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| 1 | Changes in SOC and Nutrients under Intensive Tillage in Two Types of Slope Landscapes显示文摘The net effect of tillage erosion on soil properties would be associated with the spatial variation in soil constituents,and therefore plays an important role in ecological agriculture.We conducted a consecutive tillage by hoeing 15 times during a period with no rainfall in the two slope landscapes(a linear slope and complex slope) of the Yangtze Three Gorges reservoir areas,to examine the relationship between soil erosion rates and the variations in soil chemical properties and compare the effects of soil redistribution on SOC and nutrients between the linear and complex slopes.After the simulated tillage,notable changes in 137 Cs inventories of the soil occurred in the summit and toeslope positions on the linear slope,while there were significant changes in 137 Cs inventories at convex and concave positions on the complex slope.Soil profile disappeared at the summit slope boundary,with the exposure area of 16.0% and 7.6% of the experimental plot,respectively,for the linear and complex slopes due to no soil replacement.Soil organic C and nutrients were completely depleted with the disappearance of soil profiles at soil eroding zones,whereas a remarkable increase in SOC,total N and available nutrient concentrations of the post-tillage surface soil and a decrease in total nutrient concentrations(P and K) were found at depositional zones on the linear slope.For the complex slope,however,changes in SOC and nutrient concentrations of the post-tillage surface soil exhibited a patterndifferent from that on the linear slope,which showed a remarkable decrease in SOC and total nutrient concentrations but a slight increase in available nutrient concentrations after tillage in the toeslope position.Due to the gradual increase in soil depth from top to bottom of the slope,SOC and nutrient inventories in the soil profiles were significantly correlated with soil redistribution rates on both the linear and complex slopes.Tillage causes remarkable changes of soil chemical properties in the surface soil layer and soil profile,and increases SOC and nutrient inventories for the soil profile downslope in steeply sloping landscapes. | LI Fucheng ZHANG Jianhui SU Zhengan | 2012 | Journal of Mountain Science2012，9，1： | 11 |
| 2 | Secure multi-party computation protocol for sequencing problem显示文摘In the field of multi-party computation,an important problem is how to construct an efficient and secure multi-party computation protocol for certain specific problems.In the present study,we make use of a secret sharing scheme to construct an efficient and secure multi-party computation protocol for sequencing problems.Our protocols are perfectly secure against both a passive adversary that can corrupt at most t (n-1)/2 participants, and an active adversary that can corrupt at most t < n/3 participants.The simplest sequencing problem is the Millionaires' problem. | TANG ChunMing SHI GuiHua YAO ZhengAn | 2011 | Science China(Information Sciences)2011，54，8： | 8 |
| 3 | Assessment of Soil Erosion by Compensatory Hoeing Tillage in a Purple Soil显示文摘This study explores the role of a traditional tillage method,i.e.,compensatory hoeing,for sustainable agro-ecosystem management in the hilly areas of the Chongqing municipality,south-western China.To validate the effects of compensatory tillage on the terraced slopes,the tillage method of noncompensatory hoeing was conducted on a linear slope.To acquire information about 137 Cs inventories and soil texture,soil samples were collected by a core sampler with a 6.8-cm diameter at 5.0-m intervals along the toposequence and the linear slope in the dry season(March) of 2007.Meanwhile,a tillage erosion model was used for evaluating the spatial pattern of tillage erosion.The 137 Cs data showed that on the terraced slope,soil was lost from the upper slope,and soil deposition occurred at the toe slope positions on each terrace.As a result,abrupt changes in the 137 Cs inventories of soil were found over short distances between two sides of terrace boundaries.Results obtained from the tillage