contrôle de la désertification; lutte contre la désertification

desertification control Remedial and preventive actions adopted against desertification include irrigation, planting of trees and grasses, the erection of fences to secure sand dunes, and a careful management of water resources

环境

lutte contre la désertification

Desertification Control

: 11 短语, 2 学科

环境	4
联合国	7

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