In China, the traditional early and late season double rice (DR) system is declining accompanied by the fast increase of......

Emergy and economic methods were employed to evaluate and compare 5 cultivation systems for rice(R),bitter gourd (BG),gr......

Firstly,the emergy evaluation indices are put forward that can reflect the complementary dynamic characteristics of the ......

The integrated circular economy model of farming and stock raising (ICEMFSR) has attracted increased attention as an eff......

介绍了美国著名生态学家Ｈ．Ｔ．Ｏｄｕｍ创立的能值理论，通过具体实例来分析环境－ 能值特征，评价环境征税的经济价值，阐明自然环境与人类经济相互协调......