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    题名 作者 年代 出处 被引量
1Rice MtN3/Saliva/SWEET Family Genes and Their Homologs in Cellular Organisms显示文摘MtN3/saliva/SWEET-type 基因,独自或在一个家庭组存在,在多样的有机体被发现,从 monocellular 原生动物到更高的优核质,在细胞的有机体显示他们的重要性。这些基因编码展示 MtN3/saliva 域的 polytopic 膜蛋白质,也作为一次 PQ 循环重复知道。米饭 MtN3/saliva/SWEET 基因家庭由 21 个成员组成并且在在定序的有机体的最大的家庭之中。积累数据建议这些基因涉及多重生理的进程,包括繁殖开发,老朽,环境改编,和 hostpathogen 相互作用,在不同种类。在米饭,包括 Xa13/Os8N3/OsSWEET11,它为繁殖开发必要,家庭的一些成员被病原的细菌 Xanthomonas oryzae pv 使用。oryzae 将入侵它的主人。新兴的数据也表明了至少,一些 MtN3/saliva/SWEET-type 蛋白质可以由经由和离子 transporters 或作为糖 transporters 的相互作用便于离子运输调整不同生理的过程。MtN3/saliva/SWEET-type 基因的积累的知识将帮助阐明他们在不同有机体的函数的分子的库。Meng Yuan Shiping Wang 2013Molecular Plant2013,6,3:52
2Rice Gene Network Inferred from Expression Profiling of Plants Overexpressing OsWRKY13, a Positive Regulator of Disease Resistance显示文摘积累的信息显示植物疾病电阻发信号小径经常与调整发展过程或不能生活的压力回答的另外的小径交往。然而,串音的这些类型的分子的机制仍然保持糟糕在大多数情况中理解。这里,我们报导那 OsWRKY13,到细菌、真菌的病原体的米饭电阻的使活跃之物,看起来在导致病原体的水杨酸盐依赖者防卫小径和五条另外的生理的小径之中为串音作为一个会聚的点工作。OsWRKY13-overexpressing 线的表达式侧面的染色体宽的分析建议 OsWRKY13 直接或间接地调整潜在地根据基因本体论数据库的分类涉及不同生理的进程的超过 500 基因的表达式。由比较在已知的小径或在 OsWRKY13-overexpressing 和野类型的植物之间的病原体感染和显型的细胞的过程工作的基因的表示模式,我们的数据建议 OsWRKY13 也在病原体感染期间是另外的生理的过程的一个管理者。联系 OsWRKY13 的疾病抵抗小径 synergistically 与 glutathione/glutaredoxin 系统和 flavonoid 生合成小径经由 OsWRKY13 交往监视氧化还原作用动态平衡并且分别地,通常认为地在 OsWRKY13-overexpressing 线提高抗菌剂 flavonoid phytoalexins 的生合成。同时,联系 OsWRKY13 的疾病抵抗小径看起来经由 OsWRKY13 与调停 SNAC1 的不能生活的压力防卫小径, jasmonic 酸发信号小径,和 terpenoid 新陈代谢小径反对地交往压制盐和冷防卫回答以及通常认为地延迟米饭生长和开发。Deyun Qiu Jun Xiao Weibo Xie Hongbo Liu Xianghua Li Lizhong Xiong Shiping Wang 2008Molecular Plant2008,1,3:38
3Terrestrial carbon sinks in China and around the world and their contribution to carbon neutrality显示文摘Enhancing the terrestrial ecosystem carbon sink(referred to as terrestrial C sink) is an important way to slow down the continuous increase in atmospheric carbon dioxide(CO_(2)) concentration and to achieve carbon neutrality target.To better understand the characteristics of terrestrial C sinks and their contribution to carbon neutrality,this review summarizes major progress in terrestrial C budget researches during the past decades,clarifies spatial patterns and drivers of terrestrial C sources and sinks in China and around the world,and examines the role of terrestrial C sinks in achieving carbon neutrality target.According to recent studies,the global terrestrial C sink has been increasing from a source of (-0.2±0.9) Pg C yr^(-1)(1 Pg=1015g)in the 1960s to a sink of (1.9±1.1) Pg C yr^(-1) in the 2010s.By synthesizing the published data,we estimate terrestrial C sink of 0.20–0.25 Pg C yr^(-1) in China during the past decades,and predict it to be 0.15–0.52 Pg C yr^(-1) by 2060.The terrestrial C sinks are mainly located in the mid-and high latitudes of the Northern Hemisphere,while tropical regions act as a weak C sink or source.The C balance differs much among ecosystem types:forest is the major C sink;shrubland,wetland and farmland soil act as C sinks;and whether the grassland functions as C sink or source remains unclear.Desert might be a C sink,but the magnitude and the associated mechanisms are still controversial.Elevated atmospheric CO_(2) concentration,nitrogen deposition,climate change,and land cover change are the main drivers of terrestrial C sinks,while other factors such as fires and aerosols would also affect ecosystem C balance.The driving factors of terrestrial C sink differ among regions.Elevated CO_(2) concentration and climate change are major drivers of the C sinks in North America and Europe,while afforestation and ecological restoration are additionally important forcing factors of terrestrial C sinks in China.For future studies,we recommend the necessity for intensive and long-term ecosystem C monitoring over broad geographic scale to improve terrestrial biosphere models for accurately evaluating terrestrial C budget and its dynamics under various climate change and policy scenarios.Yuanhe Yang Yue Shi Wenjuan Sun Jinfeng Chang Jianxiao Zhu Leiyi Chen Xin Wang Yanpei Guo Hongtu Zhang Lingfei Yu Shuqing Zhao Kang Xu Jiangling Zhu Haihua Shen Yuanyuan Wang Yunfeng Peng Xia Zhao Xiangping Wang Huifeng Hu Shiping Chen Mei Huang Xuefa Wen Shaopeng Wang Biao Zhu Shuli Niu Zhiyao Tang Lingli Liu Jingyun Fang 2022Science China(Life Sciences)2022,65,5:32
