浙江省龙游县北部土壤中植物营养元素动态变化研究  

A Study on the Variation of Plant Nutrient Elements in Soils at the North of Longyou County,Zhejiang Province

作　　者：贺灵[1,2] 周国华 孙彬彬[1,2] 简中华 黄春雷[3] 康占军 HE Ling;ZHOU Guohua;SUN Binbin;JIAN Zhonghua;HUANG Chunlei;KANG Zhanjun(Key Laboratory of Geochemical Exploration,Ministry of National Resources of the People's Republic of China,Institute of Geophysicaland Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang, Hebei 065000,China;UNESCO International Centre on Global-scale Geochemistry, Langfang,Hebei 065000, China;Zhejiang Institute of Geological Survey,Hangzhou,Zhejiang 311203,China)

机构地区：[1]自然资源部地球化学探测技术重点实验室,中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000 [2]联合国教科文组织全球尺度地球化学国际研究中心,河北廊坊065000 [3]浙江省地质调查院,浙江杭州311203

出　　处：《现代地质》2019年第5期1055-1062,共8页Geoscience

基　　金：中国地质调查局项目(DD20160320-02,12120113002200)

摘　　要：土壤中植物营养元素含量及其平衡状况对作物生长有重要影响。识别判断土壤中营养元素的时空变化趋势是土地质量地球化学监测的重要任务。利用浙江省龙游县北部地区2008年与2014年两期区域土壤地球化学调查数据,在对分析测试系统误差进行校正之后,采用统计分析与空间分析的方法,研究土壤中重要营养元素含量与空间分布的变化特征。结果表明,整体上大量营养元素N、K2O的含量有所降低,其净相对累积率分别为-4.40%和-13.81%;营养元素B和P的含量变化幅度很小;土壤中植物营养元素累积变化受土壤类型和土地利用类型的影响,不同土壤类型和土地利用现状下,营养元素相对累积率存在差异。如水田土壤N呈明显的富集趋势,林地、菜地、旱地等土地利用方式下土壤N呈贫化趋势;菜地、园地、旱地土壤P具有较明显的富集趋势,而水田土壤P呈贫化趋势。The concentration and their balance of nutrient elements in arable soils are of important influence on crop growth.Identifying the temporal and spatial change of nutrient elements in soils is a key task to monitor geochemical change of land quality.The temporal and spatial variation of nutrient elements in soils at the north of Longyou County was recognized through statistical and spatial analysis based on the two sets of data respectively obtained in 2008 and 2014 after eliminating systemic analytical bias.The results showed that the contents of N and K2 O in soils decreased and the net relative accumulation rates were-4.40%and-13.81%respectively during the past six years.The variation of B and P concentration in soils was not obvious.The accumulation rates of different nutrient elements in soils were mainly controlled by the types of soil and land use.For example,N content in paddy fields showed an obvious trend of enrichment but depletion in woodland,vegetable fields and dry land.P concentration in vegetable fields,garden fields and dry land presented significant enrichment,while in paddy fields shows a trend of depletion.

关 键 词：土壤地球化学调查 植物营养元素 时空变化 龙游北部 浙江省 

分 类 号：P595[天文地球—地球化学] X142[天文地球—地质学]