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| 1 | Full-colour nanoprint-hologram synchronous metasurface with arbitrary hue-saturationbrightness control显示文摘The colour gamut,a two-dimensional(2D)colour space primarily comprising hue and saturation(HS),lays the most important foundation for the colour display and printing industries.Recently,the metasurface has been considered a promising paradigm for nanoprinting and holographic imaging,demonstrating a subwavelength image resolution,a flat profile,high durability,and multi-functionalities.Much effort has been devoted to broaden the 2D HS plane,also known as the CIE map.However,the brightness(B),as the carrier of chiaroscuro information,has long been neglected in metasurface-based nanoprinting or holograms due to the challenge in realising arbitrary and simultaneous control of full-colour HSB tuning in a passive device.Here,we report a dielectric metasurface made of crystal silicon nanoblocks,which achieves not only tailorable coverage of the primary colours red,green and blue(RGB)but also intensity control of the individual colours.The colour gamut is hence extruded from the 2D CIE to a complete 3D HSB space.Moreover,thanks to the independent control of the RGB intensity and phase,we further show that a singlelayer silicon metasurface could simultaneously exhibit arbitrary HSB colour nanoprinting and a full-colour hologram image.Our findings open up possibilities for high-resolution and high-fidelity optical security devices as well as advanced cryptographic approaches. | Yanjun Bao Ying Yu Haofei Xu Chao Guo Juntao Li Shang Sun Zhang-Kai Zhou Cheng-Wei Qiu Xue-Hua Wang | 2019 | Light(Science & Applications)2019,8,1: | 25 |
| 2 | A high strength, anti-fouling, self-healable, and thermoplastic supramolecular polymer hydrogel with low fibrotic response显示文摘The fibrotic response plays an important role in the performance and longevity of implantable devices. Thus, development of effective anti-inflammatory and anti-fibrosis biomaterial implants has become an urgent task. In this work, we developed a novel supramolecular polymer hydrogel through the copolymerization of N-acryloyl glycinamide(NAGA) and carboxybetaine acrylamide(CBAA) in the absence of any chemical crosslinker, which the mechanical properties being tunable through changing the monomer concentration and the monomer ratio over a broad scope. The hydrogel possessed the superior mechanical performances: high tensile strength(~1.13 MPa), large stretchability(~1200%), and excellent compressive strength(~9 MPa) at high monomer concentration and NAGA/CBAA ratio. Introduction of CBAA could promote the self-healability, thermoplasticity of suparmolecular polymer hydrogels at lower temperatures, meanwhile dramatically improving anti-fouling property.Histological analysis and in vitro cytotoxicity assays testified the excellent biocompatibility of the hydrogel. This high strength supramolecular polymer hydrogel with integrated multiple functions holds promising potentials as a scaffold biomaterial for treating degenerated soft supporting tissues. | WANG HongBo LI HaoFei WU YuanHao YANG JianHai LIU WenGuang | 2019 | Science China(Technological Sciences)2019,62,4: | 11 |
| 3 | miR-125a-3p targets MTA1 to suppress NSCLC cell proliferation, migration, and invasion显示文摘联系转移的基因(MTA1 ) 1 在 non-small-cell 肺癌症(NSCLC ) 与房间生长,转移,和幸存被联系。几份以前的报告证明了 microRNAs 通过在他们的种子区域和目标 mRNA 的 3-untranslated 区域之间的相互作用影响基因表示,导致 post-transcriptional 规定。这研究的目的是识别 miRNAs 由指向 MTA1 在 NSCLC 房间压制恶意。在有 MTA1 的 transfection 模仿以后,二根人的 NSCLC 房间线被量的 RT-PCR 并且西方的弄污为 MTA1 的表示分析。酶记者试金被建立测试在 MTA1 和它的在上游的 miRNAs 之间的直接连接。房间增长被 3-(4,5-dimethylthiazol-2-yl ) 估计 -2,5-diphenyltetrazolium 溴化物试金, 5-ethynyl-2-deoxyuridine 分析,和殖民地形成试金。房间移植和侵略能力被愈合创伤的试金和 transwell 试金评估。miRNA/MTA1 轴被量的 RT-PCR 并且从八个 NSCLC 病人的在样品的西方的弄污也探查。在候选人 miRNAs 之中, miR-125a-3p 被显示 post-transcriptionally 在 NSCLC 房间调整 MTA1。这些数据被酶记者试金增强,除了 MTA1 相反地与在 NSCLC 纸巾的 miR-125a-3p 被相关的示范。而且, miR-125a-3p 被发现禁止 NSCLC 房间增长,移植,和侵略,通过下面调整的 MTA1 的一样的机制。我们的报告证明 miR-125a-3p 通过 MTA1 的下面规定禁止 NSCLC 房间的增长,迁居,和侵略,显示在 NSCLC 的 miR-125a-3p/MTA1 轴的角色,并且可以提供新奇卓见进分子的机制 underpinning 疾病和潜在的治疗学的目标。 | Hong Zhang Xiaoxia Zhu Na Li Dianhe Li Zhou Sha Xiaokang Zheng Haofei Wang | 2015 | Acta Biochimica et Biophysica Sinica2015,47,7: | 9 |
