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Impact of Climate Change on Crop-cropland Coupling Relationship:A Case Study of the Loess Plateau in China

Chinese Geographical Science 2025年第1期35卷 92-110页

作者： li shunke liU Yansui SHAO Yajing WANG Xiaochen College of Urban and Environmental Sciences Northwest UniversityXi’an 710127China Institute of Geographic Sciences and Natural Resources Research Chinese Academy of SciencesBeijing 100101China Faculty of Geographical Science and Engineering Henan UniversityZhengzhou 450046China

Climate change brings new challenges to the sustainable development of agriculture in the new *** grasping the patterns of climate change impacts on agricultural systems is crucial for ensuring agricultural sustainability and food *** the Loess Plateau(LP),China as an example,this study used a coupling coordination degree model and spatial autocorrelation analysis to portray the spatial and temporal features of crop-cropland coupling relationship from 2000 to 2020 and explored the impact law of climate change through geographically and temporally weighted regression(GTWR).The results were as follows:1)the crop-cropland coupling coordination degree of the LP showed a gradual upward trend from 2000 to 2020,forming a spatial pattern with lower values in the central region and higher values in the surrounding areas.2)There was a positive correlation in the spatial distribution of cropcropland coupling coordination degree in the LP from 2000 to 2020,and the high value-low value(H-L)and low value-low value(L-L)agglomerations continued to expand eastward,while the spatial and temporal evolution of the high value-high value(H-H)and low value-high value(L-H)agglomerations was not obvious.3)The impacts of climatic elements on crop-cropland coupling coordination degree in the LP showed strong heterogeneity in time *** inhibitory impacts of summer days(SU)and frost days(FD)accounted for a higher proportion,while the annual average temperature(TEM)had both promoting and inhibiting *** impacts proportion and intensity of extreme heavy precipitation day(R25),continuous drought days(CDD),and annual precipitation(PRE)all experienced significant changes.4)In space,the impacts of SU and FD on the crop-cropland coupling coordination degree varied with latitude and *** adaptability of the LP to R25 gradually strengthened,and the extensions of CDD and increase of PRE led to the increasing inhibition beyond the eastern region of LP,and TEM sh

关键词： climate change crop-cropland coupling relationship geographically and temporally weighted regression(GTWR) extreme weather events Loess Plateau,China

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Evolutionary characteristics and influencing factors of agricultural regional system in the Loess Plateau of China under rapid urbanization

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Journal of Mountain Science 2024年第11期21卷 3650-3668页

作者： li shunke liU Yansui li Yuheng SHAO Yajing WANG Xiaochen College of Urban and Environmental Sciences Northwest UniversityXi’an 710127China Yellow River Institute of Shaanxi Province Northwest UniversityXi'an 710127China Institute of Geographic Sciences and Natural Resources Research Chinese Academy of SciencesBeijing 100101China

The rapid expansion of cities seriously threatens the sustainable development of agriculture in *** the evolution law and influencing mechanism of agricultural regional system in the process of urbanization is of great significance for promoting sustainable development of agriculture in *** paper takes the Loess Plateau(LP)as an example,and constructs a research framework to study the effect of urbanization on agricultural regional system through the lens of human-earth interaction,aiming at elucidating the evolutionary characteristics of agricultural regional system and revealing the impact law of *** results show that:(1)The growth trend of the evolution index of the agricultural regional system in the LP was significant,gradually evolving into a spatial pattern of"high in the north and south,low in the east and west".(2)The hot spot and sub-hot spot zones of the agricultural regional system evolution index in the LP were mainly distributed in the south and north,while the cold spot and sub-cold spot zones were primarily located in the center,east and west.(3)The levels of agricultural mechanization,agricultural land productivity,cropland area,and agricultural labor productivity were the main internal influencing factors of the agricultural regional system in the *** obstacle degree of agricultural mechanization level,cropland area,and the proportion of agricultural employees increased over time,while the obstacle degree of agricultural land productivity and grain yield capacity decreased.(4)The impact of population urbanization in the LP showed a spatial pattern of"inhibition in the southeast and promotion in the northwest",the impact of economic urbanization was dominated by inhibition,and the impact of land urbanization showed a spatial pattern of"promotion in the whole and inhibition in the local".This study provides ideas for the comprehensive research on the evolution and influencing factors of agricultural regional system,

关键词： Agricultural regional system Loess Plateau Urbanization Geographically and temporally weighted regression

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内镜经鼻径路海绵窦区域肿瘤手术

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中华耳鼻咽喉头颈外科杂志 2023年第2期58卷 176-180页

