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Trade-off analyses between food provision and soil conservation service of Grain for Green Program in Mountainous Area

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International Soil and Water Conservation Research 2024年第1期12卷 43-53页

作者： Yawen Li Yuxiang Li Xingwu Duan zhongyin cai Ya Li Baiyun He Long Yin Institute of International River and Eco-security Yunnan UniversityKunming650091PR China Yunnan Key Laboratory of International Rivers and Trans-boundary Eco-security Kunming650091PR China State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing100085PR China University of Chinese Academy of Sciences Beijing100049PR China

The Grain for Green Program and soil and water conservation engineering initiatives are crucial for controlling erosion in steep-slope ***,it is still unclear how these two management methods should be carried out in respect to the situation in mountainous ***,taking a typical mountainous area in southwest China as an example,we simulated six scenarios in order to compare the food provisioning service(FPS)and soil conservation service of the Grain for Green Program(converting to grassland)and Construction Measures(converting to sloping terrace)under different *** showed that when farmland with a>25°slope was converted into grassland,the amount of soil erosion(M)decreased by 21.0%,while FPS decreased by only 0.7%.However,when farmland with a>25°slope was converted into sloping terrace,M decreased by 31.3%while FPS increased by 18.7%.With the increases of farmland slope ranges in the Construction Measures scenario,M gradually decreased and FPS gradually *** when farmland>15°was converted into sloping terrace,M decreased by 63.9%and FPS increased by 52.7%.Furthermore,the trade-offs of Construction Measures are lower than that of Grain for Green on different slope ***,we conclude that Construction Measures are a more suitable method in mountainous areas than the Grain for Green,and we suggest that further research be conducted to consider the ecological risks of construction engineering measures.

关键词： Soil erosion Grain for green Construction measures Mountainous areas

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季风区降水δ18O与云顶气压关系

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第四纪研究 2015年第6期35卷 1450-1457页

作者：蔡忠银田立德中国科学院青藏高原研究所青藏高原环境变化与地表过程重点实验室北京100101 中国科学院大学北京100049 中国科学院青藏高原地球科学卓越创新中心北京100101

不同于高纬地区,中低纬度季风区降水稳定同位素变化较复杂,降水稳定同位素＂温度效应＂不明显,而出现显著的＂降水量效应＂.而通过地表的数据分析很难解释影响季风区降水稳定同位素变化的过程与机制,这使得对于季风区稳定同位素气候记... 详细信息

不同于高纬地区,中低纬度季风区降水稳定同位素变化较复杂,降水稳定同位素＂温度效应＂不明显,而出现显著的＂降水量效应＂.而通过地表的数据分析很难解释影响季风区降水稳定同位素变化的过程与机制,这使得对于季风区稳定同位素气候记录的解释存在不同认识.本文利用GNIP降水稳定同位素数据和ISCCP D2云气候资料,通过分析降水δ18O与云顶气压的关系,试图从降水过程中的水汽传输来解释季风区降水稳定同位素的变化特征.研究发现季风区降水δ18O与云顶气压在局地和区域尺度上均有显著正相关关系,夏季风爆发时云顶气压和降水δ18O都显著降低,表明云抬升高度对降水δ18O的重要影响.这种关系表明季风区降水δ18O除受局地过程的影响外,还受大尺度对流活动的影响.本研究从不同角度证明了对流降水是季风区降水稳定同位素出现＂降水量效应＂的重要因素.季风活动越强,云顶高度越高,凝结温度越低,从而导致降水中δ18O越低,是出现同位素＂降水量效应＂的机制.

关键词：降水云顶气压对流季风

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亚洲季风区降水中稳定同位素气候意义研究进展

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第四纪研究 2021年第3期41卷 856-863页

作者：田立德蔡忠银邵莉莉王荻刘峰云南大学国际河流与生态安全研究院云南昆明650500 云南省国际河流与跨境生态安全重点实验室云南昆明650091

文章回顾了过去30多年围绕亚洲季风区,特别是青藏高原降水与冰芯同位素现代过程研究,对季风区稳定同位素气候意义的认识过程。降水及不同介质氧稳定同位素研究从最早聚焦于降水同位素与当地气候因子之间的关系,即"温度效应"与"降水量效... 详细信息

