检索结果-南通市图书馆

Effects of acid deposition control in China:a review based on responses of subtropical forests

Frontiers of Environmental Science & Engineering 2024年第6期18卷 115-126页

作者： Danni Xie Xiaodong Ge Lei Duan jan mulder School of Land Engineering Chang’an UniversityXi’an 710064China State Key Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing 100084China Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life SciencesBox 5003NO-1432ÅsNorway

For many decades,acid deposition used to pose a significant regional air pollution challenge in *** substantial emission control of anthropogenically derived sulfur and nitrogen containing gasses,both sulfur and nitrogen deposition,as well as the acid rain-affected area,have significantly decreased compared to their peak ***,particularly in the humid subtropics,are sensitive to acid deposition,as evidenced by soil acidification,sulfate and nitrate leaching in stream water,and elevated soil nitrous oxide *** in the total deposition of sulfur and nitrogen,caused a significant decline in sulfate and nitrate leaching from subtropical forest and subsequently in sulfate and nitrate concentrations in stream water,although there was about a 5-year *** delay may be attributed to the desorption of accumulated sulfate and continued elevated mineralization of accumulated nitrogen *** of nitrous oxide,a potent greenhouse gas,also declined in nitrogen-saturated subtropical forest soils,as soil water nitrate concentration ***,subtropical forests in China suffering from elevated acid deposition have begun to ***,the current levels of sulfur and nitrogen deposition continue to exceed the critical loads,i.e.,the assigned threshold levels in accordance with emission control policies,in more than 10%of the country’s land area,respectively,indicating remaining risks of acidification and ***,further emission reductions are urgently needed,also because they will help achieving goals related to air quality and nitrous oxide emissions.

关键词： Acidification Critical load Nitrous oxide Surface water chemistry Recovery

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

A probe into the acid deposition mitigation path in China over the last four decades and beyond

引用

National Science Review 2024年第4期11卷 84-92页

作者： Qian Yu Xiaodong Ge Haotian Zheng Jia Xing Lei Duan Dongwei Lv Dian Ding Zhaoxin Dong Yisheng Sun Posch Maximilian Danni Xie Yu Zhao Bin Zhao Shuxiao Wang jan mulder Thorj?rn Larssen Jiming Hao State Key Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua University State Key Laboratory of Pollution Control &Resource Reuse and School of the Environment Nanjing University State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex School of EnvironmentTsinghua University International Institute for Applied System Analysis(IIASA) School of Land Engineering Chang'an University Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life Sciences Norwegian Institute for Water Research

China currently has the highest acid deposition globally, yet research on its status, impacts, causes and controls is lacking. Here, we compiled data and calculated critical loads regarding acid deposition. The results showed that the abatement measures in China have achieved a sharp decline in the emissions of acidifying pollutants and a continuous recovery of precipitation p H, despite the drastic growth in the economy and energy consumption. However, the risk of ecological acidification and eutrophication showed no significant decrease. With similar emission reductions, the decline in areas at risk of acidification in China(7.0%) lags behind those in Europe(20%) or the USA(15%). This was because, unlike Europe and the USA, China's abatement strategies primarily target air quality improvement rather than mitigating ecological impacts. Given that the area with the risk of eutrophication induced by nitrogen deposition remained at 13%of the country even under the scenario of achieving the dual targets of air quality and carbon dioxide mitigation in 2035, we explored an enhanced ammonia abatement pathway. With a further 27% reduction in ammonia by 2035, China could largely eliminate the impacts of acid deposition. This research serves as a valuable reference for China's future acid deposition control and for other nations facing similar challenges.

关键词： acid deposition critical loads acidification eutrophication ammonia abatement

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Hydrological Responses and Flow Pathways in an Acrisol on a Forested Hillslope with a Monsoonal Subtropical Climate

引用

Pedosphere 2017年第6期27卷 1037-1048页

作者： Lars-Erik SORBOTTEN jannes STOLTE WANG Yanhui jan mulder Norconsult AS N-1338 Sandvika(Norway) Norwegian Institute of Bioeconomy Research(NIBIO) N-1430 Aas(Norway) Research Institute of Forest Ecology Environment and ProtectionChinese Academy of ForestryBeijing 100091(China) Department of Environmental Sciences Norwegian University of Life SciencesN-1432 Aas(Norway)