作者：李顺科姜彦青岛大学附属医院耳鼻咽喉头颈外科及鼻颅底外科、山东省医药卫生耳鼻咽喉头颈外科重点实验室青岛266003

海绵窦区结构复杂,诸多神经及重要血管穿行其中,累及此处的肿瘤治疗方式包括硬膜内入路、硬膜外入路和内镜经鼻入路。本综述围绕内镜经鼻入路,就海绵窦区肿瘤的种类、手术入路及手术技巧等进行介绍。

关键词：手术入路肿瘤手术肿瘤治疗海绵窦硬膜内硬膜外入路内镜经鼻入路手术技巧

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秦巴山区社会-生态系统恢复力权衡-协同关系及驱动力——以陕南地区为例

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山地学报 2023年第4期41卷 571-583页

作者：李顺可杨新军石若晗王菲陈佳西北大学城市与环境学院西安710127

秦巴山区是中国重要的生态功能区,面临生态环境保护与社会经济发展的双重压力。探究秦巴山区社会-生态系统相互作用关系对推动区域高质量发展具有重要的现实意义。目前已有研究受限于系统复杂性,仅聚焦于社会-生态系统恢复力的整体性评... 详细信息

秦巴山区是中国重要的生态功能区,面临生态环境保护与社会经济发展的双重压力。探究秦巴山区社会-生态系统相互作用关系对推动区域高质量发展具有重要的现实意义。目前已有研究受限于系统复杂性,仅聚焦于社会-生态系统恢复力的整体性评价,缺乏对各子系统之间的权衡与协同关系的讨论。本文以陕南地区为例,从社会、经济、生态子系统,脆弱性与应对能力两个维度建立恢复力指标体系,使用TOPSIS模型对陕南地区2005—2020年社会-生态系统恢复力进行测度,通过相关性分析衡量社会-生态系统恢复力各子系统间权衡与协同关系,并识别其主要驱动力。结果表明:(1)2005—2020年陕南地区社会、经济、生态系统和社会-生态系统恢复力均有不同程度的提升。(2)生态系统脆弱性分别与生态系统应对能力、社会系统脆弱性之间存在权衡关系,其他子系统之间主要表现为波动变化的协同关系。(3)与权衡关系相关的主要障碍因子为农村居民生活水平、地形破碎程度和垃圾处理能力;与协同关系相关的主要贡献因子为第一、二产业发展水平、地方财政实力、农村居民生活水平、垃圾处理能力以及教育发展水平。本研究从权衡与协同关系的问题视角出发解析社会-生态系统恢复力,可以为秦巴山区高质量发展提供优化对策与建议。

关键词：社会-生态系统恢复力权衡与协同

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石羊河流域农户生计脆弱性测度及致脆机理

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水土保持研究 2023年第6期30卷 386-395,405页

作者：石若晗陈佳唐红林李顺可张小文西北大学城市与环境学院西安710127 陕西省地表系统与环境承载力重点实验室西安710127

[目的]有效揭示农户生计脆弱性影响因子的作用过程以及农户生计脆弱性的致脆机理,为石羊河流域乃至整个中国生态脆弱区农户生计可持续发展提供科学参考。[方法]基于石羊河流域样带农户调查数据,运用综合指数法、脆弱性函数评估模型和障... 详细信息

[目的]有效揭示农户生计脆弱性影响因子的作用过程以及农户生计脆弱性的致脆机理,为石羊河流域乃至整个中国生态脆弱区农户生计可持续发展提供科学参考。[方法]基于石羊河流域样带农户调查数据,运用综合指数法、脆弱性函数评估模型和障碍度模型等方法,分析石羊河流域农户生计脆弱性的空间格局,识别了流域易脆群体,继而揭示了流域农户生计脆弱性致脆机理。[结果](1)石羊河流域农户生计脆弱性指数为0.644,处于相对较高水平,整体呈现“北高南低”的空间格局,并表现出在县城周边区域低值积聚分布的特征;(2)农户生计脆弱性的大小为:传统农业主导型(0.99)>新型农业型(0.80)>传统非农型(0.64)>非农主导型(0.60)>畜牧主导型(0.49),表现出随着非农化程度增加而脆弱性减小的特征;(3)耕地缩减面积、生态治理、邻里冲突、农业市场波动和农业支出压力是影响农户暴露度-敏感性的前5位障碍因子;耕地面积、社会关系网络、经济收入、牲畜资本量和劳动力数量是影响农户适应能力的前5位障碍因子。[结论]总的来说,农户暴露度-敏感性和适应能力共同构成生计脆弱性动态循环,决定着脆弱性的演化方向和路径。

