黃土性土壤 的英文怎麼說

中文拼音 [huángxìngrǎng]
黃土性土壤 英文
loess soil
  • : Ⅰ形容詞(像絲瓜花或向日葵花的顏色) yellow Ⅱ名詞1 (指黃河)short for the huanghe river:黃泛區the...
  • : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
  • : 名詞1. (土壤) soil 2. (地) earth 3. (地區) area 4. (姓氏) a surname
  • 黃土 : [地質學] loess黃土保持 loess conservation; 黃土地 loessland; 黃土地基 loess foundation; 黃土地貌 ...
  1. Younger leaves faded green and lusterless ; older leaves marginal scorch, interveinal blotchy chlorosis, necrotic patches bleaching and withering ; characteristic of some soil acidity conditions

    甜菜錳和鋁合併中毒:幼葉褪綠失去光澤,老葉邊緣枯,脈間有壞死褐色斑點,接著白化,枯萎。這是酸特有的。
  2. The elementary idea of the reference units method can be described as follows : firstly, by the setting of double series of reference units, we can control the highest and lowest land quality class of each village or town ; secondly, the class of the arable land will be get through the contrast between the arable land with the reference unit which has been selected in the same area, the difference in quality is the key factor to classify the land. the results show, 87. 6 % of the lands from i to iii distribute on alluvial and lacustrine plains, where the associated soils are mainly grey fulvo - aquic and calcareous concretions black ones. and 61. 4 % of them from iv to vi distribute on slightly rolling parts with mainly yellow - cinnamon soil developed from the diluvial and slope deposits

    分等結果表明:臥龍區等的耕地中,有87 . 6分佈在沖積、湖積平原區,主要類型是在河流沖積物上發育形成的灰潮、在湖相沉積物上發育形成的砂姜黑;等耕地中,有61 . 4分佈在壟崗區,主要類型是洪坡積物上發育形成的:而、等耕地集中分佈在丘陵區,主要類型是殘坡積物上發育形成的粗骨,等別結果分佈總體上體現了不同地貌類型、條件下耕地質量的差異。
  3. Rhizosphere soil nutrient and enzyme activity in mixed forest of casurina equisetifolia and pinus elliotti

    木麻濕地松混交林的根際養分和酶活研究
  4. Under applying k 200mg / kg, k fixation capacity of four soils strengthened with drying and wetting cycle and temperature increasing, so, the availability weakened. in general, capacities of fixing potassium of soils in turns were : heir lu soil > lou soil > loessial soil > aeolian sandy soil

    在施鉀量為200mg kg的情況下,干濕交替對四種鉀的有效影響程度由大到小依次為:、黑壚綿、風沙
  5. The research of soil degradation in pur country is mainly concentrated on the red earth hilly area in the south in the past, and is less on the loess plateau that is one of the most fragile areas. based on field experiment and laboratory analysis, discuses the degradation mechanism, and raises the methods of refreshing and reestablishing land productivity of huangshan soil in chunhua county of shaanxi. in the hope of serving development of western regions and ecological environment construction that concede the land to forestry ( the grass )

    我國以前對退化問題的研究主要集中於南方紅丘陵區,對生態環境最脆弱的高原地區的退化研究相對較少,故本文以高原地區陜西淳化縣的侵蝕?為對象,通過野外人工模擬降雨試驗和室內分析相結合的方法,探討了侵蝕?的退化機理,提出了恢復和重建?地生產力的途徑和方法,以期服務于西部大開發和退耕還林(草)的生態環境建設。
  6. Some soil microbial activity parameters and heavy metals contents were analyzed by principal component method. the results showed that the critical levels of cadmium and lead in red clayed soil and red sandy soil were 15 mg. kg - 1 and 0 - 15. mg. kg - 1, 200 mg. kg - 1and 200 - 400 mg. kg - 1, respectively. soil microbial populations and functional diversities of microbial community have changed to some extent under the stress of cadmium and lead pollution

    在本文中我們將供試紅的上述微生物活指標和2種重金屬含量進行主成分因子分析,其結果得出,紅泥和紅砂泥的微生物活鎘脅迫的臨界承載量分別為15mg ? kg ~ 1和0 15 ? mg ? kg ~ 1 ;鉛脅迫的臨界承載量分別為200mg ? kg ~ ( - 1 )和200 400mg ? kg ~ ( - 1 ) 。
  7. ( 2 ) there is stage of soil formation from the evolution of pedogenic environment in the weihe valley during holocene. soil formation shows the law of evolving from warm and wet strong soil formation period to cold and dry dust deposition period ( weak soil formation period ) and to warm and wet strong soil formation period again. the loess - soil sequence is a compound soil sectional system of different kinds of soil evolution under different bio - environment and pedogenic processes

    ( 2 )通過對全新世渭河流域成環境演變問題的討論,揭示了全新世渭河流域的發育具有階段,表現為由溫濕的強成期向冷乾的沉積期(弱成期)演變、再向溫濕的強成期演變的規律;一古序列是不同生物氣候環境下、不同成過程發育的不同類型演替而形成的復合型剖面體系;而且由於冬夏季風環流及其環境效應在空間上的差異,使得復合型剖面體系也存在著南北差異。
  8. Responses and evolution of soil enzymatic activities during process of vegetation recovering

    丘陵區植被恢復過程中酶活的響應與演變
  9. Soil anti - erodibility indexes of hippophae rhamnoides forest in loess plateau

    高原沙棘人工林地抗蝕指標探討
  10. Soil anti - erodibility of plant communities on the removal lands in hilly - gully region of the loess plateau

