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Evaluation of the influence of El Niño–Southern Oscillation on air quality in southern China from long-term

《环境科学与工程前沿(英文)》 2022年 第16卷 第2期 doi: 10.1007/s11783-021-1460-0

摘要:

•Strong ENSO influence on AOD is found in southern China region.

关键词: El Niño–Southern Oscillation     Aerosol concentration     Aerosol particle size     Contribution separation     Decadal trend     Southern China    

南方农产品产地主要环境问题成因与防治策略

黄彩红, 席北斗, 唐朱睿, 袁文超

《中国工程科学》 2018年 第20卷 第5期   页码 52-56 doi: 10.15302/J-SSCAE-2018.05.008

摘要:

随着我国经济的快速发展,大量污染物进入农产品产地环境并逐渐超过其容量限制,引发诸多环境问题,污染事件层出不穷,农产品产量下降、质量降低,严重影响我国农业生产和农村经济的可持续发展。南方地区城镇化起步早、发展快,初期经济发展均以牺牲环境为代价,特别是土壤重金属污染问题突出,同时南方地区广泛分布的酸雨污染则强化了问题的严重性。本文以长江沿岸的主要农产品产地为研究对象,系统论述了水、土、气等多种环境要素的质量现状,并基于自然因素与人类活动影响探讨了污染成因,提出环境污染防治策略,对于提升南方农产品产地环境污染治理的科学性,保障农业可持续发展、农产品质量安全、生态环境安全和人民群众健康安全都具有重要意义。

关键词: 南方农产品产地     环境污染     防治策略    

species associated with eucalypt diseases in southern China

Shuaifei CHEN, Qianli LIU, Guoqing LI, Michael J. WINGFIELD

《农业科学与工程前沿(英文)》 2017年 第4卷 第4期   页码 433-447 doi: 10.15302/J-FASE-2017173

摘要: The genus includes several important pathogens of species of and , mainly causing leaf and shoot blight. Recently, extensive shoot and leaf dieback and stem cankers suspected to be diseases have been found on young trees in Guangdong and Hainan Provinces. The occurrence of species and their association with eucalypt hosts within China needs to be investigated for tree diseases management. The isolates from the diseased samples were identified based on their morphological structures and phylogenetic analyses with DNA sequence data for the internal transcribed spacer region and large ribosome subunit RNA of the nuclear rDNA. This work revealed that three species of were present: from , from , both isolated from young eucalypt leaves and shoots in Guangdong Province, and , which was isolated from stem cankers of at four different sites across Guangdong and Hainan Provinces. These results confirmed that agents were associated with the diseases occurring on eucalypt hosts in South China. This is the first report of in Asia and the first report of in China on trees.

关键词: Corymbia     Eucalyptus     forest pathogens     plantations     Myrtaceae    

中国南方页岩气勘探评价的几点思考

郭旭升,郭彤楼,魏志红,张汉荣,刘若冰,柳智利,王炜

《中国工程科学》 2012年 第14卷 第6期   页码 101-105

摘要:

中国南方广泛发育下寒武统、下志留统、上二叠统三套海相区域性富有机质泥页岩,同时在四川盆地、江汉盆地和苏北盆地发育陆相富有机质泥页岩,具备形成页岩气的地质条件。但是,与美国页岩气相比,南方海相页岩气具有多期构造运动叠加改造、热演化程度高、保存条件复杂的特点,而陆相泥页岩有机碳含量、孔隙度相对较低,因此南方页岩气勘探面临诸多挑战,不能盲目乐观。笔者等对比研究认为,四川盆地海相、陆相是实现页岩气规模勘探开发的现实领域,江汉盆地、苏北盆地陆相可作为南方页岩气勘探的后备领域。

关键词: 中国南方     页岩气     勘探评价    

DQB1*060101 may contribute to susceptibility to immunoglobulin A nephropathy in southern Han Chinese

null

《医学前沿(英文)》 2016年 第10卷 第4期   页码 507-516 doi: 10.1007/s11684-016-0475-6

摘要:

