潮间带

The results indicated that there were 150 species belonged 70 families, species of Molluscs and Crustacea are the most which comprised 80% of all species, and some are the commercial species with high value.

结果表明，该海域潮间带调查采获的潮间带生物标本共70科150种，以软体动物和甲壳类出现的种类最多，二者占了总种类数的80%，其中部分属经济价值较高的种类。

Seagrass are endogen plants living in intertidal and subtidal zones develope a series of ecophysiological changes adaptive to submersed sea water environments. This paper reviewed seagrass photosynthesis that is impacted by factors such as light, temperature, inorganic carbon and salinity, of which light and inorganic carbon are the common restriction factors.

生活在潮间带和潮下带海水中的单子叶植物海草，在生理生态方面对海洋沉水环境形成了一系列的适应，其光合作用受到光照、温度、无机碳和盐度等环境因子的影响，其中光照和无机碳常常成为限制因子。

On the mudflat, in general, the current velocity reached peck value during the flood and ebb phase in single tidal cycle.

潮间带周期性淹水区域水深、流速的变化过程是潮滩水动力过程的基本组成部分，也是潮流与泥沙相互作用的基础。

The result showed that:(1) There were a higher density of Ostreidae and Balanidae and a lower biodiversity in the cay sampling section of Daxie Island.(2) No significant difference was found in the macrozoobenthos community among the tide plat sampling section in Daxie Island.(3) There was a lower macrozoobenthos species number, biodiversity, and a higher density of Sternaspis scutata and Capitella capitata than those in the sea area beside Daxie Island. Moreover, a significant difference was found in the macrozoobenthos community between the sea area of Daxie Island and the adjacent islands.

结果发现：(1)大榭岛岩相潮间带断面牡蛎科和藤壶科等科的物种栖息密度较高，生物多样性较低；(2)泥沙相潮间带底栖动物状况与其他海岛差别不显著；(3)大榭岛近岸海域底栖动物种数少于其他海岛近岸海域，且前者不倒翁虫和小头虫等多毛类物种栖息密度较高，生物多样性较低，群落结构与其他区域相差较大；(4)环境质量的生物评价结果显示，大榭岛近岸海域扰动程度高于其他海岛近岸海域。

ABSTRACT The Yellow River delta located in the land and sea interaction zone and is being formed with the coaction of the River and Bohai sea. The three parts of the whole delta, i. e. the delta plain, tidal zone and submerged delta, are in different dynamic environments. The delta plain is controlled by the land surface processes. The tidal zone is under the coaction of the river and the sea.

黄河三角洲处于海陆交错地带，是河流与海洋因素共同作用的堆积体，从陆上三角洲平原到潮间带直至水下三角洲受不同动力因素的作用，陆上三角洲平原主要受陆地表层过程的影响；潮间带受陆、海动力的共同作用，而水下三角洲主要受海洋动力的作用。

This study was conducted at 10 subtidal and 4 intertidal sampling sites in Dongsha Atoll by SCUBA diving and snorkeling during May 13-20 and August 20-22, 2004. A total of 133 mollusk species were collected, within which Muricidae being the most abundant family with 16 species, followed by family Conidae with 14 species. Twenty five species were first recorded in Dongsha Atoll. Species with economical value, e.g.

於2004年5月13日至20日和8月20日至22日期间在东沙岛海域十个亚潮带测站和四个潮间带测站进行底棲软体动物调查，经利用潜水观察记录和採集標本方式，目前已整理出133种软体动物，以骨螺科16种最多，其次为芋螺科14种，其中更有25种为东沙岛首次记录到之种类。

This study was conducted at 10 subtidal and 4 intertidal sampling sites in Dongsha Atoll by SCUBA diving and snorkeling during May 13-20 and August 20-22, 2004. A total of 133 mollusk species were collected, within which Muricidae being the most abundant family with 16 species, followed by family Conidae with 14 species. Twenty five species were first recorded in Dongsha Atoll. Species with economical value, e.g.

於2004年5月13日至20日和8月20日至22日期间在东沙岛海域十个亚潮带测站和四个潮间带测站进行底栖软体动物调查，经利用潜水观察记录和采集标本方式，目前已整理出133种软体动物，以骨螺科16种最多，其次为芋螺科14种，其中更有25种为东沙岛首次记录到之种类。

Study shows that environment evolution and eustatic change of Holocene in this area may be divided into 6 stages:① early stage of early Holocene, 9 100~10 900 aBP,when sea level was low and this area was an oxidizing environment or oxidizing-reducing transition environment;② late stage of early Holocene, 8 000~9 100 aBP, sea-level rising,...

研究表明，本区全新世环境演化分为6个阶段：①早全新世早期，10900~9100aBP，海平面较低，尚未淹没本区，为近岸氧化环境或氧化—还原过渡环境；②早全新世晚期，9100~8000aBP，海水上涨，本区时淹时退，为浅海或潮坪环境，生物钻孔发育；③中全新世主体，8000~4150aBP，海平面快速上升，完全淹没，Fe2+/Fe3+介于0.7395~1.9123之间，为全新世中最高段，表明还原程度强、全球气候变暖；④中全新世后期，4150~2850aBP，海水有所下降，仍为浅海环境，Fe2+/Fe3+较高，多在1.0以上；⑤晚全新世，2850~1310aBP，海平面进一步下降，本区时常暴露，其中2150~1310aBP以还原环境为主，为潮下带，2150~2850aBP以氧化—还原过渡环境为主，为潮间带；⑥1855AD以来，海平面基本稳定，稍有上升，为现代黄河三角洲沉积时期。本区全新世至少存在5期冷热交替的旋回性气候变化。

Based on this method, the littoral zone flooding lines in Zhanjiang Harbor of China were analyzed by Landsat satellite remote sensing images, and the littoral topography and flooding were calculated.

利用该方法，由Landsat 卫星图像提取了我国湛江港潮间带淹水线信息，计算了湛江港潮间带地形和漫滩。

There are two oyster species including the Kumamoto oyster which mainly inhabit at intertidal zones and Jinjiang oyster which is mainly found at subtidal zones.

该地区牡蛎由主要分布在潮间带的熊本牡蛎和主要分布在潮下带的近江牡蛎组成。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。