外来植物

The result come from the amended adjudge criterion is according to the result of factual investigation.

根据实际情况具体修改指标内涵，对南岳外来入侵植物红花酢浆草危险性程度评价的结果与实际走访调查评估完全相符。

Exogenously supplied aspartate is not an active precursor of asparagine in plant tissurs.

外来供给的天门冬氨酸，在植物组织中并不是一个活跃的天门冬酰胺前体。

Eupatorium adenophorum is one of the most dangerous invasive plants in China.

紫茎泽兰是我国外来入侵物种中危害最为严重的植物之一。

Eupatorium adenophorum is one of main invasive plants in China and has caused great economic losses. A study was conducted to determine the biomass allocation, leaf morphology and growth response of E.

紫茎泽兰是我国主要外来入侵植物之一，在我国西南地区迅速传播，引起了巨大的经济损失。

Exotics are most useful in regions in which the native flora is deficient .

在当地植物种类贫乏的地区，外来种最为有用。

In addition, fanwort, an invasive species of water lilies in China, was investigated.

此外，本文还对水盾草这种外来睡莲类植物进行了调查。

The risk of alien invasive plant--Oxalis Corymbosa was studied with referring to the pest risk analysis method and the amended adjudge criterion of this paper ,The result indicate that Oxalis Corymbosa is a more devastating alien invasive plant, The paper suggest the related management department shoud make some measures to resolve this problem in time.

借鉴有害生物危险性分析方法和运用本文修改的判断指标内涵研究了南岳自然保护区外来入侵植物红花酢浆草的危险性，结果表明红花酢浆草处于高度危险性等级，建议管理部门尽快采取合理的防治措施及时予以解决。

Study on reproductive biology of the invasive plant Solidago Canadensis.

外来入侵植物加拿大一枝黄花繁殖生物学研究。

The water hyacinth damage is belonged to one example introducing outside species damage , this plant is already widespread and uncurbed ,"green is called contaminating a crime culprit ".

水葫芦的危害属于引进外来物种危害的一例，这种植物已经泛滥成灾，被称为"绿色污染元凶"。

From 6860 to 3170 cal.yr BP,semi-desert steppeexpanded,regional montane forest steppe retreated,suggesting a prolonged warm and dryclimate.Between 3170 and 2340 cal.yr BP,regional forest steppe expanded whereassemi-desert steppe retreated,indicating the climate became cool and wet gradually and thehumidity reached the maximum at the end of this stage.During 2340～1600 cal.yr BP,Poaceae steppe dominated whereas wetland meadow expanded and the montane forest stepperetreated,suggesting a cool and wet climate prevailed,wormwood grass steppe prevailed andthe climatic instability increased after 1600 cal.a BEThe climate and environmental reconstructions by pollen were supported by the diatomrecords.A relative high lake level and moister climate prevailed between 8660 and 7230 cal.yr BP as inferred by the dominance of planktonic diatom genera and high planktonic/benthicratio (〉40).low lake level and dry climate sustained during 7230～2330 cal.yr BP assuggested by the low abundance of planktonic diatom and low planktonic/benthic ratio ～20and the lake returned to high level during 2330～930 cal.yr BP as inferred by there-dominance of the planktonic diatom and the high value of palnktonic/benthic ratio.The pollen-based climate reconstruction was also consolidated by the grain size andPediastrum concentration records.

Ugii Nuur湖周围现代孢粉研究表明：松属为空气传播的外来花粉，其含量变化可能指示了远山森林草原发育状况；禾本科具显著低代表性，母体植物建群时含量通常在10％以下：藜科花粉含量可以指示区域气候干旱程度。2、以现代孢粉研究为基础、可靠AMS~(14)C年代为框架，Ugii Nuur孢粉记录高分辨率地重建了蒙古国中部地区过去8660 cal.yr BP以来的植被和气候变化。8660～7800 cal.yr BP研究区植被为禾草草原，湖畔及河谷低地发育苔草草甸，远山发育松属针叶林和森林草原，气候温和略湿润；其中8350～8250 cal.yr BP湿生草甸扩张，旱生植物成分减少，气候凉湿。7800～6860 cal.yr BP旱生成分增加，气候转向暖干。6860～3170 cal.yrBP半荒漠草原扩张，远山森林草原退缩，山地草原和河谷及湖畔湿生草甸退缩，气候持续暖干。3170～2340 cal.yr BP半荒漠草原退缩，远山森林草原扩张，气候转凉变湿，末期湿度条件达最佳。2340～1600 cal.yr BP禾草草原发育，湖畔及河谷低地湿生草甸扩张，远山森林草原略有退缩，气候总体较凉湿。1600 cal.yr BP以来研究区发育禾草-冷蒿草原，气候波动较大。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。