| 4 | Bamboo Leaf and Pollen Fossils from the Late Miocene of Eastern Zhejiang,China and their Phytogeological Significance显示文摘Fossil bamboo leaves and pollen from Upper Miocene deposits of the Shengxian Formation in Tiantai and Ninghai counties,eastern Zhejiang,China represent a rare record in Asia.The distinctive pseudopetiole and parallel venation of the leaf blades and the clearly thickened annulus of the pollen aperture place them in the subfamily Bambusoideae.Morphological analysis supports the determination of these fossil leaves as belonging to the genus Bambusium and two new species are described.Bambusium latipseudopetiolus Q.J.Wang et B.N.Sun sp.nov.has a distinctly wide pseudopetiole of 0.23 cm in width and 0.40 cm in length,several vascular bundles on parallel veins,and 5–8 lateral veins on both sides of the midrib.Bambusium longipseudopetiolus Q.J.Wang et B.N.Sun sp.nov.has a distinctly long pseudopetiole of 0.60 cm in length and 0.10 cm in width,several vascular bundles on the pseudopetiole,and 6 lateral veins on both sides of the midrib.Pollen grains from the same layer provide additional evidence of bamboos.They are characterized by 32.0–51.0 μm in diameter,a round pore 3.0–4.0 μm in diameter with a broad thickened annulus 2.5–3.5 μm around,and several conspicuous secondary folds on the exine surface.The morphological analysis leads to their assignment to Graminidites bambusoides Stuchlik.These fossils are important for the study of bamboo phytogeography in China.They demonstrate that there were bamboos growing in southeastern China during the Late Miocene and that bamboos in Zhejiang begin to diversify no later than the Late Miocene.In combination with bamboo fossils from other places,it seems that bamboos had a wide distribution across southern China during the Miocene,ranging from southwestern Yun'nan to southeastern Zhejiang. | WANG Qiujun MA Fujun YANG Yi DONG Junling WANG Haofei LI Ruiyun XU Xiaohui SUN Bainian | 2014 | Acta Geologica Sinica(English Edition)2014,88,4: | 7 |
| 5 | Quercus yangyiensis sp. nov. from the Late Pliocene of Baoshan, Yunnan and Its Paleoclimatic Significance显示文摘A new Quercus(Fagaceae) morphospecies is described based on well-preserved fossil leaves. The fossils were collected from Yangyi Formation of the Upper Pliocene at the Yangyi coalmine, Baoshan, western Yunnan, China. Details of the microstructure of mesophyll tissue are preserved because lithification of the fossils was not complete. The fossil laminas possess typical characteristics of Quercus sect. Heterobalanus: quite thick and coriaceous cuticle; secondary veins bifurcating near the margin in the middle and top of the leaf; and upper epidermis with adaxial hypodermis. Based on a detailed morphological and anatomical comparison with all living and fossil species of Quercus sect. Heterobalanus, the fossil leaves prove to be different in their sparse and garland-shaped multicellular trichomes on the lower epidermis, and so it is described as a new species Quercus yangyiensis He, Li et Sun sp. nov. The much sparser trichomes of our fossils compare well with those of living Quercus sect. Heterobalanus and indicate a more humid climate during the deposition of the Yangyi Formation in the Late Pliocene. | HE Yuli LI Na WANG Zixi WANG Haofei YANG Guolin XIAO Liang WU Jingyu SUN Bainian | 2014 | Acta Geologica Sinica(English Edition)2014,88,3: | 6 |
