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| 1 | Litter decomposition and C and N dynamics as affected by N additions in a semi-arid temperate steppe, Inner Mongolia of China显示文摘Litter decomposition is the fundamental process in nutrient cycling and soil carbon(C) sequestration in terrestrial ecosystems. The global-wide increase in nitrogen(N) inputs is expected to alter litter decomposition and,ultimately, affect ecosystem C storage and nutrient status. Temperate grassland ecosystems in China are usually N-deficient and particularly sensitive to the changes in exogenous N additions. In this paper, we conducted a 1,200-day in situ experiment in a typical semi-arid temperate steppe in Inner Mongolia to investigate the litter decomposition as well as the dynamics of litter C and N concentrations under three N addition levels(low N with 50 kg N/(hm2?a)(LN), medium N with 100 kg N/(hm2?a)(MN), and high N with 200 kg N/(hm2?a)(HN)) and three N addition forms(ammonium-N-based with 100 kg N/(hm2?a) as ammonium sulfate(AS), nitrate-N-based with 100 kg N/(hm2?a) as sodium nitrate(SN), and mixed-N-based with 100 kg N/(hm2?a) as calcium ammonium nitrate(CAN)) compared to control with no N addition(CK). The results indicated that the litter mass remaining in all N treatments exhibited a similar decomposition pattern: fast decomposition within the initial 120 days, followed by a relatively slow decomposition in the remaining observation period(120–1,200 days). The decomposition pattern in each treatment was fitted well in two split-phase models, namely, a single exponential decay model in phase I(<398 days) and a linear decay function in phase II(≥398 days). The three N addition levels exerted insignificant effects on litter decomposition in the early stages(<398 days, phase I; P>0.05). However, MN and HN treatments inhibited litter mass loss after 398 and 746 days, respectively(P<0.05). AS and SN treatments exerted similar effects on litter mass remaining during the entire decomposition period(P>0.05). The effects of these two N addition forms differed greatly from those of CAN after 746 and 1,053 days, respectively(P<0.05). During the decomposition period, N concentrations in the decomposing litter increased whereas C concentrations decreased, which also led to an exponential decrease in litter C:N ratios in all treatments. No significant effects were induced by N addition levels and forms on litter C and N concentrations(P>0.05). Our results indicated that exogenous N additions could exhibit neutral or inhibitory effects on litter decomposition, and the inhibitory effects of N additions on litter decomposition in the final decay stages are not caused by the changes in the chemical qualities of the litter, such as endogenous N and C concentrations. These results will provide an important data basis for the simulation and prediction of C cycle processes in future N-deposition scenarios. | Qin PENG YuChun QI YunShe DONG YaTing HE ShengSheng XIAO XinChao LIU LiangJie SUN JunQiang JIA ShuFang GUO CongCong CAO | 2014 | Journal of Arid Land2014，6，4： | 16 |
| 2 | Effects of a conversion from grassland to cropland on the different soil organic carbon fractions in Inner Mongolia, China显示文摘耕作是除放牧以外影响草地生态系统的最重要的人的活动之一,但是它土壤上的影响总计器官的碳(C) ,特别在有倾向的器官的 C 部分上还充分没被理解。在这份报纸,在土壤收割不同部分的器官的 C 水池的角色在中国,和在不同 C 部分之间的关系的内部蒙古在一个草地大草原区域被调查也被讨论。结果显示在大草原和栽培土地的不同 C 部分的集中都与土壤深度日益增多地减少了。在到为 36 年的春天小麦地的从大草原的变换以后,在 0~100 厘米土壤深度的全部的器官的碳( TOC )集中在12.3%~28.2%减少了,并且表面土壤地平线的 TOC ,特别那些更显著地 030 厘米减少了( p < 0.01 )。溶解的器官的碳(文档) 和在 040 厘米的深度的微生物引起的生物资源碳(MBC ) 被发现分别地在 66.7% ~ 77.1% 和 36.5% ~ 42.4% 减少了。在 S。baicalensis 大草原,春天小麦地里的到 TOC 的文档在 0.52% 和 0.60% 之间改变了的土壤的比率,和那些仅仅在 0.18%0.20% 的范围。在春天小麦的微生物引起的商(qMBs ) 回答,从 1.11% ~ 1.40% 变化,也是比在 S 的那些低的。baicalensis 大草原,它在 1.50%1.63% 的范围。文档的变化对耕作骚乱更敏感。土壤 TOC,文档,和 MBC 是显著地积极的在 S 与对方一起相关。baicalensis 大草原,但是在春天小麦地里,在文档之间的相互关系和在文档和 MBC 之间的 TOC 和那没到达 0.05 的意义水平。 | QI Yuchun DONG Yunshe PENG Qin XIAO Shengsheng HE Yating LIU Xinchao SUN Liangjie JIA Junqiang YANG Zhijie | 2012 | Journal of Geographical Sciences2012，22，2： | 13 |
