季节

The max value of the spatial heterogeneity grade were decrease according to the increase of decay degree of stump in the gap with stump.(4) The result showed by studing the season change of soil respiration in a conifer-broadleave forest after select cutting in Xiaoxingan Amount,soil respiration presenced the well season change after select cutting.The soil surface CO_2 flux has good correlated with soil temperature and soil moisture.

4对小兴安岭地区典型针阔混交林择伐后土壤呼吸速率季节变化研究结果表明，择伐作业后，土壤呼吸速率呈现规律性的(来源：AdaB6565C论文网www.abclunwen.com)季节变化，林地表面土壤呼吸速率与土壤温度和湿度有着较好的相关性，土壤温度和湿度共同解释了林地表面土壤呼吸速率的68.10%～98.9%。

The level of energy exchange is higher in sammer and winter. The sensibility of air temperature to global radiation above the glacial surface is much more low than that in free-glacier areas.

Yr，只有〓为冰川所吸收，冰川表面只有4-10月通过辐射过程吸收能量，其它季节均为支出能量，冰川表面的能量交换水平在盛夏与隆冬季节均较高，冰川表面气温对总辐射通量变化的敏感性比非冰川区要小得多。

The annual average density was 14.63 per hectare in saline algae zone, 7.50 per hectare in Scirpus marqueter/Scirpus triqueter zone and 1 .59 per hectare in reed zone;(4) The avian community similarity in between adjoining stages of vegetation succession was higher than that in between apart stages.

对不同季节的植被演替阶段鸟类群落相似性进一步比较发现，任何一个季节S_1和S_3的值均分别大于S_2；(5)鸟类群落的多样性与群落中优势种华东师范大学2004届硕L学位论文中文摘要所占的数量比例呈负相关。

Due to the seasonal change of water discharge and marine phytoplankton blooming,terrigenous inputs exceeded marine inputs in winter and the reverse results have been found in summer.

长江口悬浮颗粒有机质的碳同位素值表现出明显的季节变化特征，2月较8月偏负，表现出冬季陆源输入偏重而夏季海源输入偏重的现象，这主要是受径流量枯洪季变化和浮游生物生长季节变化两种因素的叠加作用。

Therelationship between the turbulent kinetic energy and its dissipation rate,whichis widely used to parameterize the dissipation rate in turbulence closure models,is found to hold well for both reversing and rotating flows,but with differentcoefficients.Microstructure profiling measurements at two comparative stations (a deepercentral basin and a local shelf break) in the stratified Yellow Sea are analyzed,with emphasis on tidal and internal-wave induced turbulence near the bottomand in the pyenocline.The water column has a distinct three-layer thermohaline structure,consisting of weakly stratified surface and bottom boundary layers anda narrow sharp pycnocline.Turbulence in the surface layer is controlled by thediurnal cycle of buoyancy flux and wind forcing at the sea surface.while thebottom stress induced by barotropic tidal eurrents dominates turbulence in thebottom boundary layer.The maximum level at which the tidally enhanced mixingcan affect generally depends on the magnitude of the tidal current,and it canbe up to 10-15 m in the Yellow Sea.This suggests that,in the deeper regionsof the shelf seas,turbulent dissipation and mixing are very weak at the levelsbetween the near-bottom tidally enhanced layer and the pycnocline.Therefore,these levels provide a significant bottle neck for the vertical exchanges.In theshallow regions,however,the tidally-induced turbulence can occupy the wholewater colum below the pycnocline.A quarter-diurnal periodicities of the turbulentdissipation rate and eddy diffusivity are found at different heights with evidenttime lag.In the relatively flat central basin,the pycnocline is essentially non-turbulent and internal-wave activity is very weak.Therefore,vertical fluxes acrossthe pycnocline decreased to molecular levels.In contrast,internal waves of variousperiods can be always found near the local shelf break.

对强层化季节黄海两对比性站位(分别位于中央海盆区与局地陆坡区)处层化、内波以及湍流混合特征的研究结果表明：1、强层化季节的陆架海水体一般呈现显著的三层热盐结构，在水体近乎混合均匀的上混合层与潮流底边界层之间为强跃层；2、近表层水体的湍流混合强度主要由海表浮力通量的日变化与海表风强迫控制，而在潮流底边界层内，潮混合是水体热量、物质、动量与能量垂直交换的主要机制；3、潮混合影响的深度由潮流大小决定，在黄海，一般可达10-15 m，因此，在水深较深的区域，在跃层与潮混合所至深度范围的上界之间存在湍流混合非常弱的区域，这显著抑制水体内物质的垂直通量，为物质垂直交换的瓶颈，而在水深较浅的区域，潮混合影响范围可至跃层底部，因此物质在跃层以下整个水体中混合非常均匀，当跃层内间歇性强混合发生时，可以产生显著的跨跃层物质输运；4、近底潮致强湍流耗散缓慢地向上传播，底上不同深度处垂直湍扩散系数也具有显著的位相差异，且二者均随时间呈现四分之一周日周期的变化；5、在地形较为平坦的中央海盆区，内波活动非常微弱，因此跃层内湍流混合非常弱，垂直扩散系数为分子扩散水平，跨跃层物质通量受到显著抑制，而在地形变化较为显著的局地陆坡区，内波活动非常活跃，除内潮的影响外，高频内波与内孤立波的影响也很显著，因此跃层内存在很强的间歇性强混合，内孤立波存在的区域，水体湍流混合显著增强。

