文献类型：期刊文献

中文题名：乌兰布和沙区人工绿洲土壤养分动态研究

英文题名：Dynamic changes of soil nutrient content of artificial oasis in Ulan Buh Desert

作者：郝玉光[1] 刘芳[1] 张伟华[2] 乌拉[1]

第一作者：郝玉光

机构：[1]中国林科院沙漠林业实验中心,磴口015200;[2]内蒙古农业大学,呼和浩特010019

年份：2009

卷号：23

期号：7

起止页码：176-181

中文期刊名：干旱区资源与环境

外文期刊名：Journal of Arid Land Resources and Environment

收录：北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；CSSCI:【CSSCI_E2008_2009】；

基金：国家“十一五”科技支撑项目(2006BAD26B08010)资助

语种：中文

中文关键词：人工绿洲;绿洲化;土壤养分;动态

外文关键词：artificial oasis ; oasis process ; soil nutrient; dynamic

分类号：S158.3

摘要：利用1980-2004年乌兰布和沙区人工绿洲典型试验区土壤定位观测资料进行土壤养分的动态分析。结果表明：随着人工绿洲建设年代的增加,土壤有机质含量大幅度增加,土壤全氮、全磷、全钾含量总体上都呈增加趋势;土壤速效养分随绿洲化过程的深入总体上也呈明显的增加趋势。给出了耕作层0-30 cm土壤各养分增量变化的函数关系式,其中全磷增量、速效钾增量呈“S”型曲线增长。
The soil nutrient content of artificial oasis in Ulan Buh Desert in 1980 -2004 were analyzed. The resuits indicated ： the soil organic compound content was increased in oasis process, the content of nitrogen and the phosphor and potassijum were all increased, and the effectual N. P. K contents had a obviously increase tendency. We summarized the rules about content increment transformation of soil nutrients in oasis process. The function relationship of soil nutrient content increment variations about 0 - 30cm of soil layer were given, The phosphor and effectual potassium content increment assumed ＂S＂ curve, we examined the relevantion.