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Because of the regional difference of soil and climatic conditions, the division of 4 stages of soil moisture circulation is not all the same between different areas; the soil moisture dynamics between different dry farming areas in the Yellow River Basin is contrasted in this report. The results indicate that soil moisture increases gradually from dry semi-arid area to semi-arid area, dry semi-humid area and semi-humid area, and the high value district generally appears during soil moisture resuming period in rainy season or soil melting period. While the low value district appears at the stage of fast evaporation in spring or slow evaporation in autumn; in views of vertical changes of soil moisture, it is showed that the variation range of upper lays is larger than that of lower among the different dry farming areas in the Yellow River Basin.

由于各域之间土壤、气候条件的差异,各地土壤水分循环4个阶段的划分也不尽相同;黄河流域不同旱作类型土壤水分动态变化比较结果表明:就季节变化而言(来源:A70b0B0bC论文网www.abclunwen.com),由半干旱偏旱→半干旱→半湿润偏旱→半湿润土壤水分含量呈逐渐增加的变化趋势,而且高值一般出现在雨季恢复阶段或春季土壤融冻返浆时期;而低值均出现在春季大量蒸发阶段或秋季缓慢蒸发阶段;就垂直变化而言,黄河流域不同旱作类型土壤水分垂直变化的趋势均表现为上层变化幅度较下层大。

Distribution region of EDZ and mechanical behaviors of rock mass are further evaluated by using damage model, and the result shows that damage variable is 0.6-0.8 for damaged zone, 0.4-0.6 for affected zone and 0.2-0.4 for slight affected zone. Finally, the slope excavation softening factor is introduced to Hoek-Brown empirical strength criterion, based on the deficiencies of using Geological Strength Index to estimate the rock mass mechanical parameter of EDZ.

对应实测开挖扰动的分布范围和形状,可以近似确定开挖损伤岩体的损伤值约在0.6~0.8以内,卸荷影响岩体的损伤值约在0.4~0.6以内,轻微扰动岩体的损伤值约在0.2~0.4以内;由此基于Hoek-Brown经验强度准则,引入开挖弱化因子,结合地质强度指标GSI,进行开挖扰动岩体力学参数研究。

The sixth part: Studies on the dynamic changes of soil retention function value of ecosystem in YUYANG District. Utilized ERDAS8. 5 to interpret the remote sensing image and get LUCC data and vegetation information of YUYANG District. Utilized R2V5. 5 to digitize administrative map, topographic map, vegetation picture, soil distribution map and meteorological website map. Utilized ARCINFOR8. 3 to change every digitization layer to the same projection, to generate Tyson polygon, to structure DEM and do vector polygon overlay. Utilized ARC VIE W3. 3 to obtain the grid data topographic slope and slope length from DEM data of YUYANG District, and then, turned every coverage layer into grid layer and do grid polygon overlay to gain data about dynamic changes of value of soil retention of ecosystem in YUYANG District, at last, the author analyzed the features of the spatial-temporal changes and its reason.The seventh part: Studies on the dynamic changes of fixing drifting sand against wind function value of ecosystem in YUYANG District.

第六部分:榆阳生态系统土壤保持功能价值动态变化研究;利用ERDAS8.5对遥感数据进行解译获得榆阳土地利用数据和植被信息,利用R2V5.5数字化榆阳图、地形图、植被图、土壤分布图及气象站点分布图,利用ARCINFOR8.3对各数字化图层进行投影转换、泰森多边形生成、DEM构建和叠加分析,利用ARCVIEW3.3从DEM数据中获取榆阳的坡度、坡长面域数据,并将上述各图层格网化,然后通过栅格图层叠加分析和代数运算获取榆阳生态系统土壤保持功能物质量和价值量时空动态变化数据,最后分析了其变化的时空特点及形成原因。

In Huang-Huai-Hai region, the focus was to strengthen the cultivation and management to reduce yield gap between test and field production, because there were a high scientific and technological level but shortage of water, etc. In middle and lower reaches of the Yangtze River region, the focus was to strengthen the ability of drainage and avoided water-logging etc. In north-eastern region, the focus was to avoid drought and high-temperature damage, sometimes spike-sprouting caused by rain pre-harvest.

黄淮海优势灌溉水短缺,干旱、干热风等自然灾害频发,但小麦科技实力较强,育种和栽培研究水平相对较高,要加强栽培管理缩小试验地产量与大田产量的差距;长江中下游小麦优势排涝和降渍能力比较弱,渍害、穗发芽时有发生;东北小麦优势干旱和高温频发、收获前常遇阴雨导致穗发芽;西北小麦优势土壤瘠薄、干旱少雨;西南小麦优势日照不足、雨多雾大晴天少,易旱易涝等。

The angiospermae flora of Dongjiang valley is analyzed, including the geographical distribution pattern, the same and difference between the flora of Dongjiang and other floras, then the origination of flora of Dognjiang and the boundaties are discussed, finally the vegetative types of it were also described.

