vegetation period 中文意思是什麼
vegetation period
解釋
營養期- vegetation : n. 1. 【植物；植物學】營養體生長，發育；〈集合詞〉植物，植被，植生，草木。2. 無所作為的生活，單調的生活。3. 【醫學】贅生物，增殖體。adj. -al
- period : n 1 時代；期；時期；期間；階段。2 〈the period〉現代，當代。3 周期；【地質學；地理學】紀。4 終結...
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Vegetation dynamics and soil characteristics of different period abandoned land was conducted in typical steppe at xilinguole league and meadow steppe at hulunbeier league, inner mongolia. the results showed : the function community of annual plants, perennial rhizornatous grasses and perennial rosette grasses were appeared at different succession stage of abandoned land in typical steppe and meadow steppe
本試驗分別在內蒙古錫林郭勒盟典型草原帶和呼倫貝爾盟草甸草原帶對不同撂荒年限的撂荒地植被動態及土壤特性進行了研究，目的是探討草原區撂荒地植被演替的規律，為撂荒地植被的重建提供理論依據。 -
Thermal, precipitation and humidity affected vegetation types and it ' s distributing, while vegetation types choosing terrene - ecosystem. as the drive power will change along with different space - time scale, we must base on specifically district and period, when study on the drive power of terrene - ecosystem development
熱量、降水和濕度決定著地表植被類型及其分佈，植被類型決定著陸地生態系統，而促成地球陸地生態系統演變的驅動力隨著時空尺度的不同會有變化。 -
According to the re - analyses on pollen assemblages and archeological evidences in the site and related documents, this paper reconstructs the sequence of fossil pollen - pollen - vegetation - paleoclimate during the prehistoric period, emphatically discussing environment changes, the space - time distributed law on archaeological sites, the origin of culture fault and formation mechanism
本文根據孢粉學和考古學證據，結合相關文獻資料，從古地理學、考古學、歷史學等綜合研究的角度，重建史前時期化石花粉? ?孢粉植被? ?古氣候環境的演變序列，著重探討太湖流域新石器時期的環境變遷與古文化遺址的時空分佈規律、文化斷層的成因及其機制。 -
( 5 ) since 3100 ab. r, through comprehensive analysis of these proxy climatic substitute indexes indicates : this was a dry and cold period in which the temperature fell the precipitation decreased ; the vegetation may be forest prairie ; human civilization further developed and the human " s influence on the environment was greater in intensity and wider in range
今，綜合多氣候代用指標和本期人類活動明顯加強情況的分析表明：本期氣候再次出現溫度降低、降水量減少的變化，在趨于乾冷氣候條件下，在前期氣候較適宜期發育的森林植被發生了退化，當時的植被可能為森林草原或乾草原。 -
( 3 ) 6000 - 5000ab. p, through comprehensive analysis of these proxy climatic substitute indexes indicates : this was a dry and cold period in which the temperature was the lowest and the precipitation was the least ; the vegetation may mainly be forest prairie ; in the early stage of the period appeared yangshao middle culture - the prosperous culture of miaodigou type, and in the late stage there was yangshao late culture - the culture of xiwang village type
P出現了老官臺文化，中後期即本區老官臺文化之後，出現了仰韶早期文化。門） 6000 5000ab p ，綜合多氣候代用指標的分析結果表明：本期氣候為全新世以來溫度最低、降水量最少的最乾冷時期，在這種乾冷氣候條件下，在前期氣候最適宜期發育的森林植被發生了退化，當時的植被可能以森林草原為主。 -
The study also reveals the relationship between pasture ' s growth period, yield and their relation to weather factors and the evolvement characters of grassland vegetation under the background of drought climate, and refers to the main factors of the influence on grass - turn - green period as water condition in qinghai lake areas, and the main factors as the quantity of heat in the southern area of qinghai. because of the drought in the " three rivers source area ", the growing season is shortening and the production of the grass is decreasing clearly
揭示了牧草生育期、產量以及群體結構與氣象因子之間的關系和氣候乾旱化影響下草場植被的演變特徵，提出了影響環湖地區牧草返青期的主要因子是水分條件，影響青南地區牧草返青的主要因子是熱量條件， 「三江源」地區由於氣候乾旱化，導致牧草生長季呈縮短趨勢，牧草產量明顯下降。 -
In this paper, the changes of vegetation and soil nutrition in the early period of restoration of wasteland in longqingxia, yanqing county were studied
摘要對延慶縣龍慶峽荒灘恢復初期植被和土壤特徵的變化進行了研究。 -
( 4 ) 5000 - 3100ab. r, through comprehensive analysis of these proxy climatic substitute indexes indicates : this was another warmth and humidity period in which the temperature risen and the precipitation decreased, but the warmth and humidity were not as proper as those in the best period mentioned above ; the forest vegetation may recovered ; there were flood sediments in the dust in the early - middle stage of the period ; in the early stage was longshan culture, and in the early - middle stage the human culture developed and it entered into period of xiashang civilization
（ 4 ） 5000 3100ab p ，綜合多氣候代用指標的分析結果表明：本期氣候表現為溫度升高、降水增大的變化，但溫濕程度總體上不如前面的最適宜期；植被可能恢復到森林景觀；在早中期粉塵沉積過程中有洪流沉積。早期為本區的龍山文化期；期間的洪水事件可能進一步強化了人地關系，並進而推動了本區人類文化的發展而進入夏商人類文明時期。 -