| 3 | Spatial-temporal variation in soil respiration and its controlling factors in three steppes of Stipa L. in Inner Mongolia, China显示文摘Grassland is the largest terrestrial ecosystem in China. It is of great significance to measure accurately the soil respiration of different grassland types for the contribution evaluation of the Chinese terrestrial ecosystem’s carbon emission to the atmospheric CO2 concentration. A three-year (2005-2007) field experiment was carried out on three steppes of Stipa L. in the Xilin River Basin, Inner Mongolia, China, using a static opaque chamber technique. The seasonal and interannual variations of soil respiration rates were analyzed, and the annual total soil respiration of the three steppes was estimated. The numerical models between soil respiration and water-heat factors were established respectively. Similar seasonal dynamic and high annual and interannual variations of soil respiration were found in all of the three steppes. In the growing season, the fluctuation of soil respiration was particularly evident. The coefficients of variation (CVs) for soil respiration in different growing seasons ranged from 54% to 93%, and the annual CVs were all above 115%. The interannual CV of soil respiration progressively decreased in the order of Stipa grandis (S. grandis) steppe > Stipa baicalensis (S. baicalensis) steppe > Stipa krylovii (S. krylovii) steppe. The annual total soil respiration for the S. baicalensis steppe was 223.62?299.24 gC m-2 a-1, 150.62-226.99 gC m-2 a-1 for the S. grandis steppe, and 111.31–131.55 gC m-2 a-1 for the S. krylovii steppe, which were consistent with the precipitation gradient. The variation in the best fitting temperature factor explained the 63.5%, 73.0%, and 73.2% change in soil respiration in the three steppes at an annual time scale, and the corresponding Q10 values were 2.16, 2.98, and 2.40, respectively. Moreover, the Q10 values that were calculated by soil temperature at different depths all expressed a 10 cm > 5 cm > surface in the three sampling sites. In the growing season, the soil respiration rates were related mostly to the surface soil moisture, and the 95.2%, 97.4%, and 93.2% variations in soil respiration in the three steppes were explained by the change in soil moisture at a depth of 0-10 cm, respectively. | QI YuChun DONG YunShe LIU LiXin LIU XingRen PENG Qin XIAO ShengSheng HE YaTing | 2010 | Science China Earth Sciences2010，53，5： | 12 |
| 4 | An Efficient Method for Calculating Qualitative Spatial Relations显示文摘 | WANG Shengsheng LIU Dayou | 2009 | Chinese Journal of Electronics2009，18，1： | 7 |
| 5 | Influence of a graphite shell on the thermal, magnetic and electromagnetic characteristics of Fe nanoparticles显示文摘 | Xianguo Liu Siu Wing Or Yuping Sun Weihuo Li Yizhu He Guohui Zhu Chuangui Jin Qun Yan Yaohui Lv Siu Lau Ho Shengsheng Zhao | 2013 | Journal of Alloys and Compounds2013，，： | 1 |
| 6 | Copper-mediated controlled copolymerization of methyl acrylate with 1-alkenes under mild conditions显示文摘 | Liu Shengsheng Elyashiv S Sen A | 2001 | J Am Chem Soc2001，123，12： | 1 |
| 7 | Nitroxide mediated copolymerization of methyl acrylate with l-alkenes and norbomenes显示文摘 | Gu Bin Liu Shengsheng Leber J D | 2004 | Polymer Preprints2004，45，2： | 1 |
| 8 | Geochemical Characteristics of Volcanic Rocks from ODP Site 794,Yamato Basin:Implications for Deep Mantle Processes of the Japan Sea显示文摘Deep mantle processes and the dynamic mechanism of magmatism in the Japan Sea Basin are important processes that have not been studied in detail. In this paper, systematic evaluation of basalt samples from the ocean drilling program Site 794 in the Japan Sea was performed, which included petrography, whole-rock major- and trace-element analysis, Sr-Nd-Pb isotopic composition, and electron microprobe analysis of plagioclase and clinopyroxene. These basalts belong to the tholeiitic series with porphyritic texture and massive Ca-rich plagioclase, clinopyroxene, and minor olivine phenocrysts. The basalts are characterized as flat rare earth elements and high-field-strength elements with remarkably low ratios of(La/Yb)N(0.75–2.51), significant positive anomalies of Ba, Sr, and Rb and no Eu anomaly(δEu = 0.99–1.36). The samples showed relatively high 87Sr/86Sr(0.70425–0.70522), 207Pb/204Pb(15.511–15.610), and 208Pb/204Pb(38.064–38.557) values and a low 143Nd/144 Nd ratio(0.51271–0.51295). The basalts from Site 794 can be divided into upper, middle, and lower volcanic rocks(UVR, MVR, and