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| 1 | Mass elevation effect and its forcing on timberline altitude显示文摘集体举起效果的概念(massenerhebungseffect, MEE ) 被 A 介绍。de Quervain 大约 100 年以前排队为象树那样的温度相关的参数说明观察趋势并且比在他们的外部边缘上在中央阿尔卑斯山脉发生在更高的举起的 snowline。它广泛地也在世界的另外的区域被观察了,但是没有重要,更不用说量,关于这现象的研究。特别,它完全通常在开发树带界线举起的恰当的模型被忽视了,与仅仅看作影响因素的经度或纬度。这篇论文试着确定到树带界线的 MEE 的贡献举起。认为更多广泛陆地团并且特别越高在陆地质量的内部的山底,越 greater 集体举起效果,这篇论文作为 MEE 的大小拿山底举起(MBE ) 。我们收集树带界线举起的 157 个数据点,并且把他们的纬度,经度和 MBE 用作独立变量在东南的欧亚的大陆为树带界线举起造一个多重线性回归方程。结果生产到树带界线高度活动范围 25.11% , 29.43% ,和 45.46% 的纬度,经度和 MBE 的贡献分别地。北纬度的诺思 | HAN Fang YAO Yonghui DAI Shibao WANG Chun SUN Ranhao XU Juan ZHANG Baiping | 2012 | Journal of Geographical Sciences2012，22，4： | 12 |
| 2 | A conceptual model for a process-oriented landscape pattern analysis显示文摘Linking landscape patterns to specific ecological processes has been and will continue to be the key topic in landscape ecology.However,this goal is difficult to achieve by using the traditional landscape metric based on the Patch-Mosaic Model(PMM),as they don’t integrate ecological processes with landscape patterns.In this paper,we proposed a conceptual model,i.e.,the Source-Pathway-Sink Model(SPSM),which designates the role of a landscape unit into 'source', 'sink',or 'pathway' based on specific ecological processes during the landscape pattern analysis.While the traditional landscape metrics derived from the PMM model is visual-or geometrical-oriented and lack of linkage to ecological significance,the SPSM model is process-oriented,dynamic,and scale dependent.A comparison between the PMM and the SPSM models shows that the SPSM model is complementary to the PMM model,and can provide a simple and dynamic perspective on landscape pattern analysis.The SPSM model may represent a conceptual innovation in landscape ecology. | Liding CHEN Ranhao SUN Yihe LU | 2019 | Science China Earth Sciences2019，62，12： | 6 |
| 3 | Effects of riparian vegetation patterns on the distribution and potential loss of soil nutrients: a case study of the Wenyu River in Beijing显示文摘一个河边的生态系统是在一条河隧道和陆上的生态系统之间的一个生态的转变地区。河边的生态系统在维持溪流健康和银行稳定起一个重要作用。因为人的活动,河边的植被的类型沿着 Wenyu 河极大地变化了。这研究由于土壤营养素损失在水污染上检验河边的植被模式的影响。到高地的来自河隧道的四个河边的植被模式被选择为这研究的焦点:草地,农田,草地农田,和 grassland-manmade 草坪。沿着植被模式和滋养的损失的潜在的风险的土壤营养素的不同分布被观察并且比较。结果证明河边的农田有全部的氮(TN ) 的最低价值,全部的磷(TP ) ,可得到的氮(一) ,可得到的磷(AP ) ,和有机物(OM ) ,但是它有最高的土壤体积密度(BD ) 。土壤 TN 的分布, TP,一, AP,和 OM 为河边的农田向河隧道从高地展出了一个衰退趋势,而一个不同趋势为河边的草地被观察。草地农田和 grassland-manmade 草坪的植被模式证明在更低的斜坡的草地有更多的营养素和 OM,但是在上面的斜坡比农田或 manmade 草坪降低土壤 BD。那么,降低斜坡的草地可以从高地拦截并且渗透表面流量。降低斜坡的草地有土壤 TN 的高水平, TP,一,并且 AP,并且因此,它可以成为滋养的损失的新来源。我们的结果建议河边的植被的管理应该被改进,特别地在浓密地占据的区域,到控制土壤侵蚀和河污染。 | Erhui GUO Liding CHEN Ranhao SUN Zhaoming WANG | 2015 | Frontiers of Environmental Science & Engineering2015，9，2： | 6 |
| 4 | Analysis and assessment of heavy metal contamination in surface water and sediments: a case study from Luan River, Northern China显示文摘重金属 Cu, Ni, Pb, Zn, Cd,和 Cr 的集中从 Luan 河 inChina 在表面水和沉积里被检验,。与在 Cu 和 Ni 的衰落,集中在下游的车站在表面水里发现了。这发现建议水水流是在重金属污染的一个主要解释因素。在河的中间的活动范围观察的许多 Cr, Pb,和 Cd 在本地区域显示重金属污染,尽管 Daheiting 水库下游地在水里的集中有明显的减少。人为的活动贡献重金属污染沉积,这因此是的离开河更远的沉积也建议的在看见的 Cu , Pb ,和 Ni 的重要升起趋势用作环境指示物,与沉积,评价用geo累积索引被进行(我<潜水艇class=“ a-plus-plus ”> geo )和潜在的生态的风险索引( RI )。我 < 潜水艇 class= “ a-plus-plus ” > geo 价值揭示了那 Cd (3.13 ) , Cr (2.39 ) 在 Luan 河里显著地积累了。RI 珍视因为采样车站的大多数(89%) 比 300 高,建议来自 Luan 河的那沉积提出严重生态的风险,与在上面、中间的溪流的比那下游地高的潜在的生态的风险。在水里的 Pb/Ni 和在沉积的 Cr/Ni 之中的好关联被观察。簇分析建议 Cd 可以有各种各样的起源,从人为的来源被导出。 | Zhaoming WANG Ranhao SUN Haiping ZHANG Liding CHEN | 2015 | Frontiers of Environmental Science & Engineering2015，9，2： | 5 |
| 5 | Surface-enhanced Raman scattering for mixing state characterization of individual fine particles during a haze episode in Beijing,China显示文摘The nondestructive characterization of the mixing state of individual fine particles using the traditional single particle analysis technique remains a challenge.In this study,fine particles were collected during haze events under different pollution levels from September 5 to 112017 in Beijing,China.A nondestructive surface-enhanced Raman scattering(SERS)technique was employed to investigate the morphology,chemical composition,and mixing state of the multiple components in the individual fine particles.Optical image and SERS spectral analysis results show that soot existing in the form