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| 1 | Differential responses of short-term soil respiration dynamics to the experimental addition of nitrogen and water in the temperate semi-arid steppe of Inner Mongolia, China显示文摘We examined the effects of simulated rainfall and increasing N supply of different levels on CO2 pulse emission from typical Inner Mongolian steppe soil using the static opaque chamber technique, respectively in a dry June and a rainy August. The treatments included NH4NO3 additions at rates of 0, 5, 10, and 20 g N/(m2·year) with or without water. Immediately after the experimental simulated rainfall events, the CO2 effluxes in the watering plots without N addition(WCK) increased greatly and reached the maximum value at 2 hr. However, the efflux level reverted to the background level within 48 hr. The cumulative CO2 effluxes in the soil ranged from 5.60 to 6.49 g C/m2over 48 hr after a single water application, thus showing an increase of approximately 148.64% and 48.36% in the effluxes during both observation periods. By contrast, the addition of different N levels without water addition did not result in a significant change in soil respiration in the short term. Two-way ANOVA showed that the effects of the interaction between water and N addition were insignificant in short-term soil CO2 effluxes in the soil. The cumulative soil CO2fluxes of different treatments over 48 hr accounted for approximately 5.34% to 6.91% and 2.36% to 2.93% of annual C emission in both experimental periods. These results stress the need for improving the sampling frequency after rainfall in future studies to ensure more accurate evaluation of the grassland C emission contribution. | Yuchun Qi Xinchao Liu Yunshe Dong Qin Peng Yating He Liangjie Sun Junqiang Jia Congcong Cao | 2014 | Journal of Environmental Sciences2014，26，4： | 17 |
| 2 | 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 |
| 3 | 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 |
| 4 | Response of soil N_2O emissions to precipitation pulses under different nitrogen availabilities in a semiarid temperate steppe of Inner Mongolia, China显示文摘Short-term nitrous oxide(N2O) pulse emissions caused by precipitation account for a considerable portion of the annual N2O emissions and are greatly influenced by soil nitrogen(N) dynamics. However, in Chinese semiarid temperate steppes, the response of N2O emissions to the coupling changes of precipitation and soil N availability is not yet fully understood. In this study, we conducted two 7-day field experiments in a semiarid temperate typical steppe of Inner Mongolia, China, to investigate the N2O emission pulses resulting from artificial precipitation events(approximately equivalent to 10.0 mm rainfall) under four N addition levels(0, 5, 10 and 20 g N/(m2·a)) using the static opaque chamber technique. The results show that the simulated rainfall during the dry period in 2010 caused greater short-term emission bursts than that during the relatively rainy observation period in 2011(P<0.05). No significant increase was observed for either the N2O peak effluxes or the weekly cumulative emissions(P>0.05) with single water addition. The peak values of N2O efflux increased with the increasing N input. Only the treatments with water and medium(WN10) or high N addition(WN20) significantly increased the cumulative N2O emissions(P<0.01) in both experimental periods. Under drought condition, the variations in soil N2O effluxes were positively correlated with the soil NH4-N concentrations in the three N input treatments(WN5, WN10, and WN20). Besides, the soil moisture and temperature also greatly influenced the N2O pulse emissions, particularly the N2O pulse under the relatively rainy soil condition or in the treatments without N addition(ZN and ZWN). The responses of the plant metabolism to the varying precipitation distribution and the length of drought period prior to rainfall could greatly affect the soil N dynamics and N2O emission pulses in semiarid grasslands. | XinChao LIU YuChun QI YunShe DONG Qin PENG YaTing HE LiangJie SUN JunQiang JIA CongCong CAO | 2014 | Journal of Arid Land2014，6，4： | 3 |
| 5 | A Method for Eliminating the Impact of Microwave Sweeper Power Fluctuation in BOTDA System显示文摘在 BOTDA 系统的微波 sweeper 电源变化的影响理论上被分析了并且试验性地测试了。并且把探查波浪电源的即时获得与一个新算法作比较为消除这影响认识到探查波浪电源正规化的一个新奇方法被建议。建议方法的原则理论上被描述。并且在我们的新方法和常规方法之间的对比测试被执行。实验结果显示温度精确性有效地被改进从 ? | Shuo Jiang Jun Chang Sasa Zhang Zongliang Wang Sha Luo Boning Sun Xiaohui Liu Yongning Liu Junqiang Tian Chuanwu Jia | 2014 | Photonic Sensors2014，4，1： | 2 |
