德清县土壤资源利用中的若干问题和建议

Some Problems and Suggestions of Soil Resources Utilization in Deqing County.

德清县处在杭嘉湖平原向浙西丘陵过渡地带。为“四山五地一水”的土地结构。东部的水网平原在杭嘉湖中部平原中具有典型性;西部是山区,中部为丘陵地带。全县土壤主要是红壤,水稻土和潮土、岩性土和黄壤,分别占土壤面积的46.9％,35.4％,16.1％,1.25％和0.38％。红壤主要分布在山区和丘陵地带,水稻土和潮土主要分布在东部的水网平原,但在丘陵河谷地带也有相当数量。近十年来,耕地不断被占用而面积日益缩小,但是开发潜力甚大的低丘缓坡和水域尚未充分利用,部分地区的土壤环境生态(土地生态)恶化,是本县土地资源开发利用中的突出问题。

The principal soil types in the Deqing county are red soils, paddy soils and meadow soils, their area is in 46.9, 35.4, and 16.1% of total soil area in county respectively. The main problems in soil utilization that interfere the agricultural production and sciety development are, 1 ) the decrease of cropping area with the population explosion simultaneously; 2 ) the soil and envirovement pollution in eastern plain part and the soilferosion in mountain and hill areas of the western and middle parts of the county; 3 ) the unrational structure of soil utilization and unrational soil manage including fertilization also reduce the soil fertility and limit the land productivity, some Suggestions for reasonable and effective utilization of soil and protect soil resource and ecological envirovement are given. The red soils on hills and lower mountains with little slope are the chief object for agricultural exploit.