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dryland agriculture
释义
dryland agriculture
Encyclopedia
农学
旱地农业
释
dryland agriculture
旱地农业
在降水稀少又无灌溉条件的干旱、半干旱和半湿润易旱地区,主要依靠天然降水和采取一系列旱作农业技术措施,以发展旱生或抗旱、耐旱的作物和牧草为主的农业。又称旱作农业或雨养农业。
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sediment disaster
sediment discharge
sediment discharge ratio
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sediment dynamics
sediment flush by density flow
sediment forecasting
sediment gravity flow
sediment incipient motion
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sediment microbe
sediment monitoring
sedimentology
sedimento-metamorphic iron deposit
sediment pollution
sediment property
sediment quality criteria
sediment regulation of reservoir
sediment resources
sediment sampling
sediment sampling technique
sediment settling
sediment settling velocity
sediment storage dam of soil and water conservation
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