The nature of subsurface flow depends largely on hydraulic conductivity of the vadoze zone, permeability of the underlying bedrock, existence of soil layers differing in hydraulic properties and macropore content, soil depth, and slope *** of flow pathways on forested hillslopes is essential to understand hydrological dynamics and solute transport ***, with their argic Bt horizons, are challenging in this *** further elucidate flow pathways of water and short-term variability of soil moisture patterns in Acrisols, a field study was conducted on a forested hillslope in a sub-catchment of the Tie Shan Ping(TSP)watershed, 25 km northeast of Chongqing City, *** catchment is covered by a mixed secondary forest dominated by Masson pine(Pinus massoniana).Soil saturated hydraulic conductivity(K sat) was significantly reduced at the interface between the AB and Bt horizons(2.6 × 10^(-5) vs.1.2 × 10^(-6) m s^(-1)), which led to that the flow volume generated in the Bt horizon was of little quantitative importance compared to that in the AB *** was a marked decrease in porosity between the OA and AB horizons, with a further decrease deeper in the mineral ***, the content of soil pores > 300 μm was higher in the AB horizon(14.3%)than in the Bt horizon(6.5%).This explained the difference in soil K sat *** study showed that Bt horizon had limited water transport capability, forcing part of the infiltrated rainwater as interflow through the OA and AB ***, the topsoil responded quickly to rainfall events, causing frequent cycles of saturation and aeration of soil pores.

关键词： dye tracer hillslope hydrology hydraulic conductivity preferential flow soil pores subsurface lateral flow

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

Soil acidification in China’s forests due to atmospheric acid deposition from 1980 to 2050

引用

Science Bulletin 2022年第9期67卷 914-917,M0003页

作者： Qiongyu Zhang Jianxing Zhu Qiufeng Wang Li Xu Mingxu Li Guanhua Dai jan mulder Yue Xi Nianpeng He Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049China Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life SciencesÅs 1431Norway Research Station of Changbai Mountain Forest Ecosystems Chinese Academy of SciencesYanbian 133613China Center for Ecological Research Northeast Forestry UniversityHarbin 150000China

A stable soil pH is essential for maintaining the structure and functions of ecosystems[1].In previous decades,the development model of high energy consumption has rapidly increased the emission of acid *** has not only resulted in the direct input of acidity into the soil but also in the production of acidity through elements cycling,both of which produce protons(Fig.S1 online)[2].Recent studies have shown that atmospheric acid deposition has decreased by more than half compared with that during the *** decrease in acid deposition in Europe and North-America has resulted in recovery of soil acidification[3].

关键词：恢复措施土壤酸化大气沉降酸沉降可持续发展长期监测污染控制氮沉降

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

挪威Storgama小型源头集水区积雪操控实验:对总有机碳和总有机氮淋溶的影响

引用

AMBIO－人类环境杂志 2008年第1期37卷 36-45页

作者： Kari Austnes Φyvind Kaste Live Semb Vestgarden jan mulder 张秋英挪威生命科学大学挪威水研究所

预期未来气候变化将引起冬季温度升高,这可能导致北温带较低和中等高度地区的雪积累降低。土壤温度和水状况的变化结果会影响总有机碳(TOC)、总有机氮(TON)的淋溶。本研究在挪威南部的山地荒野区对小型源头集水区的积雪覆盖进行操控实验... 详细信息

预期未来气候变化将引起冬季温度升高,这可能导致北温带较低和中等高度地区的雪积累降低。土壤温度和水状况的变化结果会影响总有机碳(TOC)、总有机氮(TON)的淋溶。本研究在挪威南部的山地荒野区对小型源头集水区的积雪覆盖进行操控实验,以此来量化对径流中TOC和TON浓度和通量的影响。操控实验包括除雪处理(以促进土壤冻结)和隔离处理(以阻止土壤冻结)。除雪处理导致TOC和TON浓度升高,但通量减少。隔离引起TOC浓度和通量少量降低。研究结果表明,积雪深度变化,因而土壤温度也发生变化,对所研究的山地荒野区的TOC和TON淋溶不会有严重影响。

关键词：总有机碳氮淋溶集水区实验操控积雪源头挪威

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

Screening for Anal Dysplasia in HIV-Infected Men Who Have Sex with Men By Anal Cytology, Human Papillomavirus Testing and Anoscopy