文章回顾了过去30多年围绕亚洲季风区,特别是青藏高原降水与冰芯同位素现代过程研究,对季风区稳定同位素气候意义的认识过程。降水及不同介质氧稳定同位素研究从最早聚焦于降水同位素与当地气候因子之间的关系,即"温度效应"与"降水量效应",发展到大尺度大气环流过程对降水同位素时空变化的影响,进而否定了局地气候因子的控制作用。近些年重要的研究进展之一是明确了与赤道海洋温度变化相关的ENSO对整个亚洲季风区同位素年际年代际波动的影响过程与机制,发现了大尺度大气环流在不同时间尺度稳定同位素记录中的显著信号。这些认识对于亚洲季风区冰芯、石笋、树轮同位素气候意义的解释都具有重要意义。但在不同时间尺度上,影响降水同位素的主导控制因素不同,导致对于解释长时间尺度同位素记录仍存在挑战,有待于从机制和结合同位素分馏的大气环流模型模拟研究中取得新的突破。

关键词：降水同位素气候意义亚洲季风古气候重建 ENSO

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禹门河水库围堰防渗墙工程的设计与施工

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河南水利与南水北调 2006年第1期35卷 29-,31页

作者：罗国杰蔡仲银张自强黄河勘测规划设计有限公司

1 概述禹门河反调节水库位于河南省洛宁县兴华乡禹门河村,黄河一级支流洛河干流上。坝址控制流域面积6104km^2,多年平均入库径流12.62亿 m^3。库容2810万 m^3,为中型水库。大坝为3级建筑物,采用碾压混凝土重力坝,最大坝高59.5m。电站为... 详细信息

1 概述禹门河反调节水库位于河南省洛宁县兴华乡禹门河村,黄河一级支流洛河干流上。坝址控制流域面积6104km^2,多年平均入库径流12.62亿 m^3。库容2810万 m^3,为中型水库。大坝为3级建筑物,采用碾压混凝土重力坝,最大坝高59.5m。电站为坝后式,共3台机组,总装机容量10.5MW。上游围堰采用土石过水围堰,轴线长度138.24m,河床平均高程393.44m,枯水期5年一遇(Q=150m^3/s)挡水位397.27m,堰顶高程397.6m,围堰最大高度7.6m。下游围堰轴线长度150.35m,河床平均高程392.89m,5年一遇枯水期挡水391.72m,堰顶高程392.0m,围堰最大高度3m。上。

关键词：高压喷射灌浆防渗墙施工围堰防渗墙混凝土灌注桩下游围堰上游围堰碾压混凝土重力坝平均高程河南省堰顶高程

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林冠穿透雨空间异质性及其时间稳定性特征的全球量化

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应用生态学报 2024年第6期35卷 1543-1552页

作者：王倩袁川张亚峰胡彦婷王一郭立刘琴蔡忠银浙江农林大学林业与生物技术学院杭州311300 西南大学地理科学学院重庆金佛山喀斯特生态系统国家野外科学观测研究站重庆400715 陕西延安森林生态系统国家定位观测研究站北京100085 中国科学院西北生态环境资源研究院沙坡头沙漠研究试验站兰州730000 中南林业科技大学生命科学与技术学院长沙410004 国际竹藤中心竹藤资源与环境研究所国家林业与草原局/北京市共建竹藤科学与技术重点实验室北京100102 四川大学山区河流保护与治理全国重点实验室成都610065 南京信息工程大学地理科学学院南京210044 云南大学国际河流与生态安全研究院昆明650500

林冠穿透雨空间异质性(即不同冠层位置穿透雨量的非均一性)及其在一定时间段内的持续性(即时间稳定性)关系着土壤水分补给数量和效率,通过影响资源有效性作用于植物个体竞争和群落演替。本研究基于关键词检索并分析整理了Web of Scienc... 详细信息

林冠穿透雨空间异质性(即不同冠层位置穿透雨量的非均一性)及其在一定时间段内的持续性(即时间稳定性)关系着土壤水分补给数量和效率,通过影响资源有效性作用于植物个体竞争和群落演替。本研究基于关键词检索并分析整理了Web of Science和中国知网数据库2000—2022年发表的554篇相关主题论文数据,量化并对比了全球不同气候带和植物功能型的穿透雨数量、空间异质性及其时间稳定性特征。结果表明:全球范围内旱区穿透雨比例(72.0%±13.6%)小于湿润(75.1%±9.3%)和半湿润区(79.9%±10.4%),热带(80.9%±14.6%)高于暖温带(74.2%±7.5%)和冷温带(74.1%±14.6%),灌木(68.9%±14.9%)小于乔木(76.7%±9.1%),但阔叶植物(75.2%±11.1%)和针叶植物(75.1%±9.9%)、常绿植物(76.7%±10.0%)和落叶植物(74.7%±11.9%)的林冠穿透雨比例接近,其空间变异系数在上述不同干湿区、温度带和植物功能型之间差异均不显著。穿透雨空间分布格局易保持相对稳定,冠层结构是影响其时间稳定性的主导因子,但缺乏不同时间尺度上典型地理单元(即地理环境条件基本一致的空间单元)之间的对比。建议未来研究通过向上延展至基于全球的空间尺度规律汇总,向下延展至基于过程的时间尺度机制分析,刻画穿透雨空间分布动态变化,并统一观测规范来增进不同研究之间的可参比性,以高效推进林冠穿透雨研究,为保护自然、管理人工、恢复受损生态系统提供生态水文依据。

