干旱区生态环境知识资源中心(Arid): 中国西部冬油菜种植的生态效应评价

Arid

	中国西部冬油菜种植的生态效应评价
其他题名	Ecological benefits of planting winter rapeseed in western China
	王学芳 1; 孙万仓 1; 李芳 2; 康艳丽 1; 蒲媛媛 1; 刘红霞 1; 曾潮武 1; 范重秀 3
ISSN	1001-9332
出版年	2009
卷号	20 期号:3 页码:647-652
中文摘要	为探讨在中国西部推广种植冬油菜的生态效益,以河西走廊4月份的冬油菜、冬小麦、麦茬和春播4种农田地表进行风洞模拟研究.结果表明:冬油菜具有显著的抗风蚀效果,其地表粗糙度可达4.08 cm,起动风速高达14 m·s~(-1),而且在相同试验条件下,其风蚀模数和输沙率分别是春播农田的4.1%和485%,其土壤有机质、碱解氮、速效磷、速效钾及土壤过氧化氢酶、脲酶、碱性磷酸酶、转化酶活性和微生物数量等的流失量也仅分别是春播农田的1.4%、5.1%、1.6%、2.7%、9.7%、3.6%、6.3%、6.7%和1.5%.因此,在地表风蚀的我国西部地区研发、推广种植冬油菜,可有效防治农田土壤风蚀,蓄水保肥,并可增加复种指数和经济效益,具有防治土地沙漠化、改善区域生态环境的作用.
英文摘要	To evaluate the ecological benefits of popularizing winter rapeseed planting in western China,a wind tunnel simulation test was conducted with four kinds of farmland surface,i.e.,win-ter rapeseed,winter wheat,wheat stubble,and bare field just after spring sowing,collected from west Gansu in April.The results showed that winter rapeseed surface had a roughness of 4.08 cm and a threshold wind velocity as high as 14 m·s~(-1),being more effective in blown sand control than the other three surfaces.Under the same experimental conditions,the wind erosion modulus and sand transportation rate of winter rapeseed surface were only 4.1% and 485% of those of the bare field just after spring sowing,and the losses of soil organic matter,alkali-hydrolyzed N,available P and K,catalase,urease,alkaline phosphatase,invertase,and microbes of winter rapeseed surface due to wind erosion were only 1.4% ,5.1% ,1.6% ,2.7% ,9.7% ,3.6% ,6.3% ,6.7% and 1.5% of those of the bare field,respectively.It was suggested that popularizing winter rapeseed planting in west China could control wind erosion,retain soil water and nutrients,increase multi-cropping index,and improve economic benefits of farmland.In addition,it could benefit the re-gional desertification control and ecological environment improvement.
中文关键词	中国西部 ; 冬油菜 ; 农田风蚀 ; 生态效益
英文关键词	West China winter rapeseed wind erosion of farmland ecological benefit
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY ; ENVIRONMENTAL SCIENCES
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
CSCD记录号	CSCD:3629739
来源机构	中国科学院西北生态环境资源研究院 ; 甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224413
作者单位	1.甘肃农业大学农学院, 兰州, 甘肃 730070, 中国; 2.中国科学院寒区旱区环境与工程研究所, 中国科学院沙漠与沙漠化重点实验室, 兰州, 甘肃 730000, 中国; 3.甘肃农业职业技术学院, 兰州, 甘肃 730020, 中国
推荐引用方式 GB/T 7714	王学芳,孙万仓,李芳,等. 中国西部冬油菜种植的生态效应评价[J]. 中国科学院西北生态环境资源研究院, 甘肃农业大学,2009,20(3):647-652.
APA	王学芳.,孙万仓.,李芳.,康艳丽.,蒲媛媛.,...&范重秀.(2009).中国西部冬油菜种植的生态效应评价.,20(3),647-652.
MLA	王学芳,et al."中国西部冬油菜种植的生态效应评价".20.3(2009):647-652.