| 6 | Atomic-scaled surface engineering Ni-Pt nanoalloys towards enhanced catalytic efficiency for methanol oxidation reaction显示文摘Surface engineering is known as an effective strategy to enhance the catalytic properties of Pt-based nanomaterials.Herein,we report on surface engineering Ni-Pt nanoalloys with a facile method by varying the Ni doping concentration and oleylamine/oleicacid surfactant-mix.The alloy-composition,exposed facet condition,and surface lattice strain are,thereby manipulated to optimize the catalytic efficiency of such nanoalloys for methanol oxidation reaction(MOR).Exemplary nanoalloys including Ni_(0.69)Pt_(0.31)truncated octahedrons,Ni_(0.45)Pt_(0.55)nanomultipods and Ni_(0.20)Pt_(0.80)nanoflowers are thoroughly characterized,with a commercial Pt/C catalyst as a common benchmark.Their variations in MOR catalytic efficiency are significant:2.2 A/mgPt for Ni_(0.20)Pt_(0.80)nanoflowers,1.2 A/mgPt for Ni_(0.45)Pt_(0.55)nanomultipods,0.7 A/mgPt for Ni_(0.69)Pt_(0.31)truncated octahedrons,and 0.6 A/mgPt for the commercial Pt/C catalysts.Assisted by density functional theory calculations,we correlate these observed catalysis-variations particularly to the intriguing presence of surface interplanar-strains,such as{111}facets with an interplanar-tensile-strain of 2.6%and{200}facets with an interplanar-tensile-strain of 3.5%,on the Ni_(0.20)Pt_(0.80)nanoflowers. | Aixian Shan Shuoyuan Huang Haofei Zhao Wengui Jiang Xueai Teng Yingchun Huang Chinping Chen Rongming Wang Woon-Ming Lau | 2020 | Nano Research2020,13,11: | 6 |
| 7 | Paliurus(Paliureae,Rhamnaceae) from the Miocene of East China and its Macrofossil-based Phylogenetic and Phytogeographical History显示文摘The extant genus Paliurus Miller is divided into P.ramosissimus and P.spina-christi groups and is diagnostically characterized by distinctive orbicular-winged fruits with a trilocular(or often bilocular) ovary and basally triveined leaves with a subentire to serrate margin.Here,structurally preserved winged fruits and associated compressed leaves of Paliurus(Paliureae,Rhamnaceae) are reported from the Middle-Upper Miocene Shengxian Formation of Tiantai,Zhejiang,eastern China.The fruits can be identified as Paliurus microcarpa Xiang-Chuan Li sp.nov.,the diagnostic characters of external morphology and anatomy of which differ from those of both extant and fossil generic members;the leaves can be designated as Paliurus sp.The species based on winged fruits,P.mkrocarpa,might represent an ancient intermediate link exclusively known across the P.ramosissimus and P.spina-christi groups,showing a closer affinity to the P.ramosissimus group based on the resemblant smaller fruits with a narrower wing,and to the P.spina-christi group based on the similar wing structure and texture,respectively.Morphological analyses of the present and previous fossil fruit records around the world indicate that diversification of Paliurus had begun in northern transpacific regions by the Late Eocene.The macrofossil records,i.e.,fruits and leaves of Paliurus globally when projected on paleoenvironmental maps in view of changing continental positions through time(from Eocene to Miocene) display that the past distribution of the genus was much wider than the present and belongs to a tropical and warm temperate realm of the Northern Hemisphere.Therefore,the modern restricted disjunction in tropical and warm temperate regions of East Asia and South Europe(even eastwards West Asia) might represent glacial refugia for some of the generic ancient lineages to survive severe cold at least since the terminal Pliocene. | LI Xiangchuan WANG Haofei LENG Qin XIAO Liang GUO Junfeng HE Wenlong | 2014 | Acta Geologica Sinica(English Edition)2014,88,5: | 5 |
