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| 1 | Comparison of potential potassium leaching associated with organic and inorganic potassium sources in different arable soils in China显示文摘Potassium (K) leaching is detrimental to the maintenance of sustainable arable soil K fertility,especially in low-K fixation soils.It is not known whether the application of inorganic fertilizers with lower K mobility or crop straw can reduce potential K leaching in low-K fixation arable soils.The potential K leaching of 14 representative arable soils with different K fixation capacities in China was evaluated with or without the addition of K under two rainfall intensities (90 and 225 mm),and then potential K leaching was assessed in relation to five K sources (KCl,K_(2)SO_(4),KH_(2)PO_(4),maize (Zea mays L.) straw,and rice (Oryza sativa L.) straw).Without K addition,K leaching mainly occurred in sandy soils at 90 mm of rainfall and in soils with greater organic matter at225 mm of rainfall.With K addition,the leaching percentage of exogenous K ranged from 0.6%to 11.6%at 90 mm of rainfall and 1.2%to 21.2%at 225 mm of rainfall.The greatest K leaching occurred in soils with fewer K-bearing minerals and lower pH at both rainfall intensities.In most cases,KH_(2)PO_(4),which has lower K mobility,markedly reduced K leaching in both high-and low-K leaching soils at the two rainfall intensities.Maize and rice straw reduced K leaching only in soils with high K leaching,regardless of rainfall amount,whereas more K was leached in soils with lower K leaching at high rainfall intensity.In conclusion,KH_(2)PO_(4) and straw should be preferred for reducing K leaching in low-K fixation arable soils. | Dianjun LU Yanhong DONG Xiaoqin CHEN Huoyan WANG Jianmin ZHOU | 2022 | Pedosphere2022，32，2： | 3 |
| 2 | Effect of rain enrichment on soil respiration of Nitraria sphaerocarpa community in a hyperarid area显示文摘In order to analyze the effect of rain enrichment on soil respiration rate of a Nitraria sphaerocarpa community,we measured soil respiration rate in bare and vegetated areas in a hyperarid area(Dunhuang)during the growing season.Results show that rain enrichment can increase bare and vegetated soil respiration rates.The more rainfall enrichment,the greater the increment and the longer duration time effect for soil respiration rate.200%(16 mm)and 300%(24 mm)of rain enrichment can significantly increase bare soil respiration rates by 90%and 106%(P<0.01),respectively.By contrast,areas with 100%(8 mm),200%(16 mm)and 300%(24 mm)of rain enrichment can significantly increase shrub area respiration rates by 68%,157%and 205%(P<0.01),respectively.The response time of bare and vegetated soil respiration to rainfall enrichment is asynchronous.Response variable of soil respiration in vegetated soil is higher(118%)than in bare soil.There was significant positive correlation between soil respiration rate and soil water content during the growing season(P<0.01).For every 1 mm increment of precipitation,soil respiration rate increased by 0.01 and 0.04μmol/(m2·s),respectively in vegetated and bare soils. | DianJun Liu Bo Wu YongHua Li GuangHui Lin ShiPing Chen YaJuan Zhu Qi Lu Bin Yao | 2013 | Research in Cold and Arid Regions2013，5，6： | 1 |
| 3 | CREPT Accelerates Tumorigenesis by Regulating the Transcription of Cell-Cycle-Related Genes显示文摘 | Dongdong Lu Yinyuan Wu Yinyin Wang Fangli Ren Dianjun Wang Fuqin Su Yanquan Zhang Xi Yang Guihua Jin Xinbao Hao Dacheng He Yonggong Zhai David M. Irwin Jim Hu Joseph J.Y. Sung Jun Yu Baoqing Jia Zhijie Chang | 2012 | Cancer Cell2012，，1： | 1 |
| 4 | A Study on the Model of Teachers’ Instructional Intervention in Trilingual Teaching Based on the Law of Mother Tongue Acquisition显示文摘The research on Trilingual Teaching Model in ethnic areas has become a hot spot.By analyzing the data of the questionnaire,this paper discusses the teachers’instructional intervention model,based on the law of mother tongue acquisition.Trilingual teachers should highlight the role of reading in vocabulary learning and even in improving reading ability.The law of mother tongue acquisition can be one of the main strategies to solve the problems in Tibetan students’English learning. | JI Lanfen LU Dianjun | 2022 | Psychology Research2022，12，7： | 0 |
| 5 | An Improved Ciphertext Retrieval Scheme Based on Fully Homomorphic Encryption显示文摘In order to guarantee the user's privacy and the integrity of data when retrieving ciphertext in an untrusted cloud environment, an improved ciphertext retrieval scheme was proposed based on full homomorphic encryption. This scheme can encrypt two bits one time and improve the efficiency of retrieval. Moreover, it has small key space and reduces the storage space. Meanwhile, the homomorphic property of this scheme was proved in detail. The experimental results and comparisons show that the proposed scheme is characterized by increased security, high efficiency and low cost. | LI Xinyan MOU Huajian LU Dianjun | 2019 | Wuhan University Journal of Natural Sciences2019，24，3： | 0 |
| 6 | Variation in Leaf Shapes of Nitraria Species and Effect on Leaf δ^(13)C显示文摘Leaf shapes are not only the useful indicators in plant taxonomy,but also the important factors affecting energy and material exchange in leaves.In this paper,we collected and scanned the leaves of Nitraria tangutorum in Dengkou of Inner Mongolia Autonomous Region(the mean annual precipitation 145 mm) and Minqin of Gansu Province (the mean annual precipitation 115 mm) and N. sphaerocarpa in Dunhuang,and then analyzed leaf shape parameters with Image - Pro Plus6.0 image processing software and leafδ13C values in the isotope laboratory of the Chinese Academy of Forestry.The result showed that:1) as leaf area increased with increasing water availability the increases in the leaf length and width were asynchronously;2) with the same leaf width,the 1 eaves of N.tangutorum and N.sphaerocarpa were significantly longer in high water available conditions;and 3) although there were significantly differences in water availability between Dengkou and Minqin,as well as between the bottom and middle of the alluvial fan near the East Lake in Dunhuang,the leafδ13C values of N.tangutorum or N.sphaerocarpa were similar in different water conditions(P>0.05).Our results suggested that the ratio of leaf perimeter to area would be an important factor which linked leaf shape to plant water physiology.During growing procedure of leaf area,leaf length increase was prior to its width to alleviate the reduction in ratio of perimeter to area and maintain water use efficiency of the plant. | Li Yonghua Wu Bo Lu Qi Jin Zhanhu Liu Dianjun Zhang Jinxin | 2012 | Chinese Forestry Science and Technology2012，11，3： | 0 |
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