摘要
土壤作为地球表层系统的基本组成成分,在储存养分、维持植物生长、涵养水源、稳定和缓冲环境变化等方面发挥着重要作用。采用科学规范的调查监测方法获取土壤物理、化学和生物等系统的属性信息对于完善区域土壤属性数据库、揭示土壤空间分布规律具有重要意义,也是模型优化或参数本地化的重要基础。本研究于2013年7–8月对中国南北样带中的热带雨林、亚热带阔叶林、温带阔叶林、温带针阔混交林和寒温带针叶林等9个典型森林生态系统的天然林开展规范的野外调查和土壤样品采集测试工作,构建了覆盖北半球主要森林生态系统类型的一套系统的土壤属性数据集。本数据集包含了样点位置,气候环境,植被类型,植被生物量,土壤类型,土壤环境(pH、土壤温度和土壤含水量),土壤机械组成(粉粒、砂粒和粘粒含量),土壤养分(有机碳含量、全氮和全磷含量),土壤有机碳组分(易氧化有机碳、微生物碳含量和土壤可溶性有机碳含量)和土壤腐殖质碳组分(胡敏酸碳含量、富里酸含量、胡敏素碳含量和土壤可提取腐殖质碳含量)、土壤多元素(钾、钙、钠、镁、铝、锌、铁、铜、锰等元素)含量等信息。本数据集的建立和公开共享,除了为区域尺度解析不同类型森林土壤的分布特征和调控机制提供了数据支撑,还将为森林生态系统过程模型的优化和发展提供基础数据。
As a basic component of the Earth’s surface system,soil plays an important role in storing nutrients,maintaining plant growth,conserving water resources,stabilizing and buffering environmental changes.Scientific and standardized survey and monitoring can be used to obtain the physical,chemical and biological attribute of soil,which is of great significance for improving regional soil property databases and revealing the spatial distribution of soil.In this study,during July and August 2013,we conducted standardized field investigations and soil sample collection tests on nine typical natural forest ecosystems,including tropical rain forests,subtropical broad-leaved forests,temperate broad-leaved forests,temperate coniferous and broad-leaved mixed forests,and cold temperate coniferous forests in the north-south transect of China.A comprehensive dataset of soil properties was built,which covers the main forest types in the northern hemisphere.The dataset contains a lot of basic information,including sampling location,climate environment,vegetation type,biomass,soil type,soil environment(pH,soil temperature and moisture),soil mechanical composition(sand,clay,silt),soil nutrients(organic matter,total nitrogen,total phosphorus),soil organic carbon components(easy-oxidized organic carbon,microbial carbon,dissolved organic carbon),soil humic carbon components(humic acid carbon,fulvic acid carbon,humin carbon,extractable humus carbon),and soil element content(K,Ca,Na,Mg,Al,Zn,Fe,Cu,Mn).The dataset provides important information for studies of the distribution and control mechanisms of forest soils.It also provides basic data for optimizing and developing the forest ecosystem process model.
作者
徐丽
何念鹏
Xu Li;He Nianpeng(Key Laboratory of Ecosystem Network Observation and Modeling,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,P.R.China;College of Resources and Environment,University of Chinese Academy of Sciences,Beijing 10049,P.R.China)
基金
中国科学院战略性先导科技专项(XDA19020302),中国科学院科技服务网络STS计划(KFJ-SW-STS-169)
国家重点研发计划(2016YFA0600104)
关键词
中国南北样带
森林生态系统
天然林
土壤属性
north-south transect of eastern China
forest ecosystem
natural forest
soil property