Immunoglobulin A nephropathy (IgAN) is a common form of chronic glomerulonephritis with unknown pathogenesis. Accumulating evidences have shown the ethnic-specific association between certain human leukocyte antigen (HLA) alleles and IgAN susceptibility. This study was designed to explore the relationship between HLA-DQB1 alleles and disease susceptibility and clinical manifestations of patients with IgAN in southern Han Chinese. A PCR sequence-based typing technique was used to detect HLA-DQB1 alleles in 217 IgAN patients and 229 healthy subjects. Clinical data were collected from each patient at the time of renal biopsy. Twenty HLA-DQB1 alleles were detected in IgAN patients and healthy subjects. High frequency of HLA-DQB1*060101 and low frequency of HLA-DQB1*030101 were observed in IgAN patients compared with healthy controls. Further stratification analysis revealed that the frequency of DQB1*060101 was significantly higher in patients with urine protein≥1.0 g/24 h than in patients with urine protein<1.0 g/24 h. In combination with our previous DRB1 results, we also analyzed the association of DRB1-DQB1 haplotypes with IgAN. We found that the frequency of haplotype DRB1*090102-DQB1*060101 was significantly higher [odds ratio (OR) = 4.409, Pc = 0.016], whereas that of HLA-DRB1*070101-DQB1*020101 was significantly lower (OR= 0.194, Pc = 0.016) compared with healthy controls. Our study indicated that HLA-DQB1*060101 alleles may be a potential predictor of high-risk IgAN susceptibility in Chinese Han population.

关键词: DQB1     human leukocyte antigen (HLA)     IgA nephropathy     haplotype     association study    

南方农产品产地环境防治系统工程与案例——以鄱阳湖为例

黄彩红, 席北斗, 袁文超, 唐朱睿

《中国工程科学》 2018年 第20卷 第5期   页码 148-152 doi: 10.15302/J-SSCAE-2018.05.022

摘要:

鄱阳湖平原作为长江中下游平原的重要组成部分,是我国重要的商品粮生产基地,总体环境质量较好,土壤重金属污染处于中低等程度,且污染点位占比较低。以鄱阳湖作为南方农产品产地环境防治的系统工程与案例,与保护优先的环境保护理念相一致,具有典型性和代表性。本文阐明了鄱阳湖平原的主要环境问题并解析其成因,提出基于山水林田湖系统防治理念的环境质量提升对策和重点工程,对于鄱阳湖流域农产品主产地的环境质量改善具有重要的指导意义。结果表明,鄱阳湖平原环境污染以土壤重金属污染为主,生活源污染占比增加,畜禽养殖污染未能得到有效控制,且工矿企业和土壤重金属背景值是引起污染的主要诱因。基于此,应在以下三方面强化落实:一是多环境要素有机结合,强化系统防治与统一监管;二是以水环境质量为核心,提升管理精细化水平;三是重视环境应急预案,严控污染源进入土壤。

关键词: 鄱阳湖     环境防治     系统工程     政策建议    

Comprehensive health condition assessment on partial sewers in a southern Chinese city based on fuzzy

Lili GAN, Jiane ZUO, Yajiao WANG, Thong Soon LOW, Kaijun WANG

《环境科学与工程前沿(英文)》 2014年 第8卷 第1期   页码 144-150 doi: 10.1007/s11783-013-0554-8

摘要: A self-developed sewer health assessment system using the fuzzy comprehensive evaluation and analytical hierarchy process was applied to give a comprehensive health condition evaluation on part of the local sewers in a southern Chinese city based on the sewer video data collected by a sewer inspection closed circuit television (CCTV) robot. Aside from the overall condition evaluation, the structure, function, and stability status of the sewer were also analyzed using the method. A comprehensive index was proposed to give the overall health condition of pipes with different defects, and , , and were used to quantify the defects affecting the tightness, stability, and function of the pipe, respectively. Results show that 48% of the inspected pipes were in good condition (0< <0.25), and about 33% of the sewer pipes analyzed were categorized to be at severe or urgent condition levels ( >0.5), although most of the pipes were installed only within five years. Frequent sedimentation affects the function of the sewer, and deformation and joint damage affect the structure of the sewer.