Much data such as indoor and outdoor temperature, the solar radiation, the core and surface temperature of Trombe wall , the temperature and velocity of vent airflow were recorded every ten minutes and saved in computer by a computerized data-logger device.

本研究在新建成的被动式太阳房内，利用多通道计算机巡回检测系统，对室内外温度、太阳辐射强度、集热蓄热墙体温度以及通风口风速、温度进行了长期实测，研究含有 Trombe墙体的新建被动式太阳房采暖季节的热性能，采暖季节的室内温度随室外气象条件以及太阳辐射强度的变化情况、室内温度在集热蓄热墙体作用下的波动情况以及在不同天气情况下 Trombe墙对室内温度的影响。

The experiments were carried out on a new passive solar test cell. Much data such as indoor and outdoor temperature, the solar radiation, the core and surface temperature of Trombe wall, the temperature and velocity of vent airflow were recorded every ten minutes and saved in computer by a computerized data-logger device. Based on these data, this paper analyzed thermal performance of passive solar house under different weather situations. Meanwhile the effect of Trombe wall on the indoor thermal environment in heating season was also examined.

本研究在新建成的被动式太阳房内，利用多通道计算机巡回检测系统，对室内外温度、太阳辐射强度、集热蓄热墙体温度以及通风口风速、温度进行了长期实测，研究含有Trombe墙体的新建被动式太阳房采暖季节的热性能，采暖季节的室内温度随室外气象条件以及太阳辐射强度的变化情况、室内温度在集热蓄热墙体作用下的波动情况以及在不同天气情况下Trombe墙对室内温度的影响。

During the study period, we found that plants were present only in natural creek banks, but not altered ones. Comparisons between natural banks without plants and altered banks revealed no significant difference in both shrimp abundance and distribution. However, there was significant difference in shrimp abundance when natural banks with plants and altered banks were compared, suggesting that construction might have negative effects on plants and, in turm, on shrimp abudance. Comparisons between reproductive and non-reproductive season yielded significant results in both shrimp abundance and distribution, which resulted from the recruitment of juveniles to local populations.

在实验期间，自然河段有水蕴草而整治河段没有水蕴草的存在，比较无水蕴草的自然河段与整治河段，发现无论是数量或出现率都没有显著差异，然而，在有水蕴草存在的自然河段之多齿新米虾数量与出现率则较整治河段高，显示哈盆溪可能因为整治工程影响了底质的型态，导致水蕴草不易生长，进而影响多齿新米虾的数量及出现率；在季节方面，结果显示，不同季节在数量和出现率上都有显著差异，而此差异是因为幼虾在生殖季大量加入族群所致。

CH4 uptake, N2O and CO2 emission, have their own relatively fixed seasonal variation patterns in the ungrazed and the grazed grasslands.

禁牧草原及放牧草原吸收CH4、排放N2O和CO2各自有其相对固定的季节变化形式，草原和大气交换温室气体通量的季节变化形式主要受年度气候变化所控制，而土壤、植被类型、降雨量等禁牧因素和放牧强度等人为因素仅影响排放强度。

Seasonal variation of the distributions of microorganism in the root-zones of wetland plants (Phragmites australis, Zizania latifolia, Zizania latifolia etc.), the substrate layers of control SSPs, together with the effects of wastewater treatment were studied. The results are as follows: the numbers of microorganisms in the different plant root-zones were different; the purification effects were also different. The number of microorganisms in the substrate of the control plot becomes smaller with increasing depth. The numbers of bacteria in fall were higher than those in the summer for the three plant zones and the control, and the number of fungi and actinomyces in summer was much higher than that in the fall for control. As for fungi and actinomyces in the experimental systems, most of their difference between the summer and fall were not as big as that in the control.

通过对不同季节芦苇、茭白和香蒲等湿地系统植物根区、无植物对照基质微生物分布状况以及净化效果的研究，结果显示：（1）种植不同植物的湿地系统根区微生物数量不同，其湿地净化效果也不同；（2）对照系统微生物的数量随基质深度的增加而递减；（3）季节变化显示湿地系统秋季的细菌总数量比夏季高；但对照系统夏季的真菌和放线菌数量明显高于秋季；（4）湿地系统TP的去除率夏季高于秋季。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。