东北典型黑土区土壤养分现状  

Current Status of Soil Nutrients in the Typical Black Soil in Northeast China

作　　者：贺旭杨 肖洋[1] HE Xu-yang;XIAO Yang(Heilongjiang University College of Modern Agriculture and Ecological Environment,Harbin 150080,China)

机构地区：[1]黑龙江大学现代农业与生态环境学院,哈尔滨150080

出　　处：《水利科技与经济》2022年第8期90-93,共4页Water Conservancy Science and Technology and Economy

摘　　要：东北典型黑土区是我国重要的黑土聚集区,黑土是世界上重要的土地资源,肥力强,适宜中国主要农作物生长。通过收集第二次全国土壤普查、2007及2017年东北典型黑土区的土壤养分数据,分析东北典型黑土区土壤养分现状。结果表明,虽然现阶段黑土区肥力依旧丰富,但明显相对之前降低很多,土壤pH值下降。建议通过改善不同肥料的施用、优化耕作制度以及对侵蚀沟的治理来减少对土壤养分的流失。The typical black soil area in Northeast China is an important black soil aggregation area in China,and black soil is a world important land resource with high fertility,and is suitable for major crops in China.In this paper,we collected soil nutrient data from the second national soil census,2007,and 2017 for the typical black soil area in Northeast China.The analysis concludes that although the fertility of the black soil area is still rich at this stage,it is obviously much lower relative to the previous one,and soil pH decreases.It is recommended to reduce the loss of soil nutrients by improving the application of different fertilizers,optimizing the tillage system,and the management of erosion ditches.As well as and through the improvement of soil organic matter,soil pH adjustment,and construction of farmland water conservancy facilities.To improve the nutrients in typical black soil areas of Northeast China.

关 键 词：典型黑土区 土壤有机质 全氮 全磷 全钾 pH值 

分 类 号：S151.9[农业科学—土壤学]