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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
关键词: Ecological reclamation Ecological risk assessment Heavy metal Mn mine Soil nutrients
Yiwen LIN,Dan LI,Siyu ZENG,Miao HE
《环境科学与工程前沿(英文)》 2016年 第10卷 第3期 页码 539-547 doi: 10.1007/s11783-016-0830-5
关键词: wastewater reclamation systems microbial community pathogenic community 454-pyrosequencing
Quantitative analysis of microplastics in coastal tidal-flat reclamation in Dongtai, China
《环境科学与工程前沿(英文)》 2022年 第16卷 第8期 doi: 10.1007/s11783-022-1528-5
• Reclamation projects are important disturbances on microplastic risk in coasts.
关键词: Coastal reclamation Engineering geotextiles Soil microplastics Weathering simulation Marine emission
Investigating the raveling test for full-depth reclamation
Robert HILL, Andrew BRAHAM
《结构与土木工程前沿(英文)》 2018年 第12卷 第2期 页码 222-226 doi: 10.1007/s11709-017-0423-9
《农业科学与工程前沿(英文)》 2021年 第8卷 第4期 页码 559-567 doi: 10.15302/J-FASE -2020344
Intensifying human activity in the Yangtze River basin has substantially increased nutrient concentrations in the Yangtze River Estuary, leading to degradation of the coastal environment. Analysis of nutrient determinations published over the past 50 years reveals a gradual decreasing trend in the concentrations and fluxes of dissolved silicate (DSi). However, both dissolved inorganic nitrogen (DIN) and dissolved inorganic phosphate (DIP) concentrations have increased significantly since the 1970s. The frequency of and area covered by red tide outbreaks have increased greatly during this period, mainly due to changes in nutrient supply ratios [i.e., N/P (DIN/DIP), N/Si (DIN/DSi), P/Si (DIP/DSi)]. A strong correlation was found between the riverine DIN fluxes and the estimated DIN inputs from the major N sources, particularly fertilizers and atmospheric deposition. The data provide a comprehensive assessment of nutrients in the Yangtze River basin and their ecological impacts and indicate a potentially significant influence of atmospheric deposition on DIN loadings and fluxes.
关键词: atmospheric deposition / ecological impacts / nitrogen sources / nutrients / Yangtze delta
Guofang SHEN
《农业科学与工程前沿(英文)》 2017年 第4卷 第4期 页码 376-379 doi: 10.15302/J-FASE-2017186
关键词: ecological conservation development construction ” description important governmental
Research on port ecological suitability evaluation index system and evaluation model
Yaofeng XIE,Xia LV,Ru LIU,Liuyan MAO,Xiaoxi LIU
《结构与土木工程前沿(英文)》 2015年 第9卷 第1期 页码 65-70 doi: 10.1007/s11709-014-0258-6
关键词: port ecological suitability press-state-response (PSR) model evaluation index system
HIGH QUALITY DEVELOPMENTAL APPROACH FOR SOIL AND WATER CONSERVATION AND ECOLOGICAL PROTECTION ON THE
《农业科学与工程前沿(英文)》 2021年 第8卷 第4期 页码 501-511 doi: 10.15302/J-FASE-2021425
The Loess Plateau is the core area in the Yellow River basin for implementing environmental protection and high-quality development strategies. A series of ecological projects has implemented aimed at soil and water conservation and ecological management on the Loess Plateau over the past 70 years. The effects of the ecological projects are apparent mainly through a marked increase in vegetation cover, controlled soil erosion and reduced flow of sediment into the Yellow River, continual optimization of the industrial structure and increased production from arable land, poverty alleviation and greater prosperity, and optimal allocation of space for biological organisms. Major problems have also been analyzed in ecological management including the fragile ecosystem of the region, maintaining the stability of vegetation, lower agricultural productivity and continued risk from natural disasters. Some suitable schemes and models have been developed for the coordinated development of the region through research and demonstration, striking the optimum balance between rural industry and ecology, and increased regional capacity to supply high-quality ecological products. Countermeasures to address the problems are suggested to guide ecological management and high-quality development in the future.
