You can describe the action or process of encroaching on something as encroachment .
例句
It's a sign of the encroachment of commercialism in medicine...這是醫藥界被逐漸商業化的一個的征兆。The problem was to safeguard sites from encroachment by property development.問題是要保護遺址免受房地產開發商的侵占。
英漢詞典釋義
n.
侵入,侵占;侵蝕
I resent all these encroachments on my valuable time.我不滿所有這些占用了我的寶貴時間的行為。
英英詞典釋義
Noun
1. any entry into an area not previously occupied;
"an invasion of tourists""an invasion of locusts"
2. entry to another's property without right or permission
3. influencing strongly;
"they resented the impingement of American values on European culture"