全文1.7萬字
摘要：
木荷(Schima superba)為山茶科(Theaceae)的常綠喬木,有一定的耐蔭性,耐脊薄干旱,適應(yīng)性強，是我國中亞熱帶東部常綠闊葉林主要建群種之一。對該樹種的研究目前主要集中在群落特征、遺傳多樣性、育苗及造林等方面，但對于不同生境下木荷的光合生理生態(tài)特性的研究還未見報道。本文在9月上旬的晴天里分別對林窗、林緣和林下3 種生境的木荷光合生理生態(tài)特性進(jìn)行了研究。

關(guān)鍵詞：木荷；不同生境；日變化；光響應(yīng)；CO2響應(yīng)
Abstract:
such as internal CO2 concentration, stomatal resistance and dark respiration rate were differences at different habitats, the understory leaves were far below others, but there was not distinct differences between canopy gap leaves and forest edge leaves; The curves of photoresponse had the same changes among three habitats, they could be better fit for quadratic equation with one unknown. Photosynthetic parameters of Schima superba in different habitats at different time or in the same habitat at different time showed that Schima superba has variation trends to adapt to environment.

Key words: Schima superba; different habitats; diurnal variation; photoresponse; CO2 response

目 錄

1．引言
2．材料與方法
3. 結(jié)果與分析
3.1 環(huán)境因子日變化
3.2 光合特性日變化
3.3 不同生境木荷光合參數(shù)的變化
3.3.1 光響應(yīng)
3.3.2 CO2響應(yīng)
4.討論
5. 參考文獻(xiàn)