For example, the consumptive water use by tamarisk ranges from 22 to 28,000 m3/ha/annum, whereas for willows and poplars it spans 7,700 to 13,500 and _____
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Answer: A. 6,500 to 23,00 m3
Explanation
Consumptive water use by riparian trees varies based on species and climatic conditions. Tamarisk, willows, and poplars consume enormous quantities of water along river corridors. Scientific measurements quantify the annual evapotranspiration rates for these phreatophytes. Riparian vegetation grows along riverbanks, accessing deep groundwater tables directly. Phreatophytes possess high transpiration rates due to continuous water availability in soils. Water resource managers calculate consumptive use to manage arid river basin supplies.
Invasive tamarisk trees deplete scarce water resources in arid river basins significantly. Eradication programs target high-water-use invasive trees to restore natural stream flows. Agricultural planners account for riparian water consumption when allocating irrigation rights. Option A correctly provides the missing volumetric water use range for poplars and willows. Option B incorrectly estimates lower cubic meter ranges for riparian tree water consumption. Option C underestimates the high evapotranspiration rates measured in riparian forest studies.
- Subject
- Agriculture
- Category
- Forestry
- Topic
- —
- Difficulty
- medium
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