LVR) on the basis of their stratigraphic level. The MVR was geochemically derived from the depleted mantle, whereas the UVR and LVR originated from a nondepleted and relatively enriched mantle source with contributions from subducted Pacific plate fluid and sediments. Use of geothermobarometers indicates that the crystallization pressure for the UVR and LVR(6.25–11.19 kbar) was significantly higher than that of the MVR(3.48–5.84 kbar). The UVR and LVR may have been derived from the low-degree(5%–10%) partial melting of spinel lherzolite, while the MVR originated from a shallower mantle source with a high degree(10%–20%) of partial melting. In addition, the geochemical characteristics of the samples are consistent with a younger age(13–17 Ma) and the depleted composition of the MVR and an older age(17–23 Ma) and slightly enriched composition of the UVR and LVR. Therefore, temporal changes in the mantle source from old and enriched to young and depleted and subsequently to old and nondepleted may have been associated with progressive lithospheric extension and thinning, as well as at least two episodes of diverse asthenospheric upwelling and pull-apart tectonic motion in the Yamato Basin. | CHEN Shuangshuang LIU Jiaqi GUO Zhengfu CHEN Shengsheng SUN Chunqing | 2015 | Acta Geologica Sinica(English Edition)2015，89，4： | 1 |
| 9 | Mutations in the miRNA165/166 binding site of the HB2 gene result in pleiotropic effects on morphological traits in wheat显示文摘Leaf,spike,stem,and root morphologies are key factors that determine crop growth,development,and productivity.Multiple genes that control these morphological traits have been identified in Arabidopsis,rice,maize,and other plant species.However,little is known about the genomic regions and genes associated with morphological traits in wheat.Here,we identified the ethyl methanesulfonate-derived mutant wheat line M133 that displays multiple morphological changes that include upward-curled leaves,paired spikelets,dwarfism,and delayed heading.Using bulked segregant RNA sequencing(BSR-seq)and a high-resolution genetic map,we identified TraesCS1D02G155200(HBD2)as a potential candidate gene.HB-D2 encodes a class III homeodomain-leucine zipper(HD-ZIP III)transcription factor,and the mutation was located in the miRNA165/166 complementary site,resulting in a resistant allele designated rHb-D2.The relative expression of rHb2 in the mutant plants was significantly higher(P<0.01)than in plants homozygous for the WT allele.Independent resistant mutations that disrupt the miRNA165/166 complementary sites in the A-(rHb-A2)and B-genome(rHb-B2)homoeologs showed similar phenotypic alterations,but the relative intensity of the effects was different.Transgenic plants expressing rHb-D2 gene driven by the maize UBIQUITIN(UBI)promoter showed similar phenotypes to the rHb-D2 mutant.These results confirmed that HB-D2 is the causal gene responsible for the mutant phenotypes.Finally,a survey of 1397 wheat accessions showed that the complementary sites for miRNA165/166 in all three HB2 homoeologs are highly conserved.Our results suggest that HB2 plays an important role in regulating growth and development in wheat. | Dengji Jiang Lei Hua Chaozhong Zhang Hongna Li Zheng Wang Jian Li Guiping Wang Rui Song Tao Shen Hongyu Li Shengsheng Bai Yanna Liu Jian Wang Hao Li Jorge Dubcovsky Shisheng Chen | 2023 | The Crop Journal2023，11，1： | 1 |
| 10 | Spatial reasoning based spatial data mining for precision agriculture显示文摘 | Wang Shengsheng Liu Dayou Wang Xinying | 2006 | LNCS2006，3842，： | 1 |
| 11 | Nitroxide mediated copolymerization of methyl acrylate with 1-alkenes and norbomenes显示文摘 | Gu Bin Liu Shengsheng Leber J D | 2004 | Polymer Preprints2004，45，2： | 1 |
| 12 | Nitroxide-mediated copolymerization of methyl acrylate with 1-alkenes and norbornenes显示文摘 | GU BIN LIU SHENGSHENG LEBER J D | 2004 | Macromolecules2004，37，14： | 1 |
| 13 | Controlled random and alternating copolymerization of methyl acrylate with 1-alkenes显示文摘 | LIU Shengsheng GU Bin ROWLANDS H A | 2004 | Macromolecules2004，37，21： | 1 |
| 14 | Synthesis of palladium complexes with an anionic P-O chelate and their use in copolymerization of ethene with functionalized norbornene derivatives: Unusual functionality tolerance显示文摘 | Liu Shengsheng Borkar S Sen A | 2007 | Organometallics2007，26，1： | 1 |
