Here’s a description suitable for a WordPress post tag titled “水量” (Shuǐliàng – Water Volume) in Traditional Chinese, tailored to be informative and helpful for readers:

**Option 1: Concise & Informative**

**Description:** 涵蓋與水體體積、容量相關的內容，包括河流流量、湖泊水量、水庫蓄水量等。 (Hángài yǔ shuǐtǐ tǐjī, róngliàng xiāngguān de nèiróng, bāokuò héliú liúliàng, húpō shuǐliàng, shuǐkù xùshuǐliàng děng.)

**Translation:** Covers content related to water body volume and capacity, including river flow, lake water volume, and reservoir storage capacity, etc.

**Option 2: More Descriptive**

**Description:** 深入探討水量的各個層面，從自然界的降水量、地下水，到重要的水利設施如水壩、水渠的水量管理。了解如何衡量、監測、預測水資源的供應，以及水量變化對環境及人類生活帶來的影響。 (Shēnrù tàntǎo shuǐliàng de gègè céngmiàn, cóng zìránjiè de jiàngshuǐliàng, dìxiàshuǐ, dào zhòngyào de shuǐlì shèshī rú shuǐbà, shuǐqú de shuǐliàng guǎnlǐ. Liǎojiě rúhé héngliáng, jiāncè, yùcè shuǐzīyuán de gōngyīng, yǐjí shuǐliàng biànhuà duì huánjìng jí rénlèi shēnghuó dài lái de yǐngxiǎng.)

**Translation:** Delves into various aspects of water volume, from natural precipitation and groundwater, to the management of water volume in important water infrastructure such as dams and canals. Learn how to measure, monitor, and predict the supply of water resources, and the impact of changes in water volume on the environment and human life.

**Option 3: Focused on Practical Relevance**

**Description:** 關注與日常生活息息相關的水量知識。包括用水量統計、水費計算、節水措施建議等。 了解如何更有效地使用水資源，為可持續發展盡一份力。 (Guānzhù yǔ rìcháng shēnghuó xīxī xiāngguān de shuǐliàng zhīshi. Bāokuò yòngshuǐliàng tǒngjì, shuǐfèi jìsuàn, jiéshuǐ cuòshī jiànyì děng. Liǎojiě rúhé gèng yǒuxiào de shǐyòng shuǐzīyuán, wèi kěchíxù fāzhǎn jìn yī fèn lì.)

**Translation:** Focuses on water volume knowledge relevant to daily life. This includes water consumption statistics, water bill calculations, suggestions for water-saving measures, etc. Learn how to use water resources more efficiently and contribute to sustainable development.

**Key Considerations when choosing:**

* **Target Audience:** Who are you writing for? Are they experts, or general readers?
* **Content of your Posts:** What kind of content will be tagged with “水 量”? The description should be relevant.
* **SEO:** Include relevant keywords to improve search engine optimization.

Choose the description that best fits your content and target audience! Good luck!