種子林 的英文怎麼說
中文拼音 [zhǒngzilīn]
種子林
英文
high forest-
They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem
本研究以重慶市的南川金佛山(自然保護區) 、黔江武陵山(國家重點退耕還林示範縣,森林覆蓋率50以上)和北碚中梁山(遭人為破壞嚴重)典型巖溶區為對象,選擇了幾種重要的利用方式,包括林地、果園、耕地、棄耕地和灌草坡,採用野外巖溶生態調查和室內試驗測量分析相結合的方法,以不同土地利用方式巖溶土壤肥力為重點,對不同土地利用方式土壤肥力特徵進行量化分析,找出巖溶土壤肥力差異的主要方面及其根本原因,論文主要從土壤剖面物理退化指標(有效土層厚度、有機質層厚度、質地、團聚體、水分含量等) ,化學肥力退化指標(有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等) ,樣地土壤微生物指標(細菌、真菌、放線菌數量及總量)以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究,為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。The grass, known as the brome of ardennes, bromus bromoideus, is belgium ' s only endemic species and was thought to be extinct until dave aplin, a british botanist working at the national botanic garden of belgium, came upon some preserved seeds by accident
是比利時地方特有物種。這種植物曾被認為難逃滅絕的危險,直到在比利時國家植物園工作的英國植物學家黛夫阿普林在偶然情況下發現了一些保存完好的植物種子后,雀麥草的命運才得以改變。Seed crops are collected from both natural stands and plantations which may have been culled to form seed stands.
種子采自天然林和人工林,兩者都可能是經過去劣留優作為母樹林的。The orchard is surrounded by spruce forest.
該種子園四周有雲杉林環繞。Personal collecting expeditions may be necessary to obtain seed for countries with smaller forestry programs.
林業規模較小的國家可能需要親自遠征採集才能得到種子。Only a few forest tree species can develop viable seed from unpollinated ovules.
只有少數林木可以從未授粉的胚珠發育成有活力的種子。Results 26 components from the oil in the seed of panax ginseng c. a. mey were identified
結果林下參種子油經分離鑒定出26種化合物。The abundant degree of plants, seed seedling amount, and the diversified index in the seed bank of the urban green land are lower than the natural second growth forest in outer suburbs
城市綠地土壤種子庫中種的豐富度、種子苗量、多樣性指數均不如遠郊區山地天然次生林。Seasonal soil seed bank dynamics in tropical forests in xishuangbanna
西雙版納熱帶森林土壤種子庫的季節變化Study on soil seed bank in enclosured hillsides for regeneration of karst areas
喀斯特封山育林區土壤種子庫研究In the method of measuring vigor, we mainly use vital capacity, germination percentage and seedling to assess seed vigor grade, vital capacity, germination percentage and seedling of seed reflect seed vigor
在種子活力檢測方法中,主要採用種子生吉林農業大學碩士學位論文玉米種子純度與活力快速側定的圖像識別與處理系統活力、發芽率和幼苗評定來評價種子活力高低。Seed zones of chinese forest trees - seed zones of picea asperate mast
中國林木種子區雲衫種子區Exhibits included landscape displays, bonsai type plants, flower arrangements, dry flowers, tree seedlings, seeds, fertilizers, pesticides and horticultural machineries, etc. the opening ceremony of the exposition was held on 28 september 2001
展品包括有園林景點、盆景、插花藝術、乾花、樹苗、種子、肥料、殺蟲劑及園藝機械等。The result shows it can raise seedling apparently, ability of fighting drought and growth, to dip in the afforestation of thick liquid with rpa ; dress and soak seed handling, can strengthen seed vigour, raise emergence rate and sprout rate, make sprout even sprout strong, raise the production potential of soil
