在《中国生态系统定位观测与研究数据集》丛书的《农田生态系统卷》之河南封丘站1册的基础上进行数字化加工，通过完善元数据并与实体数据相关联，生产了本数据产品。本数据产品包含了河南封丘站按照CERN长期监测指标体系和规范开展的河南封丘农田生态系统主要作物矿质元素含量与能值、收获期测产、收获期植株性状的长期监测数据。数据范围自2004年至2008年。作物收获期监测数据是黄淮海平原沿黄河及黄河泛滥地区农田生态系统的重要参数，可为黄淮海平原沿黄河及黄河泛滥地区农田生态系统研究提供基础数据支撑。本数据产品同时包含封丘站观测点介绍及观测指标获取方法与过程的关联文档。

This data product was developed through digitized processing based on Volume 1: Henan Fengqiu Station of the *Farmland Ecosystem Volume* within the *China Ecosystem Fixed Observation and Research Dataset Series*, by refining metadata and associating it with physical observation data. This data product contains long-term monitoring data on major crop mineral element contents, energy values, harvest-stage yield measurements, and harvest-stage plant traits of the farmland ecosystem at Henan Fengqiu Station, which was collected in accordance with the long-term monitoring indicator system and specifications of the Chinese Ecosystem Research Network (CERN), covering the period from 2004 to 2008. The crop harvest-stage monitoring data serves as key parameters for farmland ecosystem research in the areas along the Yellow River and the Yellow River floodplain of the Huang-Huai-Hai Plain, providing fundamental data support for relevant studies. This data product also includes associated documents introducing the observation stations at Fengqiu Station, as well as the acquisition methods and processes of the monitoring indicators.