4Adventitious root formation in rice requires OsGNOM1 and is mediated by the OsPINs family显示文摘在谷物的含纤维的根系统包括首先偶然根(艺术) ,它在营养素和水举起起重要作用。关于位于 AR 开发下面的分子的机制的当前的知识仍然是有限的。我们这里报导四米饭(Oryza sativa L.) 的隔离异种从不同基因背景,所有哪个在 AR 是有缺点的形成。这些异种展出了侧面的根(LR ) 和 gravitropism 的部分损失的减少的数字。也显示的异种提高了敏感到 N-1-naphthylphthalamic 酸,极的植物生长素运输的一个禁止者(轻拍) ,显示变化影响了植物生长素运输。用四异种之一的位置的克隆表明它被一个 guanine 核苷酸交换因素的 loss-of-function 为 ADP-ribosylation 因素(OsGNOM1 ) 引起。转基因的植物显示出的 promoter::GUS 的 RT-PCR 和分析那 OsGNOM1 在 AR primordia,脉管的纸巾, LR,根尖端,叶子,花药和词根静脉被表示,与类似于植物生长素的一个分发模式。另外, OsPIN2, OsPIN5b 和 OsPIN9 的表情在异种被改变。一起拿,这些调查结果显示 OsGNOM1 通过调整影响艺术的形成轻拍。Shiping Liu Jirong Wang Lu Wang Xiaofei Wang Yanhong Xue Ping Wu Huixia Shou 2009Cell Research2009,19,9:29
5Responses of soil respiration to simulated precipitation pulses in semiarid steppe under different grazing regimes显示文摘Aims Precipitation pulses and different land use practices(such as grazing)play important roles in regulating soil respiration and carbon balance of semiarid steppe ecosystems in Inner Mongolia.However,the interactive effects of grazing and rain event magnitude on soil respiration of steppe ecosystems are still unknown.We conducted a manipulative experiment with simulated precipitation pulses in Inner Mongolia steppe to study the possible responses of soil respiration to different precipitation pulse sizes and to examine how grazing may affect the responses of soil respiration to precipitation pulses.Methods Six water treatments with different precipitation pulse sizes(0,5,10,25,50 and 100 mm)were conducted in the ungrazed and grazed sites,respectively.Variation patterns of soil respiration of each treatment were determined continuously after the water addition treatments.Important Findings Rapid and substantial increases in soil respiration occurred 1 day after the water treatments in both sites,and the magnitude and duration of the increase in soil respiration depended on pulse size.Significantly positive relationships between the soil respiration and soil moisture in both sites suggested that soil moisture was the most important factor responsible for soil respiration rate during rain pulse events.The ungrazed site maintained significantly higher soil moisture for a longer time,which was the reason that the soil respiration in the ungrazed site was maintained relatively higher rate and longer period than that in the grazed site after a rain event.The significant exponential relationship between soil temperature and soil respiration was found only in the plots with the high water addition treatments(50 and 100 mm).Lower capacity of soil water holding and lower temperature sensitivity of soil respiration in the grazed site indicated that degraded steppe due to grazing might release less CO_(2) to the atmosphere through soil respiration under future precipitation and temperature scenarios.Shiping Chen Guanghui Lin Jianhui Huang Mao He 2008Journal of Plant Ecology2008,1,4:24
6The discovery of Palaeoproterozoic volcanic rocks in the Bulunkuoler Group from the Tianshuihai Massif in Xinjiang of Northwest China and its geological significance显示文摘In the Dabudaer region of the Tianshuihai Massif (Xinjiang, Northwest China), metavolcanic rocks within the mainly meta-sedimentary Bulunkuoler Group are basalt, basaltic andesite, and rhyolite. In situ zircon U-Pb LA-ICP-MS dating on rhyolite magmatic zircons yielded an age of 2481±14 Ma, interpreted as the eruption age of the Bulunkuoler Group volcanic rocks. The basalt and basaltic andesite are low-Al tholeiite series and the rhyolite is low-Al calc-alkaline series. All of rocks are charac-terized by enrichment of LREE and LILE (Rb, Th and Ba), depletion of P, Nb, Ta and Ti, and absence of Eu anomalies. The εNd(t) of basalts ranges from 3.14 to 4.88 