摘要
以神东矿区60个土壤样品的实验室分析结果为原始数据,以1996年《第二次全国土壤普查技术规程》中"土壤养分含量分级与丰缺度指标"的标准对土壤肥力状况进行评价。结果表明:研究区土壤速效氮均处于4级水平,即"稍缺";速效磷含量均为4-5级水平,即"稍缺"或"缺";速效钾处于1级水平,即"丰";土壤含盐量均超过0.1%,盐分类型为SO2-4+CL-+HCO-3-Na+型盐化碱土。总体来看,矿区土壤含盐,肥力水平低,加上土层薄,结构差,为满足植物生长的需要,造林种草前应适当施肥和改良土壤。
Soil fertility in Shen - Dong mining area were evaluated according to the standards of ＂The Indexes of Nutrient Content of Soil Classification and Degree of Enrich and Inadequacy＂ based on the data of 60 soil sampies. The results were as follows： available nitrogen is at the fourth level, which is ＂just not available＂ ; Phosphorus contents are at the 4 -5 levels, that is ＂just not available＂ or ＂not available＂; available potassium at first level is ＂enrich＂ ; soil salinity both more than 0.1%. Salt type is the SO4^2- ＋ CL- ＋ HCO3^- -Na ＋ , named saline alkali soil. Soil fertility in the mining area is not available; fertility conditions of almost all samples would not be able to satisfy the normal plant growth. The soil in this area must be improved.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2014年第9期63-68,共6页
Journal of Arid Land Resources and Environment
基金
国家科技支撑计划项目(2012BAC10B03-4)资助
关键词
土壤肥力
有机质
盐分
神东矿区
Shen - Dong mining area
soil fertility
organic matter
salinity
