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Fertilization Affects Biomass Production of Suaeda salsa and Soil Organic Carbon Pool in East Coastal Region of China

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Journal of Integrative Agriculture 2013年第9期12卷 1659-1672页

作者： MENG Qing-feng Yang Jing-song YAO Rong-jiang LIU Guang-ming YU Shi-peng State Key Laboratory of Soil and Sustainable Agriculture Nanjing Institute of Soil ScienceChinese Academy of Sciences School of Resources and Environments Northeast Agriculture University Dongtai Institute of Tidal Flat Research Nanjing Branch of the Chinese Academy of Sciences

Land use practice significantly affects soil properties. Soil is a major sink for atmospheric carbon, and soil organic carbon （SOC） is considered as an essential indicator of soil quality. The objective of this study was to assess the effects of N and P applied to Suaeda salsa on biomass production, SOC concentration, labile organic carbon （LOC） concentration, SOC pool and carbon management index （CMI） as well as the effect of the land use practice on soil quality of coastal tidal lands in east coastal region of China. The study provided relevant references for coastal exploitation, tidal land management and related study in other countries and regions. The field experiment was laid out in a randomized complete block design, consisting of four N-fertilization rates （0 （NO）, 60 （N1）, 120 （N2） and 180 kg ha-1 （N3））, three P-fertilization rates （0 （P0）, 70 （P1） and 105 kg ha-~ （P2）） and bare land without vegetation. N and P applied to S. salsa on coastal tidal lands significantly affected biomass production （above-ground biomass and roots）, bulk density （Pb）, available N and P, SOC, LOC, SOC pool and CMI. Using statistical analysis, significantly interactions in N and P were observed for biomass production and the dominant factor for S. salsa production was N in continuous 2-yr experiments. There were no significant interactions between N and P for SOC concentration, LOC concentration and SOC pool. However, significant interaction was obtained for CMI at the 0-20 cm depth and N played a dominant role in the variation of CMI. There were significant improvements for soil measured attributes and parameters, which suggested that increasing the rates of N and P significantly decreased Pb at the 0-20 cm depth and increased available N and P, SOC, LOC, SOC pool as well as CMI at both the 0-20 and 20-40 cm depth, respectively. By correlation analysis, there were significantly positive correlations between biomass （above- ground biomass and roots） and SOC as well as LOC in 2010

关键词： Suaeda salsa production coastal tidal lands N and P application soil organic carbon labile organic carbon,carbon management index

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一种新的粗糙测度

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计算机工程与应用 2007年第31期43卷 68-70页

作者：哈明虎范毅君张爱泉河北大学数学与计算机学院河北保定071002

粗糙集理论是一种处理不精确、不确定与不完整数据的新型数学工具。粗糙集的度量是粗糙集理论研究的重要内容之一。提出了上粗糙测度、下粗糙测度与粗糙测度的概念,给出了它们的一些性质,为粗糙集合提供了一种新的度量方式。

关键词：粗糙集上粗糙测度下粗糙测度粗糙测度数据分析

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Response of Nitrogen Leaching to Nitrogen Deposition in Disturbed and Mature Forests of Southern China

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Pedosphere 2009年第1期19卷 111-120页

作者： Fang Yun-Ting M. YOH MO Jiang-ming P. GUNDERSEN ZHOU Guo-Yi Dinghushan Forest Ecosystem Research Station South China Botanical Garden the Chinese Academy of Sciences Zhaoqing Guangdong 520670 （China） Tokyo University of Agriculture and Technology Tokyo 183-8509 （Japan） Forest ＆ Landscape Denmark Faculty of Life Sciences University of Copenhagen Hoersholm Kongevej 112970 （Denmark）

Current nitrogen (N) leaching losses and their responses to monthly N additions were investigated under a disturbed pine (Pinus massoniana) forest and a mature monsoon broadleaf forest in southern China. N leaching losses from both disturbed and mature forests were quite high (14.6 and 29.2 kg N ha-1 year-1, respectively), accounting for 57% and 80% of their corresponding atmospheric N inputs. N leaching losses were substantially increased following the first 1.5 years of N applications in both forests. The average increases induced by the addition of 50 and 100 kg N ha-1 year-1 were 36.5 and 24.9 kg N ha-1 year-1, respectively, in the mature forest, accounting for 73.0% and 24.9% of the annual amount of N added, and 14.2 and 16.8 kg N ha-1 year-1 in the disturbed forest, accounting for 28.4% and 16.8% of the added N. Great N leaching and a fast N leaching response to N additions in the mature forest might result from long-term N accumulation and high ambient N deposition load (greater than 30 kg N ha-1 year-1 over the past 15 years), whereas in the disturbed forest, it might result from the human disturbance and high ambient N deposition load. These results suggest that both disturbed and mature forests in the study region may be sensitive to increasing N deposition.

