检索结果-南通市图书馆

Efficiency of KOH-modified rice straw-derived biochar for reducing cadmium mobility, bioaccessibility and bioavailability risk index in red soil

引用

Pedosphere 2020年第6期30卷 874-898页

作者： Saqib BASHIR Qaiser HUSSAIN Jun ZHU Qingling FU david houben Hongqing HU Key Laboratory of Arable Land Conservation Middle and Lower Reaches of Yangtse RiverMinistry of AgricultureCollege of Resources and EnvironmentHuazhong Agricultural UniversityWuhan 430070China Department of Soil and Environmental Science Ghazi UniversityDera Ghazi Khan 32200Pakistan Department of Soil Science&SWC PMAS-Arid Agriculture UniversityRawalpindi 46300Pakistan AGHYLE UniLaSalleBeauvais 60011France

Cadmium(Cd)pollution in agricultural soils has exerted a serious threat due to continuous application of pesticides,fertilizers,and wastewater *** present study aimed to test the efficiency of KOH-modified and non-modified rice straw-derived biochar(KBC and BC,respectively)for reducing Cd solubility and bioavailability in Cd-contaminated ***-contaminated soil was incubated for 60 d with 15 and 30 g kg-1 BC and *** the end of incubation,Cd mobility was estimated by the European Community Bureau of Reference sequential extraction and toxicity characteristic leaching procedure(TCLP),while bioavailability was determined using 1 molL-1 NH4NO3 *** bioavailability risk index and bioaccessibility,assessed by a simple bioaccessibility extraction test,of Cd were used to examine the potential effects of Cd on living *** results indicated that application of both KBC and BC significantly increased soil p H,cation exchange capacity,nutrients,and organic *** soluble fraction of Cd was significantly decreased by 30.3%and 27.4%,respectively,with the addition of KBC and BC at 30 g kg-1 compared to the control(without biochar addition).Similarly,the bioaccessible Cd was significantly decreased by 32.4%and 25.2%,respectively,with the addition of KBC and BC at 30 g kg-1 compared to the *** addition,both KBC and BC significantly reduced Cd leaching in the TCLP and NH4NO3-extractable Cd in the amended soil compared to the *** reduction in Cd solubility and bioaccessibility by KBC and BC may be due to significant increases in soil pH and surface ***,KBC at an application rate of 30 g kg-1 demonstrated positive results as soil amendment for Cd immobilization,and reduced bioaccessible Cd in contaminated soil.

关键词： bioaccessible Cd Cd fractionation Cd immobilization NH4NO3-extractable Cd sequential extraction soilpH

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

AGRI-ENVIRONMENTAL ASSESSMENT OF CONVENTIONAL AND ALTERNATIVE BIOENERGY CROPPING SYSTEMS PROMOTING BIOMASS PRODUCTIVITY

引用

Frontiers of Agricultural Science and Engineering 2022年第2期9卷 284-294页

作者： Léa KERVROEDAN david houben Julien GUIDET Julia DENIER Anne-Maimiti DULAURENT Elisa MARRACCINI Amandine DELIGEY Charlotte JOURNEL Justine LAMERRE Michel-Pierre FAUCON UniLaSalle Polytechnic Institute AGHYLE(SFR Condorcet FR CNRS 3417)19 rue Pierre Waguet60026 BeauvaisFrance UniLaSalle Polytechnic Institute InTerACT(UP 2018.C102)19 rue Pierre Waguet60026 BeauvaisFrance Department of Agricultural FoodEnvironmental and Animal SciencesUniversity of UdineVia delle Scienze 20633100UdineItaly Agro-Transfert Ressources et Territoires 2 Chaussée de Brunehaut80200 Estrées MonsFrance

Bioenergy,currently the largest renewable energy source in the EU(64%of the total renewable energy consumption),has sparked great interest to meet the32%renewable resources for the 2030 bioeconomy *** design of innovative cropping systems informed by bioeconomy imperatives requires the evaluate of the effects of introducing crops for bioenergy into conventional crop *** study aimed to assess the impacts of changes in conventional cropping systems in mixed dairy cattle farms redesigned to introduce bioenergy crops either by increasing the biomass production through an increase of cover crops,while keeping main feed/food crops,or by substituting food crops with an increase of the crop rotation *** assessment is based on the comparison between conventional and innovative systems oriented to feed and biogas production,with and without tillage,to evaluate their agri-environmental performances(biomass production,nitrogen fertilization autonomy,greenhouse gas emissions and biogas production).The result showed higher values in the biogas cropping system than in the conventional and feed ones for all indicators,biomass productivity(27%and20%higher,respectively),nitrogen fertilization autonomy(26%and 73%higher,respectively),methanogenic potential(77%and 41%higher,respectively)and greenhouse gas emissions(15%and 3%higher,respectively).There were no negative impacts of no-till compared to the tillage practice,for all tested *** biogas cropping system showed a better potential in terms of agri-environmental performance,although its greenhouse gas emissions were ***,it would be appropriate to undertake a multicriteria assessment integrating agri-environmental,economic and social performances.

关键词： alternative cropping systems bioeconomy biogas biomass production fertilization autonomy greenhouse gas assessment

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

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

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

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：