indicating a depleted mantle source. The trace element signatures show that these magmas experienced intense crustal contamination during their ascent. Direct evidence for crustal contamination is the xenocrystic zircons in the ryholite, with ages back to ca. 3300 Ma. The primitive-mantle normalized and Zr/Y-Zr diagrams for the basic volcanic rocks show that they formed in an intra-continental tectonic setting. Combined with the previous studies and compared with North China Craton Neoarchean basic volcanic rocks, it is supposed that the Bulunkuoler Group volcanic rocks reflect the Palaeoproterozoic mantle magma underplating and interaction with felsic crust.JI WenHua LI RongShe CHEN ShouJian HE ShiPing ZHAO ZhenMing BIAN XiaoWei ZHU HaiPing CUI JiGang REN JuanGang 2011Science China Earth Sciences2011,54,1:22
7Topology Optimal Design of Material Microstructures Using Strain Energy-based Method显示文摘敏感分析和使用的微观结构的拓扑学优化拉紧基于精力的方法被介绍。与 homogenization 方法相比,基于精力的方法有的紧张更高计算效率和简化编程有利。双凸的编程方法和周界限制计划被用来优化 2D 和 3D 微观结构。数字结果显示基于精力的方法有的紧张象为 orthotropic 材料的 homogenization 方法的一样的有效性。Zhang Weihong Wang Fengwen Dai Gaoming Sun Shiping 2007Chinese Journal of Aeronautics2007,20,4:21
8Anchoring mechanism and application of hydraulic expansion bolts used in soft rock roadway floor heave control显示文摘Comparing with the resin bolt, the hydraulic expansion bolt has different anchoring mechanism and application advantage. According to the working mechanism of the hydraulic expansion bolt, its anchoring force is expressed in four forms including support anchoring force, tension anchoring force, expansion anchoring force and tangent anchoring force, and their values can be obtained on the basis of each calculation formula. Among them, the expansion anchoring force, which is the unique anchoring force of the hydraulic expansion bolt, can provide confining pressure to increase the strength of rock. Aiming at solving the problem of stability control in the soft rock roadway in Jinbaotun Coal Mine which has a double layer of 40 U-type sheds and cannot provide enough resistance support to control floor heave, the study reveals the mechanism of floor heave in the soft rock roadway, and designs the reasonable support parameters of the hydraulic expansion bolts. The observed results of floor convergence indicate that the hydraulic expansion bolts can prevent the development and flow of the plastic zone in the floor rock to control floor heave. Research results enrich the control technology in the soft rock roadway.Chang Qingliang Zhou Huaqiang Xie Zhihong Shen Shiping 2013International Journal of Mining Science and Technology2013,23,3:20
9Whole-genome sequencing of 508 patients identifies key molecular features associated with poor prognosis in esophageal squamous cell carcinoma显示文摘Esophageal squamous cell carcinoma(ESCC)is a poor-prognosis cancer type with limited understanding of its molecular etiology.Using 508 ESCC genomes,we identified five novel significantly mutated genes and uncovered mutational signature clusters associated with metastasis and patients’outcomes.Several functional assays implicated that NFE2L2 may act as a tumor suppressor in ESCC and that mutations in NFE2L2 probably impaired its tumor-suppressive function,or even conferred oncogenic activities.Additionally,we found that the NFE2L2 mutations were significantly associated with worse prognosis of ESCC.We also identified potential noncoding driver mutations including hotspot mutations in the promoter region of SLC35E2 that were correlated with worse survival.Approximately 5.9%and 15.2%of patients had high tumor mutation burden or actionable mutations,respectively,and may benefit from immunotherapy or targeted therapies.We found clinically relevant coding and noncoding genomic alterations and revealed three major subtypes that robustly predicted patients’outcomes.Collectively,we report the largest dataset of genomic profiling of ESCC useful for developing ESCC-specific biomarkers for diagnosis and treatment.Yongping Cui Hongyan Chen Ruibin Xi Heyang Cui Yahui Zhao Enwei Xu Ting Yan Xiaomei Lu Furong Huang Pengzhou Kong Yang Li Xiaolin Zhu Jiawei Wang Wenjie Zhu Jie Wang Yanchun Ma Yong Zhou Shiping Guo Ling Zhang Yiqian Liu Bin Wang Yanfeng Xi Ruifang Sun Xiao Yu Yuanfang Zhai Fang Wang Jian Yang Bin Yang Caixia Cheng Jing Liu Bin Song Hongyi Li Yi Wang Yingchun Zhang Xiaolong Cheng Qimin Zhan Yanhong Li Zhihua Liu-Show 2020Cell Research2020,30,10:19