关键词： atmospheric N deposition N addition N leaching loss N saturation subtropical forests

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The Nutrient Expert decision support system improves nutrient use efficiency and environmental performance of radish in North China

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Journal of Integrative Agriculture 2022年第5期21卷 1501-1512页

作者： ZHang Jia-jia DING Wen-cheng CUI Rong-zong LI ming-yue Sami ULLAH HE Ping Key Laboratory of Plant Nutrition and Fertilizer Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081P.R.China Institute of Plant Nutrition Resources and EnvironmentBeijing Academy of Agriculture and Forestry SciencesBeijing 100097P.R.China Institute of Agricultural Resources and Environment Shandong Academy of Agricultural SciencesJinan 250100P.R.China Tianjin Institute of Agricultural Resources and Environment Tianjin 300192P.R.China Department of Biology University of OkaraOkara 56130Pakistan

Excessive fertilization has led to nutrient use inefficiency and serious environmental consequences for radish cultivation in North *** Nutrient Expert(NE)system is a science-based,site-specific fertilization decision support system,but the updated NE system for radish has rarely been *** study aims to validate the feasibility of NE for radish fertilization management from agronomic,economic,and environmental perspectives.A total of 46 field experiments were conducted over four seasons from April 2018 to November 2019 across the major radish growing regions in North *** results indicated that NE significantly reduced N,P_(2)O_(5),and K_(2)O application rates by 98,110,and 47 kg ha^(-1) relative to those in the farmers’practice(FP),respectively,and reduced N and P_(2)O_(5) inputs by 48 and 44 kg ha^(-1),respectively,while maintaining the same K_(2)O rate as soil testing(ST).Relative to FP and ST,NE significantly increased radish yield by 2.7 and 2.6 t ha^(-1)(4.2 and 4.0%)and net returns by 837 and 432 USD ha^(-1),*** average,NE significantly improved the agronomic efficiency(AE)of N,P,and K(relative to FP and ST)by 42.4 and 31.0,67.4 kg kg^(-1) and 50.9,and 20.3 and 12.3 kg kg^(-1);enhanced the recovery efficiency(RE)of N,P,and K by 11.4 and 7.0,14.1 and 7.5,and 11.3 and 6.3 percentage points;and increased the partial factor productivity(PFP)of N,P,and K by 162.9 and 96.8,488.0 and 327.3,and 86.9 and 22.4 kg kg^(-1),***,NE substantially reduced N and P_(2)O_(5) surpluses by 105.1 and 115.1 kg ha^(-1),respectively,and decreased apparent N loss by 110.8 kg ha^(-1) compared to *** results indicated that the NE system is an effective and feasible approach for improving NUE and promoting cleaner radish production in North China.

关键词： radish yield nutrient expert fertilizer recommendation nutrient utilization apparent N loss

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Simulation of Potential Production and Optimum Population Quantitative Indices for the Second Hybrid Rice

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Agricultural Sciences in China 2006年第7期5卷 498-505页

作者： YAN Li-Jiao YAO Zhong ZHENG Zhi-ming LI Hua-bin Agro-Ecology Institute Life Science College Zhejiang University Hangzhou 310029 P.R.China

The article established the HDRICE model by modifying the structure of the ORYZA1 model and revising its parameters by field experiments. The HDRICE model consists of the modules of morphological development of rice, daily dry matter accumulation and partitioning, daily CO2 assimilation of the canopy, leaf area, and tiller development. The model preferably simulated the dynamic rice development because of the thorough integration of the effects of temperature and light on the rates of rice development, photosynthesis, respiration, and. other ecophysiological processes. In addition, this model has attainable grain yield in the test experiment that showed the potential yield of cultivar Xieyou 46 ranged from 11 to 13 tons ha-~. Besides, the model was used to optimize the combinations of the transplanting date, seedling age and density for cultivar Xieyou 46 at Jinhua area, and the population quantitative indices to attain the potential yield such as maximum stems, effective panicles, filled grain number/leaf area, and so on. The result showed that the combination of transplanting date on July 25, seedling age of 35 days and base seedling density of 1.33 x 106ha-1 is the optimum combination for the second hybrid rice production in Jinhua County, China. And the maximum stems, the effective panicles, the filled grain per panicle, the peak of optimum LAI, LAI in later filling stage, and the filled grain number/leaf were 6.03×10^6ha, 3.99×10^6ha, 119.2, 8.59, 5-6, and 0.64, respectively.

