Eco-environmental Demand for Water in Wetlands at Liaohe Estuary
ZHANG Wanshu
ZHOU Linfei
CHENG Qian
Abstract：Determining the optimum and minimum eco-environmental demands for water in the wetland at Liao-he estuary is important to sustain ecosystem health and productivity. This paper established a wetland model by dividing eco-environmental demand for water into consumable and non-consumable water. The data needed in the model was obtained from satellite imagery using the 3S technology. We then applied the model to calculate the eco-environmental water requirement, sustainable eco-environmental water requirement, as well as mini-mum eco-environmental water requirement under different precipitations in 2000, 2005 and 2014 respectively. The results showed that the optimal eco-environment requirement was 99554.92 × 104 m3. For 100%, 75% and 95%of the average annual rainfall, the minimum eco-environmental water requirements were 20220.13×104 m3, 22362.31×104 m3 and 24314.98×104 m3 respectively.
Keywords：Liaohe Estuary wetlandthe optimum water requirement of eco-environmentalthe minimum water requirement of eco-environmental
Publication Date：2017-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 101-106,128 )