artificial vegetation造句
例句與造句
- changes of artificial vegetation growth in shapotou area
沙坡頭地區(qū)人工植被生長動態(tài)研究 - in artificial vegetation-fixed sandy dunes, microbiotic crusts always occur with stabilizing of the environmental conditions in vegetation regions
在土壤水環(huán)境變化的驅(qū)動下，人工植被系統(tǒng)發(fā)生了一系列的演替過程。 - 2 . the structure of artificial vegetation in shapotou region the structure of vegetation usually consisted of a vertical structure and a horizontal structure of vegetation . based on the vertical structure of vegetation, there were three layers of artificial vegetation in shapotou region
2、植被垂直結(jié)構及水平結(jié)構：沙坡頭地區(qū)人工固沙植被垂直結(jié)構可分為三個顯著的片層結(jié)構：灌木片層、草本片層和生物結(jié)皮片層。 - 2 . the structure of artificial vegetation in shapotou region the structure of vegetation usually consisted of a vertical structure and a horizontal structure of vegetation . based on the vertical structure of vegetation, there were three layers of artificial vegetation in shapotou region
2、植被垂直結(jié)構及水平結(jié)構：沙坡頭地區(qū)人工固沙植被垂直結(jié)構可分為三個顯著的片層結(jié)構：灌木片層、草本片層和生物結(jié)皮片層。 - the further analyses indicate that anti-erosive vegetation should be natural well developed or near natural, and it would be different not only in structure, but also in succession, management, etc ., from artificial vegetation taking economical value as only a target
進一步的分析表明防蝕植被就是發(fā)育良好的自然植被或者接近自然的人工植被，與純粹追求經(jīng)濟目標的人工植被相比，不僅在結(jié)構上，而且在演替、經(jīng)營等方面是不同的。 - It's difficult to find artificial vegetation in a sentence. 用artificial vegetation造句挺難的
- 3 . the growth dynamic of artificial vegetation in shapotou region in shapotou area, the growth curve of shrubs was like the form of " s " . the stagnant period of growth was in april, the exponential period of growth was from may to july, the stable period of growth was from august to october
3、植被生長動態(tài):研究區(qū)內(nèi)灌木植物生長曲線呈s型，生長停滯期在4月左右，生長指數(shù)期在5月到7月，生長靜止期在8月到10月，10月前后停止生長。 - the reproductive characteristics and population structure of artemisia ordosica, hedysantm scoparium, caragana korshinskii and the reproductive characteristics of annual plants eragrostis poaeoides and bassia dasyphylla were observed in shapotou artificial revegetation area . stability of the artificial vegetation was appraised from the views of its persistence and variability under local natural condition . the study showed that : the artificial-natural vegetation built with sandbreaks and plants is stable in shapotou area
通過對沙坡頭人工固沙植被區(qū)主要建植種群檸條(caraganakorshinskii)、花棒(hedysarumscoparium)和油蒿(artemisiaordosica)的繁殖特性及種群結(jié)構的研究，以及自然侵入的一年生草本植物小畫眉草(eragrostispoaeoides)和霧冰藜(bassiadasyphylla)繁殖特性的研究，探討了在植被的持久性和變異性，分析評價了主要受惡劣環(huán)境壓力下的人工固沙區(qū)植被的穩(wěn)定性。 - the structures and dynamic changes of the artifical sand-fixing vegetation were studied based on the follow views : components of vegetation community, plant diversity, life-forms of vegetation, trends of plant growth, characteristics of the vertical and horizontal structure of vegetation, relationship between the vegetation community and environment ( including soil moisture temperature etc . ), relationship between the vegetation community and characteristics of plant physiological activities . some results were showed as follow : 1 . components, diversity and life style of artificial vegetation in shapotou region the marked changes of artificial vegetation have taken place during more than 40 years, since the establishment of sand-fixing vegetation
