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79篇 您的检索式:作者名="Soulsby"
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1Hysteresis in sap flow and its controlling mechanisms for a deciduous broad-leaved tree species in a humid karst region显示文摘The critical zone(CZ) represents the intersection of the biosphere with the atmosphere, hydrosphere and lithosphere.Understanding the hydrological processes and human impact factors on the CZ is fundamental to sustainable water resources management for agroforestry. Transpiration(T) is an important component of terrestrial evapotranspiration(ET), and understanding the time lag(TL) between vegetation transpiration and meteorological factors can improve our knowledge of the mechanisms of vegetation adaptability to a changing environment. However, the controlling factors on the TL remain poorly understood. Therefore, the objective of this study is identifying the temporal dynamics of key controlling factors on the TL, using a typical deciduous broad-leaved tree species(Zenia insigins Chun) of CZ in subtropical humid karst regions. This species is used as an example to explore the characteristics of the TL between SF(sap flow) and hydro-meteorological forcing. Sap flow in these 6 trees was monitored using the thermal dissipation probes(TDP). Results showed that:(1) the peak of diurnal sap flow generally lagged behind PAR but preceded Ta(air temperature), RH(relative humidity) and VPD(vapor pressure deficit), with the mean TL of-67.4 min(PAR), 90.5 min(Ta), 91.6 min(RH) and 92.9 min(VPD), respectively;(2) TL had no significant relationships with the daily mean meteorological factors and soil moisture, but was highly(R^2>0.66) correlated to CRs(changing rates of meteorological factors) in the morning;(3) At seasonal scale, the sap flow rate and TL both were controlled by the seasonality of precipitation and temperature. Overall, the seasonality of the TL was caused by plants' high water loss and strongly active physiological response in hot seasons, leading to close stomata earlier than in cold seasons;(4) The reason why CRs proposed can explain the TL better than mean values of metrological factors is that the CRs considered the distribution and change processes of metrological factors in the daytime. This study may be helpful for understanding the physiological response of vegetation to climatic change, and may be useful for constructing models to simulate transpiration processes more accurately during a day.Rongfei ZHANG Xianli XU Meixian LIU Yaohua ZHANG Chaohao XU Ruzhou YI Wei LUO Chris SOULSBY 2019Science China Earth Sciences2019,62,11:9
2Distribution of ^3H—nicotine in Rat Tissues Under the Influence of Simulated Microgravity显示文摘Rat tail suspension offers a useful model to reproduce physiologic responses to weightlessness.The present study was conducted in the head-down-tilt(HDT) rat model to assess changes in metabolism of body tissues employing 3H-nicotine. Twelve male rats were used in the study. Half of the rats were tail suspended at 30°for two weeks on a 12/12 light/dark cycle. During this period,body weight, food and fluid intakes were measured. At term, animals were anesthetized and injected IV withe a solution contaming 4 microuries of micotine. After 90 min the animals were sacrificed, exsanguinated and tissues (brain,blood,trachea,salivary gland,lung,heart,esophagus,spleen, kidneys and testes) were harvested. The distribution of 3H-nicotine per gram of each tissue was determinded and ealeulated as percent of total injected radioactivity. Final body weights of suspended ammals were significantly (P < 0.0 5) lower than those of eontrols(309±21 vs 350±11g). 