沈阳师范大学学报(自然科学版)
瀋暘師範大學學報(自然科學版)
침양사범대학학보(자연과학판)
JOURNAL OF SHENYANG NORMAL UNIVERSITY(NATURAL SCIENCE)
2014年
3期
441-445
,共5页
王艳%杨明%董艳杰%陈秋颖%杜晶
王豔%楊明%董豔傑%陳鞦穎%杜晶
왕염%양명%동염걸%진추영%두정
大凌河%小凌河%水生植物%湿生植物%调查%对策
大凌河%小凌河%水生植物%濕生植物%調查%對策
대릉하%소릉하%수생식물%습생식물%조사%대책
Da Linghe River%Xiao Linghe River%hydrophyte%hygrophyte%survey%countermeasure
通过2013年6月末、10月末2次调查,在大凌河、小凌河的上、中、下游共采集到水生高等植物有15种,沿岸湿生植物34种。水生植物主要以单子叶植物纲眼子菜科的沉水植物为主。小凌河高等植物种类明显少于于大凌河。大凌河的高等植物种类呈现从上游到下游越来越少的变化规律,在一定程度上体现出大凌河从上游到下游环境质量下降的特点。河流沿岸的湿生高等植物物种丰富度低,且绝大多数为一年生植物,没有明显的优势种,说明凌河高等植物群落处于受干扰后恢复的演替初期。由于凌河受多种因素干扰的历史较长,群落结构亟待恢复。建议通过进一步的环境管理和工程措施促进水生、湿生植被的良性发展。
通過2013年6月末、10月末2次調查,在大凌河、小凌河的上、中、下遊共採集到水生高等植物有15種,沿岸濕生植物34種。水生植物主要以單子葉植物綱眼子菜科的沉水植物為主。小凌河高等植物種類明顯少于于大凌河。大凌河的高等植物種類呈現從上遊到下遊越來越少的變化規律,在一定程度上體現齣大凌河從上遊到下遊環境質量下降的特點。河流沿岸的濕生高等植物物種豐富度低,且絕大多數為一年生植物,沒有明顯的優勢種,說明凌河高等植物群落處于受榦擾後恢複的縯替初期。由于凌河受多種因素榦擾的歷史較長,群落結構亟待恢複。建議通過進一步的環境管理和工程措施促進水生、濕生植被的良性髮展。
통과2013년6월말、10월말2차조사,재대릉하、소릉하적상、중、하유공채집도수생고등식물유15충,연안습생식물34충。수생식물주요이단자협식물강안자채과적침수식물위주。소릉하고등식물충류명현소우우대릉하。대릉하적고등식물충류정현종상유도하유월래월소적변화규률,재일정정도상체현출대릉하종상유도하유배경질량하강적특점。하류연안적습생고등식물물충봉부도저,차절대다수위일년생식물,몰유명현적우세충,설명릉하고등식물군락처우수간우후회복적연체초기。유우릉하수다충인소간우적역사교장,군락결구극대회복。건의통과진일보적배경관리화공정조시촉진수생、습생식피적량성발전。
A survey of advanced plants on the upper reaches,middle reaches and lower reaches of Da Linghe River and Xiao Linghe River was carried at the end of June and October in 2013.15 hydrophyte and 34 hygrophyte species were collected in total.Hydrophytes which belong to potamogetopaceae were dominant.Plant species in Xiao Linghe River were less than in that of Da Linghe River which meant that the human interferences were more serious in Xiao Linghe River.Plant species decreased from upper reaches to lower reaches of Da Linghe River and this phenomenon showed that water environment changed from upper to lower reaches.Hygrophyte richness was low along the Linghe River and no obvious dominant species.Most of them were annual plant.Because of the long term disturbance the plant community of Linghe River was in the preliminary stage of success.A further environmental administration and ecological engineering should be taken to promote the development of plant community both in water and along the bank of Linghe river.