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Soil Carbon Sequestration Potential as Affected by Management Practices in Northern China:A Simulation Study

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Pedosphere 2014年第4期24卷 529-543页

作者： WANG Guo-Cheng WANG en-li HUANG Yao XU Jing-Jing State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry(LAPC) Institute of Atmospheric PhysicsChinese Academy of Sciences CSIRO Land & Water Black MountainCanberraACT 2601(Australia) State Key Laboratory of Vegetation and environmental Change(LVEC) Institute of BotanyChinese Academy of Sciences

Soil has been identified as a possible carbon （C） sink for sequestering atmospheric carbon dioxide （CO2）. However, soil organic carbon （SOC） dynamics in agro-ecosystems is affected by complex interactions of various factors including climate, soil and agricultural management practices, which hinders our understanding of the underlying mechanisms. The objectives of this study were to use the Agricultural Production Systems simulator （APSIM） model to simulate the long-term SOC dynamics under different management practices at four long-term experimental sites, Zhengzhou and Xuzhou with double cropping systems and Gongzhuling and Urtimqi with single cropping systems, located in northern China. Firstly, the model was calibrated using information from the sites and literature, and its performance to predict crop growth and SOC dynamics was examined. The calibrated model was then used to assess the impacts of different management practices, including fertilizer application, irrigation, and residue retention, on C dynamics in the top 30 cm of the soil by scenario modelling. Results indicate a significant SOC sequestration potential through improved management practices of nitrogen （N） fertilizer application, stubble retention, and irrigation. Optimal N fertilization （Nopt） and 100% stubble retention （R100） increased SOC by about 11.2%, 208.29%, and 283.67% under irrigation at Gongzhuling, Zhengzhou, and Xuzhou, respectively. Soil organic carbon decreased rapidly at lJriimqi under irrigation, which was due to the enhanced decomposition by increased soil moisture. Under rainfed condition, SOC remained at a higher level. The combination of Nopt and R100 increased SOC by about 0.46% under rainfed condition at /Jr/imqi. Generally, agricultural soils with double cropping systems （Zhengzhou and Xuzhou） showed a greater potential to sequester C than those with single cropping systems （Gongzhuling and Urumqi）.

关键词： agro-ecosystems APSIM model fertilizer application irrigation residue retention scenario analysis soil organic carbon

基于群体决策熵优化-CRITIC算法评价灌溉水源适宜性

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节水灌溉 2024年第5期 100-106页

作者：丁思羽陈菁贺一凡仲莉恩李金刚王收颜爱忠钟铭可河海大学农业科学与工程学院南京210098 内蒙古农业大学林学院呼和浩特010018 巴彦淖尔市发展和改革委员会内蒙古巴彦淖尔015000 中苏科技股份有限公司南京211100

干旱半干旱地区缺乏针对性的灌溉水源适宜性评价方法,且评价方法适用性不强,指标较为单一,无法运用至多种水源,故以干旱半干旱地区为研究对象,探究能适用于不同灌溉水源适宜性的评价方法。综合考虑灌溉水源可供应量、灌溉水供应及时程... 详细信息

干旱半干旱地区缺乏针对性的灌溉水源适宜性评价方法,且评价方法适用性不强,指标较为单一,无法运用至多种水源,故以干旱半干旱地区为研究对象,探究能适用于不同灌溉水源适宜性的评价方法。综合考虑灌溉水源可供应量、灌溉水供应及时程度、提水能耗费、灌溉水温等因素构建灌溉水源适宜性评价指标体系,引入群体决策熵优法-CRITIC算法确定评价指标的组合权重,以宁夏平罗县3种可利用的灌溉水源为典型案例,结合构建的评价指标体系及权重确定方法,采用TOPSIS法对3种不同水源4-9月的灌溉适宜性进行综合评价。平罗县黄河水与排水4-9月的贴近程度值皆大于0.31,均适宜灌溉。地下水4月的贴近程度值仅为0.2412,不适宜灌溉,但地下水5-8月的贴近程度值皆大于0.31,适宜灌溉,与宁夏银北灌区实际情况相符。构建的评价指标体系和引入的组合权重确定方法(群体决策熵优化-CRITIC算法)适用于干旱半干旱区的灌溉水源适宜性评价。

关键词：灌溉水源适宜性银北灌区群体决策熵优化组合权重指标体系

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Contrasting Effects of Agricultural Management on Soil Organic Carbon Balance in Different Agricultural Regions of China

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Pedosphere 2013年第6期23卷 717-728页

作者： WANG Guo-Cheng LUO Zhong-Kui WANG en-li HUANG Yao State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of Sciences CSIRO Land & Water Black Mountain State Key Laboratory of Vegetation and environmental Change Institute of BotanyChinese Academy of Sciences

