VERTICAL PROFII,ES OF CHL-A AND PRIMARY PRODUCTIVITY IN THE MIDDLE CONTINENTAL SHELF AREA AND EDDY AREA OF THE EAST CHINA SEA

Vertical profiles of chl-a and primary productivity in the middle continental shelf area and eddy area of the East China Sea were studied using data from a cruise in the East China Sea in February to March, 1997 and a cruise in July, 1998. The results showed that chl-a vertical distribution closely related to in situ hydrological and nutrient conditions. Chla-a concentration ranged from 0.22 to 0.35 mg/m³ and 0.93–1.09 mg/m³ in the eddy area and in the middle continental shelf area, respectively. In both areas, chl-a concentrations in deep layers were slightly higher than those in shallow layers, but was of the same order of magnitude. In summer, when a thermocline existed in the water column, highest chl-a concentrations appeared at the base of the thermocline layers in both areas. In the eddy area, chl-a concentration maximized at 31.743 mg/m³, and averaged 1.143 mg/m³ below 30 m depth. In the middle continental shelf area, the highest chl-a concentration was 2.120 mg/m³, the average was 1.168 mg/m³. The primary productivity reached 1418.76 mgC/(m²·d) in summer and 1360.69 mgC/(m²·d) in winter. In the eddy area, the primary productivity was 787.50 mgC/(m²·d) in summer and 159.04 mgC/(m²·d) in winter. Vertical carbon sinking rate from the deep layer to the bottom in both areas is also discussed in this paper. Contribution NO. 4183 from the Institute of Oceanology, Chinese Academy of Sciences. Project No. 49636210 supported by NSFC.     

我国旅游资源开发经营与供地政策探讨

随着社会经济的飞速发展,我国旅游业开始进入加速发展时期,新技术、新观念和新的旅游环境冲击着传统的旅游观念,工业旅游、农业旅游、生态旅游和会展旅游等逐步成为新的热点。巨     

Report on Pontoniinae shrimps （Crustacea：Decapoda）collected by Joint Chinese—German Marine Biology Expeditions to Hainan lsland ,South China Sea：Ⅱ.Harpiliopsis,Ischnopontonia,Jocaste,Palae—mone

The present paper reports 9 species of pontoniine shrimps collected from Hainan IS-land ,South China Sea ,by the Joint Chinese-German Marine Biology Expeditions,in which Peri-climenaeus arabicus (Calman,1939) and Periclimenaeus hecate (Nobili,1904) are recorded for the first time from Hainan Island.     

我国周边国家的矿业立法大扫描

概况我国周边大多数国家属于发展中国家,与矿业有关的法律体系建立的比较晚,且不完善。20世纪90年代以来,各国为了促进矿业的健康发展,纷纷开始制定或修改矿业法。除泰国、巴基斯坦等国外,周边大多数国家出台了新的矿业法,或正在制定或修改矿业法。其目的是要建立和完善本国的矿业法律体     

1∶600万《中国自然环境系列地图》挂图编制出版

全国性自然环境系列地图挂图不仅可以为中学和大专院校提供地理教学之用,而且也为政府机关和研究单位以及广大读者了解全国自然条件与自然环境提供形象直观的图形显示。国外对编制与出版全国性自然环境系列地图挂图非常重视,有些国家还编制出版了多种中小比例尺的全国自然环境系列地图。例如早从20世纪50年代开始,前苏联先后编制出版了1∶500万、1∶400万、1∶1000万和1∶250万苏联自然条件系列挂图,包括地势、地质、地貌、土壤、植被、森林等六幅地图。波兰于20世纪70年代编制出版了1∶20万波兰环境系列地图。澳大利亚、法国、德国、美国、日本、匈牙利、西班牙等许多国家也都出版了自然条件或自然环境系列挂图。     

中国南部沿海生物多样性管理项目召开研讨会

2008年4月16日至22日，“中国南部沿海生物多样性管理项目”办公室与美国海洋与大气局的专家在厦门召开项目研讨会。     

多写勤练出成果

我是一名新闻爱好者，也是《黑龙江国土资源》杂志、中国国土资源报特约记者。在干好本职工作的同时，我始终坚持学习，多写勤练，利用业余时间积极为报刊写稿。多年来，我结合工作实际，结合单位的实际情况，先后在《中国国土资源报》、《黑龙江日报》、《黑龙江经济报》、《黑龙江国土资源》杂志，《黑龙江地质报》、《东北地质矿产经济》等报刊发稿201篇。