| 6 | Clinicopathological features of pseudomyogenic hemangioendothelioma and precision therapy based on whole exome sequencing显示文摘Dear Editor Pseudomyogenic hemangioendothelioma(PHE)is a newly recognized subtype of hemangioendothelioma characterized by the presence of fibrohistiocytic and myoid cells arranged in a fibroma-like or dermatofibroma-like pattern[1].This rare type of tumor was first named by Hornick and Fletcher[2]and categorized as the novel soft tissue tumor classification system of the World Health Organization in 2013[3].Prior to this,it was referred to as fibroma-like variant of epithelioid sarcoma(ES)and epithelioid sarcoma-like hemangioendothelioma[4]. | Junqiang Wei Zhichao Liao Gang Zhao Nazmun Nahar Chao Zhang Jia Lu Yun Yang Jilong Yang | 2020 | Cancer Communications2020，40，4： | 2 |
| 7 | The use of ultrasound for enzymatic preparation of ACE-inhibitory peptides from wheat germ protein显示文摘 | JIA Junqiang MA Haile ZHAO Weirui | 2010 | Food Chemistry2010，119，： | 1 |
| 8 | Enzymolysis kinetics and activities of ACE inhibitory peptides from wheat germ protein prepared with SFP ultrasound-assisted processing 显示文摘 | Wenjuan Qua Haile Ma Junqiang Jia a | 2012 | Ultrasonics Sonochemistry2012，19，5： | 1 |
| 9 | Effect of energy-gathered ultrasound on alcalase显示文摘 | Ma Haile Huang Liurong Jia Junqiang | 2011 | Ultrasonics Sono- chemistry2011，18，： | 1 |
| 10 | Enzymolysis reaction kinetics and thermodynamics of defatted wheat germ protein with ultrasonic pretreatment显示文摘 | Qu Wenjuan Ma Haile Jia Junqiang | 2013 | Ultrasonics Sonochemistry2013，20，： | 1 |
| 11 | The use of ultrasound for enzymatic preparation of ACE-inhibitory peptides from wheat germprotein显示文摘 | Jia Junqiang Ma Haile Zhao Weirui | 2010 | Food Chemistry2010，119，： | 1 |
| 12 | The use of ultrasound for enzymatic preparation of ACE-inhibitory peptides from wheat germ protein显示文摘 | Junqiang Jia Haile Ma Weirui Zhao Zhenbin Wang Wanmin Tian Lin Luo Ronghai He | 2009 | Food Chemistry2009，，1： | 1 |
| 13 | The use of ultrasound for enzymatic preparation of ACE - inhibitory peptides from wheat germ protein 显示文摘 | Junqiang Jia Haile Ma Weirui Zhao | 2010 | Food Chemistry2010，119，1： | 1 |
| 14 | The use of ultrasound for enzymatic preparation of ACE-inhibitory peptides from wheat germ protein 显示文摘 | JIA Junqiang MA Haile ZHAO Weirui | 2010 | Food Chem2010，119，1： | 1 |
| 15 | Effects of water and nitrogen addition on vegetation carbon pools in a semi-arid temperate steppe显示文摘Global change will lead to increases in regional precipitation and nitrogen(N) deposition in the semi-arid grasslands of northern China. We investigated the responses of vegetation carbon(C) pools to simulated precipitation and N deposition increases through field experiments in a typical steppe in Inner Mongolia. The treatments included NH_4NO_3 addition at concentrations of 0(CK), 5(LN, low nitrogen), 10(middle nitrogen, MN), and 20(HN,high nitrogen)(g m^(-2)a^(-1)) with and without water. After three consecutive years of treatment, from 2010 to 2012,water addition did not significantly change the size of the total vegetation C pools, but it significantly decreased the ratio of root:shoot(R:S)(P = 0.05) relative to controls. By contrast, N addition significantly increased the total vegetation C pools. The C pools in the LN, MN and HN treatments increased by 22, 39 and 44 %, respectively. MN produced the largest effect among the N concentrations,although differences between N-added treatments were not significant(P [ 0.05). N addition significantly reduced the ratio of root:shoot(R:S)(P = 0.03). However, there were no significant interactive effects of water and N addition on the vegetation C pools. | Junqiang Jia Yunshe Dong Yuchun Qi Qin Peng Xinchao Liu Liangjie Sun Shufang Guo Yunlong He Congcong Cao Zhongqing Yan | 2016 | Journal of Forestry Research2016，27，3： | 1 |
| 16 | The use of ultrasound for enzymatic preparation of ACE inhibitory peptides from wheat germ protein显示文摘 | JIA Junqiang MA Haile ZHAO Weirui | 2010 | Food Chemistry2010，119，1： | 1 |
| 17 | Effect of energy- gathered ultrasound on Alcalase 显示文摘 | Haile Ma Liurong Huang Junqiang Jia | 2011 | Ultrasonics Sonochemistry2011，18，： | 1 |
| 18 | The use of ultrasound for enzymatic preparation of ACE-inhibitory peptides from wheat germ protein显示文摘 | Junqiang Jia Haile Ma Weirui Zhao | 2010 | Food Chemistry2010，119，1： | 1 |
| 19 | The use of ultrasound for enzymatic preparation of ACE inhibitory peptides from wheat germ protein显示文摘 | JIA Junqiang MA Haile ZHAO Weirui | | 0，，01： | 1 |
| 20 | The use of ultrasound for enzymatic preparation of ACE-inhibitory peptides from wheat germ protein显示文摘 | Junqiang Jia Haile Ma Weirui Zhao | 2010 | Food Chemistry2010，，119： | 1 |
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