关键词：穿透雨空间分布时间稳定性气候带植物功能型

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Correlation between the rock mass properties and maximum horizontal stress:A case study of overcoring stress measurements

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 39-48页

作者： Peng Li Meifeng cai Shengjun Miao Yuan Li Yu Wang Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyXuzhou 221116China

Understanding the mechanical properties of the lithologies is crucial to accurately determine the horizontal stress *** investigate the correlation between the rock mass properties and maximum horizontal stress,the three-dimensional(3D)stress tensors at 89 measuring points determined using an improved overcoring technique in nine mines in China were adopted,a newly defined characteristic parameter C_(ERP)was proposed as an indicator for evaluating the structural properties of rock masses,and a fuzzy relation matrix was established using the information distribution *** results indicate that both the vertical stress and horizontal stress exhibit a good linear growth relationship with *** is no remarkable correlation between the elastic modulus,Poisson's ratio and depth,and the distribution of data points is scattered and ***,there is no obvious relationship between the rock quality designation(RQD)and *** maximum horizontal stress σ_(H) is a function of rock properties,showing a certain linear relationship with the C_(ERP)at the same *** addition,the overall change trend of σ_(H) determined by the established fuzzy identification method is to increase with the increase of C_(ERP).The fuzzy identification method also demonstrates a relatively detailed local relationship betweenσ_H and C_(ERP),and the predicted curve rises in a fluctuating way,which is in accord well with the measured stress data.

关键词： overcoring stress measurements elastic modulus Poisson's ratio rock quality designation maximum horizontal stress fuzzy identification

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SensFL:Privacy-Preserving Vertical Federated Learning with Sensitive Regularization

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 385-404页

作者： Chongzhen Zhang Zhichen Liu Xiangrui Xu Fuqiang Hu Jiao Dai Baigen cai Wei Wang School of Automation and Intelligence Beijing Jiaotong UniversityBeijing100044China Shuohuang Railway Development Co. Ltd.National Energy GroupCangzhou062350China Beijing Key Laboratory of Security and Privacy in Intelligent Transportation School of Computer Science and TechnologyBeijing Jiaotong UniversityBeijing100044China

In the realm of Intelligent Railway Transportation Systems,effective multi-party collaboration is crucial due to concerns over privacy and data *** Federated Learning(VFL)has emerged as a promising approach to facilitate such collaboration,allowing diverse entities to collectively enhance machine learning models without the need to share sensitive training ***,existing works have highlighted VFL’s susceptibility to privacy inference attacks,where an honest but curious server could potentially reconstruct a client’s raw data from embeddings uploaded by the *** vulnerability poses a significant threat to VFL-based intelligent railway transportation *** this paper,we introduce SensFL,a novel privacy-enhancing method to against privacy inference attacks in ***,SensFL integrates regularization of the sensitivity of embeddings to the original data into the model training process,effectively limiting the information contained in shared *** reducing the sensitivity of embeddings to the original data,SensFL can effectively resist reverse privacy attacks and prevent the reconstruction of the original data from the *** experiments were conducted on four distinct datasets and three different models to demonstrate the efficacy of *** results show that SensFL can effectively mitigate privacy inference attacks while maintaining the accuracy of the primary learning *** results underscore SensFL’s potential to advance privacy protection technologies within VFL-based intelligent railway systems,addressing critical security concerns in collaborative learning environments.

