觀蝶賞蜻蜓：鳳園、沙羅洞(鶴藪水塘)

學竇水塘

Learning Dou Water Pond

其實水塘一開始就不好

Actually, the pond was not good from the beginning.

因為水塘之中是人為構造

Because the pond is artificially constructed.

這裡本身可能只不過是

This place itself might just be.

一條河流 單山河的一個河溪位

A river, a river creek in the Dan Mountain River.

我們就在這裡捉了一個堤壩

We just caught a dam here.

令它儲水

Make it store water.

儲水會令到周邊很多的植物

Storing water will cause many plants nearby.

被水浸著而死亡

Drowned to death.

那時候就會令到植物的種類開始變

At that time, it would cause the variety of plants to start changing.

現在我們就來到一個河溪位置

Now we have arrived at a river stream location.

其實水是所有生物必須要有的東西

Actually, water is something that all living beings must have.

所有生物都是依靠水來生存的

All living beings rely on water to survive.

水也提供了給不同的動植物

Water also provides for different plants and animals.

一個好的生存環境

A good living environment.

譬如這裡

For example, here.

這些清澈的河流

These clear rivers

其實香港已經越來越少了

In fact, there are fewer and fewer of them in Hong Kong.

螢火蟲是一個生態指標

Fireflies are an ecological indicator.

我們如果對這個環境造成一定的破壞

If we cause a certain amount of damage to this environment.

它就會開始消失

It will start to disappear.