干旱区生态环境知识资源中心(Arid): 梭梭(Haloxylon ammodendron)主根周围土壤特征

Arid

	梭梭(Haloxylon ammodendron)主根周围土壤特征
其他题名	Characteristics of the Soil around the Main Root of Haloxylon Ammodendron
	楚新正 1; 马倩 1; 马晓飞 1; 徐莉 2; 马婕 2
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2014
卷号	34 期号:1 页码:170-175
中文摘要	通过建立米级的空间尺度进行分层取样,研究了准噶尔盆地南缘建群种梭梭(Haloxylon ammodendron)主根周围土壤的含水率、容重、pH值、电导率和养分含量的变化状况。结果表明:(1)土壤含水量在表层5 cm处最小,土壤容重在0~40 cm土层变动幅度不大,但随着与茎基垂线距离的增加,二者出现显著变化(P< 0.05).(2)土壤pH值和电导率在主根区周围呈现聚集现象,最大聚集率均在0~1 m圈层,但随着距离的增加,土层深度逐渐成为主导因素。(3)土壤养分在表层5 cm处聚集,但水平聚集范围中除有机质和全氮可扩增到3~ 4 m外,全磷和速效养分均在0~2 m。本研究结论对于荒漠区耐盐性植被的合理密植有-定的理论意义。
英文摘要	Based on establishing meter-level spatial scale to conduct stratified sampling, the changes of moisture content, bulk density, pH, electrical conductivity and nutrient in the soil around the main roots of Haloxylon ammodendron which is the constructive species at the south edge of Junggar Basin have been studied. The results showed that: (1) The soil moisture content reached the lowest value at depth of 5 cm. The soil bulk density did not change remarkably in the 0-40 cm soil layer. However, with the increase of distance to the main root, the above two factors significantly changed (p<0.05). (2) The soil pH and electrical conductivity respectively presented around the aggregation phenomenon in the taproot zone, the maximum aggregation rate was in 0-1 m layer. However, with the increase of distance, the soil depth gradually became the dominant factor. (3) The soil nutrients aggregated at the 5 cm layer, while in the range of horizontal aggregation, except that the organic matter and total nitrogen extended to 3-4 m, both the total P and available nutrients were located in the range of 0-2 m. These may have a theoretical significance on the rational close planting of salt tolerant vegetation in the desert area.
中文关键词	梭梭(Haloxylon ammodendron) ; 土壤养分 ; 肥岛 ; 准噶尔 ; 空间分异
英文关键词	Haloxylon ammodendron soil nutrients fertile island Junggar Basin spatial differentiation
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:5049248
来源机构	新疆师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232145
作者单位	1.新疆师范大学地理科学与旅游学院, 新疆干旱区湖泊环境与资源实验室, 乌鲁木齐, 新疆 830054, 中国; 2.新疆师范大学地理科学与旅游学院, 乌鲁木齐, 新疆 830054, 中国
推荐引用方式 GB/T 7714	楚新正,马倩,马晓飞,等. 梭梭(Haloxylon ammodendron)主根周围土壤特征[J]. 新疆师范大学,2014,34(1):170-175.
APA	楚新正,马倩,马晓飞,徐莉,&马婕.(2014).梭梭(Haloxylon ammodendron)主根周围土壤特征.中国沙漠,34(1),170-175.
MLA	楚新正,et al."梭梭(Haloxylon ammodendron)主根周围土壤特征".中国沙漠 34.1(2014):170-175.