lean soil 中文意思是什麼
lean soil
解釋
貧瘠的土壤-
Soil is the base of agriculture production, the key measure to prevent water and soil loss is to conserve soil, but most soil nutrient is lost with the sediment loss, and serious water and soil loss make the soil thickness degrease, the soil nutrient be deficient and lean, the land quality degrade and the yield of plant decrease, all this results is going to threaten the people ' s transplanting and the agriculture sustainable development, and restrict the economy development of three gorges regions
同時，土壤是農業生產的根本，治理水土流失的關鍵是要保住土壤，而土壤養分絕大部分是隨著泥沙流失的，嚴重的水土流失造成土層淺簿、養分貧瘠，土地質量退化，產量下降，對三峽庫區移民工作和農業可持續發展造成嚴重威脅，制約三峽庫區經濟發展。因此進行三峽庫區坡耕地土壤侵蝕機理研究，探索減輕坡耕地土壤流失的方法措施，具有全局性的重大意義。 -
By looking back the virescence potential, the methods of land use, the choice of compatible plant on municipal refuse landfills in china and other nations, and studying on the harm in municipal refuse landfills, the limits to virescence that are lfg, the leakage the faultiness maintainability, the lean soil and so on, at last, the focus is put forward in the series technology, the programming ways, the feasible plants for the future
通過回顧國內外城市垃圾填埋場土地利用方式、綠化潛力、樹種選擇研究進展，對垃圾填埋場存在的諸如填埋氣體、滲漏問題、植物的養護、土壤貧瘠等對垃圾填埋場綠化產生限制的因子進行探討，提出找到垃圾填埋場綠化的綜合配套技術如綠化美化規劃方法、適宜的草種和樹種、配套的綠化方法等將成為今後研究的重點與熱點。
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