| 8 | Disulfide-Containing Molecular Sticker Assists Cellular Delivery of DNA Nanoassemblies by Bypassing Endocytosis显示文摘The delivery efficiency of DNA nanoassemblies to the cytosol remains unsatisfactory due to endoand lysosomal entrapment and degradation,which restricts their bioanalytical and biomedical applications.Herein,the authors developed a disulfide-containing molecular sticker(DSMS)assisted approach to achieve efficient cytosolic delivery of DNA nanoassemblies.DSMS is designed to consist of a disulfide unit for thiol-mediated uptake and a guanidinium cation unit for strongly adhering to DNA nanoassemblies.After attaching with DSMS,a set of DNA nanoassemblies maintained their original three-dimensional features but had a different cellular internalization pathway.These results demonstrated that DSMS-DNA nanoassemblies complex did not enter the cells via endocytosis but instead entered through thiol-mediated direct uptake.Taking advantages of this facile assembly,universal applicability,and direct cytosolic delivery,DSMS might serve as a potent agent to facilitate the applications of DNA nanoassemblies in a variety of fields,such as bioimaging,drug delivery,and gene therapy. | Wen Yang Xiaochen Liu Haofei Li Jie Zhou Shan Chen Pengfei Wang Juan Li Huanghao Yang | 2021 | CCS Chemistry2021,3,3: | 2 |
| 9 | Beam manipulating by metallic nano-slits with variant widths显示文摘 | Shi Haofei Wang Changtao Du Chunlei | 2005 | Optics Express2005,13,18: | 1 |
| 10 | Low Spurious Noise Frequency Synthesis Based On ADDS Driven Wideband PLL Architecture 显示文摘 | Wang Hongyu Wang Haofei Ren Lixiang | 2013 | Journal of Beijing Institute of Technology (English Edition)2013,22,4: | 1 |
| 11 | Atomistic dynamics of disconnection-mediated grain boundary plasticity:A case study of gold nanocrystals显示文摘Grain boundary(GB)mediated deformation is a vital contributor to the plasticity of polycrystalline materials,where the disconnection model has become a widely recognized approach to depict the GB dynamics.However,experimental understanding of the atomistic disconnection dynamics remains scarce.In this case study of gold nanocrystals,atomistic disconnection dynamics governing the shear-coupled migration of flat GBs have been systematically investigated via in situ transmission electron microscopy nanomechanical testing supported by molecular dynamics simulations.Specifically,the site-dependent nucleation,shear-driven propagation,and diverse interactions associated with distinct GB disconnections are systematically elucidated and quantitatively compared.Moreover,the disconnection-mediated GB plasticity proves to prevail among different tilt and mixed GBs in gold.Eventually,a conceptual map of disconnection-mediated GB dynamics is established,which would furnish a unified understanding of GB plasticity in metallic materials. | Qi Zhu Haofei Zhou Yingbin Chen Guang Cao Chuang Deng Ze Zhang Jiangwei Wang | 2022 | Journal of Materials Science & Technology2022,,30: | 1 |
| 12 | Giant enhancements of high-order upconversion luminescence enabled by multiresonant hyperbolic metamaterials显示文摘Photonic nanostructures with resonant modes that can generate large electric field(EF) enhancements are applied to enhance light-matter interactions in nanoscale, bringing about great advances in both fundamental and applied science. However, a small hot spot(i.e., the regions with strong EF enhancements) and highly inhomogeneous EF distribution of the resonant modes usually hinder the enhancements of light-matter interactions in a large spatial scale. Additionally, it is a severe challenge to simultaneously generate multiple resonant modes with strong EF enhancements in a broadband spectral range, which greatly limits the capacity of a photonic nanostructure in boosting optical responses including nonlinear conversion, photoluminescence, etc. In order to overcome these challenges, we presented an arrayed hyperbolic metamaterial(AHMM). This AHMM structure is applied to simultaneously enhance the three-photon and four-photon luminescence of upconversion nanoparticles. Excitingly, the enhancement of the three-photon process is 1 order of magnitude larger than previous records, and for the enhancing four-photon process, we achieve an enhancement of 3350 times, greatly beneficial for overcoming the crucial problem of low efficiency in near infrared light upconversion. Our results demonstrated a promising platform for realizing giant enhancements of light-matter interactions, holding potential in constructing various photonics applications such as the nonlinear light sources. | Haofei Xu Zhimin Zhu Jiancai Xue Qiuqiang Zhan Zhangkai Zhou Xuehua Wang | 2021 | Photonics Research2021,9,3: | 1 |
