soil相关论文
The selection of stable wavebands for the near-infrared (NIR) spectroscopic analysis of total nitrogen (TN) in soil was ......
由于甲醛(HCHO)在城市大气光化学反应中的重要性,测量大气环境中的甲醛已经成为全球的热点。针对目前国内检测甲醛的方法基本局限......
采用激光诱导击穿光谱法(LIBS)对土壤进行了研究。激光器采用的是Nd: YAG脉冲激光器, 激光器的输出波长是1 064 nm, 脉宽是5.82 ns......
由于自由定标法-激光诱导击穿光谱(CF-LIBS)需要元素归一化,多元素同时参与计算,土壤中微量元素谱线较弱,计算Saha-Boltzmann斜线困难......
在室内条件下提取了苯乙烯在不同土壤中的光谱诊断波段及其范围,并以其作为土壤中苯乙烯识别及其含量预测的依据。采用微分处理法......
速效氮含量的预测在土壤养分诊断中具有重要意义,通过特征选择和回归预测算法可有效地提高速效氮光谱检测模型的预测精度。选取了......
利用Nd:YAG激光器、OceanHR2000 ICCD光谱仪建立激光诱导击穿光谱(LIBS)实验系统,设置合理的实验参数得到土壤样品LIBS数据,利用基于......
当前土壤中的重金属污染日益严重, 研究开发便携式土壤重金属快速、现场检测技术设备能为土壤重金属污染状况普查提供快速、有效的......
W hen I profess my affection for fake flowers, I often feel as though I’m confessing a character flaw. They have, to say ......
Prevalence of Soil-Transmitted Helminths and Intestinal Protozoa among School Children in Lome, Togo
<strong>Background:</strong><span style=“font-family:Verdana;”> Significant morbidity in children is associated with i......
通过室内土培实验,分析添加赤泥、沸石、油菜秸秆、磷矿粉和生物炭等5种改良剂对矿区土壤As的化学形态和生物可给性的影响.结果表......
通过水稻盆栽实验,开展了全生育期淹水灌溉和湿润灌溉二种水分管理模式条件下,施用不同量尿素对土壤镉污染钝化修复效应及微生物结......
土壤重金属污染已经成为一个全球性环境问题。主要对目前国内外土壤重金属污染情况、污染的生态危害以及目前主要的土壤重金属污染......
A 10-Yr Global Land Surface Reanalysis Interim Dataset (CRA-Interim/Land):Implementation and Prelimi
A land surface reanalysis dataset covering the most recent decades is able to provide temporally consistent initial cond......
Recent assessment of global tree restoration potential reports that under current climate conditions there would be room......
The spectral characteristic of laser-induced plasma in soil was studied in this work,laser-induced breakdown spectroscop......
目的 了解山东省高密市和淄博市淄川区环境和人体硒水平.方法 选择高密市李家营镇和淄博市淄川区寨里镇、龙泉镇为调查镇.以调查镇......
目的评估甘肃省6个生态类型区孕妇碘营养状况,为重点人群科学补碘提供理论依据。方法将甘肃省划分为荒漠区、河西走廊戈壁区、黄土......
目的 调查山西省饮水型慢性砷中毒病区环境介质水、土壤以及自产粮食、蔬菜中的砷含量,了解该病区外环境中砷暴露水平,为病区地方......
目的 探索土壤中的化学元素与氟斑牙的关系,为地方性氟中毒的防治提供科学依据.方法 2011年,在巫山县与奉节县的55个乡(镇)中,采取......
目的了解雅鲁藏布江南北两岸环境硒分布特征及其与大骨节病的关系,为西藏大骨节病的防治提供科学参考。方法根据病情分布及自然地理......
目的探讨燃煤污染型砷中毒患者头发、尿中砷、硒含量与病情程度的关系。方法选取燃烧蒿坪高砷石煤的紫阳县蒿坪镇和双安镇作为调查......
目的对比分析云南省3个鼠疫自然疫源地鼠洞土壤8种金属元素含量。方法对玉龙县、剑川县、梁河县3个鼠疫疫源地鼠洞土壤进行采样,应......
