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Assessing Soil Quality for Sustainable Cropland Management Based on Factor Analysis and Fuzzy Sets: A Case Study in the Lhasa River Valley, Tibetan Plateau

文献类型：期刊论文

作者Dai, Fuqiang1; Lv, Zhiqiang1; Liu, Gangcai2,3,4
刊名SUSTAINABILITY
出版日期2018-10-01
卷号10期号:10页码:17
关键词soil quality index minimum data set agricultural land use soil types Tibetan Plateau
ISSN号2071-1050
DOI10.3390/su10103477
通讯作者Dai, Fuqiang(daifq@ctbu.edu.cn) ; Liu, Gangcai(liugc@imde.ac.cn)
英文摘要Ecologically fragile cropland soils and intensive agricultural production are characteristic of the valley area of the Tibetan Plateau. A systematic assessment of soil quality is necessary and important for improving sustainable cropland management in this area. This study aims to establish a minimum data set (MDS) for soil quality assessment and generate an integrated soil quality index for sustainable cropland management in the Tibetan Plateau. Soil samples were collected from the 0-20 cm depths of agricultural land in the middle and lower reaches of the Lhasa River. These samples were analyzed by routine laboratory methods. Significant differences were identified via statistical test between different soil types and land use types for each soil property. Principal component analysis was used to define a MDS of indicators that determine soil quality. Consequently, effective porosity, pH, total organic C, total N, available P, and catalase were identified as the final MDS. The soil quality index was obtained by the fuzzy-set membership function and the linear weighted additive method. The soil quality index differed significantly between the soil types and land use types. The soil quality can be ranked based on their indices in the following order: 1. Grain land with meadow soils, 2. Grain land with steppe soils, 3. Greenhouse vegetable land with fluvo-aquic soils, 4. Grain land with fluvo-aquic soils. The soils with higher soil quality indices exhibited better soil structure, higher nutrient contents, and superior resistance to water and nutrient loss. While the intensive tillage practices associated with vegetable production could reduce the values for effective porosity, pH and catalase, the application of appropriate fertilizers increased the values for total organic C, total N and available P. Therefore, the MDS method is an effective and useful tool to identify the key soil properties for assessing soil quality, and provides guidance on adaptive cropland management to a variety of soil types and land use types.
WOS关键词MINIMUM DATA SET ; LONG-TERM FERTILIZATION ; WHEAT CROPPING SYSTEM ; PHYSICAL QUALITY ; ORGANIC-MATTER ; INDICATORS ; CHINA ; TILLAGE ; YIELD ; IDENTIFICATION
资助项目National Natural Science Foundation of China[41301351]
WOS研究方向Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000448559400119
出版者MDPI
资助机构National Natural Science Foundation of China
源URL[http://ir.imde.ac.cn/handle/131551/24380]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
通讯作者Dai, Fuqiang; Liu, Gangcai
作者单位1.Chongqing Technol & Business Univ, Coll Tourism & Land Resources, 19 Xuefu Rd, Chongqing 400067, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, 9,Block 4,Renminnanlu Rd, Chengdu 610041, Sichuan, Peoples R China
3.Minist Water Resources, 9,Block 4,Renminnanlu Rd, Chengdu 610041, Sichuan, Peoples R China
4.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式
GB/T 7714		 Dai, Fuqiang,Lv, Zhiqiang,Liu, Gangcai. Assessing Soil Quality for Sustainable Cropland Management Based on Factor Analysis and Fuzzy Sets: A Case Study in the Lhasa River Valley, Tibetan Plateau[J]. SUSTAINABILITY,2018,10(10):17.
APA Dai, Fuqiang,Lv, Zhiqiang,&Liu, Gangcai.(2018).Assessing Soil Quality for Sustainable Cropland Management Based on Factor Analysis and Fuzzy Sets: A Case Study in the Lhasa River Valley, Tibetan Plateau.SUSTAINABILITY,10(10),17.
MLA Dai, Fuqiang,et al."Assessing Soil Quality for Sustainable Cropland Management Based on Factor Analysis and Fuzzy Sets: A Case Study in the Lhasa River Valley, Tibetan Plateau".SUSTAINABILITY 10.10(2018):17.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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