本文以騰格里沙漠東南緣寧夏中衛(wèi)縣沙坡頭地區(qū)人工固沙植被作為研究對象，采用傳統(tǒng)生態(tài)學的野外調(diào)查方法，從植被群落的組成、多樣性、生活型、群落生長動態(tài)、垂直結(jié)構特征、水平結(jié)構特征、群落結(jié)構與周圍環(huán)境(土壤含水量、溫度)相互關系及其與植物自身生理生態(tài)適應特征關系等多個角度研究了人工植被群落的結(jié)構及其動態(tài)變化，取得了如下研究結(jié)果：1、植被群落組成、多樣性及生活型：沙坡頭地區(qū)人工植被經(jīng)過近50年的演變，從流動沙丘到固定沙地，沙地植被的動態(tài)變化經(jīng)歷了從人工植被到人工?自然植被的轉(zhuǎn)變，從人工植被建立初期的少數(shù)幾種引種植物到現(xiàn)有30多種植物，隨著固定沙地時間的延長，植物種類日趨豐富，并且人工植被在1525年、4050年兩個階段，物種的周轉(zhuǎn)速率最大，即群落結(jié)構變化最大。 - the structures and dynamic changes of the artifical sand-fixing vegetation were studied based on the follow views : components of vegetation community, plant diversity, life-forms of vegetation, trends of plant growth, characteristics of the vertical and horizontal structure of vegetation, relationship between the vegetation community and environment ( including soil moisture temperature etc . ), relationship between the vegetation community and characteristics of plant physiological activities . some results were showed as follow : 1 . components, diversity and life style of artificial vegetation in shapotou region the marked changes of artificial vegetation have taken place during more than 40 years, since the establishment of sand-fixing vegetation
本文以騰格里沙漠東南緣寧夏中衛(wèi)縣沙坡頭地區(qū)人工固沙植被作為研究對象，采用傳統(tǒng)生態(tài)學的野外調(diào)查方法，從植被群落的組成、多樣性、生活型、群落生長動態(tài)、垂直結(jié)構特征、水平結(jié)構特征、群落結(jié)構與周圍環(huán)境(土壤含水量、溫度)相互關系及其與植物自身生理生態(tài)適應特征關系等多個角度研究了人工植被群落的結(jié)構及其動態(tài)變化，取得了如下研究結(jié)果：1、植被群落組成、多樣性及生活型：沙坡頭地區(qū)人工植被經(jīng)過近50年的演變，從流動沙丘到固定沙地，沙地植被的動態(tài)變化經(jīng)歷了從人工植被到人工?自然植被的轉(zhuǎn)變，從人工植被建立初期的少數(shù)幾種引種植物到現(xiàn)有30多種植物，隨著固定沙地時間的延長，植物種類日趨豐富，并且人工植被在1525年、4050年兩個階段，物種的周轉(zhuǎn)速率最大，即群落結(jié)構變化最大。 - middle-east of taihang mountain, is one of the richest regions of plants system in hebei province, not only has the abundant natural seed plants but also has the rich artificial vegetations, medicina l plants, flower plants, has many particular precious local plants and sole inheritance plants
太行山中段東麓是河北省植被植物區(qū)系最為豐富的地區(qū)之一，不僅自然建群種植物豐富，而且人工植被、藥用植物、花卉植物種類也較為多樣，且具有多種孑遺植物、河北省特有的名貴植物。 - special seed germination and seedling survival mechanism in artemisia ordosica, eragrostis poaeoides and bassia dasyphylla ensured the maintenance and replacement of their populations in accordance with local environmental conditions . at o ld artificial vegetation of shapotou area, c . korshinskii is expected to disappear in the future of 50 years or so
沙坡頭人工固沙區(qū)植被隨時間推進，老固沙區(qū)中的檸條種群將在50年或稍長的時間內(nèi)消失，形成以油蒿種群為主，花棒種群為輔的多年生群落。 - the species were separately caragana korshinskii hydysarum scoparim artemisia ordosica in shrubs layer, eragrostis poaeoides bassia dasyphylla in herbs layer, bryum argenteum barbula ditrichodies in microbiotic crusts layer . and the dominant species of them were artemisia ordosica eragrostis poaeoides bryum argenteum respectively . due to the different time and the topographical varieties in the fixing-sand region, the horizontal structure of artificial vegetation manifested out the mosaic characteristics
灌木片層的主要植物種是檸條(caraganakorshinskii)、花棒(hydysarumscoparim)、油蒿(artemisiaordosica)等灌木植物，其中優(yōu)勢種為油蒿；草本片層的主要植物種有小畫眉草(eragrostispoaeoides)、霧冰藜(bassiadasyphylla)等，其中優(yōu)勢種是小畫眉草；生物結(jié)皮由藻類和苔鮮類構成，其中，銀葉真鮮(bryumargenteum夕為固沙植被區(qū)鮮類地被層優(yōu)勢成分。