‘万维1号’是从美国夏威夷大岛引种,采用选择育种方法经选株、选果、选种、选苗、实生苗繁殖测定和区域化试验选育而成,具有早产、高产、稳产、优质、抗递性强等特性。适于在海南岛的南部和西部、永兴岛等偏热带地区尤其是海岸线盐碱地区营建果园兼海防林,生产果实供食品加工。

Noni“Wanwei No. 1”of noni that was introduced from the Big Island of Hawaii,USA and has been selected through series of selective breeding measures including seedling propagation and regional screening to select for superior growth,excellent fruition,strong resistant to diseases and wind,and well-adapted to new climate conditions. It has such bears the desired features of early maturity,high fruit yield with large fruits and high quality,and resilience to harsh growth condition; thus it is especially suitable for growing in tropical region of south and west of Hainan island and Yongxing Island,along the shoreline and coastal saline areas both as windbreaks and orchard. The fruits can be processed as healthy supplement.

淡水透镜体是珊瑚礁岛屿上重要的地下淡水资源，对于满足人们的日常生活需要和维护珊瑚礁岛屿的生态系统非常关键。文章回顾了国内外珊瑚礁岛屿淡水透镜体的研究历程，介绍了它的理论和特征，综述了其发育和演化与岛屿的水文地质、气候、潮汐、地形和植被等的关系。另外，自然压力，诸如干旱、海水入侵、海平面升高和岛的机械侵蚀等，以及人为压力，如过多抽取淡水、污染、地形改变和海岸工程等，都对珊瑚礁岛屿淡水透镜体的稳定造成了威胁，对这类干扰方面的研究也有很多。文章还介绍了常用的淡水透镜体研究模型，包括物理模型、解析模型和数学模型，并对其在淡水透镜体中的研究应用作了概述。对中国珊瑚礁岛屿淡水透镜体的研究现状也作了介绍，研究涉及西沙群岛永兴岛珊瑚礁淡水透镜体的厚度、抽取地下水导致的倒锥现象和生物修复等方面。最后，文章对南海珊瑚礁岛屿淡水透镜体的研究作出展望，提出开展对南海其他珊瑚礁岛屿淡水透镜体的研究工作，以及如何使抽取的地下水除污并可供饮用。

Freshwater lens is an important groundwater resource in coral reef islands, and is essential to meet people’s needs and maintain the ecosystem of the island. In this paper, researches on the freshwater lens in the coral reef island are reviewed, including its theory and characteristics. Some factors related to the development of the freshwater lens are summarized, such as, those of hydrogeology, climate, tide, topography and vegetation of the island. The threats from natural and human activities are more serious to freshwater lens than before and need more attention, for example, drought, seawater intrusion, sea-level rising, mechanic erosion of the island, over-drawing of freshwater, pollution, the changes of the landform and coastal construction, etc. may cause damages on freshwater lens. In this paper, some models used in the study of the freshwater lens are described, such as physical models, analytical models and numerical models. The study of the freshwater lens in Chi

为了加快永兴县农业现代化进程,实现农业区域协调可持续发展。对永兴县的农业资源条件、农村社会发展、农业经济状况等进行定量分级评价,因地制宜筛选出三大类17个指标构建永兴县农业功能分区指标体系,通过综合运用主成分分析法和聚类分析法将永兴县农业功能区划分为中部养殖区、中北部林业区、中南部农业区、东部农业区、西部种植区五大农业功能区,描述了各区域资源优势,并有针对性地提出了各区域农业发展总体定位和重点优势产业发展模式。

In order to speeding up the process of agricultural modernization in Yongxing County, to realizing the agriculture regional sustainable development. The paper grade evaluated agricultural resource condition, social development of rural areas, agriculture economic conditions. Screening out three kinds of index to constructed the index system of regionalization of agricultural function in Yongxing County. Using the principal component analysis and cluster analysis method, dividing Yongxing County agricultural function areas into the central breeding region, the north-central forestry area, the south-central agricultural areas, the eastern agricultural region and the western growing areas five agricultural function areas, meanwhile, described the resources characteristic of each function zone. Put forward the general orientation of agricultural development and the key advantages of industrial development model of each function zone.

谚语是方言的重要组成部分,也是传统文化的深层积淀。永兴赣方言谚语声调平仄相谐、尾字前后照应,形成了抑扬顿挫、流转回环的音乐之美。通过探讨永兴方言谚语的声调艺术,可为赣方言的深入研究提供一些材料。

Proverbs are an important part of a dialect and a deep accumulation of the traditional culture . Yongxing Gan dialect proverbs have level and oblique tones and the last words are in agreement with the first .The measured tones and circulation loop form the beauty of music .A probe into the art of tones of Yongxing ’s Gan di-alect proverbs can provide some materials for the deep research of the dialect .

越南阮朝政权19世纪初统一全国之后,继承其先祖阮主政权的"南进"政策,进一步蚕食柬埔寨领土,同时巩固"龙兴之地"嘉定城—南圻地区。南圻地区主要位于湄公河三角洲,河网密布,气候适宜,但开发程度低下。为了促进新占领地区开发,同时为全面侵占柬埔寨做准备,巩固国防,阮朝连续在南圻地区开凿三大运河—瑞河、安通河、永济河。永济河规模最大,利用柬、越两国人民和华侨华人进行了长达5年的开凿。

When the Nguyen Dynasty reunited the whole Vietnam in early 19th Century, it inherited the “Nam ti?n” (southward advance) policy of the ancestor-The Nguyen Lords, further eroding the Cambodian territory, consolidating the“the ground of dragon rising”-Gia??nh Thành (Nam Ky) area. To develop and defend the security of Nam Ky, to prepare the total invasion of Cambodia, the Nguyen Dynasty excavated three canals-Thoai Ha River,An Thong Ha River and Vinh Te Canal.The Vinh Te Cannal is the largest of the three cannals. This article tries to re-search the history of excavation of the Canal in Nam Ky with the record of Gia Dinh Thanh Thong Chi and Dai Nam Thuc Luc, and announces the characteristic of the early Nguyen internal and foreign policy, and the effects of Vietnam’s supremacy in Indochina.