历史文化名村的保护与开发--以苏州市明月湾古村为例

明月湾是苏州市首批公布保护的古村落,是首批国家级历史文化名村之一。由于保护意识淡薄,明月湾古村一度遭到较为严重的破坏。笔者介绍了历史文化名村的相关概念及其保护对象,纵观明月湾古村的保护与开发现状,从文化遗产的角度对明月湾古村近年来的保护与开发状况进行了分析,认为明月湾古村存在保护与开发体系不完善,村民保护意识不足,部分文化遗产保护状况欠佳,并且古村开发过度、文化特色缺失等问题。笔者据此提出相关建议,强调完善历史文化名村保护体系,实施多层次、分类保护,加强宣传教育,规范管理并进行合理开发。     

月饼中安赛蜜、糖精钠、苯甲酸、山梨酸、脱氢乙酸检测方法的研究

建立了反相高效液相色谱法同时测定月饼中安赛蜜、糖精钠、苯甲酸、山梨酸、脱氢乙酸的检测技术。实验采用AQ-C18色谱柱(250 mm×4.6 mm),以0.02 mol/L的乙酸铵-甲醇(90∶10)为流动相,柱温25℃,二极管阵列检测器在波长23 0 nm处进行检测。整个分离过程在1 4m in内完成。上述5种物质的回收率为9 6.8%~1 0 2.1%,相对标准偏差小于1.21%。方法快速准确,适用于月饼的常规检测。     

榕江月亮山植物群落的特征及多样性

榕江月亮山位于榕江县西南部,保存有大面积的原生林,是榕江县境内生物多样性最特殊、最丰富、最敏感的区域.为了能直观地反映该区群落生态的实际状况,引起有关部门的重视,以榕江月亮山的植物群落为研究对象,应用样方调查方法,对该区域的植物群落物种组成、群落结构、特征、区系以及生物多样性进行了系统研究.结果表明:1)共记录维管植物387种,隶属于101科243属,生活型谱以高位芽植物为主;2)该区种子植物区系地理成分复杂,属的分布类型有22个,以温带分布型为主,同时东亚特有和中国特有占很大的比例,表现了属的地理分布类型多样性和特有现象并存的特征;3)群落垂直结构明显,分为乔木层、灌木层和草本层3个层次;4)不同群落类型不同层次的物种多样性指数差异性不明显,表现出群落结构越复杂、物种组成越丰富、优势种越不明显、共优种越多,物种多样性指数越高.     

月柿高产栽培管理技术

恭城月柿果肉脆嫩、清甜爽口，富含人体所需的高蛋白质和各种维生素。栽培月柿市场潜力大，发展前景十分广阔。本文介绍月柿栽培管理中的水肥管理、保花保果、病虫害防治的关键技术，旨在为农户提供技术参考。     

伴月湾·山海名宅景观规划设计

威海市半月湾住宅区位于威海东北海岸,拥有得天独厚的"山海"自然景观资源。本案把"月"物化为湾,使"湾"的概念特征成为半月湾小区的一个重要标志。依据当地的自然气候特征和原有的地形地貌,结合对建筑形体、高差分区控制及视觉层次的设计,形成相互之间干扰最小的梯度变化的景观结构。     