关键词： simulation model potential production optimum population quantitative indices second hybrid rice

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基于g_λ变量的冗余优化模型

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模糊系统与数学 2017年第1期31卷 128-135页

作者：张鸿马丽涛哈明虎河北工程大学水电学院河北邯郸056038 河北工程大学数理科学与工程学院河北邯郸056038

为了解决Sugeno测度空间上系统寿命期望值、系统寿命的α乐观值和系统可靠性的系统性能优化问题,提出用g_λ变量来表征冗余元件寿命的冗余优化模型。首先,建立Sugeno冗余期望值模型、Sugeno冗余机会约束规划模型和Sugeno冗余相关机会规... 详细信息

为了解决Sugeno测度空间上系统寿命期望值、系统寿命的α乐观值和系统可靠性的系统性能优化问题,提出用g_λ变量来表征冗余元件寿命的冗余优化模型。首先,建立Sugeno冗余期望值模型、Sugeno冗余机会约束规划模型和Sugeno冗余相关机会规划模型;其次,为了求解模型,设计一种基于Sugeno模拟、多层神经网络和遗传算法的混合智能算法;最后,通过桥式系统的系统性能优化的算例验证所提模型和算法的可行性。

关键词： gλ变量 Sugeno测度空间冗余优化 Sugeno模拟混合智能算法

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两种气相色谱法测定辐照花生仁中挥发性碳氢化合物的研究

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分析测试学报 2010年第7期29卷 652-657页

作者：李安哈益明李庆鹏王锋中国农业科学院农产品加工研究所北京100193

通过对花生仁辐照前后碳氢化合物类型与浓度差异的分析,建立了判别花生仁是否经过辐照的两种气相色谱鉴定方法,即弗罗里硅土柱层析-气相色谱-火焰离子化检测方法（Florisil柱层析-GC-FID）和顶空-固相微萃取-气相色谱-质谱（HS-SPME-GC... 详细信息

通过对花生仁辐照前后碳氢化合物类型与浓度差异的分析,建立了判别花生仁是否经过辐照的两种气相色谱鉴定方法,即弗罗里硅土柱层析-气相色谱-火焰离子化检测方法（Florisil柱层析-GC-FID）和顶空-固相微萃取-气相色谱-质谱（HS-SPME-GC-MS）检测方法。采用添加回收率实验,比较了两种方法对花生仁中3种主要的脂肪酸（棕榈酸、硬脂酸和油酸）辐解产生的6种碳氢化合物1-十四烯（1-C14∶1）、正十五烷（C15∶0）、1-十六烯（1-C16∶1）、正十七烷（C17∶0）、1,7-十六二烯（1,7-C16∶2）和8-十七烯（8-C17∶1）的检测效果。研究结果表明,Florisil柱层析-GC-FID法更适合于碳氢化合物的定量分析,6种碳氢化合物的添加回收率为84%~119%,RSD为1.1%~7.5%,但方法的前处理过程较复杂。HS-SPME-GC-MS法操作简便,能对花生仁中的标识性碳氢化合物进行准确快速的定性分析,但6种碳氢化合物的回收率较低,而RSD值较高。研究表明,1,7-C16∶2和8-C17∶1是辐照花生仁形成的特异性辐解产物,其中1,7-C16∶2浓度增加最为显著,是鉴定辐照花生的最佳标识物。

关键词：碳氢化合物固相微萃取标识物气相色谱(GC) 花生仁

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Obtaining space-based SDO/AIA solar UV and EUV images from ground-based Hαobservations by deep learning

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Research in Astronomy and Astrophysics 2021年第6期21卷 233-240页

作者： Tie Liu Ying-Na Su Li-ming Xu hai-Sheng Ji Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China Jiangsu Urban and Rural Construction College Changzhou 213147China