| 15 | Embryonic NOTES thoracic sympathectomy for palmar hyperhidrosis: results of a novel technique and comparison with the conventional VATS procedure显示文摘 | Li-Huan Zhu Long Chen Shengsheng Yang Daoming Liu Jixue Zhang Xianjin Cheng Weisheng Chen | 2013 | Surgical Endoscopy2013，，11： | 1 |
| 16 | Representation, Reasoning and Similar Matching for Detailed Topological Relations with DTString 显示文摘 | WANG Shengsheng LIU Dong ZHANG Chen | 2014 | Information :Sciences2014，276，18： | 1 |
| 17 | Puerarin suppresses proliferation of endometriotic stromal cells in part via differential recruitment of nuclear receptor coregulators to estrogen receptor-α显示文摘 | Mei Ji Yuhuan Liu Shengsheng Yang Dongxia Zhai Danying Zhang Lingling Bai Zhenzhi Wang Jin Yu Chaoqin Yu Zailong Cai | 2013 | Journal of Steroid Biochemistry and Molecular Bio2013，，： | 1 |
| 18 | Interactive Activity Learning from Trajectories with Qualitative Spatio-Temporal Relation显示文摘Automatically analyzing interactions from video has gained much attention in recent years. Here a novel method has been proposed for analyzing interactions between two agents based on the tra jectories. Previous works related to this topic are methods based on features, since they only extract features from objects. A method based on qualitative spatio-temporal relations is adopted which utilizes knowledge of the model(qualitative spatio-temporal relation calculi) instead of the original tra jectory information. Based on the previous qualitative spatio-temporal relation works, such as Qualitative tra jectory calculus(QTC), some new calculi are now proposed for long term and complex interactions. By the experiments, the results showed that our proposed calculi are very useful for representing interactions and improved the interaction learning more effectively. | WANG Shengsheng WEN Changji LAI Yong LIU Yiting LIU Dayou | 2015 | Chinese Journal of Electronics2015，24，3： | 1 |
| 19 | Data Location Mechanism in Agent-Based Autonomic Storage Systems显示文摘This paper introduces agent-based methodology to build a distributed autonomic storage system infrastructure, and an effectively negotiation mechanism based on agent is applied for data location. We present Availability-based Data Allocation (ADA) algorithm as a data placement strategy to achieve high efficient utilization of storage resources by employing multiple distributed storage resources. We use Bloom filter in each storage device to track the location of data. We present the data lookup strategy that small size of read request is handled directly, and large size of read request is handled by cooperation with storage devices.The performance evaluation shows that the data location mechanism is high available and can work well for heterogeneous autonomic storage systems. | SU Yong ZHOU Jingli YU Shengsheng JIANG Minghua LIU Gang | 2007 | Wuhan University Journal of Natural Sciences2007，12，2： | 0 |
| 20 | A novel strategy of constructing 2D supramolecular organic framework sensor for the identification of toxic metal ions显示文摘Two novel two-dimensional(2D)supramolecular organic frameworks were fabricated in water based on the encapsulation-enhanced donor-acceptor interaction between the methyl viologen(MV)units,methoxy naphthyl(MN)units,and CB[8].The tetraphenylethylene(TPE)derivatives 1 with four MV units were employed as rigid building blocks and the two MN units modified oligoethylene glycol derivatives 2 and 3 served as flexible edges,respectively.The obtained two SOFs have obvious sheet-like structures and exhibit fluorescence emission at 350-500 nm.In addition,these two SOFs were employed for the luminescent detection of Cr(Ⅵ)and Mn(Ⅶ)in aqueous solutions,and the detection limits of CrO_(4)^(2-),Cr_(2)_(O)_(7)^(2-),and MnO_(4)were calculated in a very low concentration range,indicating that these two SOFs can serve as a potential sensor for Cr(Ⅵ)and Mn(Ⅶ)detection in water.This work constructs two SOFs in an aqueous solution through a facile method and further enriches the applications of SOFs. | Ying Wang Ning Han Chao-Qun Ma Hui Liu Shengsheng Yu Rongzhou Wang Vijay Kumar Thakur Ling-Bao Xing | 2023 | Nano Materials Science2023，5，3： | 0 |
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