erosion model and the 137 Cs data indicate that soil redistribution mainly results from tillage erosion in the terraced landscape.Consecutive non-compensatory tillage caused soil redistribution on the linear slope,resulting in thin soil profile disappearing at the top and soil accumulating at the bottom positions of the linear slope.This result further validates that compensatory tillage could avoid the complete erosion of the thin soil layer at the summit position.Therefore,this traditional tillage.method,i.e.,compensatory tillage,has maintained the soil quality at the summit of the slope in the past decades. | SU Zhengan ZHANG Jianhui XIONG Donghong LIU Gangcai | 2012 | Journal of Mountain Science2012，9，1： | 8 |
| 4 | Analyses of spring mean circulations for major andminor dust storm years in China-Mongolia area显示文摘To better understand the dust storm (hereafter DS) inducing circulation in the China-Mongolia (CM) DS activity area,the spring mean circulation features and differences on lower levels in three subregions of the CM DS area for the majorandminor-DS years have,as a whole (not partly),been analyzed,utilizing the National Centers for Environmental Prediction and the National Center for Atmospheric Research (NCEP/NCAR) reanalyzed gridded data,the observed DS frequency data in the CM area,and the composite analysis method.The main conclusions are as follows:(1) Judging from the differences in the DS-inducing systems,dust origins,paths of invading cold air,and main DS-strike areas,the whole CM DS area is roughly divided into the three subre-gions:the East-,Middleand West-CM subregions (in this paper,referred to as E-,M-,and W-CM).(2) In major DSs during spring over the E-CM,the middleand lower-level troughs or cyclones over the Japan Sea and northeastern China (NEC) domi-nate.The invading cold air along the northeastern (NE) or north by east (NE) path often causes the DS in the E-CM region.But nearly the opposite is true inminor DS during spring in E-CM.(3) In the major DS during spring over the M-CM region,the Mongolian troughs or cyclones are the main DS-inducing systems.The strong invading cold air along the northwestern (NW)or north by west (Nw) path causes the DSs in the M-CM region.(4) In the major DSs during spring over the W-CM region,the South Xinjiang heat lows prevail,the intruding cold air has a western path,and creates the DSs in South Xinjiang.(5) In the past 50 years,the DSs over the M-CM region have had the most severe impact on the preceding three subregions of the CM DS area.Overall,DS activities over all of three regions of the CM area decreased in the past (particularly,over Mand W-CM regions since the mid-1980s.But there existed a short and sudden increasing in E-CM in the years 2000-2002.(6) It is circulation changes and desertification evolutions that cause the yearly and decadal changes of DS in CM area,especially the former.With the backdrop of global warming in the future,perhaps the decreased DS activities over Mand W-CM will persist for some time again,and special attention should be paid to ones over E-CM or to the individual DS events over Mand W-CM. | MinHong Song 1,ZhengAn Qian 1,Ying Cai 1,ChungMing Liu 2 1.Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China.2.Department of Atmospheric Sciences,Taiwan University,Taipei 106,China. | 2009 | Research in Cold and Arid Regions2009，1，4： | 3 |
| 5 | Subtyping of type A influenza by sequencing the variable regions of HA gene specifically amplified with RT-PCR显示文摘The outbreak of a novel influenza A(H1N1) virus across the globe poses a threat to human health.It is of paramount importance to develop a rapid,reliable and inexpensive diagnostic procedure.Based on the bioinformatic information from public database,primers specific for influenza A virus surface protein haemagglutinin(HA) of several subtypes(including H1,H2,H3,H5,H7 and H9) were designed.Primer-specific PCR products were subjected to sequencing for accurately distinguishing H1 and H3 subtypes from others.This sequencing-based detection method will not only be applied to rapid detection and simultaneous subtype identification of new influenza A virus H1N1,but also provide the strategies to monitor other new types ofinfluenza virus with explosive potential. | YAN An DING GuoHui ZHOU ZhenFeng DONG Hui ZHANG YaKun ZHU Lei HE YunGang ZHANG GuoQing LI YiXue SUN Bing HUANG Zhong LAN Ke JIN Li WANG HongYan WANG XiaoNing YANG Zhong ZHONG Yang DAI JianXin GUO YaJun WANG Hao CHE XiaoYan WU Fan YUAN ZhenGan ZHANG Xi CAO ZhiWei ZHOU XiaoNong ZHOU JiaHai MA ZhiYong TONG GuangZhi ZHAO GuoPing JIN WeiRong XIONG Hui | 2009 | Chinese Science Bulletin2009，54，13： | 3 |
