深層土壤水 的英文怎麼說
中文拼音 [shēncéngtǔrǎngshuǐ]
深層土壤水
英文
deep subsoil water- 深 : Ⅰ形容詞1 (從上到下或從外到里的距離大) deep 2 (深奧) difficult; profound 3 (深刻; 深入) thor...
- 層 : i 量詞1 (用於重疊、積累的東西 如樓層、階層、地層) storey; tier; stratum 2 (用於可以分項分步的...
- 壤 : 名詞1. (土壤) soil 2. (地) earth 3. (地區) area 4. (姓氏) a surname
- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 深層 : deep (layer); deep (stratum)深層采水 [海洋學] deep-casting; 深層語法 deep grammar
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At the same time, the quality of different - state water was studied. the results show : the soil bulk density of the fir wildwood heightens with the increase of soil depth, specifically 0. 74 > 0. 94 andl. 34g / cm3, the saturated, canaliculus and field moisture contents decrease gradually in layer a, b and c, accordingly the soil total foveola decreases gradually, and the moisture - hold capacity of the soil lessens gradually with the increase of the soil depth ; there is small difference of the soil bulk density between layer a and b in the outer space, which are respectively 0. 92 and 0. 99g / cm3, and the other laws are the same as the in ner in the main ; reverse success often occurs in the low position of the thoroughly - fell trace and plateau marsh is formed
結果表明:冷杉原始森林土壤容重隨土層深度的增加而增大,分別為0 . 74 、 0 . 94 、 1 . 34g cm ~ 3 ,飽和持水量、毛管持水量、田間持水量a層、 b層、 c層逐漸減小,十壤總孔隙度也逐漸減小,土壤的持水能力隨深度的增加逐漸減弱;林外空地a層、 b層十壤容重相差不人,分別為0 . 92和0 . 99g cm ~ 3 ,其它規律與林內人體相同:皆伐跡地的低洼地段容易發生逆行演替,形成高原沼澤地。The results indicated : ( 1 ) during the jointing stage of winter wheat, the differences of catalase activity among different measures of soil water utilization are significant in shallow soil, in which the catalase activity of furrow planting with straw mulch is the highest and that of row - spacing - reduced and close planting is the lowest ; ( 2 ) the trends of catalase activity versus depth are almost the same for different treatments, looking like an inverse s ; ( 3 ) for furrow growing without mulch, the activity of soil catalase in the furrow is higher than that in the ridge ; ( 4 ) soil catalase activity reflects some effects from different techniques of soil water utilization and may be used as a indicator for micro - eco - environment in the fields
初步分析得出: ( 1 )冬小麥拔節期,採用不同土壤水利用技術的冬小麥田淺層土壤過氧化氫酶活性差異明顯,以溝播不蓋秸稈處理的過氧化氫酶活性最強,縮行密植處理的最弱; ( 2 )土壤過氧化氫酶活性隨深度的變化趨勢大體一致,呈反s形; ( 3 )溝播不蓋秸稈處理溝中土壤過氧化氫酶活性明顯高於壟上; ( 4 )土壤過氧化氫酶對於田間微生態環境具有指示作用,在一定程度上反映了土壤水利用技術對微生態環境的影響。Since deep plowing of well - drained soils quickly decomposes organic matters in top soils, additional organic matters are needed
因深翻排水良好的土壤使表層土壤中有機質迅速分解,所以必須施用有機質。In addition, bare land covered with weed would delay runoff - yielding time, increase infiltrated water, and make soil water move deeper
裸地坡面覆蓋雜草,能延緩產流時間、增加入滲,並促進土壤水分向深層的運移。( 7 ) during the process of water consumption, soil water almost lost from the whole profile. the great depth that resulted from evapotranspiration formed soon, but not gradually. infiltrated water was mostly consumed by evapotranspiration during ra
