The grain region of the Hai River Basin relies on groundwater for 70pc of irrigation.
海河流域的产粮区,地下水占了灌溉用水的70%。
2
An expansive biological pond serves as a basin collecting rainwater and surface water run-off for landscape irrigation.
一个广阔的生物池塘作为收集雨水和地表水径流的景观灌溉流域。
3
Taking Urumqi River Basin as a test region, this paper presents the building principles and approaches of multi-objective grey decision models for land irrigation system in the basin.