of opaque material was predominant during clear periods(PM_(2.5)≤75μg/m^(3)).During polluted periods(PM_(2.5)>75μg/m^(3)),opaque particles mixed with transparent particles(nitrates and sulfates)were generally observed.Direct classical least squares analysis further identified the relative abundances of the three major components of the single particles:soot(69.18%),nitrates(28.71%),and sulfates(2.11%).A negative correlation was observed between the abundance of soot and the mass concentration of PM_(2.5).Furthermore,mapping analysis revealed that on hazy days,PM_(2.5)existed as a core-shell structure with soot surrounded by nitrates and sulfates.This mixing state analysis method for individual PM_(2.5)particles provides information regarding chemical composition and haze formation mechanisms,and has the potential to facilitate the formulation of haze prevention and control policies. | Hui Chen Fengkui Duan Jingjing Du Ranhao Yin Lidan Zhu Jinlu Dong Kebin He Zhenli Sun Suhua Wang | 2021 | Journal of Environmental Sciences2021，33，6： | 2 |
| 6 | Spatial Scale Effects of Water Erosion Dynamics:Complexities, Variabilities, and Uncertainties显示文摘Severe water erosion is notorious for its harmful effects on land-water resources as well as local societies. The scale effects of water erosion, however, greatly exacerbate the difficulties of accurate erosion evaluation and hazard control in the real world. Analyzing the related scale issues is thus urgent for a better understanding of erosion variations as well as reducing such erosion. In this review article, water erosion dynamics across three spatial scales including plot, watershed, and regional scales were selected and discussed. For the study purposes and objectives, the advantages and disadvantages of these scales all demonstrate clear spatial-scale dependence. Plot scale studies are primarily focused on abundant data collection and mechanism discrimination of erosion generation, while watershed scale studies provide valuable information for watershed management and hazard control as well as the development of quantitatively distributed models. Regional studies concentrate more on large-scale erosion assessment, and serve policymakers and stakeholders in achieving the basis for regulatory policy for comprehensive land uses. The results of this study show that the driving forces and mechanisms of water erosion variations among the scales are quite different. As a result, several major aspects contributing to variations in water erosion across the scales are stressed: differences in the methodologies across various scales, different sink-source roles on water erosion processes, and diverse climatic zones and morphological regions. This variability becomes more complex in the context of accelerated global change. The changing climatic factors and earth surface features are considered the fourth key reason responsible for the increased variability of water erosion across spatial scales. | WEI Wei CHEN Liding YANG Lei FU Bojie SUN Ranhao | 2012 | Chinese Geographical Science2012，22，2： | 2 |
| 7 | Cooling effects of wetlands in an urban region: The case of Beijing显示文摘 | Ranhao Sun Ailian Chen Liding Chen Yihe Lü | 2012 | Ecological Indicators2012，，： | 1 |
| 8 | Bandgap engineering of tetragonal phase CuFeS_(2)quantum dots via mixed-valence single-atomic Ag decoration for synergistic Cr(VI)reduction and RhB degradation显示文摘Bandgap engineering through single-atom site binding on semiconducting photocatalyst can boost the intrinsic activity,selectivity,carrier separation,and electron transport.Here,we report a mixed-valence Ag(0)and Ag(I)single atoms co-decorated semiconducting chalcopyrite quantum dots(Ag/CuFeS_(2)QDs)photocatalyst.It demonstrates efficient photocatalytic performances for specific organic dye(rhodamine B,denoted as RhB)as well as inorganic dye(Cr(VI))removal in water under natural sunlight irradiation.The RhB degradation and Cr(VI)removal efficiencies by Ag/CuFeS_(2)QDs were 3.55 and 6.75 times higher than those of the naked CuFeS_(2)QDs at their optimal pH conditions,respectively.Besides,in a mixture of RhB and Cr(VI)solution under neutral condition,the removal ratio has been elevated from 30.2%to 79.4%for Cr(VI),and from 95.2%to 97.3%for RhB degradation by using Ag/CuFeS_(2)QDs after 2 h sunlight