( 7 )在以土壤水分消耗為主的時期,土壤蒸發時水分的整體移動性能較強,最大蒸發蒸騰作用層深度很快形成,並不是一個「由淺而深」的漸進過程。The content of soil water in the 10m profile shows : the content of soil water is high in 4 - 6m, there is a soil - drying - layer in 6 - 8m profile which was formed in the frontal stage of s. viciifolia growth
和檸條相比,狼牙刺地淺層( 3m內)土壤水分虧缺程度較輕,干層超過10m ,比同齡的檸條要深。Meanwhile, most aspects about this perspective are concerned, which include quantification of the soil water background of the plateau area, the regional spatial variation of soil water background and variation along the slope, mosaic structure and seasonal changes etc. the results show that : ( 1 ) for the fundamental circumstance for vegetation development is the original debilitated slope, so the perspective of soil water background specially for the loess plateau refers to the soil water conditions on the original slope. ( 2 ) the value of soil water background appears to be a descending trend from south to north based on the difference of vegetation zones. in the forest zone, soil moisture contents beneath 3m depth from the soil surface are more than 12 % usually ; in the forest - pasture zone, the values of soil moisture content beneath 4m depth underground are more than 6 % and stable, and tend to be ascending while the depth increases ; but the values in the dry pasture zone is lingering between 4 % to 6 % from the surface layer to sub - layers
發展了「土壤水分背景」的概念,並以之為基礎對其各個方面進行了研究,使之形成一個相對獨立和完整的體系,主要包括黃土高原土壤水分的背景值、土壤水分背景的區域分異、坡面分異、鑲嵌結構及其季節分異等: ( 1 )由於植被生長發展、演替的基礎階段是天然草被群落,故認為黃土高原的土壤水分背景在概念上是特指該區天然草被群落下的土壤水分狀況; ( 2 )黃土高原的土壤水分背景值,根據植被地帶的不同表現出自南向北逐漸降低的規律:森林地帶3米以下土層水分背景值普遍穩定地高於12 ,森林草原地帶4米以下土層水分背景值穩定大於6 ,且均隨土層的加深水分含量逐漸增加,而草原帶的土壤水分背景值自土表至底土層一直在4 6之間徘徊。Compared to bare land, soil water cycling on grassland with intensive transpiration was deeper in depth and greater in intensity
與裸地相比,荒草地由於植被強烈的蒸騰作用,其土壤水分循環強度加劇,表現為活躍層、次活躍層以及蒸發蒸騰作用層深度增大。On the loess plateau, water is the main limiting factors for vegetation growth. root distribution characters have special ecological meaning as it reflected the utilizations of trees to the environments. even - aged stands of robinia pseudoacacia on slope lands facing south and north were selected as sampling plots for root distribution investigation. investigatiing results showed that indicated that on all sites, root biomass decreased with depth, and the distribution depth of fine root was deeper than that of coarser root. the results of variance analysis indicated that there were great differences in root biomass among different diameter classes, and coarser root was the main sources of variance, and the root biomass, especially fine root ( < 3mm ) biomass on northern exposition sites was bigger than that on southern exposition sites. analysis of the vertical root distribution parameters, root extinction coefficient, indicated that the value of on northern exposition was more than 0. 982, while the value of on southern exposition was less than 0. 982, which indicated that the vertical root distribution depth of robinia pseudoacacia on southern exposition was deeper than that on southern exposition. and the distribution depth of fine roots ( < 1mm ) was deeper than that of thicker roots ( < 3mm ), which was in favor of the uptake of water and nutrients from deeper layers, helped the trees to adapt the arid environment, and promoted the growth of the upper parts of the tree
