摘要
黑土地在我国粮食安全中发挥着重要作用。中国科学院海伦农业生态实验站(简称“海伦站”)位于松嫩平原腹地,是中国生态系统研究网络(Chinese Ecosystem Research Network,CERN)中唯一从事黑土农田生态系统长期定位监测、研究与示范的国家级野外台站。按照CERN的统一规范,海伦站开展了土壤长期监测工作。本数据集收集、整理了海伦站2004–2015年3种不同施肥措施下表层(0–20 cm)土壤养分数据,包括土壤有机质、全氮、全磷、全钾、碱解氮、有效磷、速效钾、缓效钾、pH值、交换性阳离子(钙、镁、钾和钠)和阳离子交换量等14项指标,并附有完整的监测样地背景信息、样地管理记录、采样和分析方法记录以及质控信息。本数据集中10种土壤养分指标测定的相对误差平均为2.37%,重复测定的相对偏差为2.08%。本数据集可为黑土资源可持续利用、东北地区农田土壤肥力演变以及区域农业生态研究等工作提供数据基础。
The land of mollisols(usually called“black soils”)plays an extremely important role in China’s food security.Hailun Agroecosystem Experimental Station of Chinese Academy of Science(Hailun Station)located in the hinterland of Songnen Plain,represents the typical agricultural ecosystem in black soils.Hailun station is the only national station in China which is engaged in the long-term monitoring,research,and demonstration of black soil agricultural ecosystem.Abiding by the protocols for standard soil observation and measurement of CERN(Chinese Ecosystem Research Network),Hailun Station has been carrying out long-term soil monitoring.This dataset collected and processed top soil(0–20 cm)nutrient data under three different long-term fertilization regimes from 2004 to 2015.The dataset includes 14 soil nutrient properties:soil organic matter,total nitrogen,total phosphorus,total potassium,available nitrogen,available phosphorus,available potassium,slow-released potassium,pH value,composition of exchangeable cation(Ca2+,Mg2+,K+and Na+),and cation exchange capacity.In addition,the dataset includes detailed background information and management records of the monitored fields,methods of sampling and analyses,and quality control.The relative error and deviation of the 10 nutrient indexes are 2.37%and 2.08%in average,respectively.This dataset can provide data support for sustainable use of black soil,and research on soil fertility evolution of farmland and regional agriculture ecology in northeast China.
作者
郝翔翔
王守宇
韩晓增
郭志英
李禄军
Hao Xiangxiang;Wang Shouyu;Han Xiaozeng;Guo Zhiying;Li Lujun(Northeast Institute of Geography and Agricultural Ecology,Chinese Academy of Science,Harbin150081,P.R.China;Hailun Agroecosystem Experimental Station,Chinese Academy of Science,Hailun 152300,P.R.China;Institute of Soil Science,Chinese Academy of Science,Nanjing 210008,P.R.China)
基金
中国科学院科技服务网络计划(STS计划,KFJ-SW-STS-168)
中国科学院科技服务网络计划(STS计划,KFJ-SW-STS-167).
关键词
长期定位监测
土壤养分
黑土
不同施肥措施
long-term locating and monitoring
soil nutrient
mollisol
different fertilization regimes
