【摘要】 黑龙江省黑土流失 ,松花江水位低枯、沙漠化扩大和湿地资源萎缩等现象 ,导致其土地资源面临风险 ,人们必须提高资源环境忧患意识 ,采取有效措施 ,保证地表覆盖的逐步优化和资源环境安全。更多还原

【Abstract】 In Heilongjiang, soil erosion, persistent decline of water level of the Songhua River basin, expanding desertification, and further shrinkage in the size of wet land-all these serious statuses of land resource are looming up. So we must take efficient measures to gradually optimize the surface vegetative cover and ensure the security of environment and resources, enhancing the apprehensive awareness of environmental protection.更多还原