水资源分为咸水和淡水,我们通常所说的水资源是指可直接利用的淡水资源。地球71%的表面积为水所覆盖,但其中97.47%的水是无法饮用的咸水,再除去冰川、冰盖、深层地下水等以现有技术手段难以利用的淡水外,人类真正能够利用的淡水资源极其有限,仅占地球总水量的0.26%。为此,各国的水资源保护立法也主要是保护这部分淡水资源。我国《水法》第二条第二款明确规 Water resources are divided into salt water and fresh water. What we usually refer to refers to fresh water resources that can be directly used. Seventy-seven percent of the Earth’s surface area is covered by water, but 97.47% of the water is inaccessible salt water, and freshwater that humans can really use, such as glaciers, ice sheets, deep groundwater, and freshwater that are difficult to use by existing technologies Resources are extremely limited, accounting for only 0.26% of the Earth’s total water. To this end, the national legislation on the protection of water resources is mainly to protect this part of freshwater resources. China’s “Water Law,” the second paragraph of Article II clear rules