武汉月湖沉积物中硅藻的垂直分布与水质变化

采用活塞取样器采集了月湖湖中央2处钻孔沉积物,分析了其中硅藻种类与密度的垂直变化,同时采用^210Pb/^137Cs推测沉积物的沉积速率,关进行了总有机质．生物硅含量分析,以了解月湖各个不同年代的水质变化。结果表明,2个柱状沉积物中硅藻的优势属为：小环藻属、直链藻属、舟形藻属、Cyclostephanos属。Z－1钻孔优势种为：梅尼小环藻、颗粒直链藻、Navicuta porifera、Cyclostephanos tholifomis. Z-2钻孔中优势种为：梅尼小环藻、颗粒直链藻、舟形藻、Cyclostephanos invisitatus。就硅藻密度而言,总趋势是上层最多,平均7．14×10^5～58．65×10^5ind·g^-1,中层其次,平均0．08×10^5-13．98×10^5ind·g^-1,下层最少,平均0．24×10^5-0．64×10^5ind·g^-1.硅藻种类数变化虽然没有明显规律,但种类最少的样品出现在中层,^210Pb/^137Cs测年数据表明中层为19世纪90年代－20世纪70年代。相天分析表明：Z－1孔生物硅与沉积硅藻密度显著正相关（r=0．933,P=0．021〈0．05）,总有机质含量与种类数显著负相关（r=－0．972,P=0．005〈0．05）;Z－2孔生物硅与沉积硅藻密度显著正相关（r=0．985,P=0．002〈0．05）,沉积硅藻密度与种类数显著负相关（r＝－0．933,P=-0．021〈0．05）。研究结果表明,月湖沉积物中硅藻种类与密度的垂直变化可以反映月湖的富营养演化历程：19世纪60年代－19世纪80年代,月湖水质较好;19世纪90年代－20世纪10年代,月湖开始由贫营养状态向中营养状态转变,为水体富营养化开始发生时间;20世纪20年代－20世纪40年代,月湖水体营养等级持续增加,已富营养化;20世纪50年代－20世纪70年代,周边人口数量急刷上升与污水的直接排放导致月湖水质持续恶化;20世纪80年代至月湖截污前这段时期使月湖最终沦为劣五类水体的湖泊。     

Morphological variation of star dune and implications for dune management: a case study at the Crescent Moon Spring scenic spot of Dunhuang,China

Aerial photographs and 3-D laser scans of a 90-m high star dune at the Crescent Moon Spring scenic spot in Dunhuang, China, are used to investigate the changes in dune morphology on timescales from months to decades. The result revealed that relative-equilibrium airflow strength in three wind directions of northeast, west and south was an important condition for the stability of star dunes with limited migration. Transverse and longitudinal airflows exerted a crucial impact on variation processes of star dune morphology. Controlled by transverse airflows, the easterly winds, the east side was dominated by wind erosion; and strong deposition occurred on the south-south-east arm with a maximum deposition rate of 0.44 m/a in the 46-a monitoring period, causing the east side becoming steep and high. Controlled by longitudinal airflows, the westerly winds, the west-north-west side was mainly eroded and the north arm migrated from west to east with a rate of 0.30 m/a, causing the dune slope becoming gentle and elongate. The local air circulation(southerly winds) exerted a significant impact on the development process of the star dune. Due to the influence of human activities, the south side present surface processes from a concave profile to a convex profile in 46 a, which is a potential threat to the Crescent Moon Spring. The results indicate that rehabilitating the airflow field at most is a crucial strategy to the protection of Crescent Moon Spring from burial. Opening up the passage of easterly, westerly and southerly winds through intermediately cutting the protection forest, demolishing the enclosed wall and changing the pavilion into a porous pattern have been suggested to protect the Crescent Moon Spring from burial.     

Quantitative analysis on the dynamic characteristics of megadunes around the Crescent Moon Spring,China

The Crescent Moon Spring is a precious natural heritage. However, the dynamic characteristics of megadunes around the Crescent Moon Spring are not well known. This paper quantitatively studied the character- istics and changes of megadunes around the Crescent Moon Spring by interpreting aerial photographs taken in 1985 and 2004 and analysing the dune crestlines and the wind data collected from 2011 to 2012. Results revealed that pyramid dunes were formed by a complex wind regime. The Crescent Moon Spring was not buried by shifting sands because of the stable wind regime and relative stability of pyramid dunes. The crestlines of the dunes around the spring moved northward between 1985 and 2004. The south-facing slip faces were also exposed to wind ero- sion, whereas the other faces were under deposition, thus indicating that the southerly wind was relatively en- hanced. Limiting the scale of tall windbreaks and architectures in the Dunhuang oasis at the north of the spring was necessary to maintain the dynamic equilibrium of the wind regime and sand transport.     

贵州月亮山自然保护区昆虫初步名录

贵州月亮山自然保护区位于从江、荔波、榕江和三都4县交界处，地理位置为东经108^o13＇～108^o19’，北纬25^o34’～25^o39’，属于中亚热带过渡到北亚热带的湿润季风山地气候，年均温15．7～12．1℃，年均降水量1030．2～1688．2mm，最高海拔1508m，最低海拔440m。植被为常绿阔叶林，因地势抬升而造成生物气候变异在海拔1100m以上为常绿落叶阔叶混交林，