关键词： Vertical federated learning privacy defenses

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Identifying the dynamic behaviors in complete reconstruction of Co-based complex precatalysts during electrocatalytic oxygen evolution

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Journal of Energy Chemistry 2025年第1期100卷 226-233页

作者： Jingfang Zhang Danyang Wu Linke cai Youluan Lu Fanpeng Cheng Lijuan Shi Qun Yi Yao Liu Yi Huang Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Hubei Key Laboratory of Novel Reactor and Green Chemical Technology School of Chemical Engineering & Pharmacy Wuhan Institute of Technology Key Laboratory of Pesticide & Chemical Biology of Ministry of Education Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education College of Chemistry Central China Normal University College of Materials Science and Engineering Fuzhou University

Transition metal-based nanomaterials have emerged as promising electrocatalysts for oxygen evolution reaction（OER）. Considerable research efforts have shown that self-reconstruction occurs on these nanomaterials under operating conditions of OER process. However, most of them undergo incomplete reconstruction with limited thickness of reconstruction layer, leading to low component utilization and arduous exploration of real catalytic mechanism. Herein, we identify the dynamic behaviors in complete reconstruction of Co-based complexes during OER. The hollow phytic acid（PA） cross-linked CoFe-based complex nanoboxes with porous nanowalls are designed because of their good electrolyte penetration and mass transport ability, in favor of the fast and complete reconstruction. A series of experiment characterizations demonstrate that the reconstruction process includes the fast substitution of PA by OH-to form Co（Fe）(OH)xand subsequent potential-driven oxidation to Co（Fe）OOH. The obtained CoFeOOH delivers a low overpotential of 290 mV at a current density of 10 mA cm-2and a long-term *** experiment results together with theory calculations reveal that the Fe incorporation can result in the electron rearrangement of reconstructed CoFeOOH and optimization of their electronic structure,accounting for the enhanced OER activity. The work provides new insights into complete reconstruction of metal-based complexes during OER and offers guidelines for rational design of high-performance electrocatalysts.

关键词： Complete reconstruction Co-based complex Precatalysts Oxygen evolution reaction

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Application of the improved dung beetle optimizer,muti-head attention and hybrid deep learning algorithms to groundwater depth prediction in the Ningxia area,China

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 18-23页

作者： Jiarui cai Bo Sun Huijun Wang Yi Zheng Siyu Zhou Huixin Li Yanyan Huang Peishu Zong Collaborative Innovation Center on forecast and Evaluation of Meteorological Disasters/Key Laboratory of Meteorological Disaster Ministry of Education/Joint International Research Laboratory of Climate and Environment ChangeNanjing University of Information Science and TechnologyNanjingChina Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) ZhuhaiChina China Meteorological Administration Key Laboratory of Transportation MeteorologyNanjingChina Jiangsu Meteorological Observatory NanjingChina

Due to the lack of accurate data and complex parameterization,the prediction of groundwater depth is a chal-lenge for numerical *** learning can effectively solve this issue and has been proven useful in the prediction of groundwater depth in many *** this study,two new models are applied to the prediction of groundwater depth in the Ningxia area,*** two models combine the improved dung beetle optimizer(DBO)algorithm with two deep learning models:The Multi-head Attention-Convolution Neural Network-Long Short Term Memory networks(MH-CNN-LSTM)and the Multi-head Attention-Convolution Neural Network-Gated Recurrent Unit(MH-CNN-GRU).The models with DBO show better prediction performance,with larger R(correlation coefficient),RPD(residual prediction deviation),and lower RMSE(root-mean-square error).Com-pared with the models with the original DBO,the R and RPD of models with the improved DBO increase by over 1.5%,and the RMSE decreases by over 1.8%,indicating better prediction *** addition,compared with the multiple linear regression model,a traditional statistical model,deep learning models have better prediction performance.

关键词： Groundwater depth Multi-head attention Improved dung beetle optimizer CNN-LSTM CNN-GRU Ningxia

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南水北调中线工程潮河段隧洞施工通风设计研究

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隧道建设 2009年第5期29卷 499-502,509页

作者：蔡仲银汪雪英李惠安杨维九王伟曾桂平黄河勘测规划设计有限公司郑州450003

南水北调中线总干渠潮河段隧洞方案为2条平行圆形隧道,隧洞段长18.147 km,净间距26.6 m,设计洞径为12.1 m,采用2台土压平衡盾构机从进、出口相向掘进施工。由于隧洞较长,施工通风比较困难。根据隧洞布置形式、施工方案、主要污染源分析... 详细信息

南水北调中线总干渠潮河段隧洞方案为2条平行圆形隧道,隧洞段长18.147 km,净间距26.6 m,设计洞径为12.1 m,采用2台土压平衡盾构机从进、出口相向掘进施工。由于隧洞较长,施工通风比较困难。根据隧洞布置形式、施工方案、主要污染源分析及隧洞施工作业环境的劳动卫生标准,研究计算了洞内需风量和风压,确定了通风方式和风机、风管的技术参数。

关键词：南水北调中线工程施工通风设计风量设计风压

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