关键词：农户生计脆弱性样带调查致脆机理石羊河流域

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鼻腔鼻窦颅底孤立性纤维性肿瘤12例临床分析

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临床耳鼻咽喉头颈外科杂志 2024年第6期38卷 518-523页

作者：齐治宇于龙刚颜旭东王琳张雪琰李顺科吴策姜彦青岛大学附属医院耳鼻咽喉头颈外科/鼻颅底外科山东青岛266000

目的总结分析鼻腔鼻窦颅底孤立性纤维性肿瘤(solitary fibrous tumor,SFT)的临床表现、诊疗方法及预后特点。方法回顾性分析青岛大学附属医院耳鼻咽喉头颈外科和颅底外科2014年4月-2022年1月收治的12例鼻腔鼻窦颅底SFT患者的临床资料,... 详细信息

目的总结分析鼻腔鼻窦颅底孤立性纤维性肿瘤(solitary fibrous tumor,SFT)的临床表现、诊疗方法及预后特点。方法回顾性分析青岛大学附属医院耳鼻咽喉头颈外科和颅底外科2014年4月-2022年1月收治的12例鼻腔鼻窦颅底SFT患者的临床资料,其中耳鼻咽喉头颈外科收治患者4例、颅底外科收治患者8例,分析其临床特点、诊疗经过及预后情况。患者均行手术治疗,其中4例术后辅助放化疗,8例未行放化疗。结果术后随访12~60个月,4例术后辅助放化疗的患者均预后良好;8例未行放化疗患者中6例预后良好,另2例复发;4例患者既往有SFT手术史,复发后收治于青岛大学附属医院治疗,其中1例术后复发。所有患者均无转移。结论鼻腔鼻窦颅底SFT较为罕见,对于该病最有效的治疗手段为手术切除,术后辅助放化疗及术后长期随访可以实现较好的预后。综合治疗中完整性手术切除肿瘤是治疗的关键。

关键词：鼻腔鼻窦肿瘤颅底肿瘤孤立性纤维性肿瘤

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以眶尖综合征为首发表现的急性侵袭性真菌性鼻窦炎临床分析

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中国中西医结合耳鼻咽喉科杂志 2024年第2期32卷 119-125页

作者：李顺科颜旭东于龙刚王琳姜立伟姜彦青岛大学附属医院耳鼻咽喉头颈外科及鼻颅底外科山东青岛266003

目的探讨以眶尖综合征(orbit apex syndrome,OAS)为首发表现的急性侵袭性真菌性鼻窦炎(acute invasive fungal rhinosinusitis,AIFRS)的临床特征、早期诊断及治疗方法。方法回顾性分析我院2015年1月~2023年7月收治的7例以OAS为首发表... 详细信息

目的探讨以眶尖综合征(orbit apex syndrome,OAS)为首发表现的急性侵袭性真菌性鼻窦炎(acute invasive fungal rhinosinusitis,AIFRS)的临床特征、早期诊断及治疗方法。方法回顾性分析我院2015年1月~2023年7月收治的7例以OAS为首发表现的AIFRS患者临床资料,其中4例患者行经鼻内镜下鼻窦开放术及坏死组织清理术,并静脉滴注抗真菌药物治疗,3例患者单纯静脉滴注抗真菌药物治疗,重点分析2例典型病例的临床特点、辅助检查、诊疗经过及预后。结果 7例患者中5例死亡,1例单眼视力丧失无改善,1例双眼视力丧失无改善。7例患者鼻窦炎症以后筛、蝶窦黏膜增厚为主,临床症状与影像学检查鼻窦炎症不成比例,均伴有C反应蛋白的升高。结论 AIFRS是一种致命的,发展迅速的感染性疾病,最初的临床表现可能仅为OAS,容易延误治疗,通过临床症状、实验室及影像学检查进行早期识别非常重要,尽早手术清创及局部和全身应用足量的抗真菌药物是改善预后的关键。

关键词：侵袭性真菌性鼻窦炎眶尖综合征诊断治疗

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Creep behavior and effect factors of a TiAl–Nb alloy at high temperature

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Progress in Natural Science:Materials International 2021年第3期31卷 477-485页

