检索结果-南通市图书馆

Biochar and soil properties limit the phytoavailability of lead and cadmium by Brassica chinensis *** contaminated soils

引用

Biochar 2022年第1期4卷 1102-1116页

作者： assa albert houssou Paramsothy Jeyakumar Nabeel Khan Niazi Lukas Van Zwieten Xiang Li Lianxi Huang Lan Wei Xiaodong Zheng Qing Huang Yufen Huang Xianzhi Huang Hailong Wang Zhongzhen Liu Zhenrui Huang Key Laboratory of Plant Nutrition and Fertilizer in South Region Ministry of AgricultureGuangdong Key Laboratory of Nutrient Cycling and Farmland ConservationInstitute of Agricultural Resources and EnvironmentGuangdong Academy of Agricultural SciencesGuangzhou 510640China Environmental Sciences School of Agriculture and EnvironmentMassey UniversityPrivate Bag 11222Palmerston North 4442New Zealand Institute of Soil and Environmental Sciences University of Agriculture FaisalabadFaisalabad 38040Pakistan Wollongbar Primary Industries Institute NSW Department of Primary IndustriesWollongbarAustralia State Key Laboratory of Silkworm Genome Biology Chongqing 400715China Guangdong Provincial Engineering&Technology Research Center for Tobacco Breeding and Comprehensive Utilization Crops Research InstituteGuangdong Academy of Agricultural SciencesGuangzhou 510640China Biochar Engineering Technology Research Center of Guangdong Province School of Environmental and Chemical EngineeringFoshan UniversityFoshan 528000China Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province Zhejiang A&F UniversityHangzhou 311300China

The current study investigated the effect of biochars derived from cinnamomum woodchip,garden waste and mulberry woodchip on soil phytoavailable lead(Pb),cadmium(Cd)pools,and their uptake by Chinese cabbage(Brassica chinensis L.).The biochars were produced at 450℃of pyrolysis *** contaminated soils were collected from Yunfu(clas-sified as Udept),Jiyuan(Ustalf)and Shaoguan(Udult)cities in China at the depth of 0-20 cm and amended with biochars at the rate of 3%w/*** mixing the soil with biochar for 14 days,the Chinese cabbage was planted in the amended ***,it was harvested on the 48th day after sowing *** Udult soil,Chinese cabbage died 18 days after sowing period in control and soils amended with cinnamomum and mulberry *** only plants grown with the garden waste biochar treatment survived in Udult soil,amendment of garden waste or mulberry biochars at 3%w/w(450℃)to Udult soil significantly increased(4.95-6.25)soil pH compared to other biochar *** Udept and Ustalf soils,the application of garden waste and mulberry biochars significantly improved plant biomass compared to control,albeit it was dependent on both biochar and soil *** waste biochar significantly decreased soil Cd phytoavailable concentration by 26%in the Udult soil,while a decrease of soil Cd phytoavailable concentration by 16%and 9%was observed in Ustalf and Udept soils,*** available phosphorus in biochar and soil pH were important factors controlling toxic metal phytouptake by the ***,the amendment of soil with biochar at 3%can effectively reduce the mobility of Cd and Pb in soil and plant ***,biochar and soil properties should be well-known before being used for soil toxic metal immobilization.

关键词： Contaminant Feedstock Available P Soil pH,heavy metal

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Characterization of biochars from woody agricultural wastes and sorption behavior comparison of cadmium and atrazine

引用

Biochar 2022年第1期4卷 736-747页

作者： Xiang Li Yufen Huang Xiaoliang Liang Lianxi Huang Lan Wei Xiaodong Zheng houssou assa albert Qing Huang Zhongzhen Liu Zhaojun Li Institute of Agricultural Resources and Environment Guangdong Academy of Agricultural SciencesGuangzhou 510640GuangdongChina Guangdong Provincial Key Laboratory of Mineral Physics and Materials Guangzhou 510640China Institute of Animal Science and Veterinary Medicine Shandong Academy of Agricultural SciencesNo.202 Industrial North RoadJinan 250100ShandongChina

Woody agricultural wastes have created enormous pressure on the *** this study,mulberry and cinnamon woodchips were reclaimed and prepared for biochars through pyrolysis technique at four different *** properties showed that mulberry biochar exhibited higher pH,CEC and ash content than cinnamon biochar at each *** biochars were utilized as adsorbents to remove cadmium(Cd)and atrazine(AT)from *** adsorption isotherms were found to be well fitted by Freundlich and Langmuir *** maximum adsorption capacities were 5306.41 mg/kg for Cd adsorption and 538.89 mg/kg for AT adsorption,***,the principal component analysis,XPS and FTIR analysis proved that precipitation with phosphate in biochars acted as the key property that governed the adsorption capacity of Cd,whereas the porosity demonstrated a significant impact on the adsorption capacity of *** least squares(PLS)model was considered to be more favorable for predicting AT adsorption than Cd *** results of the present paper will be helpful for selecting most effective biochars from locally available woody agricultural byproducts that are optimized for contaminants removal from environment.

