华北板块东南缘五河杂岩属于前寒武纪变质基底，出露于蚌埠及相邻地区，主要由变质的镁铁质和长英质火成岩以及表壳岩系组成，并伴生有古元古代片麻状花岗岩和中生代花岗岩类，构成了“蚌埠隆起”。五河杂岩中主要有石榴斜长角闪岩/榴闪岩、石榴麻粒岩、异剥钙榴岩、石榴斜长角闪片麻岩、花岗片麻岩、云母片岩、大理岩和变质砂岩等岩石类型。这些不同类型的变质岩具有类似的峰期变质矿物，如石榴子石、单斜辉石、斜长石、金红石和石英等；结合其锆石U-Pb年龄，表明它们共同经历了古元古代高压麻粒岩相变质作用。石榴斜长角闪岩的石榴子石包体中存在钾长石＋斜长石＋石英＋黑云母等矿物交生体，指示早期花岗质熔体的存在，证明五河杂岩在古元代变质过程中发生了部分熔融作用。此外，部分变基性岩中存在方解石、绿帘石和绿泥石等蚀变矿物，沿石榴子石的裂隙中分布有钾长石＋斜长石＋石英＋黑云母＋角闪石等矿物，表明它们经历了含碳酸盐的熔/流体交代作用以及绿帘石化和绿泥石化作用等。遭受过古元古代含碳酸盐的熔/流体交代作用的变基性岩表现为高放射成因Pb同位素组成，而未遭受含碳酸盐的熔/流体交代作用的变基性岩则表现为典型华北板块前寒武纪麻粒岩地体和下地壳包体岩石的低放射成因Pb同位素组成。

The Wuhe complex is located at the southeastern margin of the North China Block and belongs to the Precambrian metamorphic basement.It is exposed in the Bengbu area and its neighbourhood.The Wuhe complex consists of the metamorphosed igneous mafic and felsic rocks and supracrustal rocks associated with the Paleoproterozoic foliated K-feldspar granites and Mesozoic granitoids,constituting the “Bengbu uplift”.Its main rock types comprise a variety of lithologies, including garnet amphibolite, garnet granulite, rodingite, garnet-plagioclase-amphibolite gneiss,granitoid gneiss,micaschist,marble,quartzite and meta-sandstone.These rocks contain similar peak metamorphic minerals such as garnet,clinopyroxene,plagioclase, rutile and quartz.As a result,combined with their zircon U-Pb ages,it is suggested that they suffer from a common high pressure granulite facies metamorphism in Palaeoproterozoic.The multiphase solid inclusions within garnet porphyroblasts are discovered from the g

五河方言“给”字句可表达“给予”“处置”等义。文章从动词“给”、介词“给”、连词“给”、助词“给”等四个方面探讨五河方言“给”字句的用法及特点，总结五河方言“给”的语法化路径，为五河方言的进一步研究提供材料支持。

The“ Gei”word sentence can express administer,disposition etc. This paper discusses the usage and characteristics of“gei”from such perspectives of“gei”as a preposition,“gei”as a verb,“gei”as a Preposition etc. It summarizes the grammaticalization approach to Wuhe dialect“gei”,provide material support for Wuhe dialect further research.

五河方言中的合音词有四种构成类型,其中以动词类和代词类合音词为主。通过对每个合音词的来源和用法的具体描写,为进一步了解五河方言中合音词的特点及形成规律提供一定的材料支持。

There are four formation types of syllable combined with two syllables in Wuhe dialect,in which the priority is given to verbs and pronouns. This paper describes the syllable combined with two syllables on sources and usage,providing material support for syl-lable combined with two syllables in the further research of Wuhe dialect.

河流碳输出过程构成全球碳循环的一个重要环节。基于一个完整水文年的月周期性采样分析,讨论了五华河径流中悬浮颗粒有机质(POM)的性质及其来源,估算了流域有机质的输出通量。结果表明:五华河径流中颗粒有机碳(POC)和颗粒有机氮(PON)的平均含量分别为0.77 mg/L和0.12 mg/L,其中汛期含量高于枯水期;五华河河流总悬浮颗粒物(TSS)、POC、PON含量以及河流颗粒有机质C/N比与流量的关系揭示五华河径流中POM主要源自流域土壤有机质的侵蚀,而且在迁移过程中受到水体微生物的分解;五华河流域POC和PON年输出通量分别为430 kg/(km2·a)和70 kg/(km2·a),其中汛期POC和PON输出量分别占全年输出总量的74.23%和76.17%。

Carbon transportation by river system constitutes a key link of the global carbon cycle .Based on monthly sampling and analysis of riverine particulate organic matter for a full hydrological year in the Wuhua River, eastern Guangdong Province , the characteristics and sources of particulate organic matter in the river were discussed and carbon transport fluxes were estimated .The results show that the average contents of particulate organic carbon (POC) and particulate organic nitrogen (PON) in the Wuhua Riv-er are 0.77 mg/L and 0.12 mg/L, respectively, which are much higher during the flood season than those during the dry season.The relationships between discharge and the TSS , POC, PON contents, and the ratio of C to N reveal that the POM of the Wuhua River is mainly from soil organic matter within the drainage basin, which is decomposed by microorganisms during transportation .POC and PON fluxes ex-ported by the Wuhua River are 430 kg/(km 2.a) and 70 kg/(km 2.a), respectively.The o

以沁河下游河道采砂、河势、实测断面等资料为基础，分析采砂对河道的影响，研究与河道治理相结合的采砂方案和基于采砂控制的畸形河势治理措施。结果表明：受采砂影响，现状水平设防水位与1982年实测值相比，五龙口至丹河口河段水位平均偏低约3．12 m，丹河口至徐堡河段水位平均偏低约1．69 m；沁河下游河道治理流量采用600 m^3／s较为合适，与之相适应的河道横断面采砂宽度丹河口以上为250 m，丹河口—石荆桥河段为300 m，河道平均采砂深度按3 m控制，五龙口—石荆桥河段可开采砂总量约为850万m^3；基于采砂控制的畸形河势治理措施能够逐步改善、消除畸形河势，改变沁河下游洪水期被动抢险的局面。

On the basis of sand excavation,river regime and measured profile data in the lower Qinhe River,the effect of sand excavation on the channel was analyzed. The sand excavation scheme combining with river training and measures control of abnormal river regime caused by sand ex-cavation was presented in this paper. Study results show that with the influence of sand excavation,the current designed water level comparing with measured value averagely decreases 3. 12m from Wulongkou to Danhekou and 1. 69m from Danhekou to Xubao;the river training discharge is suit-able for 600 m3/s in the lower Qinhe River,while the sand excavation width in corresponding cross-section is 250m above Danhekou and 300m from Danhekou to Shijingqiao,and the average sand excavation depth is controlled in 3m and the total quantity of sand excavation is 8. 5 million m3 from Wolongkou to Shijingqiao;measures for abnormal river regime based sand excavation control may be improved gradually,and abnormal river