摘要用rpa進行常規蘸漿造林,能顯著地提高苗木的抗旱能力和生長量;進行拌種和浸種處理,可以增強種子活力,提高出苗率和成苗率,使苗齊苗壯,提高土壤的生產潛力。The study shows that the early and late seed rains of constructive tree species in evergreen broadleaved forest at chongqing simian mountain had no activity. the bigger the seeds of the species and the earlier or later the seeds of the species matured, the higher the proportion of the seed rain damaged by animals. the quantitative variation of seed rain, active seed rain and seed bank did not take place at the same time. at early time, the number of seed banks of castanopsis fargesii, lithocarpus glabra, quercus myrsinrefolia, castanopsis plasyacantha, cinamomum subavenium. which own more active seed rain increased by geomitric series. the seed banks of castanopsis orthacantha and schima argentea were small, only survived a short time, and did not sprout next year. the quantitative dynamics of seed banks and their increasing or decreasing rates were decided by the proportion damaged by animals, dying speed of seeds and their resistance to pathogens and adverse circumstances, and the state of seed germination
對重慶四面山常綠闊葉林建群種種子雨、種子庫的研究表明,建群種早期和晚期的種子雨無活力;種子偏早或偏晚成熟及大籽粒的樹種,其種子雨被取食的比例大;種子雨、有活力種子雨、種子庫三者的數量變化不一致;有活力種子雨量較大的栲、石櫟、小葉青岡、扁刺栲、香桂等,其種子庫密度在早期以近幾何級數的方式增長,元江栲、銀木荷種子庫小,存在時間短,翌年無一年生萌發苗;種子庫數量動態、消減率動態決定於種子被取食的強度、種子衰老的速度以及種子對病菌、逆境的抗性和種子萌發的整齊性The sowing and seedling raising experiments of castanopsis hystrix seed with different artificial treatments showed 1 - year - old c. hystrix seedling average height and average dbh with the treatments of hastening germination and cutting root were 22. 0 % and 117. 0 % higher than those without the root cutting treatment, respectively, the individual - tree lateral root number increased by 127. 71 %, the afforested survival rate increased by 23. 0 %
摘要對紅錐種子採用不同人工處理的播種育苗試驗表明:紅錐種子經催芽斷根育苗處理后,其1年生苗木平均高和平均地徑分別比無斷根處理的高22 . 0 %和117 . 0 %單株側根數增加127 . 71 % ,造林成活率提高23 . 0 % 。The experimental results show that the characters of tree height, dbh, and volume, etc. of every family progenies of pinus massoniana seed orchard are all evidently higher than those of control ( ck ), 7 fine family materials whose volume growth exceeds the control ' s by 50 % are totally selected as the materials for building p. massoniana improved seed orchard and industrial raw material forest
摘要對漳平五一國有林場馬尾松種子園18個初選家系進行子代測定,採用隨機區組設計、 8次重復,對6年生的樹高、胸徑、材積等性狀進行測定,試驗結果表明:馬尾松種子園各家系子代均明顯高於對照( ck ) ,共選出7個優良家系材積生長超過對照50 %以上材料,作為營建馬尾松改良種子園和工業原料林的材料。On the other hand, the research of " forests and water " is from the aspects of the eco - hydrological models of forest ecosystem from, the viewpoint of forest ecosystem and combining with the research on forest structure, function, productivity, energy and material circulation, to explore the laws and internal relation of various forest hydrological phenomenon is the basic topic of research
另一方面在祁連山水源林生態系統長期定位研究的基礎上,以祁連山青海雲杉為代表運用森林生態學、森林水文學、生態經濟學、生態水文學等學科理論,通過建立單一因子的水文環境因子模型研究森林水文效應;從生態系統觀點出發,結合森林的結構和功能以及生產力和系統能量及物質循環的研究,揭示各種森林水文現象發生和發展的規律及其內在聯系。An example is mangroves, in which the seeds germinate into good - sized seedlings before they are released from the plant, enabling them to plunge far enough into the mud to establish themselves
例如紅樹林的種子可以在脫離母株前發育成相當大體積的樹苗,這使幼苗可以栽入足夠遠的淤泥中進行自身的鞏固發展。See zones of chinese forest trees - seed zones of pinus tabulaeformis carr
中國林木種子區油松種子區分享友人