引用

World Journal of AIDS 2011年第2期1卷 37-42页

作者： Eefje Jong jan Willem mulder Anne Catherina Theresia Maria Depla Eric Cornelis Maria van Gorp Johan Westerga Claudie Flohil Anja Johanna Heijne-Tol Paulus Henricus Marinus Smits 不详

The incidence of anal cancer in HIV-infected men who have sex with men (MSM) is increasing and screening is advo-cated. In a cross-sectional study anal cytology specimens from 58 HIV-infected MSM were analyzed for adequacy, cy-tology and HPV DNA testing results and compared to findings on anoscopy. The adequacy of cytology specimens was high. In 34 (63%) of anal swab samples any grade of dysplasia was observed compared to 41 (71%) of biopsy speci-mens. The cytology specimens revealed high-grade dysplasia in 4 (7%) compared to 29 (50%) of biopsy specimens. The prevalence of high-risk HPV types was 90% by using the SPF10 PCR and 81% by using the Hybrid Capture II assay. Because of the high HPV prevalence, HPV DNA testing alone is not a suitable diagnostic screening tool for detecting anogenital lesions in this specific MSM population. Screening should include both anal cytology and anoscopy.

关键词： HIV Men Human Papillomavirus Anal Cancer Screening

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

挪威森林生态系统中的氮在不同大气输入量下的储存和迁移转化

引用

人类环境杂志 1997年第5期26卷 268-275页

作者： jan mulder Patter Nilsen Arne O.Stuanes Magne Huse 胡海瑛

人们对挪威南部和西南部一些森林生态系统中氮的储存和氮的迁移转化情况进行了估计。考察的林分在氮的大气输入量和立地性质上都存在差异,氮的大气输入量为10～25kg/hm^2·a。来自大气的氮,多数被固定在森林生态系统的土壤和现存生物量... 详细信息

人们对挪威南部和西南部一些森林生态系统中氮的储存和氮的迁移转化情况进行了估计。考察的林分在氮的大气输入量和立地性质上都存在差异,氮的大气输入量为10～25kg/hm^2·a。来自大气的氮,多数被固定在森林生态系统的土壤和现存生物量中。Dal流域氮的大气沉降率最低,年输入量约为12kg/hm^2·a,只略高于树木的吸收量。该流域内森林林分的NO_3-N淋失量约为0.5kg/hm^2·a。相比之下,挪威西南部受干扰更多的Svela和Hφgmo流域,氮的大气沉降率达到20kg/hm^2·a,高于树木的吸收量,沉降的氮多数被固定在生态系统的其他部分内(也许是在土壤中)。在后两个流域中NO_3^-N的淋失量似乎略高于Dal流域。森林生态系统的破坏(如皆伐)对NO_3的流量有显著影响。氮的动态过程受到自然因素、森林管理和大气氮沉降等因素的影响,且很难区分各要素的单独作用。这就难以评价诸如大气氮沉降等单一要素对NO_3流量的影响。

关键词：挪威森林生态系统氮循环氮储存氮迁移

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

人类对氮循环的影响:从地区远景看全球问题

引用

人类环境杂志 1997年第5期26卷 314-317页

作者： Dag O.Hessen Arne Henriksen Atle Hindar jan mulder KjetilTφrseth Nils Vagstad 李本纲奥斯陆大学奥斯陆挪威水研究所挪威格里姆斯塔水研究所挪威大气研究所挪威农业大学

本章探讨有关全球氮循环中人为扰动的主要问题,并将项目研究中的一些地区性发现与大尺度影响联系起来。人类将大气中的N_2转化为生物化学活性更强的形式,这产生一系列的环境效应。本项目旨在评估挪威南部两大流域及其子流域的氮状况,并... 详细信息

