干旱区生态环境知识资源中心(Arid): 民勤绿洲农田荒漠化对土壤性质和作物产量的影响

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	民勤绿洲农田荒漠化对土壤性质和作物产量的影响
其他题名	Effects of Farmland Desertification on Soil Properties and Crop Yields in Minqin Oasis
	魏林源 1; 刘立超 2; 唐卫东 3; 马全林1 ; 高艳红 2; 杨昊天 2
来源期刊	中国农学通报
ISSN	1000-6850
出版年	2013
卷号	29 期号:32 页码:315-320
中文摘要	为了揭示农田荒漠化程度对土壤养分、机械组成、温度、水分以及玉米生物量的影响,在巴丹吉林沙漠东南缘,选择5种不同荒漠化程度的农田为样地,即:正常农田、轻度荒漠化、中度荒漠化、重度荒漠化、极严重荒漠化。对土壤性质进行了测定分析。结果表明,随着农田荒漠化程度的加重,土壤机械组成呈现粗粒化特征,土壤养分、机械组成等均呈现下降趋势,玉米生物量也随着下降。其中极严重荒漠化与正常农田相比,其土壤粘粒、有机质、水分、全养分、速效养分、电导率、水溶液提pH、生物量、粒数分别下降27.3%、29.78%、24%~39%、1.9%~46.8%、63.4%、3.8%、0.98~52.2 g、223粒,土壤表层0 cm处的温度高6℃,0~30 cm处,土壤含水率下降4.81%。严重荒漠化农田土壤性质以及生物量都低于其他荒漠化农田。
英文摘要	According to sand accumulation condition in ridge and furrow and wind erosion in cropland, five plots with different desertification degree (non-desertification, weak desertification, moderate desertification, serious desertification and extremely serious desertification) were carefully selected to study the effects of desertification on the soil properties and crop production in Minqin oasis, southeastern fringe of the Badanjilin desert. The results showed that, the desertification of the farmland lead to the soil coarsening, nutrient loss and hence the decreasing of the crop yields. Comparing with that without desertification, the content of clay, organic matter, soil water contend, total nutrient, rapidly available nutrient, electrical conductivity, pH value and crop yields decreased by 27.3%, 29.78%, 24%-39%, 1.9%-46.8%, 63.4%, 3.8%, 0.98-52.2 g, respectively, in the farmland with extremely serious desertification. And also, the soil surface temperature increased by 6℃. The study suggested that the effective sand control projects, such as the farmland shelter-belt, will benefit the farmland yields in the oasis.
中文关键词	荒漠化 ; 农田 ; 土壤性质 ; 作物产量
英文关键词	desertification farmland soil properties crop yields
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5002508
来源机构	甘肃省治沙研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230526
作者单位	1.甘肃省治沙研究所, 甘肃省荒漠化与风沙灾害防治重点实验室-省部共建国家重点实验室培育基地, 兰州, 甘肃 730000, 中国; 2.中国科学院寒区旱区环境过程研究所, 兰州, 甘肃 730000, 中国; 3.甘肃省治沙研究所, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	魏林源,刘立超,唐卫东,等. 民勤绿洲农田荒漠化对土壤性质和作物产量的影响[J]. 甘肃省治沙研究所,2013,29(32):315-320.
APA	魏林源,刘立超,唐卫东,马全林,高艳红,&杨昊天.(2013).民勤绿洲农田荒漠化对土壤性质和作物产量的影响.中国农学通报,29(32),315-320.
MLA	魏林源,et al."民勤绿洲农田荒漠化对土壤性质和作物产量的影响".中国农学通报 29.32(2013):315-320.