在中國西北黃土高原地區,水分是樹木生長發育的主要限制因子.根系分佈特徵由於反映了樹木對環境條件的利用程度而具有更加特殊的生態意義.本研究選擇陽坡和陰坡不同立地上年齡一致的刺槐林調查了根系分佈特徵.根系垂直分佈特徵的調查結果表明,在所有立地上,根系生物量隨著深度的增加而降低,其中細根的分佈深度大於粗根的分佈深度.方差分析結果表明:不同立地上不同徑級根系的分佈特徵也有明顯的差別,粗根是差異存在的主要原因,陰坡立地上的根系生物量,特別是細根生物量大於陽坡立地上的.對根系消弱系數的分析結果表明,陰坡立地上的根系消弱系數大於0 . 982 ,而陽坡立地上的根系消弱系數小於0 . 982 ,說明陰坡立地上刺槐根系的生物量在深層土壤中的分佈相對量更大一些.其中細根的根系消弱系數大於粗根的,這種根系分佈特徵有利於根系對深層土壤水分養分的吸收利用,進而促進樹木地上部分的生長發育.圖3表3參15Abstract : on the loess plateau, water is the main limiting factors for vegetation growth. root distribution characters have special ecological meaning as it reflected the utilizations of trees to the environments. even - aged stands of robinia pseudoacacia on slope lands facing south and north were selected as sampling plots for root distribution investigation. investigatiing results showed that indicated that on all sites, root biomass decreased with depth, and the distribution depth of fine root was deeper than that of coarser root. the results of variance analysis indicated that there were great differences in root biomass among different diameter classes, and coarser root was the main sources of variance, and the root biomass, especially fine root ( < 3mm ) biomass on northern exposition sites was bigger than that on southern exposition sites. analysis of the vertical root distribution parameters, root extinction coefficient, indicated that the value of on northern exposition was more than 0. 982, while the value of on southern exposition was less than 0. 982, which indicated that the vertical root distribution depth of robinia pseudoacacia on southern exposition was deeper than that on southern exposition. and the distribution depth of fine roots ( < 1mm ) was deeper than that of thicker roots ( < 3mm ), which was in favor of the uptake of water and nutrients from deeper layers, helped the trees to adapt the arid environment, and promoted the growth of the upper parts of the tree
文摘:在中國西北黃土高原地區,水分是樹木生長發育的主要限制因子.根系分佈特徵由於反映了樹木對環境條件的利用程度而具有更加特殊的生態意義.本研究選擇陽坡和陰坡不同立地上年齡一致的刺槐林調查了根系分佈特徵.根系垂直分佈特徵的調查結果表明,在所有立地上,根系生物量隨著深度的增加而降低,其中細根的分佈深度大於粗根的分佈深度.方差分析結果表明:不同立地上不同徑級根系的分佈特徵也有明顯的差別,粗根是差異存在的主要原因,陰坡立地上的根系生物量,特別是細根生物量大於陽坡立地上的.對根系消弱系數的分析結果表明,陰坡立地上的根系消弱系數大於0 . 982 ,而陽坡立地上的根系消弱系數小於0 . 982 ,說明陰坡立地上刺槐根系的生物量在深層土壤中的分佈相對量更大一些.其中細根的根系消弱系數大於粗根的,這種根系分佈特徵有利於根系對深層土壤水分養分的吸收利用,進而促進樹木地上部分的生長發育.圖3表3參15Deep rooting of rice plant made easy to absorb more nutrients from deep soil layers, and protected the plant from lodging at reproductive stage
深根水稻植株從深層土壤中吸收更多養分、並保護植株在生殖生長階段不倒伏。The approaches establish a relationship between monthly precipitation abnormality and monthly circulation, soil moisture and temperature on the shallow and deep layers. the relationship is the precipitation diagnostic equation and its coefficients and dimensions are determined by using the observed data of huai river basin. then we select the main soil moisture and temperature attributing factors by the dimensional analysis to establish a forecasting equation of summer precipitation over huai river basin with the statistic approach
