ground water stage 中文意思是什麼
ground water stage
解釋
地下水位-
4 in order to make. the decision adjust to the practice, and use the limited water resources more rationally. a multi - objective fuzzy decision method for irrigation district is presented considering fuzzy connection, then a method is given to get the changeable objective weight of each stage. this model can solve the decision in conjunctive use of ground and surface water
4 、為合理利用水資源，使渠井結合灌區的地表、地下水聯合調度決策與實際結合更緊密，本文在陳守煜建立的多指標模糊關系優選決策理論基礎上，提出了考慮時段指標變權重的多指標模糊關系優選決策方法，模型中各指標的權重隨作物所處生長階段的不同發生變化，並將模型與演算法應用於實際例子中，取得了較為滿意的結果。 -
Gully erosion, which is universal on original lands, but also the special forms, for example, hole erosion gravel erosion debris slide and debris flow, which is unusual in loess area, ( 2 ) based on a long - term fixed point experiments in proving ground of the south stackpile, the soil erosion factors have been researched quantitatively, the runoff and erosion affected factors have been made sure and the experiential models of producing water and soil have been taken in newly - constructed stage, early stage and later stage of reclamation
確定南排土場原地貌的水蝕模數為3700 4400t km ~ 2 ? a ；在排土場新造地貌上，擊濺、面蝕、細溝侵蝕、淺溝侵蝕、沉陷侵蝕、砂礫化面蝕、土砂瀉溜和坡面泥石流等水土流失形式出現頻率和發生程度都明顯強于原地貌。 （ 2 ）以南排土場徑流試驗場長期的定位觀測為基礎，對排土場未復墾時期、復墾初期、復墾後期的土壤水蝕影響因子進行定量研究，確定了徑流和土壤水蝕的主要影響因子及其臨界值，建立了產流產沙的經驗模型。 -
The above - ground biomass amount is between 11. 81 - 109. 15t / hm2. s. viciifolia hance has good funcjtion for soil and water conservation. at present, it is on the frontal stage of natural vegetation succession, the ground - diameter is keeping linear growth
狼牙刺個體地徑隨年齡增長保持直線生長，立地條件的優劣對生長速度有重要影響，生長速度順序為： 14齡狼牙刺6齡狼牙刺17齡狼牙刺。
分享友人