单词	agroecosystem
释义	agroecosystem /ˌaɡrəʊˈiːkəʊsɪstəm / noun An ecosystem on agricultural land.Consequently the science of ecology ought to be the science behind the engineering of ecosystems to become agroecosystems.... The succeeding three chapters deal with the acquisition and metabolism of nitrogen by plants in the context of natural habitats, and of agroecosystems. An intensive week-long experiential travel course for students to learn about agroecosystems through study of alternative farming systems has been conducted for six years in the Midwest.
随便看	prec. precalculable precalculate precalculated precalculation precalculus Precambrian pre-Canaanite precancel precancell precancellation precancelled precancer precancerous precant precantation precapillary pre-carcinogen pre-carcinogenic precardiac precarial precarious precariously precariousness precarium

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