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我国的平原只佔全国总面积的13.5％,其餘都是丘陵和山地。在丘陵和山地上有关土地利用的一个基本问题是水土保持。水土保持工作不仅与提高耕地单位面积的产量密切有关,而且也是根治各河流中、下游水患的根本办法。同时水力资源的充分利用亦须有水土保持工作的密切配合。但是,目前各农业科学研究机关如华北、西北、华东以及各省的农业科学研究所内都没有水土保持的单位,同时部分领导干部在主观上对此问题亦不甚重视。我曾和华北农业科学研究所陈凤桐所长交换过意见,他说:“目前农业科学研究
The plain of our country only accounts for 13.5% of the total area of the country, and the rest are hills and mountains. One of the basic issues concerning land use in hills and mountains is soil and water conservation. Soil and water conservation work is not only closely related to the improvement of output per unit area of cultivated land, but also the fundamental solution to the floods in the middle and lower reaches of various rivers. At the same time, full utilization of water resources must also work closely with soil and water conservation. However, at present, agricultural scientific research institutes such as North China, Northwest China, East China and other provinces have no units for soil and water conservation. At the same time, some leading cadres do not pay much attention to this issue subjectively. I had an exchange of views with director Chen Fengtong of North China Institute of Agricultural Sciences. He said: "At present, agricultural science research