研究表明，人类不合理的开发是造成向海湿地沙化的主要原因。
Results indicates that human over utilization and poor management are the key causes of the sedimentation of the wetland.
半湿润地区的水土流失和土地沙化在很大程度上与人类不合理的开发利用有关。
Soil erosion and desertification in the semimoisture zone have a great connection with irrational exploitation.
人类不合理的开发行为给土壤环境带来了沉重的负面影响，主要表现为土壤沙化、土壤侵蚀、土壤盐渍化、土壤污染等。
Human's irrational development activities have brought serious effects to soil environment, such as desertification, soil erosion, salination, and contamination etc.
应用推荐