关键词: sewer     health condition assessment     analytical hierarchy process     fuzzy comprehensive evaluation     fuzzy mathematic method    

Nutrient status and pollution levels in five areas around a manganese mine in southern China

Kehui Liu, Xiaolu Liang, Chunming Li, Fangming Yu, Yi Li

《环境科学与工程前沿(英文)》 2020年 第14卷 第6期 doi: 10.1007/s11783-020-1279-0

摘要: Abstract • The soil TP level was high or extremely high in all areas. • TN, OM and available Cu were insufficient in EA, TA and RA. • All areas reached the heavily polluted level and had high ecological risk levels. • Mn and Cd were the dominant pollutants. Nutrient status and pollution levels are the main factors affecting soil restoration. The nutrient status and pollution levels in five areas, an unexplored mine area (UA), an explored mine area (EA), a tailings area (TA), a reclamation area (RA) and an agricultural area (AA), around the Pingle manganese mine in Guangxi, China, were assessed in this study. The results showed that the average total phosphorus in these five areas ranged from 1.05 to 1.57 mg/kg, corresponding to grades of extremely high and high. The average total nitrogen values were 0.19, 0.69, 0.93, 1.24 and 1.67 mg/kg in EA, TA, RA, UA and AA, corresponding to grades of very low, low, medium-low, medium-high and medium-high, respectively. The average organic matter values were 12.78, 8.92, 22.77, 21.29 and 29.11 mg/kg in EA, TA, RA, UA and AA, which corresponded to grades of medium-low, low, medium-high, medium-high and medium-high, respectively. All these results indicated that the total phosphorus was sufficient in these areas, while the total nitrogen and organic matter were insufficient in EA, TA and RA. The available concentrations of Mn and Zn corresponded to the intermediate grade, while the values for Cu corresponded to the very low grade; these might be another factor restricting ecological reclamation. Contamination and ecological risk assessments based on the single contamination index, Nemerow multi-factor index and potential ecological risk index showed that the five tested areas around the Mn mine were considered heavily polluted and presented high ecological risk. Mn and Cd were the dominant pollutants.

关键词: Ecological reclamation     Ecological risk assessment     Heavy metal     Mn mine     Soil nutrients    

: a case study for human migration in the context of sustainable dryland farming development in the Southern

Yongqing MA, Jie CHEN, Shuqi DONG, Lun SHAN

《农业科学与工程前沿(英文)》 2014年 第1卷 第1期   页码 62-68 doi: 10.15302/J-FASE-2014027

摘要: The Southern Ningxia Hilly Area is one of the most impoverished areas of Ningxia Hui Autonomous Region (a province) of China due to an economy that mainly relies on agriculture, which is affected by droughts in two out of every three years. Government programs have attempted to develop an increased and sustainable level of scientifically based agricultural production while restoring the environment. However, since the population exceeds the capacity of the land to adequately support it, a program is underway to move 350000 people to more suitable locations. This paper outlines the past improvements to the Southern Ningxia Hilly Area and considers future development in the context of migration for ecological reasons.

关键词: agricultural production     animal husbandry     development strategy     ecological migration    

南方双季稻区冬油菜早熟品种选育和机械栽培研究进展

官春云,陈社员,吴明亮

《中国工程科学》 2010年 第12卷 第2期   页码 4-10

摘要:

为促进南方双季稻区冬油菜生产的发展,选育出油菜早熟品种和实行机械栽培是生产急需解决的两大问题。课题组经过近5年的系统研究,现已成功选育出5个早熟、双低、抗病、高含油量的油菜新组合(品系)。成功研制了适合油菜免耕(浅耕)直播要求的2BYF(D)—6型油菜免耕直播联合播种机,并配套研究了适合直播油菜要求的一次性施用控释肥;同时配合农艺上的催熟剂的开发与使用,研制了与高密度早熟油菜品种相配套的4YC-200油菜联合收割机。形成了在南方双季稻区机械化种植油菜农艺操作规程。通过以上集成技术的实施,实现了油菜种植成本降低,种植面积扩大,油菜产量和种植经济效益的提高,试验测定,通过机械化种植油菜,每公顷纯收入可增至4 500元以上。

关键词: 双季稻     油菜     早熟品种     机械栽培     控释肥     催熟剂    

极区海洋碳池变化性和脆弱性及其探测工程技术

陈立奇

《中国工程科学》 2009年 第11卷 第10期   页码 79-85

摘要:

利用中国南极考察和北极科学考察在南大洋和西北冰洋开展的连续围绕大气和表层海水pCO2及其相关参数观测和海气CO2通量评估,阐述南大洋和西北冰洋碳池的年际变化性,分析探讨其脆弱性,并展望了极区海洋碳池探测工程技术。