Duration of ungrazing period in the spring affects the flourishing of the pasture vegetation, though not very vigorously
同時，禁牧期的長短對草原植被也有一定的影響，但是不顯著。 -
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:研究區內灌木植物生長曲線呈s型，生長停滯期在4月左右，生長指數期在5月到7月，生長靜止期在8月到10月， 10月前後停止生長。 -
Whether the geleshan tunnel ' s lots of water invasion during construction period brings about surround ground water or underground water drying, threatens sixty thousands persons and two hundreds enterprises " existence, and more leads vegetation to regress, or brings about ground ' s collapse, etc. is the necessary problem should be considered during the tunnel construction
因此，歌樂山隧道在施工期間是否會由於隧道大量涌水，導致周圍地表水、地下水的疏干，威脅到山上6萬多居民和200多家企事業單位的生產生活。進而可能造成地表植被退化，甚至引起地表塌陷等多方面的負面影響，是隧道施工中必須考慮的問題。 -
There were two stages with the obvious change velocity of plant species : the period of 15 - 25 years and the period of 40 - 50 years. the biological spectrum of vegetation in shapotu region was not complete
該研究區植物生活型譜不完整，以高位芽植物和一年生植物為主，輔以少量的地面芽植物，沒有地上芽和隱芽植物。 -
The thesis draws the following conclusion : ( 1 ) 11500 - 8500ab. p., through comprehensive analysis of these proxy climatic substitute indexes reveals : this was a period in which the temperature risen and the precipitation increased, but it was mainly still dry and cold ; the vegetation was prairie or forest prairie ; there were flood deposits in the dust sediments of late stage ; and it was the shifting period from the new stone age to the old stone age
主要得到以下幾方面的認識： （ 1 ） 11500 8500ab . p . ，綜合多氣候代用指標分析的結果表明：本期氣候表現為溫度升高、降水增大的好轉時期，但總體上仍以乾冷為主；結合很少發現較粗顆粒木炭屑的情況推斷當時的植被是草原或森林草原；研究發現在後期粉塵沉積過程中有洪流沉積。 -
( 2 ) 8500 - 6000ab. p, according comprehensive analysis of these proxy climatic substitute indexes shows : this was a period in which the temperature was the highest and the precipitation was the greatest ; there appeared forest vegetation ; in the middle stage of the period was laoguantai culture ; and after that there appeared yangshao early culture
（ ） 8500 6000ab p ，綜合多氣候代用指標的分析結果表明：本期氣候為全新世以來溫度最高、降水量最大的最適宜期，在這種適宜的氣候條件下，發育了森林景觀。本期中期即7500 7000ab -
Both types of vegetation are characterized by dense plant community structure, short growing period and a low productivity
高山種類為主。植物低矮，群落結構簡單，僅為一至二層。 -
In the first section, the historical background of huai - si area before the establishing of tang dynasty was briefly related. in the second section, the author put his emphasis on the discussion of various natural conditions and their influence on this area in this period, such as physiographical and features, hydrological conditions, climate, soil and vegetation
重點探討唐代淮泗地區經濟發展的自然條件和社會條件，特別是對唐代淮泗地區的自然地理條件，從地文、地貌、水文、氣候、土壤和植被諸方面對經濟開發的影響作了較為詳盡的探討。 -
According to the derived spore - pollen percent diagram and spore - pollen concentration diagram, the sequence of vegetation change recorded in the malan loess of xishan mountain, beijing area is as follows : zone p1 : in this zone the herbal pollens were overwhelming and the total pollen concentration was relatively high, so the vegetation during this period was arid grassland
P3帶，該帶總體上花粉濃度較小，花粉濃度出現了多次波動，表明該時期氣候不穩定，植被在荒漠草原和乾草原之間變化。該帶可以分成下列5個亞帶： p3 ） ， p3 2p34pm和p3 5 。 -
This article explore the relation in such respects as the soil moisture content and relation of respect, type of vegetation and thickness, etc. since surveying setting about of soil moisture content, announce the development characteristic and the law of period changing of the moisture content of the soil in karst area, thus put forward the constructive suggestion to ecological environmental protection of the karst area
本文從土壤含水率的實測著手，探索了土壤含水率與植被類型、土壤厚度等方面的關系，揭示了喀斯特土壤含水率的發育特徵與時段變化規律，從而對巖溶地區的生態環境保護提出了建設性意見。 -
The landscape pattern of change on the fraction of green vegetation during this period was studied using a landscape pattern analysis program fragstats by analyzing path size, number of patches, shape metrics and landscape heterogeneity metrics to show the changing feature of landscape pattern. all of these results of indices analysis emphasize that the eco - environmental system in beijing mountain area in a whole is stable and the fragmentation and heterogeneity level in the last five years is decreasing
本文在fcdmappingmodel原理和方法的基礎上，利用1994年和1999年的兩期landsattm數據，對北京北部山區昌平區、懷柔縣、密雲縣、平谷縣和西部山區門頭溝區的植被覆蓋率進行了計算，並利用fragstats軟體對其景觀變化過程從斑塊大小、數量、形狀和景觀異質性等角度進行了時空格局變化的剖析。
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