soil aeration造句
例句與造句
- Poor drainage causes deficient soil aeration and death of the roots .
排水不良能減低土壤的透氣性，使根死亡。 - Eng . ) we teach soil definition , soil classification , soil architecture and physical properties , soil aeration and temperature , soil colloids , soil acid , alkalinity and salinity , soil organisms , soil organic matter , nitrogen and sulfur economy of soils , soil phosphorus , potassium and micronutrients , practical nutrient management
中)主要講述土壤的基本定義，土壤的化育、生成與分類，土壤的物理、化學(xué)與生物特性，土壤的通氣與溫度，土壤膠體特性，土壤的酸性、堿性和鹽性，土壤中的元素，土壤管理等。 - The results indicated that as the intensity of sward cleavage increased , elymus nutans and other plants that had high requirements in soil aeration and resource space presented an increased competitive edge and the species that had low requirements in soil aeration and resource space presented an opposite picture ; low - intensity sward cleavage could help increase species diversity to a certain extent , but the diversity index appeared to decline as a whole as the cleavage intensity increased ; the effects of sward cleavage on functional groups of the vegetations showed in such manner as e . nutans - represented grasses increased in their composition with the intensity of sward cleavage raised , and sedges and forbs decreased in their compositions with the intensity of sward cleavage raised ; sward cleavage showed a significant improving effect on primary productivity of the meadows and was capable of increasing the proportion of quality - grass biomass to the total plant biomass ; sward cleavage could be independently employed as an effective measure to rehabilitate and improve alpine - meadow grasslands and thus played a basic and key role in the technical combination aiming at establishing hay fields characterized by e . nutans
結(jié)果表明：垂穗披堿草等對土壤通透性和資源空間要求較高的物種，競爭力隨劃破強(qiáng)度的增加而上升，而對土壤通透性和資源空間要求相對較低的物種則相反；輕度劃破干擾對提高物種豐富度具有一定的促進(jìn)作用，但多樣性指數(shù)則總體上表現(xiàn)為隨劃破強(qiáng)度的增加而呈下降的趨勢；劃破干擾對植被功能群的影響表現(xiàn)為以垂穗披堿草為代表的禾草類組分隨干擾強(qiáng)度的增加而顯著上升，莎草類和雜類草組分隨干擾強(qiáng)度的增加而顯著下降；劃破干擾對草地初級生產(chǎn)力的提升具有顯著的促進(jìn)作用，且可顯著增加植物總量中優(yōu)質(zhì)牧草的比重；劃破干擾可獨(dú)立作為高寒草甸類草地恢復(fù)與改良的有效措施，在定向培育垂穗披堿草型割草場的技術(shù)組合中具有核心和基礎(chǔ)性的地位。 - It's difficult to find soil aeration in a sentence. 用soil aeration造句挺難的