本文为广东省东江流域的植物系分析,全文分析了东江流域植物系成分的地理分布类型,阐述了该系与不同地植物系的异同与联系,探讨了东江流域植物系的起源和系的地理归属问题,并对东江流域的植被类型作了概述。

The survey about employing insecticide in zone of releasing Aphidius gifuensis and convention field show that: Agricultural chemicals employment number of times reduce 1.22 and average employment amount reduced 40%.

对放蜂和常规施药防治内烟农施用杀虫剂情况的调查表明,在放蜂施用杀虫剂的平均次数为1.83次,而常规施药防治为3.05次,放蜂的施药次数比常规防治减少40%。

Results In all 12 normal children, the blood oxygen level-dependent signal was negative, and the maximum response appeared to be located in the anterior and superior part of the calcarine fissure, which may correspond to the anterior region of the primary visual cortex. However, in 24 cases of PVL, no activated pixels in PVC in 4; weak and tiny activation in 6; deviated activation in 8; and both tiny and deviated activation in 3 cases.

结果:正常对照组的激活位于原始视觉,BOLD信号变化均为负值,在24名PVL患儿中,枕叶平均激活像素数目减少,4例在PVC没有激活,6例激活体积明显减小,7例激活易位,另有3例激活明显减小并易位。

A total of 19,781 insect individuals belonging to 959 morphospecies, 145 families and 15 orders were collected. The most abundant orders were Diptera (69.68%), Homoptera (11.19%) and Hymenoptera (10.10%). At the family level, Chironomidae (17.67%), Mycetophilidae (12.32%), Cicadellidae (8.32%), Ceratopogonidae (7.56%), Sciaridae (7.39%) and Cecidomyiidae (5.81%) were the most abundant taxa. Although there were little differences in similarity among the three sampling plots, the dominant orders and families in theses plots differed. The meadow had the highest diversity while the spruce forest had the lowest diversity.

结果:三样共采集到19,781只昆虫,分属15目、145科、959个形态种;各目的组成百分比,以双翅目(69.68%)、同翅目(11.19%)及膜翅目(10.10%)最为优势;在科的类阶,则是以摇蚊科(17.67%)、蕈蚋科(12.32%)、叶蝉科(8.32%)、糠蚊科(7.56%)、黑翅蕈蚋科(7.39%)及瘿蚋科(5.81%)为优势类群;三个样的相似度差异不大,但是优势类群则不相同;无论丰度、均匀度及多样性指标,箭竹草原样均高过於云杉林样及铁杉林样

TPH gene contains a chort of variants, these polymorphisms distribute promoter upstream, intonlB、 1C、7、8and 9, in addition to a microsatellite repeat at 3' downstream.

TPH基因存在多个变异点且具有遗传多态性,这些多态位点分别位于上游启动、内含子1B、1C、内含子7、内含子8及内含子9,在下游3'亦有一微卫星重复序列。

The main characteristics include: the quiet Sun corona has a rapid response to the flare heating, within 2 second the corona temperature increases nearly one order of magnitude, but later such increase becomes very slowly; the downward velocity at early stage of impulsive phase is too small to be negnected; chromospheric evaporation made by conduction shows some intensely, the maximum evaporated velocity may be as large as 1000 km/s; the chromospheric condensation appears just when the chromospheric evaporation takes place and its place always coincide with that of transition region in the early stage; the maximum of chromospheric condensation occurs also in the early stage of impulsive phase, at which the density in condensation may be larger two order of magnitude than that of surround and the downward velocity may be as large as 100 km/s; after the maximum of chromospheric condensation, its strongth decreases gradually but its width becomes greater with time and have a tendency to transport into deep chromosphere; the front of chromospheric condensation heats atmosphere obviously and the temperature in the chromospheric condensation is higher than the original case; the downware velocity of transition region may be greater than 100 km/s at the early stage; when the evaporated material collide at the top of loop, the densityand the presure there increase rapidly, which result in the formation of a shock wave; and so on.

在改善色球辐射损失和精确分辨过渡的基础上,通过联立求解连续性方程、动量方程和能量方程,构造了一维磁限制性耀斑环在热沉积作用下的大气动力学模型,获得了耀斑热模型下脉冲相早期较为细致的大气演化理论图象,其主要特征是:耀斑对宁静日冕的加热相当迅速,仅2秒钟日冕温度增加即达一个量级,之后日冕温度增加缓慢;脉冲相早期日冕向下速度很小,几乎可以忽略,热传导驱动色球蒸发,其过程较为激烈,蒸发极大速度可达到1000km/s;色球压缩与色球蒸发几乎同时形成,且在早期其位置总是与过渡位置重合;色球压缩极大发生在脉冲相早期,其时密度可高于周围约2个量级,向下速度可超过100km/s;色球压缩极大后,其强度逐渐减弱,但宽度明显增大,且渐渐脱离过渡往色球传播;压缩内物质温度要高于原先的大气温度;过渡下降在脉冲相早期相当迅速,可超过100km/s;当蒸发物质在环顶高速相碰时,环顶的密度、压力迅速增大,且温度也有所增加,导致形成激波,其波面以每秒上百公里的速度自环顶向下传播;在脉冲相前期,日冕软x辐射对色球的加热作用可以忽略;等。

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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

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