Protective functions of forest resources also contribute to ecosystem conservation efforts.
森林资源的保护功能亦有利于生态系统保护努力。
According to the features of water cycle in protective forest ecosystem in loess area, the equation of water balance for the protective forestry ecosystem was put forward.
根据黄土地区防护林生态系统水分循环的特征，提出了防护林生态系统水量平衡方程。
Plant trees and grasses, and protective froest, form new agr-ecosystem.
④种树种草，营造农田防护林，建立新的农业生态系统。
Plant trees and grasses, and protective froest, form new agr-ecosystem.
④种树种草，营造农田防护林，建立新的农业生态系统。
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