目的了解目前青海省大骨节病历史重病区内、外环境硒及T-2毒素水平。方法2018年在青海省兴海县、贵德县、班玛县3个历史重病区县,分......
目的了解广西环境重金属污染重点地区土壤及食物砷含量水平。方法于2014—2016年,在广西3个重金属污染重点防控区选择污染较严重的......
[Objectives] This study was conducted to investigate the effects of Yanan gully land reclamation project on farmland soi......
"土壤系统"应该清账,"土壤血统"应该净化,"腐植酸"应该正本清源。在"土壤系统"中,理顺"有机质*优化腐殖质优化腐殖酸"的脉道很重要。向"土壤系......
Ground subsidence is an emerging geological hazard in Baotou,Inner Mongolia.Four areas of Baotou with relatively large s......
The shear properties of ice-frozen soil interface are important when studying the constitutive model of frozen soil and ......
环境保护部标准样品研究所组织16家实验室开展了土壤中有机氯农药检测实验室间比对,以考察实验室分析土壤中有机氯农药的能力.实验......
采用漫反射傅里叶变换红外光谱(DRIFTS)法同时定量分析了土壤中硫酸根和硝酸根的含量。硫酸根分析选择600cm~(-1)处的特征吸收峰作......
The paper shows the novel techniques introduction in the region of Latin America and the Caribbean in order to strengthe......
本文简要介绍了包括三部分观测的安徽淮南长期野外试验观测站,特别是土壤-植被-大气的集中观测,对小塔运行前三个月(2018年6月至8......
土壤中的重金属污染会影响农产品品质,进而对人体的健康产生危害.土壤中多种重金属元素通常使用化学法进行检测,需要在实验室使用......
Concentrations and distribution of novel brominated flame retardants in the atmosphere and soil of N
Novel brominated flame retardants (NBFRs) were investigated in Arctic air and soil samples collected from Ny-(A)lesund a......
将激光诱导击穿光谱技术与双谱线定量分析方法结合对土壤中镁元素进行分析,选取镁(Mg)元素的383.8nm原子谱线和823.5nm离子谱线作......
本文阐述了保护性耕作的概念,总结了保护性耕作对土壤物理肥力、化学肥力和生物肥力的影响,展望了保护性耕作技术在农业可持续发展......
为研究金矿开采区土壤典型污染物空间分布特征,2012年4月在夹皮沟金矿区内按网格法布点,采集了28处土壤样品,对样品pH值、有机质、......
为减少传统基质中草炭、蛭石、膨胀珍珠岩等不可再生资源的开发,降低烤烟育苗成本,利用耕作层土壤、火土、农家肥、营养液肥料的混......
This paper presents the results of natural radioactivity measured for the soil of Qena using gamma-ray spectrometry at Z......
Distribution and quantification of Pb in an evergreen broadleaved forest in three hydrological years
The distribution,quantification and fluxes of Pb were examined in an evergreen broadleaved forest in western Greece for ......
Microbial remediation of a pentachloronitrobenzene-contaminated soil under Panax notoginseng: A fiel
Pentachloronitrobenzene (PCNB) is an organochlorine fungicide that is mainly used in the prevention and control of disea......
Soil microbial attributes along a chronosequence of Scots pine (Pinus sylvestris var.mongolica) plan
Soil microorganisms play a key role in soil organic matter dynamics,nutrient cycling,and soil fertility maintenance in f......
This paper took the soil of dominant thickets in central Yunnan province as the research object, analyzed the SOC distri......
Natural organic matter (NOM) is known to play an important role in the transport and binding of trace metal elements in ......
为了提高激光诱导击穿光谱(L IBS )技术对土壤中重金属元素的检测灵敏度,降低检测限,以国家标准土壤中Cr元素为研究对象,实验时,在LIBS装......
溶解性有机物(DOM )通过吸附、竞争吸附、增溶、加速降解等作用影响着农药在土壤环境中的行为,对土壤生态系统及地下水环境的污染与风......
激光诱导击穿光谱(LIBS)技术结合支持向量机(SVM)定量分析土壤中Cr元素的含量。利用波长为1 064nm的Nd∶YAG脉冲激光器作为激发光......