土地利用／覆被变化对土壤质量影响研究进展

土地利用／覆被变化作为人类利用土地各种活动的综合反映，是影响土壤质量变化最普遍、最直接、最深刻的因素。利用与覆被变化体现为：林草地与耕地间的转变、湿地开垦为农田及耕作经营措施、作物轮作制度、施肥等变化，不仅对土壤质量造成了不同程度的影响，而且通过影响气候、土壤、水文以及地貌而对自然环境产生了深刻的影响。文章从土地覆被类型变化、农作物种类变化、土地利用集约度变化等方面，综述了近期取得的研究成果，指出研究中存在的难点及今后研究的重点。

Review on the Influence of Land Use/Cover Changes on Soil Quality

Land use/cover changes, as the integrated reflect of the variety of human land-use activities, are the most common, direct and pro- found factor of impacting the soil quality. Land use change and cover change reflected as follows ： transformation between woodland - grassland and arable land, wetland reclamation for agricultural land and farm management practices, crop rotation system, fertilization and other changes. Changes not noly impact the soil quality,but also affects the natural environment deeply by affecting the climate,soil,hydrology and landform. This paper reviewed the research results of land use changes on soil quality following the changes of land cover changes, crop type changes, land use intensity and so on. Pointed out the difficulties that exist in the research and the key of future research.