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| 1 | C:N:P stoichiometry of Ericaceae species in shrubland biomes across Southern China:influences of climate,soil and species identity显示文摘Aims Carbon(C),nitrogen(N)and phosphorus(P)stoichiometry strongly affect functions and nutrient cycling within ecosystems.However,the related researches in shrubs were very limited.In this study,we aimed to inves-tigate leaf stoichiometry and its driving factors in shrubs,and whether stoichiometry significantly differs among closely related species.Methods We analyzed leaf C,N and P concentrations and their ratios in 32 species of Ericaceae from 161 sites across southern China.We examined the relationships of leaf stoichiometry with environmen-tal variables using linear regressions,and quantified the interactive and independent effects of climate,soil and species on foliar stoi-chiometry using general linear models(GLM).Important Findings The foliar C,N and P contents of Ericaceae were 484.66,14.44 and 1.06 mg g−1,respectively.Leaf C,N and P concentrations and their ratios in Ericaceae were significantly related with latitude and altitude,except the N:P insignificantly correlated with latitude.Climate(mean annual temperature and precipitation)and soil properties(soil C,N and P and bulk density)were significantly influenced element stoichiom-etry.The GLM analysis showed that soil exerted a greater direct effect on leaf stoichiometry than climate did,and climate affected leaf traits mainly via indirect ways.Further,soil properties had stronger influ-ences on leaf P than on leaf C and N.Among all independent factors examined,we found species accounted for the largest proportion of the variation in foliar stoichiometry.These results suggest that species can largely influence foliar stoichiometry,even at a lower taxonomic level. | Qiang Zhang Qing Liu Huajun Yin Chunzhang Zhao Lin Zhang Guoying Zhou Chunying Yin Zhijun Lu Gaoming Xiong Yuelin Li Jiaxiang Li Wenting Xu Zhiyao Tang Zongqiang Xie | 2019 | Journal of Plant Ecology2019，12，2： | 4 |
| 2 | Winter soil CO_2 efflux in two contrasting forest ecosystems on the eastern Tibetan Plateau, China显示文摘Significant CO_2 fluxes from snow-covered soils occur in cold biomes. However, little is known about winter soil respiration on the eastern Tibetan Plateau of China. We therefore measured winter soil CO_2 fluxes and estimated annual soil respiration in two contrasting coniferous forest ecosystems(a Picea asperata plantation and a natural forest).Mean winter soil CO_2 effluxes were 1.08 lmol m^-2s^-1in the plantation and 1.16 lmol m^-2s^-1in the natural forest.These values are higher than most reported winter soil CO_2 efflux values for temperate or boreal forest ecosystems.Winter soil respiration rates were similar for our two forest ecosystems but mean soil CO_2 efflux over the growing season was higher in the natural forest than in the plantation. The estimated winter and annual soil effluxes for the natural forest were 176.3 and 1070.3 g m^-2, respectively, based on the relationship between soil respiration and soil temperature,which were 17.2 and 9.7 % greater than their counterparts in the plantation. The contributions of winter soil respiration to annual soil efflux were 15.4 % for the plantation and 16.5 %for the natural forest and were statistically similar. Our results indicate that winter soil CO_2 efflux from frozen soils in the alpine coniferous forest ecosystems of the eastern Tibetan Plateau was considerable and was an important component of annual soil respiration. Moreover, reforestation(natural coniferous forests were deforested and reforested with P. asperata plantation) may reduce soil respiration by reducing soil carbon substrate availability and input. | Zhenfeng Xu Feifei Zhou Huajun Yin Qing Liu | 2015 | Journal of Forestry Research2015，26，3： | 2 |
| 3 | Catalytic aerobic oxidation of renewable furfural with phosphomolybdic acid catalyst: an alternative route to maleic acid 显示文摘 | GUO Huajun YIN Guochuan | 2011 | Physical Chemis- try2011，115，17： | 1 |
| 4 | Root-in- duced changes in nutrient cycling in forests depend on exudation rates 显示文摘 | YIN Huajun WHEELER EMILY PHILLIPS RICHARD P | 2014 | Soil Biology and Biochemistry2014，78，2014： | 1 |
| 5 | Enhanced root exudation stimulates soil nitrogen transformations in a subalpine coniferous for- est underexperimental warming显示文摘 | YIN Huajun LI Yufei XIAO Juan | 2013 | Global Change Biology2013，19，7： | 1 |
| 6 | The effect of carbon sources on nitrogen removal performance in bioelectrochemical systems显示文摘 | Huajun Feng Baocheng Huang Yuqin Zou Na Li Meizhen Wang Ju Yin Yanqing Cong Dongsheng Shen | 2013 | Bioresource Technology2013，，： | 1 |
| 7 | Economics analysis of food waste treatment in China and its influencing factors显示文摘This study examines the economic benefits of food waste treatment projects in China and factors affecting them.National-level pilot projects for food waste treatment located in 29 cities were selected as samples.The economics of food waste recycling from the investors’perspective,in terms of investment during the construction phase and cost and benefit during the operation phase,was assessed.Results indicate that the average tonnage investment of food waste treatment projects was RMB 700.0±188.9 thousand yuan,with a profit to cost ratio of 0.08±0.37.This ratio increased to 0.95±0.57 following the application of government subsidies.It highlights the limited economic benefits of food waste treatment facilities,which rely on government subsidies to maintain their operations in China.Further analysis using a multi-factor analysis model revealed that regional location,service population size,processing technique,and urban income exerted varying impacts on the economy of food waste treatment.Population size exerted the highest impact(P=0.016)during the construction stage,and processing techniques notably influenced the project economy during the operation stage.The study highlights the need to prioritize service population size and processing techniques during economic decision-making and management of food waste recycling projects.The results of this study can serve as a valuable practical reference for guiding future policies regarding food waste treatment and related planning. | Ting Chen Yingying Zhao Xiaopeng Qiu Xiaoyan Zhu Xiaojie Liu Jun Yin Dongsheng Shen Huajun Feng | 2021 | Frontiers of Environmental Science & Engineering2021，15，2： | 0 |
