霍伊尔(Sir Fred Hoyle),英国当代著名天体物理学家,不仅在天文学方面有许多建树,而且在哲学思想方面有许多独到的见解。他创立的稳恒态宇宙学说长期以来是自然哲学中争论的焦点,批评者多,研究者少。最近,霍伊尔等人又向当前流行的大爆...霍伊尔(Sir Fred Hoyle),英国当代著名天体物理学家,不仅在天文学方面有许多建树,而且在哲学思想方面有许多独到的见解。他创立的稳恒态宇宙学说长期以来是自然哲学中争论的焦点,批评者多,研究者少。最近,霍伊尔等人又向当前流行的大爆炸宇宙论提出挑战,并重申稳恒态宇宙模型成立的可能性。那么,稳恒态学说是怎样创立的呢?它的基本内容是什么?它和大爆炸宇宙论有哪些争论呢?展开更多
This paper reviewed a large scale conservation work of rare and endangered plants currently conducted in main botanical gardens in China, and the existed, predictable and neglected problems on plant growth and reprodu...This paper reviewed a large scale conservation work of rare and endangered plants currently conducted in main botanical gardens in China, and the existed, predictable and neglected problems on plant growth and reproduction in ex-situ conservation process. Considered the status quo in plant ex conservation, a nutritional strategy on the plant conservation was proposed based on ＇Ecological Similarity＇. Its main idea was that the ex-situ conservation plants coming from natural ecosystem were compulsively allocated in the agro-ecosystems and would return to natural ecosystem ultimately. Therefore, research on plant nutrition of the ex-situ conservation plants should neither just pursue yield and quality as that in agro-ecosystems nor merely stay on intrinsic natures without human intervening. We should give attentions to both of their attributes as in natural ecosystems and in agro-ecosystems, i.e., taking full advantage of plant nutritional measures as in agro-ecosystems to solve actual survival problems of the ex-conservation plants, and ensuring the final goal of returning to nature and playing its ecological role.展开更多
文摘霍伊尔(Sir Fred Hoyle),英国当代著名天体物理学家,不仅在天文学方面有许多建树,而且在哲学思想方面有许多独到的见解。他创立的稳恒态宇宙学说长期以来是自然哲学中争论的焦点,批评者多,研究者少。最近,霍伊尔等人又向当前流行的大爆炸宇宙论提出挑战,并重申稳恒态宇宙模型成立的可能性。那么,稳恒态学说是怎样创立的呢?它的基本内容是什么?它和大爆炸宇宙论有哪些争论呢?
基金supported by National Key Technology R & D Program,China (2008BADA4B08,2007BAD87B09)the International Plant Nutrition Institute (IPNI-Hubei 200501).
文摘This paper reviewed a large scale conservation work of rare and endangered plants currently conducted in main botanical gardens in China, and the existed, predictable and neglected problems on plant growth and reproduction in ex-situ conservation process. Considered the status quo in plant ex conservation, a nutritional strategy on the plant conservation was proposed based on ＇Ecological Similarity＇. Its main idea was that the ex-situ conservation plants coming from natural ecosystem were compulsively allocated in the agro-ecosystems and would return to natural ecosystem ultimately. Therefore, research on plant nutrition of the ex-situ conservation plants should neither just pursue yield and quality as that in agro-ecosystems nor merely stay on intrinsic natures without human intervening. We should give attentions to both of their attributes as in natural ecosystems and in agro-ecosystems, i.e., taking full advantage of plant nutritional measures as in agro-ecosystems to solve actual survival problems of the ex-conservation plants, and ensuring the final goal of returning to nature and playing its ecological role.
