检索结果-南通市图书馆

Overview on current criteria for heavy metals and its hint for the revision of soil environmental quality standards in China

引用

Journal of Integrative Agriculture 2018年第4期17卷 765-774页

作者： CHEN Shi-bao WANG Meng LI Shan-shan ZHAO Zhong-qiu E Wen-di Key Laboratory of Plant Nutrition and Fertilizer Ministry of Agriculture/Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural Sciences School of Land science and Technology China University of Geosciences National Agricultural Technology Extension and Service Center Ministry of Agriculture

Following rapid social and economic development over the past several decades, soil pollution by heavy metals(HMs) has been both serious and widespread in China. The soil Environmental Quality Standards(SEQSs) in China(GB 15618-1995) have been introduced to encourage and enforce sustainable soil HM management. However, in recent years, HM contents in soils have frequently been found to exceed their associated standard values, while the crops growing on them might still meet regulatory standards, and vice versa. There is thus growing awareness that GB 15618-1995 does not effectively regulate current soil HM pollution, as it has encountered bottlenecks, and disappointing outcomes caused by poor execution along with deficiencies and gaps in the policies. However, due to the deficiency of scientific research about relationships between soil HM concentrations and their ecological or human health effects, the development of SEQSs in China is still greatly restricted. This paper discusses international SEQSs of HMs as well their development in China over time, then examines current Chinese SEQSs to demonstrate their potential regulatory deficiencies by referring to international SEQSs. The corresponding legislative policies are described, and scientific information or responses are outlined for maintaining soil environmental quality. China’s experience has shown that policy and science can be linked to work in tandem to better understand and manage soil quality issues.

关键词： soil heavy metals regulatory standards soil science policy

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

Transition along gradient from warm to mesic temperate forests evaluated by GAMM

引用

Journal of Plant Ecology 2016年第4期9卷 421-433页

作者： AndražČarni Vlado Matevski Nina Juvan Mitko Kostadinovski Petra Košir Aleksander Marinšek Andrej Paušič UrbanŠilc Institute of Biology Research Centre of the Slovenian Academy of Sciences and ArtsNovi trg 2SI-1000 LjubljanaSlovenia University of Nova Gorica Vipavska 13SI-5000 Nova GoricaSlovenia Macedonian Academy of sciences and Arts Bul.Krste Misirkov2P.O.Box 428MK-1000 SkopjeRepublic of Macedonia Faculty of Natural sciences and Mathematics Institute of BiologyUniversity of Ss.Cyril and MethodiusGazi Baba b/b-P.O.Box 162MK-1000 SkopjeRepublic of Macedonia Anton Melik Geographical Institute Research Centre of the Slovenian Academy of Sciences and ArtsNovi trg 2SI-1000 LjubljanaSlovenia Faculty of Mathematics Natural Sciences and Information TechnologiesUniversity of PrimorskaGlagoljaška 8SI-6000 KoperSlovenia Slovenian Forestry Institute Večna pot 2SI-LjubljanaSlovenia Kranjčeva 8 SI-9220 LendavaSlovenia Biotechnical Centre Naklo Strahinj 99SI-4202 NakloSlovenia

Aims The aim of the study was to discover what set of variables best explains the transition from warm to mesic forest *** on various variables grouped into sets(geomorphological,ecological,structural,soil characteristics and chorological),six models were built and tested by generalized additive mixed models(GAMMs).We assumed that each set of variables has different explanatory *** aim was to compare the six different models(sets of variables),to test which model best explains the species turnover in forest communities along the transition between warm and mesic temperate forests and to try to find reasons for the different explanatory power of the *** The research took place in the southern part of the Balkan *** sampling was done according to standard *** gradient from warm to mesic forests was defined as the turnover of species and evaluated by projection of samples on the first unconstrained DCA ***,ecological,structural and soil characteristics,together with chorological sets of variables,were regressed on the turnover of species *** on the five sets of variables,six models were constructed and tested by generalized additive mixed *** Findings Ecological conditions best explain the change of forest communities along the gradient;evolution and the development of vegetation reflected in chorotypes are also of high importance;geomorphology and structure seem not to change so dramatically and soil shows the least significant differences of *** variables are the most important set of variables in the transition between warm and mesic temperate forests but eco-evolutionary dynamics after the Pleistocene should also be taken into consideration.