10Characterization of Xanthomonas oryzae- Responsive cis-Acting Element in the Promoter of Rice Race-Specific Susceptibility Gene Xa13显示文摘米饭 Xa13 基因,其倡导者怀有 UPT (由抄写起来调整像使活跃之物[TAL ] 受动器) 盒子, UPTPthXo1,在 Xanthomonas oryzae pv 引起的赛跑特定的致病力起一个枢轴的作用。oryzae (Xoo ) 种类 PXO99。PXO99 由导致 Xa13 引起米饭疾病。然而, UPTPthXo1 框是否是在 Xa13 表示的激活的唯一的 PXO99 应答的调整 cis 元素,是未知的。我们在米饭和 PXO99 蛋白质的绑定分析了一系列截断结束、截断地点、变异地点的 Xa13 倡导者的表达式到未经触动、部分,或变异地点的 UPTPthXo1 框。在 Xa13 倡导者, UPTPthXo1 盒子是导致导致 PXO99 的 Xa13 表示的唯一的 Xoo 应答的行动 cis 元素。5'-terminal 框的第二,第三,和第四核苷酸为细菌的蛋白质绑定和基因激活是重要的;任何一个这些地点的变化废除了导致 PXO99 的基因表示。而且, UPTPthXo1 盒子的 3'-half 也为蛋白质绑定和基因激活被要求。这些调查结果将经由 UPT 盒子和 TAL 受动器提高我们米饭和 Xoo 的相互作用的分子的机制的理解。Ting Yuan Xianghua Li Jinghua Xiao Shiping Wang 2011Molecular Plant2011,4,2:16
11Using strain energy-based prediction of effective elastic properties in topology optimization of material microstructures显示文摘一个其他的紧张精力方法在这篇论文为 orthotropic 材料的有效有弹性的性质的预言被建议。方法在拓扑学优化过程被实现设计细胞的固体。比较研究在紧张精力方法和著名 homogenization 方法之间被做。当同类的边界条件适当地被指定时,数字结果证明两个方法在数字预言和有效有弹性的张肌的敏感分析同意很好。二维并且三维的微观结构被把建议方法与凸的编程的双优化算法相结合为最大的僵硬图案优化。令人满意的结果为许多设计盒子被获得。Weihong Zhang Gaoming Dai Fengwen Wang Shiping Sun Hicham Bassir 2007Acta Mechanica Sinica2007,23,1:15
12Cavity length below chute aerators显示文摘It is proved that air entrainment is one of the efficient measures dealing with cavi-tation control for the release works of hydropower projects. There are many factors to be considered in designing a chute aerator. One of the most important factors concerns the cavity length below the aerator,which has outstanding effects on air entrainment against cavitation damage. It is crucial to determine reasonable emergence angle for the calculation of the cavity length. In the present paper the overall effects of structural and hydraulic parameters on the emergence angle of the flow from the aerator were analyzed. Four improved expressions of the emer-gence angle with weight coefficient were investigated through experimental data of 68 points observed from 12 aerators of 6 hydropower projects,of both model and prototype,on the basis of error theory. A method to calculate the cavity length be-low aerators was suggested,which considers overall effects of the above men-tioned parameters. Comparison between the method in this paper and the other five methods of calculating the cavity length showed that the present method is much more reliable than the existing methods while the mean error of the method is less than others.WU JianHua RUAN ShiPing 2008Science China(Technological Sciences)2008,51,2:14
13Observation of mega-dune evaporation after various rain events in the hinterland of Badain Jaran Desert, China显示文摘The formation mechanisms of the mega-dunes and lakes in the hinterland of Badain Jaran Desert,China,is the focus of extensive academic research in the field of geoscience,and an often debated topic is whether atmospheric precipitation on the mega-dune can infiltrate to recharge groundwater.In the present study,the probability distribution functions and the return period analysis of extreme daily precipitation based on long-term precipitation records for the southern margin of Badain Jaran Desert and 2-year observation of hinterland precipitation were used to classify precipitation in the desert region.The data of automatic weather station and eddy covariance system in the desert hinterland were used to analyze evaporation on the mega-dune surface after various rain events.The results showed that the rain events in the desert could be divided into three categories.The first is conventional precipitation(CP),which is below 5 mm,accounting for roughly 90%of all rain events in the desert.The second and third