【摘要】 在分析贵州山区旱坡耕地的生态环境条件和旱坡耕地水土流失状况的基础上 ,指出导致贵州山区旱坡耕地水土流失加剧 ,生态环境恶化的主要原因有 5个方面 ,其中人口的增长和人类对土壤的不合理开发利用是最根本的原因。提出了整治旱坡耕地、减少水土流失和改善农业生态环境及保证农业可持续发展的主要对策 ,如 :控制人口数量 ,调整农业结构 ,推广水保耕作技术 ,改造中低产田土 ,退耕还林还草等更多还原

【Abstract】 Based on the analysis to the natural and artificial factors affecting the soil and water loss of slope dry cultivated land and ecological environment deterioration of the mountainous region in Guizhou province,it is thought that the region has been one of the areas with the most serious soil and water loss and the frailest ecological environment of slope dry land as well as the fast growth of population and vile ecotype resulted from long term piratical exploitation of land resource. At last,this article has put forward six countermeasures of controlling soil and water loss of slope dry land, improving ecological environment and constructing ecological agriculture in Guizhou mountainous region.更多还原