作者： shunke Zhang Sugui Tian Gengyu li Ning Tian Fangwei Jin Huichen Yu Xiaoxia Lv Guangyan Wang Deyuan li Shenyang University of Technology Guizhou University of Engineering Science Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation Science and Technology on Advanced High Temperature Structural Materials Laboratory AVIC Beijing Institute of Aeronautical Materials

The effect of solution treatment on the microstructure and creep properties of forged TiAl-Nb alloys was *** results showed that the microstructure of forged alloy mainly consisted of γ/αlamellar colonies and fine equiaxed recrystallized γ/α*** the solution treatment the microstructure of the alloy transformed into a fully lamellar structure due to the lamellar colonies growth by consuming equiaxed *** with the forged alloy the creep life of the solution treated alloy at 800℃/220 MPa increased from 116 h to 339 *** better creep resistance may be attributed to the transform of fine equiaxed γ/αgrain to the lamellar colonies with serrated grain boundaries due to the solution *** deformation mechanism of the solution treated alloy during creep is considered to be dislocation slipping within the lamellar γ/αphases,and the dislocation movement may be hindered by the γ/αinterface and the formation of dislocation *** interaction of the dislocations with the tangles may increase the resistance of the dislocation motion and hence improve the creep resistance of the *** was found that during the creep of the forged alloys the cracks mainly initiated at the equiaxed grain,and in the solution treated alloy the cracks initiated at the grain *** creep continued the cracks propagated and connected to each other,leading to the damage and rupture of the forged and solution treated alloys.

关键词： Forged TiAl–Nb alloy Solution treatment Microstructure Creep Deformation and damage

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Deformation and damage behaviors of as-cast TiAl-Nb alloy during creep

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Progress in Natural Science:Materials International 2018年第5期28卷 618-625页

作者： shunke Zhang Sugui Tian Xiaoxia Lv Huichen Yu Ning Tian Zehui Jiao Guoqi Zhao Deyuan li Guizhou University of Engineering Science Shenyang University of Technology AECC Key Laboratory of Science and Technology on Materials Testing and Evaluation National Key Laboratory of Science and Technology on Advanced High Temperature Structure Materials AECC Beijing Institute of Aeronautical Materials

By means of creep properties measurement and microstructure observation,the deformation and damage behavior of an as-cast TiAl-Nb alloy during creep at temperature near 750°C were *** results showed that the microstructure of the alloy consisted of lamellarγ/α;phase,and the boundaries consisted ofγphase located in between lamellarγ/α;phases with different *** the latter stage of creep,the dislocation networks appeared in the interfaces of lamellarγ/α;phases due to the coarsening of them,which made the coherent interface transforming into the semi-coherent one for reducing its adhesive *** deformation mechanism of the alloy during creep was twinning and dislocations slipping within lamellarγ/α;*** the later period of creep,significant amount of dislocations plied up in the interfaces of lamellarγ/α;phases,which may cause the stress concentration to promote the initiation and propagation of the cracks along the lamellarγ/α;interfaces perpendicular to the stress ***,some cracks on the various cross-sections were connected by tearing edge along the direction of maximum shear stress,up to the creep fracture,which is considered to be the damage and fracture mechanism of alloy during creep at 750°C.

关键词： TiAl-Nb alloy Creep Dislocation network Deformation mechanism Fracture mechanism

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Decreased frontal lobe function in people with Internet addiction disorder

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Neural Regeneration Research 2013年第34期8卷 3225-3232页

作者： Jun liu Fatema Esmail lingjiang li Zhifeng Kou Weihui li Xueping Gao Zhiyuan Wang Changlian Tan Yan Zhang shunke Zhou Department of Radiology Second Xiangya Hosipital Central South University School of Public Administration Central South University Wayne State University Detroit Medical Center Institute of Mental Health Central South University Hunan Provincial Tumor Hospital

In our previous studies, we showed that frontal lobe and brainstem functions were abnormal in online game addicts. In this study, 14 students with Internet addiction disorder and 14 matched healthy controls underwent proton-magnetic resonance spectroscopy to measure cerebral function. Results demonstrated that the ratio of N-acetylaspartate to creatine decreased, but the ratio of cho- line-containing compounds to creatine increased in the bilateral frontal lobe white matter in people with Internet addiction disorder. However, these ratios were mostly unaltered in the brainstem, suggesting that frontal lobe function decreases in people with Internet addiction disorder.

关键词： neural regeneration Internet addiction disorder internet gaming addiction magnetic resonanceimaging magnetic resonance spectroscopy N-acetylaspartate choline-containing compounds creatine grants-supported paper neuroregeneration

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