中国主要农田生态系统养分循环试验数据库(1990-2006年)

自“八五”以来，以分布于我国温带到亚热带主要农田类型区的院内有关生态试验站为研究平台，结合相关区域NPK使用与平衡特征的调查，建立了中国主要农田生态系统养分循环长期定位试验数据库。具有相对统一试验设计；元数据较成熟，并有统一的分析方法。十一五期间，将选择试验设计合理、覆盖时间范围较长或背景数据完整的数据集，增添气候条件、部分农作物养分循环参数，对现有的不同试验处理下的土壤养分数据进行质量控制。

Since the 8th Five-Year Plan period, taking institute-affiliated ecological experimental stations distributed in the main farmland type regions from temperate to subtropical zones in China as research platforms, combined with investigations on the characteristics of NPK application and nutrient balance in relevant regions, a long-term stationary experimental database on nutrient cycling in major Chinese farmland ecosystems has been established. This database features relatively uniform experimental design, mature metadata, and standardized analytical methods. During the 11th Five-Year Plan period, datasets with reasonable experimental design, long time coverage or complete background data will be selected, with climatic conditions and some crop nutrient cycling parameters added, and quality control will be conducted on the existing soil nutrient data under different experimental treatments.

搜集汇总

背景与挑战

背景概述

该数据集是中国主要农田生态系统养分循环的长期定位试验数据库，覆盖1990-2006年，基于温带到亚热带农田类型区的试验站，结合NPK使用调查，具有统一试验设计和分析方法。其特点是元数据成熟，未来计划扩展气候和农作物参数以增强数据质量。