漠境帶 的英文怎麼說
中文拼音 [mòjìngdài]
漠境帶
英文
desert zone-
The results showed that the mean proportion of polymorphic loci ( ppb ) of anabasis aphylla, which comprised 3 subpopulations ( 58 individuals sampled ), generated by 16 primers was 94. 56 %, the value of ppb of ceratocarpus arenarius, which had 4 subpopulations ( 80 individuals sampled ), using 16 primers was 98. 00 %. the paper had proved that the higher genetic diversity and the genetic differentiation existed in the populations of boih anabasis aphylla and ceratocarpus arenarius, while the latter had much more genetic diversity than the former. moreover, the study discussed the shannon information index and nei ' s gene diversity index of the two species natural populations, which indicated that there were more genetic variations within the subpopu
另外,通過rapd資料的聚類分析及相關性分析研究,發現無葉假木賊和角果藜自然種群的遺傳結構與綠洲沙漠過渡帶的微生境生態因子(主要是土壤因子)相關,其中無葉假木賊亞種群遺傳多樣性水平不僅與土壤含水量( w ) 、鉀鈉離子濃度( k + na )和氯離子濃度( cl )呈顯著的正相關( p 0 . 05 ) ,還與土壤中有機質( som ) 、全氮( nt )和全磷( pt )含量呈顯著的負相關;同時,角果藜種群的遺傳多樣性水平與土壤中有機質( som )和全氮( nt )含量呈顯著的正相關,而與co _ 3 ~ ( 2 - )濃度呈顯著的負相關;除此之外,其它土壤生態因子與兩物種遺傳多樣性水平的相關性均不顯著(卜0 . 05 ) 。Thephoenixsuns : the natural environment of phoenix is a torrid desert
鳳凰城太陽隊鳳凰城所處的自然環境是熱帶沙漠。The mechanism about seed actual reproduction and artificial restoration under disturbance was investigated by using systematic sampling in the typical area of reaumuria soongorica population at mid - young age in desert grassland region, according to two similar habitate involved five different disturbance characteristics
摘要2003年7 10月,選擇黃土丘陵區荒漠草原地帶兩個相似生境、 5個不同干擾特徵的中幼齡紅砂種群更新恢復類型區為研究物件,採用系統取樣法或樣行法,開展了干擾條件下的紅砂種群種子更新與恢復機理的初步研究。Sean vetter vin diesel and demetrius hicks larenz tate are a pair of dea agents who think they ve made the bust of a lifetime when they capture gu.
3x反恐暴族班底逼埋墻特警忍無可忍,眼火爆理智全面失控誓要以暴易暴,趕盡殺絕美國和墨西哥的邊境的荒漠地帶,由於地理位置.Along the way, neelkanth experiences the harshness of india s land, which contains every type of habitat on earth - from the freezing temperatures of the himalayas to the scorching hot deserts to dense tropical rainforests - staying committed to a life of yoga and self - discipline while sharing his insights with others
尼迦提沿途歷盡印度各種惡劣環境由冰封的喜瑪拉雅山炙熱乾旱的沙漠以至茂密的熱帶雨林。他以瑜珈修行的同時,亦與其他人分享自己的體驗。Personality is the spirit of a composition however, from the earty 20th century, when chinese was started as an independent subject, until to the end of the 1990 ' s the personality of wrong to the position " chinese as a refernce " the students as the target of compositon teaching has always been ignored due to the influence of at the same time, it is also influenced by the type discphine, the sclools " administration for examination only and the motle of teaching operation
個性是作文的靈魂。但由於「語文工具論」定位的偏差,同時受典型性原則、應試教育學校管理以及模式化教學操作的負面影響,從二十世紀初語文學科獨立設科開始一直到九十年代末,中學生作文個性一直是被忽視的作文教學目標。漠視個性的結果是中學生作文教學深深地陷入了困境而不能自拔,還給中學生的品德、情感和思維帶來諸多不良影響。It is surrounded by water on all sides and is home to big deserts, tropical rain forests, rugged mountains and rich grasslands
它四面環水,境內遍布遼闊沙漠、熱帶雨林、蒼莽群山和肥沃草原。Along the route which passes through the ngari plateau, known as the " roof of the world ", you can be fascinated by the circular - cone - shaped gold - colored peaks of the mount sangula, the vast green zharinamco lake, and the dawa lake surrounded by lush pastures, the snow - capped mount baling kangri, the mysterious guge kingdom ruins and the fantastic clay forest, as well as the holly mount kang kingpoche
