干旱区生态环境知识资源中心(Arid): 秸秆还田对西藏中部退化土壤环境的影响

Arid

	秸秆还田对西藏中部退化土壤环境的影响
其他题名	Effect of straw returning on the environment of degenerated soil in central Tibet
	蔡晓布 1; 钱成 2; 张永青 1; 薛会英 1; 陈芝兰 3; 普琼 1
来源期刊	植物营养与肥料学报
ISSN	1008-505X
出版年	2003
卷号	9 期号:4 页码:411-415
中文摘要	在西藏中部风蚀严重地区研究了旱季不同秸秆还田方式对退化土壤环境的影响以及土壤物理、化学(养分)和生物因于间的相互关系。初步结果表明，留高茬和秸秆覆盖方式对保护耕层土壤环境、降低土壤容重、提高土壤孔隙度、促进土壤团粒结构形成具有较大作用；对土壤水分、土壤温度、土壤有机质及土壤养分以及土壤微生物类群及其数量构成具有重要影响。还田期内，土壤物理、化学(养分)和生物因子间的相互影响和共同作用使退化土壤呈现出较为明显的恢复态势。秸秆翻埋的土壤含水量及环境综合效应则相对较低，充分反映了西藏中部秸秆翻埋的水分限制作用。土壤细菌在土壤微生物数量构成中占绝对优势。石灰性土壤条件下，土壤速效磷含量处于较高水平并与土壤pH呈正相关。
英文摘要	Effect of different methods of spring barley straw returning in dry season on soil environments and relation to soil physico-chemical properties and biological factor of degenerated soil were studied in wind erosion district of central Tibet. Preliminary results showed that there was marked effect of higher stubble and soil covered with straw could protect the soil environment of arable layer, reduce the bulk density, and improve the porosity, water-stable aggregate, increase organic matter and soil nutrient contents, amount of soil microbes under the ecological conditions of the central Tibet, and regenerated soil presented a distinct improvement under the affected of physico-chemical properties and biological factor during the straw returning period. However, the comprehensive effect and soil water content was relative lower under incorporation of straw indicated that soil moisture was a key factor that impair the effectiveness of straw returning under the arid region and semiarid region in Tibet. The amount of bacterium account for overwhelming majority of the soil microbes under the different methods of straw returning and it made a greater contribution to soil nutrition. In calcareous soil the content of the rapidly available phosphorus had higher level and it increased significantly by the increase of the pH.
中文关键词	退化土壤 ; 秸秆还田 ; 土壤环境 ; 西藏
英文关键词	degenerated soil straw returning soil environments Tibet
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:1315775
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204587
作者单位	1.西藏农牧学院农学系, 林芝, 西藏 860000, 中国; 2.西藏农牧学院水电系, 林芝, 西藏 860000, 中国; 3.西藏农牧学院微生物试验室, 林芝, 西藏 860000, 中国
推荐引用方式 GB/T 7714	蔡晓布,钱成,张永青,等. 秸秆还田对西藏中部退化土壤环境的影响[J],2003,9(4):411-415.
APA	蔡晓布,钱成,张永青,薛会英,陈芝兰,&普琼.(2003).秸秆还田对西藏中部退化土壤环境的影响.植物营养与肥料学报,9(4),411-415.
MLA	蔡晓布,et al."秸秆还田对西藏中部退化土壤环境的影响".植物营养与肥料学报 9.4(2003):411-415.