论地役权对物权法定原则漏洞的补充

物权法定主义是物权法制度中的一项重要原则，主要是指物权的种类及其内容必须依法律制度，当事人不能创设，也不能变更。这一原则使当事人在土地利用中协议自由受到很大限制，地役权具有权利内容不确定的特点，为当事人协议利用土地提供了空间，对物权法原则起很大的补充作用。

Easement: Supplement to Legalization of Real Right

It's an important principle in real law that real right should be legalized. Depriving the parties of freedom to creat and alter it. the principle mainly points out that classification and content of real right should be stipulated by legal system, which sets limit to the parties' freedom of negotiation in land esploitation. As a supplement to real right, easement is characteristic of its uncertain content, which provides parties with an opportunity to esploit land by negotiation.