本章探讨有关全球氮循环中人为扰动的主要问题,并将项目研究中的一些地区性发现与大尺度影响联系起来。人类将大气中的N_2转化为生物化学活性更强的形式,这产生一系列的环境效应。本项目旨在评估挪威南部两大流域及其子流域的氮状况,并随着研究的进展阐述氮保持与流失的一些模式。对人口稀少的荒地而言,大气输入是氮的主要来源,约为2.5mg/m^2·a。低固定和明显的氮饱和源于大气氮的高输入,以及水文条件、土壤贫瘠和陆地磷的缺乏。在这个酸化的流域,NO_x和NH_x的扩散急剧下降,地表水的酸化中将近一半是由于氮的影响。磷的浓度较低,通常低干1μg/L,这使得流失物中氮/磷的比值高,从而导致淡水和近海中磷的缺乏。对农业化和森林覆盖的流域而言,大气中的氮沉降低于1.5mg/m^2·a,因此农业活动是氮的主要来源,同时淋溶水中氮和磷的浓度一般较高但波动较大。农业和林业是氮流失的主要因素。本流域入海口水流中高浓度的氮和磷是峡湾地区富营养化的主要原因。对两个流域而言,气候波动都强烈的影响氮的流失方式。氨盐的转化以及气候变化可能导致的土壤有机氮的矿质化都不可预测地作用于未来氮循环。

关键词：氮循环全球氮循环人为扰动干扰

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

挪威Storgama小型源头集水区降水量操控实验:对有机碳和氮化物淋溶的影响

引用

AMBIO－人类环境杂志 2008年第1期37卷 46-52页

作者： Stle Haaland Kari Austnes Φyvind Kaste jan mulder Gunnhild Riise Live Semb Vestgarden Arne O.Stuanes 王胜挪威生命科学大学挪威水研究所

挪威南部气候的预期变化包括夏秋降水量的增加。这会影响土壤溶解有机物(DOM)的淋溶。本文评估了Storgama(59°0′N,海拔550～600m)小型源头集水区3年(2004～2006年)生长季中实验性增加降水(10mm/周)对总有机碳(TOC)和总有机氮(TON)淋... 详细信息

挪威南部气候的预期变化包括夏秋降水量的增加。这会影响土壤溶解有机物(DOM)的淋溶。本文评估了Storgama(59°0′N,海拔550～600m)小型源头集水区3年(2004～2006年)生长季中实验性增加降水(10mm/周)对总有机碳(TOC)和总有机氮(TON)淋溶的影响。额外降水(extra precipitation)对径流中TOC和TON平均浓度没有显著影响。所以,TOC和TON通量的增加几乎与水流量成比例。这说明,集水区土壤储存的吸附性和潜在移动性TOC和TON缓冲了径流中的DOM浓度。TOC和TON库的大小和动态依赖于生产和淋溶速度之间的平衡。罕见的短暂干旱对来自参照流域径流中的TOC和TON通量只有很小的影响。

关键词：总有机碳降水量集水区实验性淋溶源头挪威氮化物

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

气候变化对氮和碳通量的影响:大气-陆地-淡水-海洋链:综述

引用

AMBIO－人类环境杂志 2008年第1期37卷 2-7页

作者： Arne O.Stuanes Heleen A.de Wit Lars R.Hole Φyvind Kaste jan mulder Gunnghild Riise Richard F.Wright 黄南艳林宁挪威生命科学大学挪威水研究所挪威大气研究所

预测的气候变化可能会使挪威南部半天然生态系统的氮沉降增加10%左右。在Storgama,生长季节降水量的增加使得总有机碳通量和总有机氮通量随水流量而有所增加。冬季,土壤通常在积雪覆盖下,土壤温度接近0℃,这导致了较高的无机氮的径流及... 详细信息

预测的气候变化可能会使挪威南部半天然生态系统的氮沉降增加10%左右。在Storgama,生长季节降水量的增加使得总有机碳通量和总有机氮通量随水流量而有所增加。冬季,土壤通常在积雪覆盖下,土壤温度接近0℃,这导致了较高的无机氮的径流及较低的总有机碳的径流。相反,由于积雪较少(预计在较温暖的世界中出现)而造成的土壤温度低于冰点则会减少无机氮、总有机氮和总有机碳的径流。长期的监测数据表明,积雪量的减少可以造成氮淋溶的下降或增加,这取决于氮沉降、土壤温度状况和冬季流量之间的相互作用。总有机碳的季节变化主要是受气候控制,而硫酸盐和硝酸盐(NO_3)的沉降造成了总有机碳的长期增加。升级到流域尺度,NO_3的年度通量对预测的气候变化的响应保持不变。

关键词：有机碳通量气候变化氮沉降土壤温度总有机碳综述海洋淡水

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

在线全文

在线全文

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

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：