中部半干旱山区沙棘、柠条不同造林方法效果初探

地处甘肃中部的渭源县北部干旱山区，年降雨量在420-490mm之间，且多集中在7、8、9三个月，海拨高度在1980-12650m之间，年均气温在5.2-40℃之间，荒山造林土壤多为第三红黄土上发育的淋溶灰褐土，地形地貌由于水土流失严重，沟壑纵横，支离破碎，自然生态条件严酷。造林成活保存率低。较适宜于柠条（陕北柠条）沙棘（中国沙棘）生长。为探讨柠条、沙棘植苗造林和直播造林的经验与技术、寻找以最小的造林成本来获得较大成活保存率，本人亲自设立柠条、沙棘种子直播和苗子栽植两种造林方法，进行了三年的对比观察，现将试验对比效果初报如下：     

Some evidence of drying trend over northern China from 1951 to 2004

The surface wetness index, Palmer drought sererity index and the retrieval of soil moisture over China were calculated using monthly precipitation and monthly mean surface air temperature. Based on the contrast analysis of the variation of the above three indices and precipitation, the dry/wet spatio-temporal pattern of northern China in the last 54 years was revealed, and the evidence of drying trend over northern China was analyzed, especially. The results show the following four facts: (1) The drying trend is the main characteristic of the eastern part of Northwest China and the central part of North China since the 1980s and it was enhanced in the last 15 years mainly due to the precipitation decrease and the temperature increase; (2) During the last 54 years, there was only one dry/wet shift at the interdecadal scale occurring in the eastern part of Northwest China and the central part of North China in the late 1970s, which was related to 1977/1978 global abrupt change, whereas there were three shifts in Northeast China, one was in the mid 1990s and the other two were in 1965 and 1983, respectively; (3) Unlike the variation trend of other subregions of northern China, the western part of Northwest China is currently located in a relatively wetting period, which is weak-ened due to the temperature increase; (4) The extreme drought frequency is obviously increasing in the eastern part of Northwest China, the central part of North China and Northeast China since the 1980s, which is closely related to the precipitation decrease and temperature increase in these subregions.     

Variability of surface circulation in the South China Sea from satellite altimeter data

11-year satellite altimeter sea surface height （SSH） anomaly data from January 1993 to December 2003 are used to present the dominant spatial patterns and temporal variations of the South China Sea （SCS） surface circulation through Empirical Orthogonal Function （EOF） analysis. The first three EOF modes show the obvious seasonal variations of SSH in the SCS. EOF mode one is generally characterized by a basin-wide circulation. Mode two describes the double-cell basin scale circulation structure. The two cells were located off west of the Luzon Island and southeast of Vietnam, respectively. EOF mode three presents the mesoscale eddy structure in the western SCS, which develops into a strong cyclonic eddy rapidly from July to September. EOF mode one and mode three are also embedded with interannual signals, indicating that the SCS surface circulation variation is influenced by El Nino events prominently. The strong El Nino of 1997/98 obviously changed the SCS circulation structure. This study also shows that there existed a series of mesoscale eddies in the western SCS, and their temporal variation indicates intra-seasonal and interannual signals.     

SAP在华推进RFID全球对话

全球最大的企业管理软件和协同商务解决方案供应商SAP在北京召集RFID专家座谈会，旨在推动无线射频识别（RFID）技术在各行业的推广与应用。来自中国企业、政府机构和学术界的高层代表齐聚一堂，共同探讨了RFID在帮忙中国企业提升效率和竞争力方面的潜在优势。此次活动突出展现了SAP在推动全球对话和技术开发方面所做的积极努力。     

争夺站——直销牌照申请乱局

短短的7年间，销售额从3亿到170亿。安利（中国）在演绎直销营销奇迹的同时，也让世界看到了中国直销市场的巨大潜力。[编者按]     

中国直销法规的三大核心特征

20世纪80年代末，日本一家卖磁性保健床垫的Japan Life公司在未经中国官方经营许可的情况下，偷渡内地，擅自在我国开展传销业务，传销开始进入中国。仿佛潘多拉魔盒，进入中国的传销发展迅猛，大大小小的传销公司如雨后春笋般在全国蔓延。     

系统是梦想成真的利器

随着中国直销业的竞争越发激烈，直销经营的专业化显得尤其重要，而系统化运作作为其中一个重要手段变得越来越不能忽略。但是虽然大家都在提“系统”，但是很多人对于系统还是一知半解的，今天我们就来谈谈究竟什么是系统。[编者按]     

资本的游戏

7月，当商务部的官方网站开始陆续刊登企业的直销申请声明时，沉寂了半年多的中国直销界终于开始有了一些活跃的元素。截止8月2日，商务部一共贴出了27家企业的直销声明，其中，雅芳（中国）、珍奥、蚁力神天玺、如新（中国）、宝健（中国）已成功获牌。     

离开天狮的日子

谈到中国的直销行业，绝对不能错过天津的天狮集团；谈到中国的直销企业，更不能不谈到内资直销企业的翘楚——天狮集团。天狮的崛起，是各种因素综合的结果，但人才在其中所起的作用，应该居功至伟。然而，天狮似乎也不能避免“铁打的营盘流水的兵”，从1995年成立至今的11年间，一大批优秀的直销人受天狮吸引而加盟，继而在天狮中成长，最后却基于各种因素离开天狮……     

中国台湾直销协会掠影

中国台湾直销协会成立的背景 中国台湾的直销市场始于20世纪70年代末期，因为一开始就有非法的传销公司带来拉人头敛财的弊端，并且当时没有相关法律来规范，造成很大的社会风波，也让一般社会大众将直销视为老鼠会，极为排斥。80年代初期，美商安利公司、雅芳公司陆续进到台湾。虽然都是正派经营的公司，但是因为直销已失去社会大众的信任，使他们做得非常辛苦。