关键词： Biochar Adsorption Heavy metal Atrazine Correlation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

施氮量对夏玉米根际和非根际土壤酶活性及氮含量的影响

引用

应用生态学报 2016年第6期27卷 1917-1924页

作者：梁国鹏 houssou A.albert 吴会军武雪萍蔡典雄高丽丽李景王碧胜李生平中国农业科学院农业资源与农业区划研究所/耕地培育技术国家工程实验室北京100081

在华北平原潮土上进行田间试验,研究施氮量对夏玉米根际和非根际土壤酶活性及氮含量的影响.结果表明:不同施氮水平下土壤酶活性均表现出一致的季节性变化趋势.与不施氮处理相比,施氮处理能显著提高根际和非根际土壤硝态氮含量及根际土... 详细信息

在华北平原潮土上进行田间试验,研究施氮量对夏玉米根际和非根际土壤酶活性及氮含量的影响.结果表明:不同施氮水平下土壤酶活性均表现出一致的季节性变化趋势.与不施氮处理相比,施氮处理能显著提高根际和非根际土壤硝态氮含量及根际土壤铵态氮含量,显著增强土壤几丁质酶、β-葡萄糖苷酶、纤维素酶和木聚糖酶活性.在整个玉米生育期内,非根际土壤硝态氮含量显著高于根际土壤;非根际土壤铵态氮含量在灌浆期显著高于根际土壤,但在苗期和完熟期则显著低于根际土壤;根际土壤几丁质酶、β-葡萄糖苷酶、纤维素酶和木聚糖酶活性都显著高于非根际土壤.施氮对土壤有机质含量没有显著影响;在0~180 kg·hm^(-2)施氮范围内,施氮可明显增加土壤全氮含量,但当施氮量超过180 kg·hm^(-2)时,土壤全氮含量则明显下降.综上,适量施氮能显著增强土壤酶活性,提高土壤全氮含量,改善土壤生化性质.

关键词：施氮量根际土壤酶活性无机氮

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

桑树枝和肉桂枝生物炭吸附及钝化土壤镉效果比较

引用

广东农业科学 2022年第3期49卷 96-105页

作者：黄玉芬杜毅王钰静周丽萍 houssou assa albert 黄连喜魏岚刘忠珍广东省农业科学院农业资源与环境研究所广东广州510640 长春市双阳区生态环境监测站吉林长春130600 广州市南沙区农业农村服务中心广东广州511455 肇庆学院生命科学学院广东肇庆526040

【目的】探讨桑树枝和肉桂枝生物炭对水和土壤环境中镉(Cd)污染的修复效果,为实现木质农林废弃物的资源化利用和Cd污染环境修复提供理论依据。【方法】将桑树枝和肉桂枝置于400℃慢速热裂解2 h制备生物炭,采用等温吸附试验研究其吸附Cd... 详细信息

【目的】探讨桑树枝和肉桂枝生物炭对水和土壤环境中镉(Cd)污染的修复效果,为实现木质农林废弃物的资源化利用和Cd污染环境修复提供理论依据。【方法】将桑树枝和肉桂枝置于400℃慢速热裂解2 h制备生物炭,采用等温吸附试验研究其吸附Cd特征,通过盆栽试验检验其钝化土壤Cd以及阻止小白菜吸收富集Cd的作用效果。【结果】桑树枝生物炭(MB400)和肉桂枝生物炭(CB400)对Cd的吸附均可用Langmuir等温吸附模型进行拟合,最大吸附容量(Q0)分别达到4 305.61、442.77 mg/kg,MB400吸附Cd的能力较强,这可能与其pH值、灰分(Ash)、阳离子交换量(CEC)和有效磷(AP)含量较高有关。添加MB400可显著降低土壤中有效态镉(AvCd)含量,但CB400处理没有显著效果。添加3%的两种生物炭,小白菜生物量明显提高,Cd的生物富集因子(BCF值)从对照的5.95分别降至4.29(MB400)和4.85(CB400)。【结论】两种生物炭对Cd具有较强的吸附能力,能够钝化土壤Cd,阻止小白菜吸收富集,且桑树枝生物炭的效果更好。

关键词：桑树枝肉桂枝生物炭镉等温吸附小白菜

来源：

维普期刊数据库博看期刊

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：