blown sands 中文意思是什麼

blown sands 解釋
飛砂
  • blown : adj. 1. 吹脹了的；脹起的；鼓起的。2. （馬等）累得喘氣的；疲勞極了的。3. 滿是蠅卵的。4. 吹制的。5. 被炸毀的；壞了的；（食物等）走味的。adj. 開了花的；（花）盛開的。
  1. Therdly because of the influence of terrain and geological structure, arenaceous resources of different regions are different in mu us. sands are mainly from riverway in northwest ; from efflorescent cretaceous sandstone on account of higher topography in the middle part of mu us ; and sands resources are intricated in southeast, mainly including riverway sands, sands blown by the wind and embedded sands under so

    3 、毛烏素沙地因受地形和地質構造影響，不同區域的砂質來源情況不盡相同，西北部地區主要為河道沙；中部地區地勢較高，為白堊系基巖裸露而風化成沙；東南部地區沙質來源情況復雜，主要有：現代河道砂、風積沙、也有埋藏在現代壤土之下的出露古沙。
  2. 4. in the process of spontaneous vegetation recovery of blown sand soil, coarse sands ( l - 0. 25mm ) content gradually lower, middle sands ( 0. 25 - 0. 05mm ) and fine sands ( 0. 05 - 0. 02mm ), silt, clay content gradually higher in mechanical composition

    4 、在自然植被恢復過程中，風沙土機械組成中砂粒含量變化表現為粗砂含量的降低，中砂和細砂含量的升高，砂粒整體含量降低。
  3. Compared manual with spontaneous vegetation recovery process of blown sands, the pace is quicker, the degree is higher, the transformation range is larger of every physical and chemical characters

    與風沙土人工植被恢復相比較自然植被恢復，土壤發育速度慢、強度低、程度弱，土壤質量較差，肥力水平很低。
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