关键词: 碳循环     变化性和脆弱性     南大洋     西北冰洋     探测工程技术    

and land cover change on soil erosion and the spatio-temporal variation in Liupan Mountain Region, southernNingxia, China

Bin QUAN, M. J. M. R?MKENS, Rui LI, Fang WANG, Jie CHEN

《环境科学与工程前沿(英文)》 2011年 第5卷 第4期   页码 564-572 doi: 10.1007/s11783-011-0348-9

摘要: The Liupan Mountains are located in the southern Ningxia Hui Autonomous Region of China, that forms an important divide between landforms and bio-geographic regions. The populated part of the Liupan Mountain Region has suffered tremendous ecological damage over time due to population pressure, excessive demand and inappropriate use of agricultural land resources. To present the relationship between land use/cover change and spatio-temporal variation of soil erosion, data sets of land use between the late 1980s and 2000 were obtained from Landsat Thematic Mapper (TM) imagery, and spatial models were used to characterize landscape and soil erosion conditions. Also, soil erosion in response to land use and land cover change were quantified and analyzed using data from geographical information systems and remote sensing. Soil erosion by water was the dominant mode of soil loss, while soil erosion by wind was only present on a relatively small area. The degree of soil erosion was classified into five severity classes: slight, light, moderate, severe, and very severe. Soil erosion in the Liupan Mountain Region increased between the late 1980s and 2000, both in terms of acreage and severity. Moderate, severe, and very severe eroded areas accounted for 54.86% of the total land area. The lightly eroded area decreased, while the moderately eroded area increased by 368817 ha (22%) followed by severe erosion with 146552 ha (8.8%), and very severe erosion by 97067.6 ha (5.8%). Soil loss on sloping cropland increased with slope gradients. About 90% of the cropland was located on slopes less than 15°. Most of the increase in soil erosion on cropland was due to conversion of steep slopes to cropland and degradation of grassland and increased activities. Soil erosion was severe on grassland with a moderate or low grass cover and on dry land. Human activities, cultivation on steep slopes, and overgrazing of pastures were the main reasons for the increase in erosion severity.

关键词: land use/land cover change     soil erosion     geographical information system     remote sensing     Liupan Mountain Region    

Diagnosis of sewer pipe defects on image recognition of multi-features and support vector machine in a southern

Xiangyang Ye, Jian’e Zuo, Ruohan Li, Yajiao Wang, Lili Gan, Zhonghan Yu, Xiaoqing Hu

《环境科学与工程前沿(英文)》 2019年 第13卷 第2期 doi: 10.1007/s11783-019-1102-y

摘要:

An image-recognition-based diagnosis system of pipe defect types was established.

1043 practical pipe images were gathered by CCTV robot in a southern Chinese city.

The overall accuracy of the system is 84% and the highest accuracy is 99.3%.

The accuracy shows positive correlation to the number of training samples.

关键词: Sewer pipe defects     Defect diagnosing     Image recognition     Multi-features extraction     Support vector machine    

切内里基线隧道——穿越瑞士阿尔卑斯山脉的平轨铁路线南段的施工经验 Article

Davide Merlini, Daniele Stocker, Matteo Falanesca, Roberto Schuerch

《工程(英文)》 2018年 第4卷 第2期   页码 235-248 doi: 10.1016/j.eng.2017.09.004

摘要:
本文总结了在修建15.4 km 长切内里基线隧道(CBT)期间获得的经验,这条隧道为从北向南跨越瑞士阿尔卑斯山脉的平轨铁路线的南段。该项目由直径为9 m 的双管组成,双管之间每隔325 m设置一个联络通道。在线路中部及其南端,应后勤和运营要求,开挖了大型洞室。总开挖长度大约为40 km。隧道穿越阿尔卑斯山处的岩层由各种岩石类型和若干断层带组成。最大埋深达850 m。主隧道和联络通道的开挖通过钻爆法(D&B)进行。支护由锚杆、钢筋网、纤维增强喷射混凝土和(必要时的)钢拱架构成。为开挖进口隧洞,使用了敞开式隧道掘进机(TBM)。大埋深导致岩石受到挤压,这种状况的特征为在穿越较弱岩层时产生较大的各向异性收敛。较弱岩层要求安装可变形支护。在北洞口,隧道(断面增大)穿过A2 高速公路(连接瑞士北部和南部的主要道路轴线)下方,此处埋深较小,且隧道通过的是软地层。为限制地表沉降,成功采用了垂直和近水平喷射灌浆与分部开挖相结合的方法。南洞门位于人口密集的市区。开挖自南洞门开始,包括一

emissions from double-rice cropping system as affected by Chinese milk vetch and straw incorporation in southernChina