| 8 | Prototype of Multi-Identifier System Based on Voting Consensus显示文摘With the rapid development of the Internet,the expansion of identifiers and data brings a huge challenge to the network system.However,the network resources such as Domain Name System(DNS)are monopolized by a single agency which brings a potential threat to cyberspace.The existing network architecture cannot fundamentally solve the problems of resource monopoly and low performance.Based on the blockchain,this paper designs and implements a new Multi-Identifier System(MIS),providing the analysis and management for different identifiers in the multi-identifier network.Our preliminary emulation results prove the correctness and efficiency of the algorithm.Besides,the prototype system of MIS has been tested on the real operators’network,realizing the function of co-governing,security supervision and data protection. | XING Kaixuan LI Hui YIN Feng MA Huajun HOU Hanxu XU Huanle Yunghsiang S.HAN LIU Ji SUN Tao | 2020 | ZTE Communications2020，18，1： | 0 |
| 9 | The Impact of Commercial Insurance on Household Financial Vulnerability显示文摘This research examines the effects of commercial insurance on household financial vulnerability using data from the China Household Finance Survey(CHFS). Data were collected from 39875households in 29 provinces of China. The probit model was used to test the relationship between the study variables. The results show that commercial insurance participation reduces the likelihood of a household’s financial vulnerability. Heterogeneity analysis found that commercial insurance participation had a more significant dampening effect on the financial vulnerability of households with low personal expenses, low-income, low human capital, rural areas, and the central and western regions, indicating that commercial insurance has a universal effect. This study offers several policy implications for combating household financial vulnerability. First, improving the commercial insurance protection system in both urban and rural areas could improve households’ risk management capacity. Second,establishing tax-rewarding policies to encourage households to participate in commercial insurance.Third, increasing the popularity of commercial insurance, particularly in rural areas, and exploring the rural commercial insurance market. | Xin LI Zhichao YIN Taixing LIU Huajun WEN | 2022 | Journal of Systems Science and Information2022，10，6： | 0 |
| 10 | How do nitrogen-limited alpine coniferous forests acquire nitrogen?A rhizosphere perspective显示文摘Background:Alpine coniferous forest ecosystems dominated by ectomycorrhizal(ECM)tree species are generally characterized by low soil nitrogen(N)availability but stabilized plant productivity.Thus,elucidating potential mechanisms by which plants maintain efficient N acquisition is crucial for formulating optimized management practices in these ecosystems.Methods:We summarize empirical studies conducted at a long-term field monitoring station in the alpine coniferous forests on the eastern Tibetan Plateau,China.We propose a root-soil interaction-based framework encompassing key components including soil N supply,microbial N transformation,and root N uptake in the rhizosphere.Results:We highlight that,(i)a considerable size of soil dissolved organic N pool mitigates plant dependence on inorganic N supply;(ii)ectomycorrhizal roots regulate soil N transformations through both rhizosphere and hyphosphere effects,providing a driving force for scavenging soil N;(iii)a complementary pattern of plant uptake of different soil N forms via root-and mycorrhizal mycelium-pathways enables efficient N acquisitions in response to changing soil N availability.Conclusions:Multiple rhizosphere processes abovementioned collaboratively contribute to efficient plant N acquisition in alpine coniferous forests.Finally,we identify several research outlooks and directions to improve the understanding and prediction of ecosystem functions in alpine coniferous forests under on-going global changes. | Huajun Yin Bartosz Adamczyk Qitong Wang Biao Zhu Wanji Guo Xiaomin Zhu Qing Liu Ziliang Zhang | 2022 | Forest Ecosystems2022，9，6： | 0 |
| 11 | Graphitic nanorings for super-long lifespan lithium-ion capacitors显示文摘Porous graphitic carbon nanorings(PGCNs)are proposed by smart catalytic graphitization of nano-sized graphene quantum dots(GQDs).The as-prepared PGCNs show unique ring-like morphology with diameter around 10 nm,and demonstrate extraordinary mesoporous structure,controllable graphitization degree and highly defective nature.The mechanism from GQDs to PGCNs is proven to be a dissolution-precipitation process,undergoing the procedure of amorphous carbon,intermediate phase,graphitic carbon nanorings and graphitic carbon nanosheets.Further,the relationship between particles size of GQDs precursor and graphitization degree of PGCNs products is revealed.The unique microstructure implies PGCNs a broad prospect for energy storage application.When applied as negative electrode materials in dual-carbon lithium-ion capacitors,high energy density(77.6 Wh·kg^(−1))and super long lifespan(89.5%retention after 40,000 cycles at 5.0 A·g^(−1))are obtained.The energy density still maintains at 24.5 Wh·kg^(−1)even at the power density of 14.1 kW·kg^(−1),demonstrating excellent rate capability.The distinct microstructure of PGCNs together with the strategy for catalytic conversion from nanocarbon precursors to carbon nanorings opens a new window for carbon materials in electrochemical energy storage. | Guangchao Li Zhoulan Yin Yuqing Dai Bianzheng You Huajun Guo Zhixing Wang Guochun Yan Yong Liu Jiexi Wang | 2020 | Nano Research2020，13，11： | 0 |
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