查询词典 salinity

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。

In order to find out completely the soil-wheat contaiminated by heavy metals in Tianjin sewage farm, we collect samples on the dry land and examinate contents of heavy metals in soil-wheat system. Firstly, the anthor evaluates that soil irrigated by sewage that has been contaminated slightly, the main polluting factors are Cd and Zn, and then the anthor evaluates soil according to different regions, soil types and irrigating water. Secondly, the anthor analyzes content and enrichment ability of heavy metals in different part of wheat, evaluates wheat is contaiminated by Cd widespreadly, only few samples polluted by Zn.Finally the anthor put up correlative analysis about heavy metal contents in the soil-wheat system, as well as plant enrichment coefficient and some physico-chemical properties of soil, and establishes a prognostic model about heavy metal content among wheat spike, soil, soil types, PH, organic matter and salinity with the quantifying theory.The prognostic accuracy of primarily contaminative factors is the best with compound correlative coefficient examining, the model can be founded.With improvement of living level, people need cleaner food.

为全面了解天津市污灌区农产品生产地土壤和旱地作物小麦的重金属污染状况，我们于2004～2005年对全市污灌区的土壤和小麦进行了采样，在对该区土壤—小麦系统中六种重金属元素(Cd、Cu、Pb、Zn、Cr和Ni)的含量进行检测的基础上，本文首先分析评价了污灌区农田土壤的环境质量总体已达到了轻度污染水平，主要的污染因子是Cd和Zn，同时对污灌区农田土壤分区县、土壤类型和不同灌水类型进行了评价；然后分析了重金属在小麦不同部位的含量与富集能力，评价了污灌区旱地作物小麦普遍遭受了Cd的污染，只有个别样点遭受了Zn的污染；最后对土壤—小麦系统重金属含量间以及植物富集系数与土壤部分理化性质间进行了相关分析，由于土壤类型是定性变量，本论文以数量化理论建立了小麦穗实中重金属含量与土壤中重金属全量、土壤类型、PH值、有机质和全盐量间的预测模型，经复相关系数检验，污灌区主要的污染因子Cd和Zn的预测精度最高，模型可以成立。

Dehydration, high salinity and low temperature are three major abiotic stresses affecting crop growth and field.

干旱、高盐及低温是影响作物生长的三种主要非生物胁迫因子。

The solubility,rheological behaviors and flow of AMPS copolymer in core were experimented. The results indicate that the solubility is low,and salinity greatly influences the filterability of AMPS solution.

对AMPS共聚物的溶解性、溶液流变特性以及在岩心中流动进行的试验结果表明，其溶解性较差；矿化度对溶液的滤过性有较大的影响；在剪切速率。

In this manner, sea water directly beneath fleshly formed sea ice has a higher salinity than it did before the ice appeared.

这样，在新形成的海水冰面的正下方的海水比在冰形成之前有更高的盐度。

Some people would say, because the lake's salinity is relatively high, it will not freeze up.

有的人会说，因为湖里的盐份比较高，它就不会结冰了。

The salinity of sea water affects both its weight and freezing point.

但是海水的盐度影响它的重要及冰点。

Based on the Fresnel principle, a method of the seawater salinity measurement using fiber is introduced.

本文提出了一种应用菲涅耳定理设计的光纤盐度测量方法。

The results indicated that 0.3% brackish water could be used for growing melon without any yield losses,but fruit yield reductions were significant(P.01) during straw period and flor-fruit period and(P.01) during fruitage at 5,7 and 9 g/L.The salinity improved quality during fruitage and decreased quality b...

结果表明，在不同生育时期3 g/L咸水处理对甜瓜产量均无显著影响，在开花坐果期和伸蔓期至果实成熟期，5，7，9 g/L咸水处理的单果重均极显著低于对照，而在果实发育期各咸水处理的单果重均显著低于对照；在甜瓜果实发育期以前，不同浓度咸水处理使甜瓜品质稍有降低，而后期处理则能提高甜瓜果实的品质，其中可溶性蛋白含量的变化不大；伸蔓期至果实成熟期持续咸水处理对甜瓜营养生长有明显的抑制作用，其中对株高的影响表现得尤为突出。

The distribution of water temperature, salinity, density, dissolved oxygen content, geostrophic current and their relationships with ENSO events were analyzed.

摘 要：根据日本气象厅RyofuMaru调查船干1972～1977和1989～1990年间夏季在155°E断面观测的水文资料，分析了该断面上北太平洋副热带海域(18°～30°N)的主要水文要素-温度、盐度、密度、溶解氧含量和地转流等的分布特征及其与ENSO现象之间的关系。

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。