夏季

Variation of important value of dominant weed is that in spring and fall the dominant weed is Viola prionantha while in summer it is Digitaria ischaemum. In general management lawn community it is Leymus secalinus that is the dominant weed in spring and fall and Digitaria ischaemum in summer.

管理水平较差的草坪群落中，春季和秋季是早开堇菜占优势，夏季是止血马唐占优势；管理水平一般的草坪群落中春、秋季节是赖草占优势，夏季也是止血马唐占优势；管理水平较好的草坪群落中整个生长季是鼠掌老鹳草、鹅绒委陵菜、赖草占优势，且以鼠掌老鹳草的优势度最大。

With statistical method,the high temperature in all area of Shandong province is analyzed.The results indicate that there is apparent interdecadal variation for the estival hot days and the extreme high te...

利用统计方法分析山东省各地高温多年变化特征，发现夏季高温日数和极端最高气温均存在明显的年代际变化，且东西部变化不尽相同；在60年代末70年代初全省夏季极端最高气温发生了一次转折性变化。

Compared the spacial features for the estival extreme high temperature and the hot days in Shandong Province from 1961 to 1990 with that from 1971 to 2000,it indicates that there is evident regional difference for the Climatic change of it,the hot days in the eastern increased but decreased in the western.

对比分析山东省夏季1961～1990年和1971～2000年前后30年极端最高气温和高温日数的分布和变化，得知山东省夏季高温的气候变化存在明显的地域性差异，东部地区高温有所增多，西部地区明显减少。

By simulating river plume evolution under the combined action of tide and estival wind field averaged over many years, it is found that the modeled salinity distribution is consistent with observed rather well, which means river plume development plays an important role in adjusting the salinity distribution in surface layer of Bohai Sea.

通过检验河流羽流在潮汐和渤海夏季多年平均风场共同作用下的发展特征，发现计算得到的表层海水盐度分布与实测值相当吻合，因此可以认为河流羽流发展对于渤海夏季盐度分布起着重要作用。

By simulating river plume evolution under the combined action of tide and estival wind field averaged over many years, we have found that the modeled salinity distribution is consistent with the observed one rather well, which means the river plume develo

通过检验河流羽流在潮汐和渤海夏季多年平均风场共同作用下的发展特征，发现计算得到的表层海水盐度分布与实测值相当吻合，因此可以认为河流羽流发展对于渤海夏季盐度分布起着重要作用。

Bieti lost its habitat continuously in recently decades associated with the extension of rangelands and farmlands, as well as firewood collection etc. The monkey live mainly in primary fir forest and the mixed conifer forest, to evaluate the status of the monkeys' habitat, we employed GIS and RS software to identify the habitat types with five Landsat TM/ETM+ satellite imagery in winter of 1986, 1992, 1997, 2001 and 2006 years respectively. The work resulted in: 1 the size of summer grazing lands, farmlands, and fir forest was 13 100 hm2, 6 400 hm2, and 30 500 hm2 in 2006 respectively; 2 during the past 20 years (1986-2006), the size of fir forest (including primary fir forest and the mixed conifer forest) decreased by 14.6%(5 200 hm2), summer grazing lands and farmlands increased by 47.2%(4 200 hm2) and 14.3％(800 hm2) respectively; and 3, during the past 20 years, the number of firry forest patches increased by 68.4%, the mean size of firry forest patches decreased by 49.3%(from 15.1 to7.6 hm2), the largest patch index of firry forest decreased 54.9%; the patch richness had no change, but the Shannon's diversity index and the Shannon's evenness index increased by 2.7% respectively.

为了评估该物种的栖息地现状和变化情况，我们通过野外调查工作，应用GIS和RS技术，分别解译了1986年、1992年、1997年、2001年和2006年的Landsat TM/ETM+冬季卫星影像，并对解译结果进行了计算和分析，得到了以下西藏种群栖息地的主要结果：1）现有暗针叶林（包括原始针叶林和针阔混交林）面积是30 500 hm2，夏季牧场面积是13 100 hm2，农田面积是6 400 hm2；2）在过去20年间（1986-2006年），暗针叶林面积减少了14.6％（5 200 hm2），夏季牧场面积增加了47.2％（4 200 hm2），农田面积增加了14.3％（800 hm2）；3）在过去20年间，暗针叶林的斑块数量增加了68.4％，平均斑块面积下降了49.3％（从1986年的15.1 hm2下降到2006年的7.6 hm2），最大的斑块指数下降了54.9％；景观丰富度并没有变化，但Shannon多样性指数和Shannon均匀度指数分别增加了2.7％。

Year hindcast experiments (1983-2002) and 5-year forecasts of summer average temperature and rainfall over China are presented by using regional climate model that is a nested global atmosphere ocean coupled model.

使用国家气候中心全球海气耦合模式嵌套区域气候模式对1983-2002年中国夏季平均气温和降水进行了数值回报试验，并对2003-2007年夏季进行实时预报。

The caloric values and ash contents of some mangrove woods in Dongzhai Harbor Mangrove Forest Reserve of Hainan Province were determined in Summer,and the changes of the caloric value of Kandelia candel woods at different latitudes were studied.

在夏季对海南东寨港红树林自然保护区一些红树植物木材的灰分含量和热值进行了测定，并研究了夏季不同纬度的秋茄木材热值的变化。

Based on the 1950-1998 SST and NCEP/NCAR reanalysis data, the temporal/spatial variations of SSTA in the Western Pacific Warm Pool region have been analyzed in this paper by means of the methods of EOF and composite analysis. Results show that there are two main spatial patterns of the WP SSTA: one is uniform in the whole region, the other is meridionally anti-symmetric.

采用海温资料和NCEP/NCAR 49a再分析的高度场、风场资料，利用EOF、合成分析方法，研究了夏季暖池SSTA的时空演变，结果显示：夏季暖池SSTA具有整体一致性分布和南北区域的反对称分布两种空间分布型。

By comparing different processes in the same period, following operting modeof interactive reactor was recommend: enhanced A~2/O process fits on spring period,pre-anoxic inverted A~2/O process was recommend in dry/mizzle weather in summerperiod, step aeration process was adopted in rainy weather in summer period,alternating oxygen concentration inverted A~2/O process was appropriate in autumnperiod, and normal inverted A~2/O process was better in winter period.

通过不同季节多种工艺的比较，确定了高效生物反应器运行模式：春季时段采用改良型A~2／O工艺，夏季晴天／小雨时段采用预缺氧+倒置A~2／O工艺，夏季连续暴雨时段采用多点进水工艺，秋季时段采用低氧／常氧交替运行的倒置A~2／O工艺，冬季时段采用常规倒置A~2／O工艺。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。