通過將大氣中的熱量、水汽收支方程與一個簡化的兩層土壤溫度、濕度方程相結合,並依據月尺度大氣環流的演變特徵,推導出月降水距平與500hp月平均高度距平場、土壤深淺兩層溫、濕度的關系;利用臺站觀測資料,使用統計反演方法確定方程中各項的系數和量級,從而找出影響降水的主要土壤溫、濕因子;利用統計方法建立這些因子與淮河流域夏季降水異常之間的簡單線性預報方程,並對1992 - 2000年淮河流域夏季降水趨勢進行回報。In this dissertation, rainfall infiltration, runoff, and soil water redistribution on a hillslope were studied by simulated rainfall experiments, and soil water cycling was investigated by site observation and soil sampling methods. moreover, the reasons for the desiccation of deep soil layer were analyzed, and its assessment indexes and standards were presented. the main results are as follows : ( 1 ) rainfall infiltration into a planar hillslope with a homogeneous isotropic soil could be simply regarded as one - dimensional infiltration process, if soil erosion was prevented
針對當前該區植被恢復重建中存在的科學問題,以植被建設的關鍵性限制因素?土壤水分為出發點,通過室內外模擬降雨試驗,研究了坡地降雨入滲、產流及土壤水分再分佈規律,同時採用定位觀測和采樣分析相結合的方法,分析了坡地土壤水分的循環與轉化特徵,並初步建立了深層土壤乾燥化程度的評價標準,取得的主要結論如下: ( 1 )在防止土壤侵蝕的條件下,均質坡地的降雨入滲過程可以簡化為一維。Because of rare rainfall, the plant absorbs water from deep soil and ground water with bulky root system for maintaining the physiological function
在降雨稀少的情況下,植物以龐大的根系,吸收深層土壤水分和地下水維持生理機能,保證正常的生長需求。On the condition of no effect from vegetation and form of slope, soil moisture increased down to the bottom of the catchment ; the vegetation diminished or even reversed this trend
對0 ? 2m土層不同植被類型各層次土壤水分的季節動態對比發現,表層和各植被類型的土壤水分利用層變化最為劇烈,深層土壤水分季節變化趨勢相對平穩。In loess plateau areas, dry and varied climatic condition was the main reason that resulted in the instability of soil moisture in surface layer. and because of the bad soil pedality and pore continuousness, the water in soil deep layers was difficult to supplement for that in surface layer. so, soil moisture of surface layer varied commonly and strongly
黃土高原地區乾燥、復雜多變的氣候條件導致該區土壤表層一定深度的濕度隨時空變化非常劇烈;而且,該區土壤的結構性和孔隙連續性都比較差,深層土壤水分難以到達表層,使得土壤表層處于經常性的干濕交替變化過程中。Water and salt transport in sand - layered soil under evaporation with the shallow under ground water table
蒸發條件下淺層地下水埋深夾砂層土壤水鹽運移特性研究Soil water irrigation minimum and scheming wetted soil layer depth were decided by soil physical properties and plant physiological property
灌溉補償點和計劃濕潤層深度據植物根系分佈、葉片氣孔導度與土壤含水量的相關性及土壤水分層次性等確定。With negative pressure gauge, neutron instrument and monitor research for depth of embedment of groundwater, we can obtain the changeable regulation of the soil moisture change in field and moisture use efficiency in field at childbearing period ; in five irrigation water, every time all has deep seepage, and the soil all can reach to saturation ; in childbearing period, the mutual change relation of irrigation water and groundwater is active
摘要通過負壓計、中子儀、地下水埋深監測研究,得出生育期田間水分變化規律及土壤水分利用效率; 5次灌水均有深層滲漏,土壤都能達到飽;在生育期間,土壤水和地下水相互轉換關系活躍。The results turned out to be : 1 ) swr soil moisture sensor have higher precision and stronger practical value. 2 ) different soil and different soil depth, soil containing water or moisture data is disciplinarian transform
試驗結果表明: 1 ) swr型土壤水分傳感器具有較高的精度和較大的實用價值; 2 )對于不同土質、不同的土層深度,土壤含水量都是呈規律變化的。分享友人