Improving management of soil organic carbon(SOC)has been considered as a substantial mitigation strategy to climate *** such as stubble retention(SR),conservation tillage(ZT),and fertilization are recommended for both promoting production and accumulating ***,whether such management practices can cause net increase in SOC or just a slow-down of SOC decline largely depends on the current status of SOC for a given *** paper synthesized the available SOC data in the croplands of China,and analysed the change of SOC in the top 20 cm soil as a result of management *** results showed that,on average,SOC increased by 18.3%through SR,by 9.1%through ZT,and by 12.4%,36.9%and 41.5%through application of inorganic(IF),organic(OF)and combined inorganic and organic fertilizers(IOF),respectively,compared to those under stubble removal,conventional tillage and no *** SR,ZT,IF,OF and IOF,SOC increased by 16.0%,10.2%,8.2%,32.2%and41.3%,respectively,at the end of the trials compared with the initial values at the start of the *** analysis also showed that in Northeast and Northwest China,SOC in agricultural soils is still decreasing due to *** North and South China,however,SOC appears to have reached a new equilibrium of low SOC state after a long cultivation history,and soils have greater potential to sequester *** analysis highlights the need of taking account of the baseline status to assess the net soil C balance over time and space.

关键词： agricultural practices climate change fertilization residue management tillage

Hsa_circ_0036740 in familial adenomatous polyposis:Immune regulation and neutrophil effects in CRC based on highthroughput assay

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BIOCELL 2023年第11期47卷 2409-2422页

作者： ZHIWANG li HAN YU YUPING liU WEISHenG WU HAIJING ZenG en li Department of Gastrointestinal Surgery Meizhou People’s HospitalMeizhou514031China

Familial adenomatous polyposis(FAP)is an autosomal dominant disease with a high probability of becoming *** RNAs potentially associated with FAP have not been *** this study,a circRNA(circular RNA)expression profile of FAP was established using a circRNA microarray,and differentially expressed circRNAs were verified by *** effects of hsa_circ_0036740 on the malignant behavior of tumor cells(proliferation,apoptosis,and epithelial mesenchymal transition)and the levels of C3A complement protein expression were ***,neutrophils were isolated and co-cultured with colorectal cancer cells(CRCs),followed by measurements of MPO-DNA,citrullinated histone H3,interleukin(IL)-1β,IL-6,and IL-8 *** translocation of arginine deiminase 4(PAD4)was observed using immunofluorescence *** on the high-throughput assay,238 downregulated circRNAs,and 38 upregulated circRNAs were identified.A Kyoto encyclopedia of Genes and Genomes enrichment analysis suggested that immune regulation might be involved in FAP.A total of 10 DECs(differentially expressed circular RNAs)were identified by RT-qPCR,and among them,hsa_circ_0036740 showed the highest fold-change in *** of gain-of-and loss-of-function studies revealed that hsa_circ_0036740 enhanced the malignant behavior of tumor cells,such as metastasis,proliferation,and apoptosis,with an increasing level of C3A ***,hsa_circ_0036740 also significantly increased neutrophil extracellular trap formation and inflammation in neutrophils,as shown by an increased expression of *** conclusion,this study revealed the expression profiles of circRNAs in FAP and confirmed the possible involvement of hsa_circ_0036740 in the immune regulation mediated by ***,hsa_circ_0036740 was suggested as a new therapeutic target for CRC.

关键词： Familial adenomatous polyposis Colorectal cancer Hsa_circ_0036740 Neutrophil extracellular trap Metastasis

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安徽省再生水利用配置试点创建探讨

中国水利 2024年第2期 41-45页

作者：李恩颜冰莫李娟耿雷华水利部交通运输部国家能源局南京水利科学研究院南京210029 河海大学南京210098 太湖流域水文水资源监测中心无锡214024 长江保护与绿色发展研究院南京210098

加强再生水利用对于优化区域用水结构、缓解水资源危机具有重要意义。以安徽省为典型,分析了安徽省合肥市、淮北市及临泉县各试点城市再生水利用配置建设情况,围绕试点建设目标与任务,从规划布局、配置管理、工程建设、输水网络、政策... 详细信息

加强再生水利用对于优化区域用水结构、缓解水资源危机具有重要意义。以安徽省为典型,分析了安徽省合肥市、淮北市及临泉县各试点城市再生水利用配置建设情况,围绕试点建设目标与任务,从规划布局、配置管理、工程建设、输水网络、政策制度等方面论述了安徽省再生水利用配置试点城市创建主要做法,归纳出再生水利用配置五大体系,剖析了再生水利用配置试点城市创建过程中在用水水源、用水过程、用水保障等方面存在的问题,提出了城市再生水利用配置过程中需要具备的本地条件、实施条件、保障条件,以期为其他区域再生水利用配置提供借鉴参考。

关键词：再生水再生水利用配置安徽省试点

Synchronization Control for a Crustal Movement Simulation System Based on a Fuzzy Logic Strategy

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Synchronization Control for a Crustal Movement Simulation Sy...