沿途,桑木巴提山圓錐形的金黃色山峰,扎日南木錯遼闊清碧的湖面,達瓦錯豐美的水草,巴林網日群峰上的皚皚白雪,札達一帶神秘的古格遺址和荒漠而奇特的土林地貌,以及普蘭境內被多種教派譽為聖地的神山崗仁波劉昨聖湖瑪旁雍錯,都會傾倒前來游覽的旅人。The loess plateau of china is located at a transitional area where the semi - humid climate is changing into the semi - arid and arid climate
黃土高原地處半乾旱半濕潤向乾旱荒漠的過渡地帶,生態環境十分脆弱。Other attractions include a dual - climate conservatory, containing both a man - made tropical rainforest terraced with dense vegetation and flowering plants, and a " dry " plant house that replicates a desert
園內還有一個擁有雙重氣候的溫室,包括一個內里種植了茂密林木和花卉的溫室,營造出人造熱帶雨林的景緻,及模擬沙漠環境設計的乾燥植物溫室。It ' s significant to further the study of the environment evolvement and forming mechanism, and this helps to open out its ecological essential, protect and develop the oasis, lacated in the cross belt which converge northeaster and northwester, yutian oasis was threatened by the ilowing sand, and has the bad nature conditions the main purpose of the paper is applying fractal theory to research on the change of transitional belt between oasis and desert, which is a typical ecosystem in arid zone
而荒漠與綠洲之間的植被帶即過渡帶則最為敏感、完整地記錄了這兩大生態系統之間的相互作用與相互轉化,深入研究這一特殊地帶的環境演變過程、特徵及形成機制對于揭示其生態學實質、維護和發展綠洲具有重要的實踐意義。於田綠洲位於東北風與西北風的交匯地帶,受到流沙侵蝕的危害很嚴重,自然條件非常惡劣,生態環境異常脆弱,人民的生存環境受到了很大的威脅。It is bordered by the world ' s highest mountains, by deserts, and by tropical seas
它的邊境被世界上最高的山脈、沙漠和熱帶海洋所環繞。By contrast to the data of the past years " fieldwork, we have analyzed the environmental changes and the desertification degree of the study area in the past 25 years, and extracted the precaution line of the oasis " s environmental evolvement
結合歷年來實地考察結果,本文從自然與人文兩個角度研究了該綠洲近25年的環境變化和荒漠化程度,根據生態系統內部諸因子的相關性以及綠洲與荒漠兩大生態系統間的耦合機理,提取了該綠洲-荒漠過渡帶生態環境變化的預警線。This research provides an analysis of the integrated mechanism of the emergence and expansion of the different types of desert lands, and compares this mechanism with the theory of ecotone. the paper discusses the relationship between ecological fragility and desertification. it concludes that with the environmental vulnerabilities, ecotone lands are easily desertified under the adverse human exploitation. because exploitation of the ecotone lands makes the environment more vulnerable, human should act to use the lands in a way compatible with the environment. the control of desertification is also discussed
在聯合國對荒漠化定義的基礎上,分析了各種類型荒漠化土地形成發展的綜合機理和環境的脆弱特徵,並聯系生態脆弱帶理論闡釋了生態脆弱性和荒漠化發展的關系,認為土地的脆弱性是荒漠化的基質,人類不合理的開發是荒漠化的誘因,而荒漠化進一步使環境更加脆弱。最後給出了荒漠化治理的措施和建議。The study used method of analysis landscape structure to describe the difference of the two marginal regions, and with it, to expose different mode of ecological environment responding to variety of climatic and anthropic activity, which happened in two marginal regions being part of ecotone in the semi - arid or arid of the north china
試用景觀生態學中景觀格局分析方法對這種差異進行描述,通過對兩大沙漠邊緣帶土地利用土地覆蓋格局變化對比研究,力圖揭示我國北方乾旱區與半乾旱區沙漠邊緣生態脆弱帶生態環境對氣候與人類活動變化表現出的不同響應方式。We suggest that when beginning forestation in arid region, firstly does it in transition field between oasis and desert, then in sensitive climate field, lastly does it by oasis - desert mosaic nesting
因此,在乾旱區生態環境建設過程中,應首先建設綠洲?沙漠過渡帶,同時注意綠洲和沙漠的空間結構和配置,以達到生態和氣候的相互作用有利於改善環境的目的。分享友人