Heshui XU,Dengyun LI,Bo ZHU,Kai ZHANG,Yadong YANG,Chen WANG,Ying JIANG,Zhaohai ZENG

《农业科学与工程前沿(英文)》 2017年 第4卷 第1期   页码 59-68 doi: 10.15302/J-FASE-2017137

摘要: Chinese milk vetch (CMV) and rice straw (RS) were incorporated into soil to substitute for synthetic N fertilizers and to maintain soil fertility. However, little is known about the integrated impacts of CMV and RS incorporation on CH and N O emissions in double-rice cropping systems in southern China. A field experiment was conducted to estimate the integrated impacts of CMV and RS incorporation in the early- and late-rice seasons on CH and N O emissions. All treatments received uniform N inputs, 6%–37% of which was replaced by CMV and RS crop residue. CMV and/or RS incorporation produced equivalent or slightly more grain yield, while reducing N O emissions by 3%–43%. However, both CMV and RS incorporation increased CH emissions. Annual CH emissions ranged from 321 to 614 kg·hm from CMV and RS amendment treatments, which were 1.5–2.9 times higher than that from synthetic N. Compared with single synthetic N fertilizer, incorporation of CMV and/or RS increased GWP and yield-scaled GWP by 45%–164% and 45%–153%, respectively. Our results demonstrate CMV and RS amendments replacing N fertilizer, maintained stable yield, mitigated N O emission, but enhanced CH emission. Further study is needed on crop residue management in double-cropping rice systems.

关键词: Chinese milk vetch     CH4     double-rice cropping system     grain yield     N2O     rice straw    

标题 作者 时间 类型 操作

Evaluation of the influence of El Niño–Southern Oscillation on air quality in southern China from long-term

期刊论文

南方农产品产地主要环境问题成因与防治策略

黄彩红, 席北斗, 唐朱睿, 袁文超

期刊论文

species associated with eucalypt diseases in southern China

Shuaifei CHEN, Qianli LIU, Guoqing LI, Michael J. WINGFIELD

期刊论文

中国南方页岩气勘探评价的几点思考

郭旭升,郭彤楼,魏志红,张汉荣,刘若冰,柳智利,王炜

期刊论文

DQB1*060101 may contribute to susceptibility to immunoglobulin A nephropathy in southern Han Chinese

null

期刊论文

南方农产品产地环境防治系统工程与案例——以鄱阳湖为例

黄彩红, 席北斗, 袁文超, 唐朱睿

期刊论文

Comprehensive health condition assessment on partial sewers in a southern Chinese city based on fuzzy

Lili GAN, Jiane ZUO, Yajiao WANG, Thong Soon LOW, Kaijun WANG

期刊论文

Nutrient status and pollution levels in five areas around a manganese mine in southern China

Kehui Liu, Xiaolu Liang, Chunming Li, Fangming Yu, Yi Li

期刊论文

: a case study for human migration in the context of sustainable dryland farming development in the Southern

Yongqing MA, Jie CHEN, Shuqi DONG, Lun SHAN

期刊论文

南方双季稻区冬油菜早熟品种选育和机械栽培研究进展

官春云,陈社员,吴明亮

期刊论文

极区海洋碳池变化性和脆弱性及其探测工程技术

陈立奇

期刊论文

and land cover change on soil erosion and the spatio-temporal variation in Liupan Mountain Region, southernNingxia, China

Bin QUAN, M. J. M. R?MKENS, Rui LI, Fang WANG, Jie CHEN

期刊论文

Diagnosis of sewer pipe defects on image recognition of multi-features and support vector machine in a southern

Xiangyang Ye, Jian’e Zuo, Ruohan Li, Yajiao Wang, Lili Gan, Zhonghan Yu, Xiaoqing Hu

期刊论文

切内里基线隧道——穿越瑞士阿尔卑斯山脉的平轨铁路线南段的施工经验

Davide Merlini, Daniele Stocker, Matteo Falanesca, Roberto Schuerch

期刊论文

emissions from double-rice cropping system as affected by Chinese milk vetch and straw incorporation in southernChina

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期刊论文