长江上游典型区的耕地地力与农业结构调整——以川江流域及其周边地区为例

Climate-Soil Productivity and Agricultural Structure Adjusting in Several Typical Areas in Upper Reaches of Yangtze River——A Case of Sichuan and Fringe Areas of Yangtze River

耕地地力的调查研究是对长江上游地区的生态环境整治建设、农业结构调整等有重要意义的工作。以川江流域及其周边的几个典型农业生态区的耕地为例进行研究,结果表明:采用土壤质量系数、土地生产潜力等对该区域耕地地力进行评价是适宜的。评价结果对该区生态环境建设、农业结构调整等有指导意义。同时,根据该区耕地地力特点和分布状况,提出了保护利用和农业结构调整的对策。

It is important to estimate climatesoil productivity for renovating and constructing the ecoenvironment, and adjusting the agricultural structure. Several typical ecoagriculture areas of Sichuan province in upper reaches of the Yangtze River were studied, and the result showed that: it is feasible to estimate the climatesoil productivity by using the soil quality index and potential productivity as the criterion. Estimation result is of good direction meaning to renovate and construct the ecoenvironment and adjust the agricultural structure. According to the climatesoil productivitys characteristic and its distribution, the countermeasures of renovating and constructing the ecoenvironment and adjusting the agricultural structure were given. 