categories are ordinary annual maximum(OAM)and extreme precipitation(EP),in which precipitation is roughly 20 mm and more than 40 mm,respectively.The atmospheric precipitation of CP and OAM evaporated from the megadune surface in 1–3 days and 3–4 weeks,respectively.Following an EP event,the mega-dune evaporation was negatively influenced by the upper dry sand layer,and a lengthy period was required for its complete removal.The accumulative evaporation and accumulative precipitation of all three types of rain events indicated that local atmospheric precipitation had no significant contribution to recharging the groundwater system in the hinterland of Badain Jaran Desert.This research will benefit comprehensive elucidation of the formation mechanism of lakes in the hinterland of Badain Jaran Desert.Ning Ma Naiang Wang Liqiang Zhao Zhenyu Zhang Chunyu Dong Shiping Shen 2014Chinese Science Bulletin2014,59,2:14
14Rice MtN3/saliva/SWEET gene family: Evolution,expression profiling, and sugar transport显示文摘The rice MtN3/saliva/SWEET gene family consists of21 paralogs. However, their functions in physiological processes are largely unknown, although at least three of the 21 paralogs are used by pathogenic bacteria to infect rice.Here, we report the evolutionary features, transcriptional characteristics, and putative functions in sugar transport of this gene family. The wild rice accessions in this study included those with AA, BB, CC, BBCC, CCDD, EE, and GG genomes,which appeared approximately 0.58–14.6 million years ago.The structures, chromosomal locations, phylogenetic relationships, and homologous distribution among the accessions suggest that the number of rice MtN3/saliva/SWEET paralogs gradually increased as the Oryza genus evolved, and one third of the paralogs may have originated recently. These paralogs are differentially expressed in vegetative and reproductive tissues, in the leaf senescence process, and in signaling dependent on gibberellic acid, cytokinin, or 1-naphthalene acetic acid(an analog of auxin), suggesting that they may be associated with multiple physiological processes. Four paral ogs could transport galactose in yeast, which suggests tha they may have a similar function in rice. These results will help to elucidate their roles and biochemical functions in rice development, adaptation to environment, host-pathogen interaction, and so forth.Meng Yuan Junwei Zhao Renyan Huang Xianghua Li Jinghua Xiao Shiping Wang 2014Journal of Integrative Plant Biology2014,56,6:14
15Electrochemical single nucleotide polymorphisms genotyping on surface immobilized three-dimensional branched DNA nanostructure显示文摘An electrochemical assay for single nucleotide polymorphisms (SNPs) genotyping is reported. Although electrochemical method is sensitive for DNA detection on surfaces, the ability of surface assay to precisely recognize DNA hybridization event is sacrificed to some extent due to the crowded confined surfaces environments that disfavor DNA hybridization. In the present study, we employed branched tetrahedron structure probes (TSPs) to replace regular linear single stranded DNA capture probes that were immobilized on solid surfaces. This three-dimensional DNA nanostructure lowers the density of immobilized DNA probes on confined surfaces, providing a hybridization environment that is similar to homogenous solution. This TSP-based electrochemical assay reveals excellent performance for SNPs genotyping with concentration as low as 1 nM.GE ZhiLei PEI Hao WANG LiHua SONG ShiPing FAN ChunHai 2011Science China Chemistry2011,54,8:13