关键词： Balkan chorotypes life forms ecology plant ecology soil science vegetation evolution refugium

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

Microfluidic hotspots in bacteria research:A review of soil and related advances

引用

soil Ecology Letters 2023年第1期5卷 21-37页

作者： Hengyi Dai Yajuan Zhuang Erinne Stirling Nanlin Liu Bin Ma College of Environmental and Resource sciences Zhejiang UniversityHangzhou 310058China Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment Hangzhou 310058China Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311200China Acid Sulfate soils Centre School of Biological SciencesThe University of AdelaideAdelaide 5005Australia

soil science is an inherently diverse and multidisciplinary subject that cannot develop further without the continuous introduction and promotion of emerging *** such technology that is widely used in biomedicine and similar research fields,microfluidics,poses significant benefits for soil research;however,this technology is still underutilized in the *** offers unparalleled opportunities in soil bacterial cultivation,observation,and manipulation when compared to conventional approaches to these *** review focuses on the use of microfluidics for bacteria research and,where possible,pulls from examples in the literature where the technologies were used for soil related *** review also provides commentary on the use of microfluidics for soil bacteria research and discusses the key challenges researchers face when implementing this *** believe that microfluidic chips and their associated auxiliary technologies provide a prime inroad into the future of soil science research.

关键词： soil science Microfluidics Bacteria Research hotspots Technology trends

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

Pedosphere and Its Effect on Global Changes

引用

Pedosphere 2000年第2期10卷 97-106页

作者： ZHAO QIGUO and CAO HUI(Institute of soil science, the Chinese Academy of sciences, P.O. Box 821, Nauling 210008 China) 中科院南京土壤所江苏南京 210008

With development of modern geoscience, particularly development of environmental sciences, the contemporary soil science is undergoing great changes in both research contents and scope. soil is not onlya certain substance or a certain independent natural historical body but also a spheric layer with peculiarstructure and functions in the earth system. From the viewpoint of the geo-biosphere system of earth, soilscience does deal not only with the soil substances per se but also more importantly with the relationshipsamong soil, the other spheres and the human survival environment in view of the "pedosphere". This is thenew orientation of soil science today and will affect profoundly the studies on the human survival environmentand global changes. To throw more light on this subject, the present paper intends to address the conceptionof pedosphere and its role in global changes. Also addressed are series of environmental issues in China andtheir relations to the global changes. Moreover, research orientation and priorities are indicated, includingexploitation and protection of the soil resources, soil fertility and sustainable agricultural development, construction of the ecological environment, and the material cycling in pedosphere and its relation to globalchanges.

关键词： earth ecological environment global changes pedosphere soil science

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

Landscape Erosion and Evolution Modeling 1

引用

2001年

作者： Russell S. Harmon William W. Doe

ISBN: (数字)9781461505754

ISBN: (纸本)9780306467189;9781461351399

Landscapes are characterized by a wide variation, both spatially and temporally, of tolerance and response to natural processes and anthropogenic stress. These tolerances and responses can be analyzed through individual landscape parameters, such as soils, vegetation, water, etc., or holistically through ecosystem or watershed studies. However, such approaches are both time consuming and costly. soil erosion and landscape evolution modeling provide a simulation environment in which both the short- and long-term consequences of land-use activities and alternative land use strategies can be compared and evaluated. Such models provide the foundation for the development of land management decision support systems.;is a state-of-the-art, interdisciplinary volume addressing the broad theme of soil erosion and landscape evolution modeling from different philosophical and technical approaches, ranging from those developed from considerations of first-principle soil/water physics and mechanics to those developed empirically according to sets of behavioral or empirical rules deriving from field observations and measurements. The validation and calibration of models through field studies is also included.;This volume will be essential reading for researchers in earth, environmental and ecosystem sciences, hydrology, civil engineering, forestry, soil science, agriculture and climate change studies. In addition, it will have direct relevance to the public and private land management communities.

关键词： Geology soil science

来源：畅想之星图书光盘版（南... 评论

在线全文

畅想之星图书光盘版（南通市图书馆镜像）

学校读者我要写书评

暂无评论

Discussion on soil Sampling Technology Based on the Experience of Yuanzegou Small Watershed

引用

Asian Agricultural Research 2022年第3期14卷 36-37页

作者： Tingting MENG Liangyan YANG Shaanxi Provincial Land Engineering Construction Group Co. Ltd.Xi'an 710075China Institute of Land Engineering and Technology Shaanxi Provincial Land Engineering Construction Group Co.Ltd.Xi'an 710075China Key Laboratory of Degraded and Unused Land Consolidation Engineering Ministry of Natural ResourcesXi'an 710075China Shaanxi Engineering Research Center of Land Consolidation Xi'an 710075China

Based on the experience of soil sampling in Yuanzegou small watershed,several matters needing attention in soil field sampling are *** paper focuses on the layout of sampling points,soil sample collection,soil sample preparation and matters needing attention about potential factors in soil field sampling,with a view to providing reference for undergraduates,master students or non-subject experimenters who are about to carry out experiments in this discipline.

关键词： soil science Field sampling Matters needing attention

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

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

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

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：