| 13 | Coordinated grain boundary deformation governed nanograin annihilation in shear cycling显示文摘Grain growth and shrinkage are essential to the thermal and mechanical stability of nanocrystalline metals,which are assumed to be governed by the coordinated deformation between neighboring grain boundaries(GBs)in the nanosized grains.However,the dynamics of such coordination has rarely been reported,especially in experiments.In this work,we systematically investigate the atomistic mechanism of coordinated GB deformation during grain shrinkage in an Au nanocrystal film through combined stateof-the-art in situ shear testing and atomistic simulations.We demonstrate that an embedded nanograin experiences shrinkage and eventually annihilation during a typical shear loading cycle.The continuous grain shrinkage is accommodated by the coordinated evolution of the surrounding GB network via dislocation-mediated migration,while the final grain annihilation proceeds through the sequential dislocation-annihilation-induced grain rotation and merging of opposite GBs.Both experiments and simulations show that stress distribution and GB structure play important roles in the coordinated deformation of different GBs and control the grain shrinkage/annihilation under shear loading.Our findings establish a mechanistic relation between coordinated GB deformation and grain shrinkage,which reveals a general deformation phenomenon in nanocrystalline metals and enriches our understanding on the atomistic origin of structural stability in nanocrystalline metals under mechanical loading. | Yingbin Chen Qishan Huang Qi Zhu Kexing Song Yanjun Zhou Haofei Zhou Jiangwei Wang | 2021 | Journal of Materials Science & Technology2021,,27: | 1 |
| 14 | Effect of herba centellae on the expression of HGF and MCP-1显示文摘 | Zhu Zhang Guangce Wang Jiwei Ma Haofei Liu Xitao Zhang Guangling Zhu | 2013 | Experimental and Therapeutic Medicine2013,,2: | 1 |
| 15 | Non-symmetric hybrids of noble metal-semiconductor:Interplay of nanoparticles and nanostructures in formation dynamics and plasmonic applications显示文摘Noble metal-semiconductor hybrids have been employed as fundamental structures in modern technologies. In these hybrids, their cooperative multiple functions attract much attention in recent years because of the interplay of nanoparticles and nanostructures. In this review, we summarize the interplay of nanoparticles and nanostructures in specific kinds of noble metal-semiconductor hybrids, termed as non-symmetric hybrids of noble metal-semiconductor. It particularly refers to metal nanoparticles(or semiconducting quantum dots) at 1-dimensinal(1D) and 2-dimensional(2D) semiconductor(or metal) nanostructures, in contrast to the core/shell and heterodimer nanostructures. First, we discuss the formation dynamics, especially in chemical growth and assembly as well as physical coating and deposition, of non-symmetric noble metal-semiconductor hybrids with nanoparticles on nanostructures. Second, we introduce the plasmon-related applications of these hybrids in heterogeneous catalysis, optoelectronic or photovoltaic devices, all-optical devices, and surface detection or modulation. This review not only provides a comprehensive understanding of the formation mechanisms of the non-symmetric metal-semiconductor hybrid nanostructures, but also may inspire new ideas of novel functional devices and applications based on these systems. | Yinghui Sun Xianzhong Yang Haofei Zhao Rongming Wang | 2017 | Progress in Natural Science:Materials International2017,27,2: | 1 |