第36届中国控制会议

作者： Qingzeng Ma en li Yuanqing Xia Zize liang School of Automation Beijing Institute of Technology Institute of Automation Chinese Academy of Sciences

ISBN: (纸本)9781538629185

Crustal movement is a key factor affecting water cycle and related land surface *** this paper,the principle of a class of crustal movement simulation system（CMSS） is *** CMSS proposed in this study is composed of twelve sets of four-legged parallel manipulator with three degrees of *** structure of the parallel manipulator with actuation redundancy is *** the conventional controller design for parallel manipulator,the controller for each kinematic chain usually works independently without considering motion states of other kinematic ***,the platform performance is easily deteriorated duo to the lack of coordination between these kinematic *** this paper,a synchronization error is developed based on the mechanism characteristic of multiple kinematic ***,a synchronization controller is designed using the proposed synchronization error and fuzzy logic *** our design,each kinematic chain not only tracks its own desired trajectory,but also cooperates with other kinematic ***,according to synchronization error,the synchronization controller will determine that which chain should be speeded up or slowed *** results demonstrate the performance of the proposed control scheme in terms of tracking accuracy and robustness to interferences.

关键词： Crustal Movement Parallel Manipulator Synchronization Control Fuzzy Logic

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双弯弯管水力特性数值模拟分析

中国测试 2024年第5期50卷 19-28页

作者：吴森林王秋良甘杜芬李恩王一帆刘云长江大学石油工程学院湖北武汉430100 深圳市水务规划设计院股份有限公司广东深圳518000 桂林电子科技大学计算机工程学院广西桂林541000

为探究不同夹角、流道结构、雷诺数下双弯弯管水力特性,揭示其不同夹角、流道结构、雷诺数、局部水头损失相关关系,以DN192 mm为例,建立弯弯、弯折、折弯、折折4种流道不同角度的三维结构模型,通过数值模拟计算和后处理,得到DN192 mm双... 详细信息

为探究不同夹角、流道结构、雷诺数下双弯弯管水力特性,揭示其不同夹角、流道结构、雷诺数、局部水头损失相关关系,以DN192 mm为例,建立弯弯、弯折、折弯、折折4种流道不同角度的三维结构模型,通过数值模拟计算和后处理,得到DN192 mm双弯弯管不同夹角、流道结构、雷诺数下水力特性及流场分布。结果表明:DN192 mm双弯弯管的局部阻力系数与夹角主要呈现二次抛物线关系变化,随着弯曲角度的增大呈先减小后增大的趋势,所有组合弯管在角度为π/6时局部阻力损失系数达到最小;相同条件下,弯弯组合弯管结构最好,弯折组合与折弯组合较好,折折组合最差;在双弯组合弯管设计中,入流方向与过渡段夹角应在π/6左右为宜。

关键词：双弯弯管夹角数值模拟水力特性局部阻力系数

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酿酒专用稻千乡优7954的品种特性及高产种植技术

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农业技术与装备 2024年第6期 147-149页

作者：何林李恩李小艳王海鹏罗涛蒋李何四川省内江市农业科学院四川内江641000

内江市农业科学院培育成功的千乡优7954新品种,于2023年通过四川省农作物品种审定委员会审定,审定编号为川审稻20233007,是四川省审定的首批酿酒专用稻之一。从选育过程、品种特征特性、种植技术要点等方面,详细介绍了千乡优7954,供同... 详细信息

内江市农业科学院培育成功的千乡优7954新品种,于2023年通过四川省农作物品种审定委员会审定,审定编号为川审稻20233007,是四川省审定的首批酿酒专用稻之一。从选育过程、品种特征特性、种植技术要点等方面,详细介绍了千乡优7954,供同行和种植户参考。

关键词：酿酒专用稻千乡优7954 品种特性种植技术

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数字时代运动员数据权利保护探究

体育文化导刊 2024年第8期 42-46,54页

作者：张佳星张恩利冯洁何棚城邢天胜西安体育学院体育经济与管理学院西安710068 西安体育学院体育法学研究中心西安710068

运用文献资料、逻辑分析、案例分析等方法,探讨数字时代运动员数据权利保护价值、困境,并提出保护策略。价值:维护个人隐私,保障权利归属,提升数据经济价值。困境:数据隐私权保护不到位,个人信息自决权保护欠缺,数据财产权保护力度不足... 详细信息

运用文献资料、逻辑分析、案例分析等方法,探讨数字时代运动员数据权利保护价值、困境,并提出保护策略。价值:维护个人隐私,保障权利归属,提升数据经济价值。困境:数据隐私权保护不到位,个人信息自决权保护欠缺,数据财产权保护力度不足。保护策略:规范数据采集获取行径,遵循数据隐私权保护原则;维护数据占有主体权益,落实个人信息自决权保护;建立健全数据产权系统,加强数据财产权保护力度。

关键词：体育管理运动员数据权利数字时代