In this work,we explore the mappings from solar images taken in Hα(6563 A)by the Global Oscillation Network Group(GONG)on the ground to those observed in eight different wavelengths(94,131,171,193,211,304,335 and 1600 A)by SDO/AIA in *** mappings are built by training the conditional Generative Adversarial Networks(cGANs)on datasets with 500 paired images,which are[Hα,AIA94],[Hα,AIA131],[Hα,AIA171],[Hα,AIA193],[Hα,AIA211],[Hα,AIA304],[Hα,AIA335]and[Hα,AIA1600].We evaluate the eight trained cGANs models on validation and test datasets with 154-pair images and 327-pair images,*** model generated fake AIA images match the corresponding observed AIA images well on large-scale structures such as large active regions and *** the small-scale flare loops and filament threads are difficult to *** quantitative comparisons are carried out on the validation and test datasets to score the *** find that the model-generated images in 304 and 1600 A match the corresponding observed images *** exploration suggests that the cGANs are promising methods for mappings between ground-based ha and space-based EUV/UV images,while some improvements are necessary.

关键词： methods:analytical techniques:image processing Sun:corona Sun:UV radiation

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Adsorption-desorption behavior of acetochlor to soils in the presence of some environmental substances

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Journal of Environmental Sciences 2002年第2期14卷 269-276页

作者： YE Chang ming, LEI Zhi fang (Research Center for Eco Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 Chin

The behavior of herbicide acetochlor adsorption desorption to soil in the presence of humic acid (ha), anionic surfactant sodium dodecylbenzene sulfonate (SDBS), cationic surfactant hexadecyltrimethyl ammonium bromide (HDAB) and NH 4NO 3 as a chemical fertilizer was studied. Observed acetochlor adsorption isotherm were well described using Freundlich isotherm equation, from which the desorption isotherm equation has been deduced. The deduced equation can more directly describe acetochlor desorption process. The results showed that the enhance of acetochlor adsorption capacity by solid ha was greater than by soluble ha. The presence of NH 4NO 3 can slightly enhance acetochlor adsorption to soil by comparison with that measured in NH 4NO 3 free solution. In soil water system, surfactant acetochlor interaction is very complex, and the surfactant adsorptions as well as acetochlor adsorption need to be considered. When acetochlor soil suspensions contained lower concentration SDBS or HDAB (40 mg/L), K f for acetochlor adsorption was decreased in comparison to that measured in SDBS or HDAB free solution. When acetochlor soil suspensions contained higher concentration SDBS or HDAB (corresponding 1400 mg/L or 200 mg/L), K f for acetochlor adsorption was increased in comparison to that measured in SDBS or HDAB free solution.

关键词： adsorption desorption acetochlor humic acid surfactants ammonium nitrate soil

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Construction of PAMAM-based Nanocomplex Conjugated with Pt(Ⅳ)-complex and Lauric Acid Exerting Both Anti-tumor and Antibacterial Effects

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Chinese Journal of Polymer Science 2023年第6期41卷 887-896,I0007页

作者： You-Tao Xin Lu-Yao Wang Huan-Huan Chang Fei-He Ma ming-Lei Sun Li Chen Hui Gao State Key Laboratory of Separation Membranes and Membrane Processes School of Materials Science and EngineeringTiangong UniversityTianjin 300387 China School of Chemistry and Chemical Engineering Tianjin Key Laboratory of Drug Targeting and BioimagingTianjin Enterprise Key Laboratory for Application Research of Hyaluronic AcidTianjin University of TechnologyTianjin 300384China

Oxaliplatin is the common chemotherapy drug for the treatment of colorectal cancer(CRC),however,the harmful Fusobacterium nucleatum(Fn)that existed in the CRC tumor tissues leads to extreme drug resistance to oxaliplatin,which reduces the anticancer *** we fabricated a new dendrimer-based nanocomplex with anti-tumor and antibacterial dual-functions through conjugating Pt(Ⅳ)-complex and lauric acid(LA)to the dendritic carrier PAMAM(G=3).The synthesized PAMAM-Pt-LA nanoparticle was further coated with hyaluronic acid(ha)on its surface through electrostatically interaction in order to enhance biocompatibility and tumor *** biocompatibility,anti-tumor activity and antibacterial activity of PAMAM-Pt-LA@ha nanocomplex were evaluated in *** results showed that the PAMAM-Pt-LA@ha nanocomplex ehxibited a good biocompatibility,high anti-colorectal cancer activity and high anti-Fn *** dual-functional nanocomplex provides a new method to develop anticancer nanomedicines that will be more therapeutically efficacious and less toxic than oxaliplatin for the treatment of CRC.

关键词： chemotherapy complex treatment

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