Research Progress on the Migration, Enrichment and Risk Assessment of Heavy Metals in a Soil-Grape System [PDF]
As potentially toxic elements, the pollution level of heavy metals in vineyard soils directly affects the ecosystem balance and human health. This study analyzes the current related literature, focusing on the characteristics of heavy metal content in ...
Chang LI +8 more
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Shuitu Baochi Xuebao, 2008 以中亚带常绿阔叶林和杉木林为对照,对闽北典型竹林土壤微团聚体分形维数变化特征及其与土壤物理性质、化学性质、土壤酶活性及微生物数量的关系进行了研究,结果表明:>0.25 mm和0.05~0.01 mm颗粒含量越高,0.25~0.05 mm,0.005~0.001 ...
ZHANG Chang-shun +2 more
doaj
The Impact of Mixed Application of Modified Straw Biochar and Organic Fertilizer on Soil Water Retention and Fertility Maintenance in the Loess Hilly Dry Area [PDF]
[Objective] This study aimed to investigate the effects of different modified corn straw biochars on the water retention and fertilizer conservation capacity of arid loess soil and their effects on crop growth.
CHANG Fangling +5 more
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Shuitu Baochi Xuebao, 2008 研究了不同侵蚀强度下土壤磁化率及其与土壤化学性质的关系,结果表明:土壤pH、有机质含量和各形态氧化铁含量均与磁化率呈正相关,且氧化铁含量与磁化率呈极显著正相关,表明土壤不同形态氧化铁含量的多少是影响坡面土壤磁化率变化的关键因素。土壤侵蚀导致坡面物质的再分布,从而使土壤pH、有机质、氧化铁含量等土壤化学性质随之发生变化,这些因素随着侵蚀的强弱而发生变化,是影响坡面侵蚀土壤磁性变化的根源。
马玉增 +4 more
doaj +2 more sources
Soil Preferential Flow Characteristics in Coal Mine Subsidence Area under Different Rainfall Duration [PDF]
[Objective] Research on the preferential flow characteristics triggered by cracks in coal mining subsidence areas can provide support for scientific and rational development of water resource management and ecological management practice in the mining ...
DAI Bin +4 more
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Photocatalytic Degradation of Tetracyclines by TiO2/Molecular Sieves and Assessment of Residual Antibacterial Activity [PDF]
, 2017 四环素类抗生素广泛用于人类医疗、畜牧业、渔业等，当进入人体或动物体后，主要以未代谢的原型排入污水系统或直接排入水环境。医院、药厂、牧场和渔场排污中常常含有四环素类抗生素。另外，由于四环素类抗生素的稳定性和抗菌特性，污水处理厂的传统生物处理无法将其处理干净。环境中存在抗生素容易引起微生物的抗药性，对环境健康和人类健康都构成严重威胁。为了处理污水中的抗生素，很多高级氧化法发展起来，例如将纳米TiO2负载到其他材料上的复合光催化剂得到发展。其中，分子筛是一种吸附性能很好地材料，能很好地负载TiO2 ...
谢晓丹
core
Soil Quality Assessment of Five Typical Forest Stands in the Dianchi Lake Basin based on MDS [PDF]
[Objective] Soil quality is a critical indicator of ecosystem health and sustainable land management. [Methods] Key soil quality indicators (e.g., organic matter, total nitrogen, available nitrogen, capillary porosity, and pH) were identified through ...
HUANG Shuai +4 more
core +1 more source
Shuitu Baochi Xuebao, 2004 根据西藏16个土类168个土壤剖面的分析资料,探讨土壤有机质和氮素状况及其影响因素。西藏土壤有机质>30g/kg和20～30g/kg的面积分别占39%和46%;其地理分布既有广阔高原面上的水平地带性变化,也有山地和深切河谷的垂直地带性变化。土壤有机质中活性腐殖质一般占30%～45%,以酸性土中的比例较大。土壤全氮>1 5g/kg,1 0～1 5g/kg和150mg ...
刘世全 高丽丽 蒲玉琳 邓良基 张世熔
doaj
Study on the migration of As and P in the Avicennia Marina-Soil system under P and As interaction [PDF]
, 2017 红树林作为生长在热带、亚热带河口海湾地区的木本植物，具有极高的生态价值和经济价值。近年来由于As在工农业生产活动中的大范围使用，以及含As废水的肆意排放使得其在红树林沉积物中富集，导致红树林中As污染情况日益加重。鉴于红树林环境中的As会通过食物链传递，对生物多样性造成威胁，因而探讨As在红树林湿地的生物地球化学过程具有重要意义。P与As属同族，不仅在物理属性上类似，在植物吸收富集系统上亦有较多相似之处。已有研究表明，As、P之间存在明显的交互效应，所以As和P在红树林沉积物中的关系值得探究 ...
周仪
core
Remote sensing estimation on regional continuous daily evapotranspiration based on Richards equation [PDF]
Evapotranspiration (ET) is an important part of water cycle in nature, and the estimation of evapotranspiration on spatio-temporal scale has always been a hot issue. Remote sensing can estimate evapotranspiration on regional scale, but it is difficult to
Jinling KONG +4 more
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