They're good for the environment because they enable no-till farming, which leaves the soil in place, getting healthier from year to year -- slso keeps less carbon dioxide going from the soil into the atmosphere.
他们有利于环境的保护，因为它们免去了翻土的耕作 使得土壤年复一年 变得更加肥沃。 也不断减少二氧化碳从土壤中排放 到大气。