科学与环境
NASA satellite can monitor most of world's irrigation canals, study finds
来源: Phys.org - latest science and technology news stories · 发布于
Irrigation canals form a sort of circulatory system for global agriculture. Across the world, millions of kilometers of human-made canals carry water from lakes, rivers and reservoirs downhill to farmland. Canals are vitally important to human food production, yet many agricultur
Irrigation canals form a sort of circulatory system for global agriculture. Across the world, millions of kilometers of human-made canals carry water from lakes, rivers and reservoirs downhill to farmland. Canals are vitally important to human food production, yet many agricultural areas lack the means to monitor the ebb and flow of water through these waterways.
This forces farmers and water managers to rely on scattered gauges, inspections and local reports to make decisions about water use.
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