关键词: ecological management high quality development industrial structure soil erosion soil and water conservation Loess Plateau
Yandan FU, Jiahui KANG, Ziyue LI, Xuejun LIU, Wen XU
《农业科学与工程前沿(英文)》 2021年 第8卷 第4期 页码 559-567 doi: 10.15302/J-FASE-2020344
关键词: atmospheric deposition ecological impacts nitrogen sources nutrients Yangtze River Delta
周海,唐臣,季岚
《中国工程科学》 2013年 第15卷 第6期 页码 30-34
根据横沙东滩促淤圈围工程实施情况,并结合长江口水域港口航道工程建设及疏浚土处理现状,剖析利用长江口疏浚土进行横沙成陆存在的主要问题;按照横沙海洋新城建设规划,分析海洋新城成陆的工程规模及泥沙需求,进而提出充分利用长江口疏浚土加快横沙海洋新城成陆的总体实施原则及方案构想,以及相关有益建议。
Dawei ZHANG
《工程管理前沿(英文)》 2019年 第6卷 第4期 页码 557-563 doi: 10.1007/s42524-019-0077-5
关键词: ecological conservation redline development of energy and mineral resources coordinated development
Fabrication of high-performance pervaporation composite membrane for alkaline wastewater reclamation
《化学科学与工程前沿(英文)》 2022年 第16卷 第5期 页码 709-719 doi: 10.1007/s11705-021-2078-2
关键词: pervaporation alkaline solution concentration polyethylene membrane acid resistance chlorine tolerance
林鹏
《中国工程科学》 2003年 第5卷 第6期 页码 33-38
简述红树林湿地在滨海湿地中的地位,红树林的种类和分布,红树林类群的界定,湿地保护中的重要性,红树林的生态、社会和经济价值。着重讨论中国红树林生态工程中面临的四个问题:1.红树林生态恢复的关键是宜林地的选择标准;2.红树林区海堤修复工程的生态模式;3.防止引种时带进外来有害物种的生态入侵;4.要以最小的资源环境代价,谋求经济社会最大限度的发展,从而促进红树林湿地的保护与发展。
《农业科学与工程前沿(英文)》 2021年 第8卷 第3期 页码 416-431 doi: 10.15302/J-FASE-2021412
Absolute yield and land use efficiency can be higher in multicrops. Though this phenomenon is common, it is not always the case. Also, these two benefits are frequently confused and do not necessarily occur together. Cropping choices become more complex when considering that multicrops are subject to strong spatial and temporal variation in average soil moisture, which will worsen with climate change. Intercropping in agroecosystems is expected to buffer this impact by favoring resistance to reduced humidity, but there are few empirical/experimental studies to validate this claim. It is not clear if relatively higher multicrop yield and land use efficiency will persist in the face of reduced soil moisture, and how the relation between these benefits might change. Here, we present a relatively simple framework for analyzing this situation. We propose a relative multicrop resistance (RMR) index that captures all possible scenarios of absolute and relative multicrop overyield under water stress. We dissect the ecological components of RMR to understand the relation between higher multicrop yield and land use efficiency and the ecological causes of different overyield scenarios. We demonstrate the use of this framework with data from a 128 microplot greenhouse experiment with small annual crops, arranged as seven-species multicrops and their corresponding monocrops, all under two contrasting watering regimes. We applied simple but robust statistical procedures to resulting data (based on bootstrap methods) to compare RMR, and its components, between different plants/plant parts. We also provide simple graphical tools to analyze the data.
关键词: agroecosystem sustainability crop overyielding intercrop drought resistance overyield ecological components
Dawen Gao, Xiaolong Wang, Hong Liang, Qihang Wei, Yuan Dou, Longwei Li
《环境科学与工程前沿(英文)》 2018年 第12卷 第3期 doi: 10.1007/s11783-018-1035-x
关键词: Anammox Metabolism Metagenome Ecological distribution Microbial interactions
标题 作者 时间 类型 操作
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
Changes of microbial composition during wastewater reclamation and distribution systems revealed by high-throughput
Yiwen LIN,Dan LI,Siyu ZENG,Miao HE
期刊论文
CONCENTRATIONS AND FLUXES OF DISSOLVED NUTRIENTS IN THE YANGTZE RIVER: LONG-TERM TRENDS AND ECOLOGICAL
期刊论文
Ecological conservation, remediation and construction for building an ecological civilization in China: concepts for ecological activity
Guofang SHEN
期刊论文
Research on port ecological suitability evaluation index system and evaluation model
Yaofeng XIE,Xia LV,Ru LIU,Liuyan MAO,Xiaoxi LIU
期刊论文
HIGH QUALITY DEVELOPMENTAL APPROACH FOR SOIL AND WATER CONSERVATION AND ECOLOGICAL PROTECTION ON THE
期刊论文
CONCENTRATIONS AND FLUXES OF DISSOLVED NUTRIENTS IN THE YANGTZE RIVER: LONG-TERM TRENDS AND ECOLOGICAL
Yandan FU, Jiahui KANG, Ziyue LI, Xuejun LIU, Wen XU
期刊论文
Relationship between the development of energy and mineral resources and ecological conservation redline
Dawei ZHANG
期刊论文
Fabrication of high-performance pervaporation composite membrane for alkaline wastewater reclamation
期刊论文
HOW MULTISPECIES INTERCROP ADVANTAGE RESPONDS TO WATER STRESS: A YIELD-COMPONENT ECOLOGICAL FRAMEWORK
期刊论文