| 16 | Petroleum geology of marl in Triassic Leikoupo Formation and discovery significance of Well Chongtan1 in central Sichuan Basin,SW China显示文摘In 2022,the risk exploration well Chongtan1(CT1)in the Sichuan Basin revealed commercial oil and gas flow during test in a new zone–the marl of the second submember of the third member of Leikoupo Formation(Lei-32)of Middle Triassic,recording a significant discovery.However,the hydrocarbon accumulation in marl remains unclear,which restricts the selection and deployment of exploration area.Focusing on Well CT1,the hydrocarbon accumulation characteristics of Lei-32 marl are analyzed to clarify the potential zones for exploration.The following findings are obtained.First,according to the geochemical analysis of petroleum and source rocks,oil and gas in the Lei-32 marl of Well CT1 are originated from the same marl.The marl acts as both source rock and reservoir rock.Second,the Lei-32 marl in central Sichuan Basin is of lagoonal facies,with a thickness of 40–130 m,an area of about 40000 km^(2),a hydrocarbon generation intensity of(4–12)×10^(8) m^(3)/km^(2),and an estimated quantity of generated hydrocarbons of 25×10^(12) m^(3).Third,the lagoonal marl reservoirs are widely distributed in central Sichuan Basin.Typically,in Xichong–Yilong,Ziyang–Jianyang and Moxi South,the reservoirs are 20–60 m thick and cover an area of 7500 km^(2).Fourth,hydrocarbons in the lagoonal marl are generated and stored in the Lei-32 marl,which means that marl serves as both source rock and reservoir rock.They represent a new type of unconventional resource,which is worthy of exploring.Fifth,based on the interpretation of 2D and 3D seismic data from central Sichuan Basin,Xichong and Suining are defined as favorable prospects with estimated resources of(2000–3000)×10^(8) m^(3). | WANG Zecheng XIN Yongguang XIE Wuren WEN Long ZHANG Hao XIE Zengye ZHANG Jianyong TIAN Han LI Wenzheng FU Xiaodong SUN Haofei WANG Xiaofang HU Guoyi ZHANG Yu | 2023 | Petroleum Exploration and Development2023,50,5: | 0 |
| 17 | Telomere-to-telomere genome of the allotetraploid legume Sesbania cannabina reveals transposon-driven subgenome divergence and mechanisms of alkaline stress tolerance显示文摘Alkaline soils pose an increasing problem for agriculture worldwide,but using stress-tolerant plants as green manure can improve marginal land.Here,we show that the legume Sesbania cannabina is very tolerant to alkaline conditions and,when used as a green manure,substantially improves alkaline soil.To understand genome evolution and the mechanisms of stress tolerance in this allotetraploid legume,we generated the first telomere-to-telomere genome assembly of S.cannabina spanning~2,087 Mb.The assembly included all centromeric regions,which contain centromeric satellite repeats,and complete chromosome ends with telomeric characteristics.Further genome analysis distinguished A and B subgenomes,which diverged approximately 7.9 million years ago.Comparative genomic analysis revealed that the chromosome homoeologs underwent large-scale inversion events(>10 Mb)and a significant,transposon-driven size expansion of the chromosome 5A homoeolog.We further identified four specific alkali-induced phosphate transporter genes in S.cannabina;these may function in alkali tolerance by relieving the deficiency in available phosphorus in alkaline soil.Our work highlights the significance of S.cannabina as a green tool to improve marginal lands and sheds light on subgenome evolution and adaptation to alkaline soils. | Haofei Luo Xiaofei Wang Changqing You Xuedan Wu Duofeng Pan Zhiyao Lv Tong Li Dongmei Zhang Zhongbao Shen Xiaodong Zhang Guodao Liu Kaixuan He Qingtong Ye Yajun Jia Qinghua Zhao Xian Deng Xiaofeng Cao Xianwei Song Gai Huang | 2024 | Science China(Life Sciences)2024,67,1: | 0 |
