sandy soils 中文意思是什麼
sandy soils
解釋
沙壤土-
Some soils, such as sandy soils, have a loose crumb structure with good drainage, whereas in clay soils the particles are small and stick together to give a dense crumb structure and poor drainage
一些土壤例如砂土具有鬆散的結構，因而有良好的排水性，而在粘土中，由於土壤顆粒小而互相粘合導致粘土結構緊密排水性較差。 -
One occupies relatively dry sandy loam soils.
一個則占據較乾旱的沙壤土。 -
From textural point of view, about 30 % soils are clayey, 35 % loamy and 10 % sandy while the remaining have variable texture
從質地上看，約30 %的土壤是粘土， 35 %是壤土， 10 %是砂土，其餘土壤質地龐雜。 -
The soils ( paleudults ) consist predominantly of light brown fine loamy sand to fine sandy loam changing with depth into a brown sandy clay loam and sandy clay with red mottles
土壤（強發育濕潤老成土）主要為淡棕色細壤質砂土到細砂質壤土，隨著深度增加，土壤變為棕色砂質粘壤土和帶有紅色斑點的砂質粘土。 -
The empirical equation w = asb was used to fit water holding capacity of four kinds of agricultural soils in loess plateau. soil water holding capacity and unavailable water content increased as soil texture became clayed. available water content in loam was higher than those in sandy soil and clayed soil
黃土高原四種主要農業土壤的水分特徵曲線並無明顯的平臺或拐點產生，其關系能夠很好地用garden經驗方程（ w = as ~ （ - b ） ）進行擬合。 -
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，干濕交替對四種土壤鉀的有效性影響程度由大到小依次為：土婁土、黑壚土、黃綿土、風沙土。 -
Magnesium deficiency most commonly occurs in acid, sandy soils in areas of moderate to high rainfall.
缺鎂常常發生在中雨量或高雨量區的酸性砂質土。 -
The concentrations of copper, lead and zinc in the shoot of e. splendens were affected by chemical and physical properties, such as full contents of heavy metals in soils, soil ph and organic carbon content, etc. the shoot can accumulate copper more on the red sandy paddy soil collected from dongxiang country, jiangxi province, than on silt paddy soil from fuyang country, zhejiang province. e. splendens took up much less copper from fuyang soils, the concentrations of zinc and lead in shoot were not also quite low
在酸性紅砂土上植物對銅的吸收和富集隨土壤銅含量的增加而顯著升高；而在銅、鋅、鉛復合污染的中性泥沙土上海州香薷體內銅含量和積累量不高，處于正常植物生長范圍內，植物體內鋅、鉛含量及其積累量也不高，海州香薷對重金屬的吸收和富集能力有限。 -
Since 1950s, changjiang water resources commission as well as other scientific research units have carried out engineering geological reconnaissance for large - scale cross structures and the whole route, meantime, researched special subjects, such as special soils ( expansive soil, loess ), the canal section in coal mining area, regional structure stability, sandy soil liquefaction etc
自20世紀50年代迄今，長江水利委員會及其它科研設計單位對中線工程全線及大型交叉建築物進行了工程地質勘察，同時對特殊類土（膨脹土、黃土） 、渠線過煤礦區、區域構造穩定性、砂土液化等專題進行了研究。 -
The number of 3 rhizosphere microorganisms ( bacteria, fungi, actinomycete ) and 5 enzyme ( catalase, protease, urease, phosphatase, invertase ) activities were studied during the whole life of corn plant in sandy loam, loam and clay soil textures. [ method ] using yedan22, the number of 3 rhizosphere microorganisms and 5 enzyme activities with different textural soils were investigated in a pond
摘要目的明確不同質地土壤（砂壤、中壤、重壤）玉米生育期間根際微生物（細菌、放線菌、真菌）數量與酶（脲酶、蛋白酶、磷酸酶、轉化酶、過氧化氫酶）活性的變化。 -
[ objective ] the number of 3 rhizosphere microorganisms ( bacteria, fungi, actinomycete ) and 5 enzyme ( catalase, protease, urease, phosphatase, invertase ) activities were studied during the whole life of corn plant in sandy loam, loam and clay soil textures. [ method ] using yedan22, the number of 3 rhizosphere microorganisms and 5 enzyme activities with different textural soils were investigated in a pond
摘要目的明確不同質地土壤（砂壤、中壤、重壤）玉米生育期間根際微生物（細菌、放線菌、真菌）數量與酶（脲酶、蛋白酶、磷酸酶、轉化酶、過氧化氫酶）活性的變化。 -
Finally, sulfur maybe a limiting element under cool conditions where clean air prevails, or in extremely sandy soils
最後，對于空氣清潔或砂質土壤的寒冷地區，硫可能會成為植物生長的限制性養分。 -
This research was conducted to : ( 1 ) understand the characteristic and pattern of trickle source infiltration, ( 2 ) study mulched crop evapotraspiration for cotton and corn in a arid climate sandy loam soils. according to the researches of the dissertation, the main results are as follows : ( 1 ) the shape of wetted soil volume is influenced by soil texture, discharge rate and the total volume of applied water in case of trickle source infiltration
本文以粘壤土為研究對象，對微源入滲特性規律進行了系統的室內試驗研究，並且對膜下滴灌大田作物棉花和玉米的需水規律進行了野外試驗，得到了以下幾點結論： （ 1 ）地表微源入滲土壤濕潤體的形狀受到土壤質地、供水強度和灌水時間的影響，一般為半個橢球體。 -
Sandy desert soils
砂質漠境土 -
Moreover, the effect of heavy metal pollution on soil microbial indexes was significant in red sandy soils
兩種土壤比較，以上微生物活性指標對重金屬脅迫的響應程度在紅砂泥上表現更為明顯。 -
The survey of endophytic bacteria in different soil textures : the population was greater in sandy soils than in soils with low sand components, but the flora was more abundant in soils with low sand components
不同土質田間煙草內生細菌種群差異：對rg和k326兩個品種在兩種土質中的內生細菌調查表明，同種煙草內生細菌帶菌量偏砂土中高於偏粘土，菌群則是偏粘土多於偏砂土。 -
Under the same soil moisture suction, water holding quantity in soils from high to low in turn was lou soil, hei - lu soil, loessial soil and aeolian - sandy soil
土壤水分動態變化過程（干濕交替次數）和變化強度（溫度變化）對黃土高原地區四種土壤鉀的有效性有較大影響。 -
Since casagrande ' s works, significant progress has occurred. but, most of these are applicable for sandy soils
然而，這些研究大多是針對于砂土而進行的，對于粉土液化問題的研究相對較少。 -
Loam a medium - textured soil containing a mixture of large and small mineral particles. loams are easy soils to work and combine the good properties of sandy and clay soils
壤土：一種中等密度的土壤，其中包含大小不同的礦物質顆粒。這種土壤利於種植，並具有沙土和黏土的優點。
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