    丘陵溝壑區退耕地植物群落抗蝕研究
  11. It divides the main vegetation of the headwater region of huangpu river into 4 categories based on field survey and observation and methods of factor analysis and systematic cluster analysis and according to the degree of soil and water conservation function : deciduous trees and shrubs are category 1 which shows very strong soil and water conservation function ; tea plantation, grasslands and pine trees are category 2 which has stronger function ; the category 3 is moso bamboos and broadleaved evergreen trees which have stronger permeability and erodibility, but the permeable performance is not outstanding, the capacity of soil moisture storage common and soil and water conservation function moderate and ; the category 4 is uncovered land where the soil and water conservation function is very weak and its permeability, erodibility, erosive resistance and soil moisture storage capacity are all notably smaller than that of the other lands

    摘要在野外調查、實測的基礎上,採用因子分析、系統聚類分析的方法,根據層水保持功能的強弱,將浦江源區主要植被類型分為4類:落闊林、灌木林為第一類,表現出很強的水保持功能;茶園、草地、松林為第二類,保持功能較強;毛竹林、常綠闊葉林表現出較強的抗蝕和抗沖,但滲透能並不突出,貯水能力也一般,水保持功能中等,為第三類;裸露地水保持能很差,單獨作為第四類,其滲透、抗蝕、抗沖水庫容都顯著小於其他各樣地。
  12. This paper systematkally researched the characteristics of growth and physiology of sophora viciifolia hance ( a kind of natural shrub ) and its effects on the content of soil water, soil nutrieftt and soil physical property. the paper applied some methods and theory of plant ecology, plant physiology, physics of soil and soil chemistry etc. three different age s. viciifolia hance in the different plot were selected, caraganar land and fallow land as a comparison

    本文以陜北區安塞紙坊溝流域內在植被演替中佔有重要地位的天然灌木種( 6 、 14 、 17齡)狼牙刺( sopharaviciifoliahance )為對象,以15齡檸條( caraganar )和撂荒地為對照,系統研究了狼牙刺的生長特徵、生理特,及其生長對水分、養分、物理狀的影響。
  13. From the foot to the top of jinfo mountain, the soils appear as yellow soil, dark yellow soil, yellow brown soil and brown soil

    分帶主要表現為:從山下向山頂依次為、暗和棕
  14. Studies on population ecology showed that d. versipellis is able to grow on the hillsides of subtropical broadleaf or acicularleaf secondary forest where soil is fertile and the content of n, p, k is high and the ph is 5. 49 - 6. 59

    種群生態研究表明八角蓮適宜生長的為中偏酸( ph5 . 49 6 . 59 ) 、有機質含量為7 . 34 33 . 33和n 、 p 、 k養分含量高的;其生長環境的植被為亞熱帶針葉混交林,伴生植物多為當地優勢種。
  15. Experiment on cucumber in greenhouse showed that, compared with traditional flooding and fertilization techniques, technology of integrated management of water and fertilizer on cucumber in greenhouse could save water and fertilizer, reduce relative humidity of greenhouse and heat loss, improve physical and chemical property of soil, it could increase yield and improve quality of cucumber, raise income and reduce cost

    摘要通過水肥一體化技術與傳統畦灌沖施肥技術對比試驗分析,明確了大棚瓜水肥一體化技術效應主要是節水、節肥、節藥、降低棚內空氣濕度和保持棚內氣溫,有助於理化狀的改善,取得提高產量和品質、減少投資、增加收入等效應。
  16. ( 3 ) soil erosion assessing systems and evaluating water - soil safety models have been first raised in the stackpile of large opencast mine within loess area

    ( 3 )初次建立了我國區大型露天礦排致災因子指標體系和水安全評價模型
  17. From 1950s , geographical - genetic classification theory originated from the former soviet union exerted its extreme impact on soil classification of china

    在地理發生分類體系中,按生物氣候氣候條件,熱帶、亞熱帶地帶分別為燥紅、紅、赤紅和磚紅
  18. 2 the leaching and vertical transport of 95zr in three representational soils ( paddy soil, red - yellow earth and sea mud ) in zhejiang province and the influence of salinity on the activities of 5zr in sea mud were studied with soil - pole installation

    2 、採用柱法研究了~ ( 95 ) zr在浙江省有代表的3種(小粉、紅和海泥)中的淋溶和垂直遷移及鹽度對其行為的影響。
  19. The content of fixed ammonium, capacity of fixing - ammonium, available fixed ammonium, kinetics of ammonium fixation and release of fixed ammonium of chief upland cultivated soils in hunan province were studied by using the method of field investigation and sampling, laboratory incubation and analyses. the seasonal change of fixed ammonium content in soil and _ its bioavailability in different growth stage of huanghuacai by use of field plot experiment

    本文通過野外調查取樣、室內培養試驗和分析測定,研究了湖南省主要旱耕地的固定態銨含量、固銨容量、有效固定態銨含量以及對銨離子的礦物固定和固定態銨釋放的動力學特,通過田間小區試驗,研究了不同施肥結構下固定態銨在花菜生長期間的動態變化規律及其生物有效
  20. Presently, the scientist have made out some successes by using biotechnology and molecuology, for example, planting out regeneration shoots, culture suspended cell in ferment tank, screening mutant tissue with high content of flavonoids, cloning and sup - expression of key enzyme, restraining derivative pathway by anti - dna or anti - rna and inducing genetic transformated hairy root

    通過培養水母雪蓮的發狀根將是獲得雪蓮類酮極有前途的方法,目前還是一項待填補的空白。發根農桿菌( agrobacteriumrhizogenes )是一種革蘭氏陰細菌,細胞內有200kb左右的雙鏈閉環dna ? ri質粒( rootinducingplasmid ) 。
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