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伊犁河流域林业生态建设基地淡灰钙土土壤特征研究
Authors
张占江
徐海量
李吉玫
艾合买提.那由甫
Publication date
1 January 2006
Publisher
Abstract
在伊犁河流域林业生态建设基地,随机挖土壤剖面11个,依照土壤发生层分层取样,同时观察其颜色、结构、干湿度、松紧度、孔隙大小及植物根系的分布等生态特征,以此来鉴别土壤质地、土壤发育状况,并测定土壤中的盐分和养分。分0~10 cm、10~20 cm、20~30 cm、30~40 cm共4层取样,测定土壤容重,并分别在灌水前及灌水后不同日期测定了土壤含水量。实验结果表明:在伊犁河流域林业生态建设基地淡灰钙土土壤剖面发育微弱;含盐量低;有机质含量平均只有0.80%,全N、全P含量较少,全K含量较高,速效N、速效P含量较低,速效K含量较高;0~10 cm和10~20 cm的土壤容重分别为1.35~1.62 g/cm3和1.36~1.50 g/cm3之间。灌水后土壤含水量普遍都有所提高,其中0~10 cm土层土壤含水量比灌水前增加了59.31%,10~20 cm、20~30cm和30~40 cm土层的土壤含水量分别比灌水前增加了37.74%、27.29%和6.36%
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Institutional Repository of Xinjiang Institute of Ecology and Geography, CAS
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Last time updated on 29/11/2016