16Plant phenological responses to climate change on the Tibetan Plateau: research status and challenges显示文摘Phenology studies the cycle of events in nature that are initiated and driven by an annually recurring environment. Plant phenology is expected to be one of the most sensitive and easily observable natural indicators of climate change. On the Tibetan Plateau(TP), an accelerated warming since the mid-1980 s has resulted in signiicant environmental changes. hese new conditions are accompanied by phenological changes that are characterized by considerable spatiotemporal heterogeneity. Satellite remote sensing observed widespread advance in the start of the plant growing season across the plateau during the 1980 s and 1990 s but substantial delay over 2000–2011 in the southwest although it continued to advance in the northeast regions of the TP. Both observational studies and controlled experiments have revealed, to some extent, the positive role of higher preseason temperature and even more precipitation in advancing the leaf onset and irst lowering date of the TP. However, a number of rarely visited research issues that are essential for understanding the role of phenology in ecosystem responses and feedback processes to climate change remain to be solved. Our review recommends that addressing the following questions should be a high priority. How did other phenological events change, such as lowering and fruiting phenology? What are the inluences from environmental changes other than temperature and precipitation, including human activities such as grazing? What are the genetic and physiological bases of plants phenological responses?How does phenological change inluence ecosystem structure and function at diferent scales and feedback to the climate system? Investigating these research questions requires, irst of all, new data of the associated environmental variables, and consistent and reliable phenological observation using diferent methodologies(i.e. in situ observations and remote sensing).Miaogen Shen Shilong Piao Tsechoe Dorji Qiang Liu Nan Cong Xiaoqiu Chen Shuai An Shiping Wang Tao Wang Gengxin Zhang 2015National Science Review2015,2,4:13
17Production of β-1,3-glucanase and chitinase of two biocon-trol agents and their possible modes of action显示文摘Pichia membranefaciens Hansen and Candida guilliermondii (Cast) Langeronet Guerra are two antagonists of R. stolonifer on harvested nectarine and peach fruits. In this study, β-1,3-glucanase and chitinase activities of the antagonists were induced in vitro and in vivo. The highest β-1, 3-glucanase activity was detected in Lilly-Barnett minimal salt medium supplemented with glucose in combination with CWP of R. stolonifer as a carbon source. The β-1,3-glucanase activity of P. membranefaciens reached the maximum level, being 114.0 SU (specific activity unit), and that of C. guilliermondii reached 103.2 SU. The lowest β-1,3-glucanase activity was observed in the medium containing glucose as sole car-bon source. P. membranefaciens was able to produce signifi-cantly higher levels of chitinase (exochitinase and endochiti-nase) in vitro than C. guilliermondii grown in Czapeck mini-mal medium. An increase in β-1,3-glucanase and chitinase activity was also triggered by wounding, adding of carbon sourcesFAN Qing, TIAN Shiping, LIU Haibo & XU YongInstitute of Botany, Chinese Academy of Sciences, Beijing 100093, China 2002Chinese Science Bulletin2002,47,4:11
18Organic carbon accumulation capability of two typical tidal wetland soils in Chongming Dongtan,China显示文摘We measured organic carbon input and content of soil in two wetland areas of Chongming Dongtan(Yangtze River Estuary) to evaluate variability in organic carbon accumulation capability in different wetland soils.Observed differences were investigated based on the microbial activity and environmental factors of the soil at the two sites.Results showed that the organic carbon content of wetland soil vegetated with Phragmites australis(site A) was markedly lower than that with P.australis and Spartina alterniflora(site B).Sites differences were due to higher microbial activity at site A,which led to higher soil respiration intensity and greater carbon outputs.This indicated that the capability of organic carbon accumulation of the site B soils was greater than at site A.In addition,petroleum pollution and soil salinity were different in the two wetland soils.After bio-remediation,the soil petroleum pollution at site B was reduced to a similar level of site A.However,the culturable microbial biomass and enzyme activity in the remediated soils were also lower than at site A.These results indicated that greater petroleum pollution at site B did not markedly inhibit soil microbial activity.Therefore,differences in vegetation type and soil salinity were the primary factors responsible for the variation in microbial activity,organic carbon output and organic carbon accumulation capability between site A and site B.Shiping Zhang Lei Wang Jiajun Hu Wenquan Zhang Xiaohua Fu Yiquan Le Fangming Jin 2011Journal of Environmental Sciences2011,23,1:11
