干旱区生态环境知识资源中心(Arid): 基于熵权物元模型的土壤养分评价:以新疆干旱区艾比湖流域人工绿洲为例

Arid

	基于熵权物元模型的土壤养分评价:以新疆干旱区艾比湖流域人工绿洲为例
其他题名	Soil Nutrients Evaluation Based on Entropy Weight and Matter Element (EWME)Model: A Case Study on Artificial Oasis in the Ebinur Lake Basin, an Arid Zone of Xinjiang
	蒋烨林 1; 王让会 1; 彭擎 2; 吴晓全 2; 刘燕 2; 李成 2
来源期刊	生态与农村环境学报
ISSN	1673-4831
出版年	2017
卷号	33 期号:9 页码:852-859
中文摘要	调查新疆艾比湖流域人工绿洲并按不同土地利用类型分层采集土样,以土壤有机质(OM)、全氮(TN)、全磷(TP)、全钾(TK)、速效氮(AN)和速效磷(AP)、速效钾(AK)含量这7项土壤肥力因素为土壤养分评价指标,建立熵权物元(EWME)模型评价人工绿洲15个不同样地59个土样的土壤养分等级。结果表明,人工绿洲土壤养分总体处于极贫乏等级,TK和AK为土壤肥力优势因子,OM、TN、TP、AN和AP为限制因子,农业施肥应具有针对性;不同土地利用类型土壤养分状况不同,耕地养分含量最高,林地次之,这与人工干扰程度有较大关联性;整体而言,不同土层的养分水平变化不明显。在自然状况下,深层土养分含量高于表层土。在人为种植利用状况下,表层土养分含量高于深层土。评价结果符合当地的生产实际状况, EWME模型在人工绿洲土壤养分评价中具有较好的适用性。
英文摘要	A soil survey was carried out of the artificial oasis in the Ebinur Lake Basin, an arid zone of Xinjiang, and soil samples were collected by soil layer and by land use for analysis of soil organic matter (SOM), total nitrogen (TN), total phosphorus (TP), total potassium (TK), readily available nitrogen (AN), readily available phosphorus (AP)and readily available potassium (AK), the seven major soil quality evaluation indices. An EWME model (entropy weight and matter element model)was established for grading by soil fertility the 59 soil samples collected from 15 sampling lots in the oasis. Results show that the soils in the oasis on the whole could be sorted into the category of "poverty" in soil fertility. TK and AK are two advantageous factors, while all the others are limiting. Agricultural fertilization should be done case-specifically and vary with type of land use and nutrient status of the soil. Farmland soil is the highest in nutrient content, and followed by forest soil, which is significantly associated with the degree of human disturbance.On the whole, the soil does not vary much in nutrient content from layer to layer. Under natural conditions, soil nutrient content in the deep layers is generally higher than that in the surface layer, while under cultivation, the trend is reversed. The findings of the evaluation are in consistence with the actual situation. Apparently, EWME model is very applicable to the evaluation of soil nutrient status of the artificial oasis.
中文关键词	熵权物元(EWME)模型 ; 土壤养分评价 ; 土地利用 ; 人工绿洲 ; 艾比湖流域 ; 干旱区
英文关键词	EWME model soil nutrient evaluation land-use types artificial oasis the Ebinur Lake Basin arid zone
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6082027
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236583
作者单位	1.南京信息工程大学应用气象学院, 江苏省大气环境与装备技术协同创新中心, 南京, 江苏 210044, 中国; 2.南京信息工程大学应用气象学院, 南京, 江苏 210044, 中国
推荐引用方式 GB/T 7714	蒋烨林,王让会,彭擎,等. 基于熵权物元模型的土壤养分评价:以新疆干旱区艾比湖流域人工绿洲为例[J],2017,33(9):852-859.
APA	蒋烨林,王让会,彭擎,吴晓全,刘燕,&李成.(2017).基于熵权物元模型的土壤养分评价:以新疆干旱区艾比湖流域人工绿洲为例.生态与农村环境学报,33(9),852-859.
MLA	蒋烨林,et al."基于熵权物元模型的土壤养分评价:以新疆干旱区艾比湖流域人工绿洲为例".生态与农村环境学报 33.9(2017):852-859.