illumination.The intrinsic mechanism for the photocatalytic performance improvement is attributed to the narrow bandgap of the single-atomic Ag(I)anchored CuFeS_(2)QDs,which engineers the electronic structure as well as expands the optical light response range.Significantly,the highly active Ag(0)/CuFeS_(2)and Ag(I)/CuFeS_(2)effectively improve the separation efficiency of the carriers,thus enhancing the photocatalytic performances.This work presents a highly efficient single atom/QDs photocatalyst,constructed through bandgap engineering via mixed-valence single noble metal atoms binding on semiconducting QDs.It paves the way for developing high-efficiency single-atom photocatalysts for complex pollutions removal in dyeing wastewater environment. | Yangzi Shangguan Yuanhao Zhou Renji Zheng Xuezhen Feng Qiuyue Ge Ranhao Wang Dazhong Yang Wenfei Wei Xiaoyong Wu Jia Lin Hong Chen | 2021 | Chinese Chemical Letters2021，32，11： | 1 |
| 9 | Regional-scale Identification of Three-dimensional Pattern of Vegetation Landscapes显示文摘The altitudinal pattern of vegetation is usually identified by field surveys,however,these can only provide discrete data on a local mountain.Few studies identifying and analyzing the altitudinal vegetation pattern on a regional scale are available.This study selected central Inner Mongolia as the study area,presented a method for extracting vegetation patterns in altitudinal and horizontal directions.The data included a vegetation map at a 1∶1 000 000 scale and a digital elevation model at a 1∶250 000 scale.The three-dimensional vegetation pattern indicated the distribution probability for each vegetation type and the transition zones between different vegetation landscapes.From low to high elevations,there were five vegetation types in the southern mountain flanks,including the montane steppe,broad-leaved forest,coniferous mixed forest,montane dwarf-scrub and sub-alpine shrub-meadow.Correspondingly,only four vegetation types were found in the northern flanks,except for the montane steppe.This study could provide a general model for understanding the complexity and diversity of mountain environment and landscape. | SUN Ranhao ZHANG Baiping CHEN Liding | 2014 | Chinese Geographical Science2014，24，1： | 1 |
| 10 | Temporal variability of global potential water erosion based on an improved USLE model显示文摘Assessing spatiotemporal variation in global soil erosion is essential for identifying areas that require greater attention and management under the effects of anthropogenic activities and climate change.Soil erosion can be modelled using the universal soil loss equation(USLE),which includes rainfall erosivity(R-factor),vegetation cover(C-factor),topography(LS-factor),soil erodibility(K-factor),and management practices(P-factor).However,global soil erosion modeling faces numerous challenges,including data acquisition,calculation processes,and parameter calibration under different climatic and topographic backgrounds.Thus,we presented an improved USLE-based model using highly distributed parameters.The R-,C-,and P-factors were modified by the climate zone,country,and topography.This distributed model was applied to estimate the intensity and variations in global soil erosion from 1992 to 2015.We validated the accuracy of this model by comparing simulations with measurements from 11,439 plot years of erosion data.The results showed that i)the average global erosion rate was 5.78 t ha^(-1)year^(-1),with an increase rate of 4.26×10^(-3)t ha^(-1)year^(-1);ii)areas with significantly increasing erosion accounted for 16%of the land with water erosion,whereas those with significantly decreasing erosion accounted for 7%;and iii)areas with severe erosion included the western Ghats,Abyssinian Plateau,Brazilian Plateau,south and east of the Himalayas,and western coast of South America.Intensified erosion occurred mainly on the Amazon Plain and the northern coast of the Mediterranean.This study provides an improved water erosion prediction model and accurate information for researchers and policymakers to identify the drivers underlying changes in water erosion in different regions. | Jialei Li Muqi Xiong Ranhao Sun Liding Chen | 2024 | International Soil and Water Conservation Research2024，12，1： | 0 |
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