中文摘要：

基于顺序的抽取和 X 光检查粉末衍射(XRD ) 的技术，磷种形成的分发特征从为有典型 karstic 石灰石环境的 Guiyang 的一个重要喝酒水消息提供者洪芬湖在 13 件沉积样品被调查。在沉积的全部的磷(TP ) 集中与 1635.87 mg/kg (干燥重量) 的吝啬的集中从 973.36 ～ 2334.18 mg/kg ，并且在沉积的磷水平与象乔胡湖和克西胡湖那样的另外的发育营养正常促进剂湖相比高，是明显的。二个方法，顺序的抽取和 XRD 的结果，在湖沉积表明了不同的磷种类的存在。与本地地球物理的特征兼容，顺序的抽取技术的结果显示溶解的磷( DP )的平均百分比，铝界限磷(高山)，包铁的磷( Fe-P )，钙界限磷(帽子)和在沉积的器官的磷( OP )是0.40%，7.06%，5.07%，45.48%和38.49%分别地。尤其是，无机的磷(IP ) 的集中比 OP 的那些高，并且 IP 首先由帽子组成了。因为它是，帽子的高集中可以暂时从沉积控制磷的版本一相对稳定，惰性并且 non-bioavailable 磷部分。XRD 分析的结果显示在磷种类之中， AlPO4 在相对高的集中在所有沉积样品被发现。而且，在沉积的 TP 集中高；因此在沉积的磷的版本潜力和 bioavailability 是重要的。结果的进一步统计的分析与二个可引出的主要部件和磷装载和磷种类的转变机制的可能的起源的四个可选的簇层次允许解释在沉积揭示了在磷种类之间的重要关联。而且，当考虑它的不同环境特征时，可得到的补习措施简短为湖被估计。

英文摘要：

Based on the techniques of sequential extraction and X-ray powder diffraction（XRD） ,the distribution characteristics of phosphorus speciation were investigated in 13 sediment samples from Lake Hongfeng,an important drinking water source for Guiyang with a typical karstic limestone environment.The total phosphorus（TP） concentrations in the sediments ranged from 973.36 to 2334.18 mg/kg with a mean concentration of 1635.87 mg/kg（dry weight） ,and it was evident that the phosphorus level in the sediments was high compared with other eutrophic lakes such as Lake Chaohu and Lake Xihu.The results of the two methods,sequential extraction and XRD,demonstrated the presence of different phosphorus species in the lake sediments.Being compatible with local geophysical characteristics,the results of sequential extraction techniques indicate that the average percentages of dissolved phosphorus（DP） ,aluminum-bound phosphorus（Al–P） ,iron-bound phosphorus（Fe–P） ,calcium-bound phosphorus（Ca–P） and organic phosphorus（OP） in the sediments were 0.40%,7.06%,5.07%,45.48%and 38.49%,respectively.Notably,the concentrations of inorganic phosphorus（IP） were higher than those of OP,and the IP consisted primarily of Ca–P.The high concentrations of Ca–P may temporarily control the release of phosphorus from the sediments because it is a relatively stable,inert and non-bioavailable phosphorus fraction.The results of XRD analysis indicated that,among phosphorus species,AlPO4 was found in all sediment samples at relatively high concentrations.Moreover,the TP concentrations in the sediments were high;thus the release potential and bioavailability of phosphorus in the sediments was important.Further statistical analyses of the results revealed significant correlations between phosphorus species in the sediments with two extractable principal components and four selectable cluster levels allowing interpretation of possible origins of phosphorus loading and transformation mechanisms of phosphorus species.Fu