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濕地多美 (24 Apr 2004)

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濕地陰濕。溪流湖泊顯然而見,但由農田或魚塘荒廢而成的淡水沼澤,眼看只是野草叢生的爛地,其實禾稈?珍珠。為了適應濕地的多水環境,很多淡水濕地植物形態奇特,布袋蓮的長根浮曳,田字草的葉片隨光線開合。濕地也居住了大量不同種類的生物,小如蜻蜓大如水牛,都依賴淡水濕地而生。除了內陸的淡水濕地,沿岸的潮間帶也可孕育出鹹淡水濕地。潮間帶環境惡劣,但紅樹林硬淨,合力展開豐富而複雜的食物網,從泥灘的蠕蟲、藤壺、蜆、螺、蝦、蟹、魚到鳥,大動物吃小動物,層級而上。水陸交接而生濕地,比地之中海之深,生態更豐富。獨自美麗,不如互吹熱鬧。

Program: 
山水傳奇
Publish Date: 
Saturday, April 24, 2004
Station: 
RTHK
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