| 18 | New insights into the formation of ammonium nitrate from a physical and chemical level perspective显示文摘High levels of fine particulate matter(PM_(2.5))is linked to poor air quality and premature deaths,so haze pollution deserves the attention of the world.As abundant inorganic components in PM_(2.5),ammonium nitrate(NH_(4)NO_(3))formation includes two processes,the diffusion process(molecule of ammonia and nitric acid move from gas phase to liquid phase)and the ionization process(subsequent dissociation to form ions).In this study,we discuss the impact of meteorological factors,emission sources,and gaseous precursors on NH4NO3 formation based on thermodynamic theory,and identify the dominant factors during clean periods and haze periods.Results show that aerosol liquid water content has a more significant effect on ammonium nitrate formation regardless of the severity of pollution.The dust source is dominant emission source in clean periods;while a combination of coal combustion and vehicle exhaust sources is more important in haze periods.And the control of ammonia emission is more effective in reducing the formation of ammonium nitrate.The findings of this work inform the design of effective strategies to control particulate matter pollution. | Yuting Wei Xiao Tian Junbo Huang Zaihua Wang Bo Huang Jinxing Liu Jie Gao Danni Liang Haofei Yu Yinchang Feng Guoliang Shi | 2023 | Frontiers of Environmental Science & Engineering2023,17,11: | 0 |
| 19 | Soil splash erosion:An overlooked issue for sustainable rubber plantation in the tropical region of China显示文摘Soil erosion by water is known to be a major driver of land degradation.Splash erosion is the initial stage of water erosion and directly contributes to the detachment of soil particles on sloping land.Splash erosion may be exacerbated or mitigated by ongoing land use/cover change.To estimate the effects of various land use and management systems on splash erosion in the humid tropics,we measured the actual splash erosion under natural rainfall conditions in a tropical rainforest(TR),rubber monoculture(RM),and four rubber agroforestry ecosystems in Xishuangbanna,Southwestern China.The average cumulative splash mass in the RM was 48.7 times higher compared to that in the TR,indicating that the replacement of TR by RM results in severe splash erosion.In the rubber agroforestry systems,the throughfall kinetic energy and splash mass were 34-76%and 86-97%lower,respectively,than that in the RM,indicating that intercropping crops with rubber trees can effectively alleviate erosive power of throughfall and thus splash erosion.Under all land use regimes,in the plots where the litter layer was removed,splash erosion was significantly(2.0-12.1 times)higher and more spatially heterogeneous than in those with litter cover.This highlighted the key role of the forest litter layer in protecting the soil from raindrop detachment.In the study area,the actual splash erosion was strongly correlated with the conditions of precipitation(amount and intensity(I10)of rainfall)and the vegetation structure(especially the crown base height,leaf area index,and canopy cover),but weakly correlated with the soil properties.Given the importance of near-ground intercrops(height<5 m)for improving the vegetation structure,surface cover,and soil conditions,the intercropping of Camellia sinensis and Theobroma cacao with rubber trees is a promising approach for controlling splash erosion and also has benefits on the sus-tainable development of rubber plantation. | Xiai Zhu Xia Yuan Enfu Lu Bin Yang Haofei Wang Yiyuan Du Ashutosh Kumar Singh Wenjie Liu | 2023 | International Soil and Water Conservation Research2023,11,1: | 0 |
| 20 | 单细胞RNA测序系统重建调控生长板发育的分子级联显示文摘生长板(GP)是骨骼延长和再生的关键结构。虽然人们已经鉴定了GP发育的一些关键调控子,但对这一过程还缺乏系统性了解。 | Junxiang Li Haofei Luo Rui Wang Jidong Lang Siyu Zhu Zhenming Zhang Jianhuo Fang Keke Qu Yuting Lin Haizhou Long Yi Yao Geng Tian 吴琼 | 2017 | 科学新闻2017,19,4: | 0 |