杭州市郊旱地土壤有机质现状及改良措施  

Status and Improvement Measures of Soil Organic Matter in Upland of Hangzhou Suburb

作　　者：章林英 许杰 季淑枫[1] 杨文叶[1] 

机构地区：[1]杭州市植保土肥总站,杭州310020 [2]富阳市农技推广中心,浙江富阳311400

出　　处：《中国农学通报》2015年第22期218-222,共5页Chinese Agricultural Science Bulletin

基　　金：农业部项目"2009-2013年农业部测土配方施肥";杭州市重大科技创新专项(20131812A01)"标准农田地力提升关键技术研究与集成应用"

摘　　要：为了解杭州市郊旱地土壤有机质现状,从而提出因地制宜的改良措施,采用野外调查和室内分析的方法,对杭州市郊旱地各土类、各区域土壤有机质含量及分布特征进行了分析。结果表明：杭州市郊旱地土壤有机质在7.59~52.87 g/kg之间,平均为26.61 g/kg,属中等水平（20~30 g/kg）;且处于高量有机质水平所占的比例随地力等级升高而增加;不同土类及区域间的耕层土壤有机质含量存在明显差异,各土类耕层有机质平均含量由高到低分别为粗骨土类〉红壤〉石灰土〉水稻土〉潮土〉滨海盐土,各区域耕层有机质平均含量由高到低分别为水网平原〉低丘〉河谷平原〉滨海平原;43.64%的土壤有机质含量〈20 g/kg的旱地宜采取秸秆还田、增施有机肥、推广测土配方施肥、改善灌排设施等措施进行改良。In order to understand the status of organic matter in upland of Hangzhou suburb, put forward properimprovement measures, the author used field survey methods and laboratory analysis to analyze soil organicmatter. The results showed that： the content of soil organic matter was from 7.59 g/kg to 52.87 g/kg, averagedby 26.61 g/kg which belonged a middle level（20-30 g/kg）; and the proportion of high organic matter levelswere increased by productivity grades. There were significant differences of soil organic matter in different soiltypes and regions. The average content of organic matter in different soil types was as follows： skeleton soil red soil lime soil paddy soil alluvial soil seashore saline soil. The average content of organic matter indifferent regions was as follows： water net plain low hill valley plain coastal plain. The content of organicmatter of 43.64 percent upland was below 20 g/kg. The author suggested that some improvement measures,such as straw returning, adding organic manure, promoting soil testing and formula fertilizing and improvingirrigation and drainage facilities, should be taken.

关 键 词：杭州市郊 旱地 土壤有机质 现状 改良措施 

分 类 号：S158.3[农业科学—土壤学]