linear valley 中文意思是什麼
linear valley
解釋
線狀谷-
According to the theory of hydrology, hydro - chemical and hydrology, geology and isotopic geo - chemical, and the method of non - linear regression mathematics, the author researched and analyzed the cause of formation and variable features of lakes in jiuzhai valley, then draw the conclusions as follow 1
以水文地質學、水文地球化學、地質學、同位素地球化學的理論為依據，並結合非線性回歸數學方法，對九寨溝湖泊成因和動態進行分析研究，得出如下結論： 1 -
Based on the natural conditions, land use and production situation and implementation of the valley harnessing measures in the anjiagou river basin, dingxi county, gansu province, in this study the land use types, spatial distribution mode of land use structure, costs of farming, forestry and animal husbandry and their economic returns are analyzed, the qualitative and quantitative maximum economic returns of agriculture and animal husbandry are lucubrated, and an optimized design of land use structure is carried out by using the linear programming method and developing a mathematic model under the restriction of land area, labor forces, livestock forces, social requirements and forage supply
摘要根據甘肅定西安家溝流域自然條件、土地利用狀況、治理措施和生產狀況，通過對土地利用的類型、結構空間分佈模式以及人財物資源的輸入和輸出分析，以種植業和畜牧業總體最大純經濟效益最高為目標，從定性到定量，通過建立數學模型，在土地面積、勞動力、畜力、社會需求和飼料需求的約束之下，應用線性規劃方法進行土地利用結構優化設計，求解最優目標解，得出優化方案。
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