摘要
[目的]分析吉尔吉斯斯坦共和国（以下简称吉国）与中国新疆土壤有机质的变化情况及原因,为该国土壤培肥提供对策,保障其农业可持续发展.[方法]采用实地考察及相关文献资料方法,分析研究吉国7个州22～ 35 a间的耕地土壤有机质变化情况和中国新疆30 a间的耕地土壤有机质变化情况.[结果]吉国耕地土壤有机质含量近30年呈不断下降趋势;新疆耕地土壤有机质近30年来多趋于上升,个别地区有机质呈下降趋势.[结论]新疆氮磷钾长期配合施用并配施有机肥的施肥方式有利于保持并增加土壤有机质;吉国在有限施用有机肥情况下,很少或不施化肥的施肥方式造成长期消耗土壤肥力,有机质呈下降趋势.
[ Objective ] The purpose of this project aims to analyze soil organic matter changes and the causes between the Kyrgyz Republic and Xinjiang of China in hope of providing soil fertility maintaining prac- tice to ensure the sustainable development of agriculture. [ Method ] The cultivated land soil organic matter changes were analyzed in seven states of Kyrgyzstan from 22 years to 35 years and in Xinjiang of China for 30 years. [ Result ] The content of soil organic matter in Kyrgyzstan kept decreasing in recent thirty years, and the content of soil organic matter in Xinjiang of China mostly tended to increase over the past thirty years, but in some areas, it displayed a decreasing trend [ Conclusion] Combined application of NPK and organic materials played a very important role in maintaining and improving soil organic matter status in Xinjiang of China; Ap- plication of little organic materials and little or no fertilizer caused long - term consumption of soil fertility, and the total level of organic matter tended to decline in Kyrgyzstan.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2013年第9期1748-1752,共5页
Xinjiang Agricultural Sciences
基金
国家国际科技合作项目(2010DFA92720-11)
农业部测土配方施肥项目
新疆农业科学院重点实验室建设项目(xjnkkl-2013-001)
关键词
土壤有机质
吉尔吉斯斯坦
新疆
耕地
变化
Soil organic matter
kyrgyzstan
Xinjiang
farmland
variations