3HNicotine waw retained in greatest amounts by the kindneys, followed inorder by salivary glands, spleen, and gastrointestinal tissues. compared to non-suspended control, the tissue retention of nicotine in suspended animals was decreased in the following tissues:esphyagus (25 %), aorta (25%). fundus (25%), trachea (22%), adrenals (18%), spleen (17 %), and pancreas (12 %). The decreased retention of mcotine in tissues from suspended animals may be indicative of the fluid shifts and changes in blood flow to those tissue beds. The lack of differnces in nicotine retention in liver and kidney between control and suspended groups may implicate a normal metabolic function of these organs even under simulated weightlessness.PARIMAL CHOWDHURY MICHAEL E. SOULSBY AND JAMES N. PASLEY (Department of Physiology and Biophysics, University of Arkansas for Medical Scienses, Little Rock, Arkansas 72205, USA) 1999Biomedical and Environmental Sciences1999,12,2:6
3流域示踪水文模型研究综述显示文摘流域示踪水文模型是水文模型发展重要分支,通过示踪剂迁移与水分运动的耦合计算,深化对水流路径、水分来源及水龄分布等流域水文过程与水文功能的认识,实现气象条件与流域特征对产汇流过程及溶质运移控制作用的精准刻画。同时,示踪剂信息的耦合也为传统水文模型不确定性研究提供了新思路。针对这一水文学研究发展中的新领域,目前存在诸多挑战与机遇,迫切需要新理论与新方法及相关实践。论文系统梳理了流域示踪水文模型的研究进展,详细论述了建模类型及适用性、示踪剂与水分(水流)的耦合计算方法,以及针对特殊气候、地貌区的示踪水文模型,总结了示踪水文模型面临的挑战与发展方向,为深入开展相关研究提供参考借鉴。张志才 陈喜 程勤波 吴夏懿 Chris Soulsby 2020水文2020,40,6:5
4动物屏障对人房捕蚊效果的观察显示文摘目的 采取动物屏障对傣族人房进行蚊虫捕捉效果观察。方法 捕蚊工具为CDC诱蚊灯通宵诱捕 ,动物屏障采用当地耕牛。结果 两灯共捕蚊 2亚科 5属 9亚属 2 2种 ,经数据分析发现 ,有动物屏障的人房捕蚊效果与无动物屏障的效果差异无显著性 (t 周红宁 张再兴 李鸿斌 肖育江 Negel Hill Hannah Marie Soulsby 2003中国媒介生物学及控制杂志2003,14,4:2
5Hydraulic and sedimentary characteristics of habitat utilized by Atlantic salmon for spawning in the Girnock Burn,Scotland显示文摘MOIR H J SOULSBY C YOUNGSON A 1998Fisheries Management and Ecology1998,5,3:1
6L carnitine on oxidative stress induced by hind limb unloading in adult rats显示文摘Chowdhury P Soulsby M Kim K 2007Aviat Space Environ Med2007,78,6:1
7Effects of aminoguanidine on tissue oxidative stress induced by hindlimb unloading in rats显示文摘Chowdhury P Soulsby ME Scott JL 2009Ann Clin Sci2009,39,1:1
8Lipid peroxide in rat brain is increased by simulated weightlessness and decreased by a soy protein diet显示文摘Chowdhury P Soulsby M 2002Ann Clin Lab Sci2002,32,18:1
9Wave-current interaction within and outside the bottom boundary layez 显示文摘SOULSBY R L HAMM L KLOPMAN G 1993Coastal Engineering1993,21,:1
10Organizational Restructuring and Change in Transition Societies: Dominant Coalitions and the Dynamics of Managerial Power and Politics 显示文摘Soulsby A Clark E 2013Competition & Change2013,17,2:1
11Needs-led assessment : the challenges and the reality显示文摘Parry-Jones B SOULSBY J 0,,06:1
12Comparing chloride and water isotopes as hydrological tracers in two Scottish catchments 显示文摘Kirchner J W Tetzlaff D Soulsby C 2010Hydrological Processes2010,24,12:1
13Connectivity between landscapes and riverscapcs:a unifying theme in integrating hydrology and ecology in catchment science? 显示文摘TETZLAFF D SOULSBY C BACON P J 2007Hydrological Process2007,21,:1
14Analysis of acoustic measurements of suspended sediments显示文摘THORNE P D HARDCASTLE P J SOULSBY R L 1993Journal of Geophysical Research1993,98,1:1
15The form of the near-bed velocity profile in a tidally accelerating flow显示文摘Soulsby R L Dyer K R 1986Journal of Geophysical Research1986,86,9:1
16Derivation and validation of a new global method for assessing nutritional status in patients with cirrhosis显示文摘Morgan MY Madden AM Soulsby CT 2006Hepatology2006,44,4:1
17Inter-basin water trans-fers and drought management in the Kielder/Derwent system显示文摘Soulsby C Gibbons CN Robins T 1999Water and Environment Journal1999,13,3:1
18Development of Ascaris suum larvae from the third to the fourth stage in vitro显示文摘Sylk SR Stromberc BE Soulsby EJL 1974Int J Parasitol1974,4,:1
19Impacts of an inter-ba-sin water transfer:distribution and abundance of Micronecta poweri (Insecta:Corixidae) in the River Wear, north-east England 显示文摘Gibbins CN Jeffries M J Soulsby C 2000Aquatic Conservation:Marine and Freshwater Ecosystems2000,10,2:1
20Resistance to antimicrobials in humans and an- imals显示文摘Soulsby EJ 2005BMJ2005,331,7527:1
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