1)Natural succession自然演替
1.The paper analyzes the changes of soil in natural succession process including environmental features,nutrient and seed pool;furthermore it indicates climax community of Karst areas vegetation and specialty of direction towards community su.植被的自然演替是岩溶地区生态重建的主要方式。
2.The process of natural succession of vegetation in Karst rocky desertification area in central Guizhou was divided into the herbosa stage,the stage of herbosa-shrub,the stage of vine-shrub,the stage of subaltern tree forest and the stage of evergreen broad-leaved forest according to the characteristic of plant community.根据植物群落的特征,将黔中喀斯特地区石漠化后植被自然演替过程分成草丛阶段、草灌阶段、藤刺灌丛阶段、次生乔林阶段和常绿阔叶林阶段,应用物种丰富度指数、Simpson指数、Shannon-Wiener指数和Pielou均匀度指数分别研究各演替阶段草本层、灌木层、乔木层和群落总体的物种多样性。
英文短句/例句
1.Changes of soil enzyme activities in the copper mine tailings during natural succession自然演替过程中铜尾矿土壤酶活性的变化
2.The natural vegetation succession is a major means of ecological rehabilitation in Karst area.植被的自然演替是岩溶地区生态重建的主要方式。
3.Study on the Natural Vegetation Succession and Land Suitability Evaluation of Gangue Pile;煤矸石山植被自然演替及其土地适宜性评价研究
4.Identification of the Natural Communities in Vegetation Succession Using Grey Relational Analysis in Loess Hilly Region,China黄土丘陵区纸坊沟流域植被自然演替阶段的识别与量化分析
5.The Succession and Characteristic of Vegetation Community Research in Zuojia Nature Reserve;左家自然保护区植物群落特征及其演替研究
6.The Changes of Soil Environment during Natural Vegetation Restoration in Northwest Guizhou黔西北植被自然恢复演替过程中土壤环境变化
7.Community Characteristics and Succession Tendency of Natural Plants in Sun Island Resort of Harbin太阳岛风景区自然植物群落特征与演替趋势
8.Ecological mechanisms of vegetation succession of coastal wetland in Yancheng Nature Reserve盐城自然保护区海滨湿地植被演替的生态机制
9.A succession of ecological communities originating in a dry habitat.旱生演替系列在干燥的地面上繁衍的一个生态群落的自然演化
10.The maximal water holding rates (MWHR) of moss and litters in spruce plantations are lower than those in natural secondary series.人工云杉林苔藓和枯落物的最大持水率均低于自然恢复演替系列。
11.Characteristics and Dynamics of Successional Community in the Evergreen Broad-Leaved Forests, Damingshan Mountain;大明山自然保护区常绿阔叶林演替序列群落特征及动态研究
12.The Successional Mode in Initial Stage of Natural Vwgetation Community Restoration in Abandoned Quarry Site of Sibao-shan;四宝山废弃采石场山体自然恢复初期群落演替规律研究
13.Assessment on Effects of Forest Succession on Soil Fertility in Xinglongshan Mountain National Nature Reserve,Gansu Province甘肃兴隆山自然保护区森林演替对土壤肥力影响的评价
14.Study on the Species Diversity during the Natural Succession of Degraded Karst Vegetation in Northwest Guizhou黔西北喀斯特区植被自然恢复演替过程中物种多样性研究
15.Only art can substitute for nature.唯有艺术能代替自然。
16.The Dynamic Study on the Plant Community of Wulingshan Natural Reserve between Middle and Lower Mountain Ectone during Its Embryoism Stage of Cutting Succession;雾灵山自然保护区中低山森林交错带采伐演替初期阶段植物群落动态研究
17.At every turn they think of themselves before others.他们事事先替自己打算,然后再替别人打算。
18.Her acting was very natural.她的表演自然大方。
相关短句/例句
Natural restoration succession自然恢复演替
3)physiographic succesion自然地理演替
4)inevitable succession必然演替
5)natural secondary series自然恢复演替系列
1.Woodland hydrological effects of spruce plantations and natural secondary series in sub-alpine region of western Sichuan;川西亚高山人工云杉林和自然恢复演替系列的林地水文效应
6)Artificial promotion succession人工促进自然演替
延伸阅读
群落演替群落演替community succession 群落演替(eommunity sueeession)群落经过一定的发展时期或因环境条件的改变,使之从一个类型转变成另一类型的顺序过程。即在一定的地域内原有群落被另一群落所替代的现象。美国克莱门茨(F.E.Clements,)1916年创立群落演替的概念。由于植物是昆虫和其他动物的营养物质和能量来源,植物群落的演替实际上也包含着昆虫等动物相伴随的演替。从生态系统的能量、生物量和生产力变化的观点讨论演替过程,通称生态演替(ec010glcal su-eeession)或生态系统发展(eeosystem develoPm·ents)。演替原因演替的发生常由于以下原因:①环境因素对群落的作用,或群落本身对环境作用所引起的变化;②植物繁殖体的散布;③群落内种间关系的变化;·④新的物种、亚种、变种或新生态型的产生。 演替类型群落演替的类型是多种多样的,基本类型可归纳为以下几种。 按基质性质和变化趋势分:①水生基质演替系列(Hydroareh sere),植物的发展开始于水生环境中;②早生基质演替系列(xerarcn sere),植被的发展始于干早基质上。这两类演替过程,都可能改变基质的性质和生境条件,并向中生植物群落发展。 按时间的发展分:①世纪演替,或称为群落系统发育,这类演替占有很长的地质年代,群落演替过程与种系进化过程密切相关,进程非常缓慢;②长期演替,经过几十年或上百年的演替,如森林群落之间的演替;③快速演替,如草原撩荒地在面积较小和种子散布来源较临近时,演替可迅速发生。 按决定演替的主导因素分:①群落发生演替,是指原生裸地或次生裸地上群落形成的过程;②内因生态发生演替,取决于群落所特有的并决定群落发展的内部矛盾,这类演替是有规律地一个群落被另一群落所代替,且永无终止;③外因生态发生演替,是由外界环境因素的作用所引起,如火成演替、气候性演替、土壤性演替、昆虫或动物性演替、人为演替等。对植物群落而言均属偶然演替;④地因发生演替,由大范围内条件的变化所引起的群落演替过程,如地理环境的改变所导致的演替。 按演替的开始状况分:①原生演替(Primary suc-cession)是指从原生裸地上开始的群落演替,如从岩石表面开始的早生演替,或从湖底开始的水生演替。演替过程中由顺序发生的一系列群落形成一个原生演替系列。例如早生演替系列,裸露的岩石表面由硝化细菌开始,经过地衣阶段、苔鲜植物阶段、草本植物阶段、灌丛阶段到乔木林阶段。原生演替实质上是群落生活型的组成和植物环境的改变,各个阶段的群落总是比上一群落结构复杂而高大,对环境的利用更充分,改变环境的作用更强。