| 6 | Moxa Wool in Different Purities and Different Growing Years Measured by Terahertz Spectroscopy显示文摘Moxa wool is a traditional Chinese herbal medicine,which can warm channels to dispel coldness.At present,there is no unified index to evaluate the purity and growing years of moxa wool in the market.Terpineol is one of the effective substances in the volatile oil of moxa wool.Here,we characterize the purity and growing years of moxa wool by studying terpineol.Gas chromatography-mass spectrometry(GC-MS)and high-performance liquid chromatography(HPLC)are the methods for monitoring terpineol at present,all of which have defects of complicated procedures. | Yongni Shao Di Zhu Yutian Wang Zhi Zhu Wenchao Tang Zhengan Tian Yan Peng Yiming Zhu | 2022 | Plant Phenomics2022，4，1： | 1 |
| 7 | Preparation of amphiphilic hyperbranched polyesteramides by grafting mono methoxy polyethylene glycol onto hyperbranched polyesteramides via 2,4-tolylene diisocyanate显示文摘 | Kuanjun Fang Zhengan Xu Xue Jiang | 2008 | Polymer Bulletin2008，6369，： | 1 |
| 8 | Simulated headward erosion of bank gullies in the Dry-hot Valley Region of southwest China显示文摘 | Zhengan Su Donghong Xiong Yifan Dong Jiajia Li Dan Yang Jianhui Zhang Guangxiong He | 2014 | Geomorphology2014，，： | 1 |
| 9 | An investiga- tion of soil translocation and erosion by conservation hoe- ing tillage on steep lands using a magnetic tracer显示文摘 | Zhang Jianhui Su Zhengan Nie Xiaojun | 2009 | Soil & Tillage Research2009，105，2： | 1 |
| 10 | Simula- tion and 137 Cs tracer show tillage erosion translocating SOC, P and K 显示文摘 | Li Fucheng Zhang Jianhui Su Zhengan | 2013 | Journal of Plant Nutrition and Soil Science2013，176，5： | 1 |
| 11 | The relation between the Tibet winter snow and the Asian summer monsoon and rainfall an observational investigation 显示文摘 | Wu Tongwen Qian Zhengan | 2003 | Journal of Climate2003，16，12： | 1 |
| 12 | Entropy solutions for a fourth-order nonlinear degenerate problem for noise removal显示文摘 | Qiang Liu Zhengan Yao and Yuanyuan Ke | 2006 | Nonlinear Analysis In Press Corrected Proof Available online 18 October 20062006，51，10： | 1 |
| 13 | The relation between the Tibetan winter snow and the Asian summer monsoon and rainfall:An observational investigation 显示文摘 | Wu Tongwen Qian Zhengan | 2003 | Journal of Climate2003，16，12： | 1 |
| 14 | Critical topographic threshold of gully erosion in Yuanmou dry-hot valley in southwestern China显示文摘 | DONG Yifan XIONG Donghong SU Zhengan | 2013 | Physical Geography2013，34，1： | 1 |
| 15 | Simulated headward erosion of bank gullies in the dry-hot valley region of southwest China显示文摘 | SU Zhengan XIONG Donghong DONG Yifan | 2014 | Geomorphology2014，204，： | 1 |
| 16 | Critical topographic threshold of gully erosion in Yuanmou Dry-hot Valley in Southwestern China显示文摘 | Dong Yifan Xiong Donghong Su Zhengan | 2013 | Physical Geography2013，34，1： | 1 |
| 17 | The distribution of and factors influencing the vegetation in a gully in the Dry-hot Valley of southwest China显示文摘 | Dong Yifan Xiong Donghong Su Zhengan | 2014 | Catena2014，114，： | 1 |
| 18 | Compressible Navier-Stokes equations with density-dependent viscosity and vacuum 显示文摘 | Yang Tong Yao Zhengan Zhu Changjiang | 2001 | Comm Partial Differential Equtions2001，26，56： | 1 |
| 19 | Existence, uniqueness and asymptotic behavior of solutions for a singular parabolic equation 显示文摘 | XIA Li YAO Zhengan | 2009 | Journal of Mathematical Analysis and Applications2009，358，： | 1 |
| 20 | One dimensional compressible Navier-Stokes equations with density-dependent viscosity and free boundaries显示文摘 | Qin Xulong Yao Zhengan Zhao Hongxing | 2008 | Commun Pure Appl Anal2008，7，2： | 1 |
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