kion ga agaru ni turete, mizuyari ga hueru.

～につれて means as..., in proportion as..., or along with....

It is used when:

• one thing changes gradually, and
• another thing changes along with it.

So in 気温が上がるにつれて、水やりが増える, the idea is:

• as the temperature rises,
• watering increases.

The nuance is a gradual relationship, not a single one-time event. It is closer to the higher the temperature gets, the more watering there is/needed than to because the temperature rose, we watered once.

Also, につれて is best understood as a set grammar pattern here.

That is the normal pattern.

With ～につれて, you usually attach it to:

• a verb in plain form: 上がるにつれて
• or a noun: 気温の上昇につれて

The plain form does not mean simple future here. It often expresses a general tendency or relationship.

So 気温が上がるにつれて means something like:

• as the temperature rises
• as the temperature continues to go up

It is not talking about one completed action, so 上がったにつれて would not fit here.

Because both 気温 and 水やり are the subjects of intransitive verbs.

• 気温が上がる = the temperature rises
• 水やりが増える = watering increases

In both cases, the thing marked by が is the thing that undergoes the change.

A learner might expect は, but が is very natural here because the sentence is simply describing what changes. If you used は, it would sound more topical or contrastive:

• 気温は上がるにつれて、水やりは増える。

That is possible, but it has a slightly different feel.

It is read みずやり.

水やり means watering, especially watering plants.

It does not mean just water by itself. It refers to the act or practice of giving water. In this sentence, it can mean things like:

• the frequency of watering increases
• the amount of watering increases
• the need for watering increases

Which one is intended depends on context, but watering is the core meaning.

Because 増える is intransitive, while 増やす is transitive.

• 増える = to increase
• 増やす = to increase something

Here the sentence focuses on watering itself increasing:

• 水やりが増える = watering increases

If you wanted to focus on a person intentionally increasing it, you could say:

• 水やりを増やす = to increase the watering

So the original sentence sounds more like a general tendency or result, not a statement about someone’s deliberate action.

It most naturally sounds like a general tendency.

In other words, it means something like:

• when temperatures rise, watering tends to increase
• the warmer it gets, the more watering is needed/done

This is because:

• ～につれて often describes an ongoing relationship between two changes
• the plain forms 上がる and 増える also fit a general statement well

If you wanted to talk about one specific situation, you would usually add more context.

Yes, it is omitted.

Japanese often leaves out the person doing an action when it is obvious, unknown, or not important.

So this sentence does not explicitly say who is watering. It could mean:

• the gardener waters more
• people water the plants more
• watering becomes more necessary

The sentence is focused on the relationship between temperature and watering, not on the person responsible.

Yes, it could.

Both are natural:

• 気温が上がる = the temperature rises
• 気温が高くなる = the temperature becomes higher

The difference is small:

• 上がる emphasizes an upward change
• 高くなる emphasizes becoming high

For temperature, 気温が上がる is very common and natural, so the original sentence sounds good.

It is mainly a parallel change pattern, though a cause-like feeling is often present.

That means the sentence is saying:

• when A changes, B changes along with it

Here, it strongly suggests a practical connection:

• as temperatures rise, watering increases

But ～につれて is not exactly the same as saying because. It is less about explaining a direct cause in a logical way, and more about showing that the two changes happen together.

So the nuance is:

• as the temperature rises, watering increases rather than
• because the temperature rose, watering increased

No. In normal Japanese, this would usually be written without spaces:

気温が上がるにつれて、水やりが増える。

The spaces in your version are just for learning purposes, to make the parts easier to see.

Japanese normally does not separate words with spaces the way English does.