19Internet of Things to network smart devices for ecosystem monitoring显示文摘Smart, real-time, low-cost, and distributed ecosystem monitoring is essential for understanding and managing rapidly changing ecosystems. However, new techniques in the big data era have rarely been introduced into operational ecosystem monitoring, particularly for fragile ecosystems in remote areas.We introduce the Internet of Things(IoT) techniques to establish a prototype ecosystem monitoring system by developing innovative smart devices and using IoT technologies for ecosystem monitoring in isolated environments. The developed smart devices include four categories: large-scale and nonintrusive instruments to measure evapotranspiration and soil moisture, in situ observing systems for CO2 and d13 C associated with soil respiration, portable and distributed devices for monitoring vegetation variables, and Bi-CMOS cameras and pressure trigger sensors for terrestrial vertebrate monitoring. These new devices outperform conventional devices and are connected to each other via wireless communication networks. The breakthroughs in the ecosystem monitoring IoT include new data loggers and longdistance wireless sensor network technology that supports the rapid transmission of data from devices to wireless networks. The applicability of this ecosystem monitoring IoT is verified in three fragile ecosystems, including a karst rocky desertification area, the National Park for Amur Tigers, and the oasis-desert ecotone in China. By integrating these devices and technologies with an ecosystem monitoring information system, a seamless data acquisition, transmission, processing, and application IoT is created. The establishment of this ecosystem monitoring IoT will serve as a new paradigm for ecosystem monitoring and therefore provide a platform for ecosystem management and decision making in the era of big data.Xin Li Ning Zhao Rui Jin Shaomin Liu Xiaomin Sun Xuefa Wen Dongxiu Wu Yan Zhou Jianwen Guo Shiping Chen Ziwei Xu Mingguo Ma Tianming Wang Yonghua Qu Xinwei Wang Fangming Wu Yuke Zhou 2019Science Bulletin2019,64,17:10
20Connection between interannual variability of the western Pacific and eastern Indian Oceans in the 1997 - 1998 El Nino event显示文摘In this paper, the sea surface height and the heat content of the upper ocean are analyzed to retrieve the relationship of interannual variabilities between the tropical western Pacific and eastern Indian Oceans during the 1997 ~ 1998 El Nino event. In the prophase of this El Nino, the negative sea level anomalies (SLA) occurred in the tropical western Pacific (TWP) firstly, and then appeared in the tropical eastern Indian Ocean (TEI). The negative heat content anomalies (HCA) emerged in the TWP before this El Nino burst while the SLA signals developed over there. During the mature stage of this El Nifio, two kinds of signals in the TWP and TEI turned to be the maximum negative sequently. Due to the connected interarmual adjustment between the TEI and TWP, we adopted a method to estimate the Indonesian Throughflow (ITF) transport by calculating the HCA budget in the TEI. The indirect estimation of the ITF was comparable to the observation values. Therefore, the anomalies in the TEI had been proved as advecting from the TWP through the ITF during the 1997 ~ 1998 El Nino.WANGDongxiao LIUQinyan LIUYun SHIPing 2004Progress in Natural Science:Materials International2004,14,5:10
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