干旱区生态环境知识资源中心(Arid): Spatial variability of soil quality within management zones: Homogeneity and purity of delineated zones

Arid

DOI	10.1016/j.catena.2021.105835
	Spatial variability of soil quality within management zones: Homogeneity and purity of delineated zones
	Zeraatpisheh, Mojtaba; Bottega, Eduardo Leonel; Bakhshandeh, Esmaeil; Owliaie, Hamid Reza; Taghizadeh-Mehrjardi, Ruhollah; Kerry, Ruth; Scholten, Thomas; Xu, Ming
通讯作者	Xu, M (corresponding author), Henan Univ, Coll Geog & Environm Sci, Kaifeng 475004, Peoples R China.
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2022
卷号	209
英文摘要	Fields are the original management zones used in agricultural ecosystems. Uniformity of soil within management zones (MZ) is crucial for sustainable soil management, long-term productivity, and avoiding environmental problems. When considering a new area for agricultural expansion or for improving the efficiency of existing agricultural practices, it is useful to identify homogeneous areas or MZs so that the land can be more sustainably used in the future. One way to identify MZs could be through soil quality assessment. Management zones were determined for an agroecosystem region in southern Iran with an area of 452 km(2), and the homogeneity and purity of delineated zones were examined by soil quality assessment. Soil quality grades were calculated using 421 top-soil samples and two methods: i) the total data set (TDS) and ii) the minimum data set (MDS). The spatial distribution of soil quality grades was mapped using a random forest model. MZs were delineated using a fuzzy kmeans classification algorithm based on the MDS. The random forest model mapped the spatial distribution of the soil quality well (R-2 > 0.871). Among five soil quality grades, three soil quality grades, high (II), moderate (III), and low (IV), were found to cover 90.74 and 93.11% of the total studied area as predicted by the TDS and MDS, respectively. The subsequent classification of the soil quality data into MZs using fuzzy k-means identified two different MZs (p < 0.05). This means that there were heterogeneous soil quality grades in each of the MZs. Consequently, when fuzzy k-means is used to define MZs for the classification of agricultural ecosystems, areas with different soil quality may occur within each MZ. Soil management would be theoretically better if soil quality within management zones were homogenous. This study offers a framework to investigate the homogeneity of delineated MZs in terms of soil quality.
英文关键词	Soil properties Random forest Machine learning Arid and semiarid regions Statistical analysis Geostatistics
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000720774200012
WOS关键词	PRECISION AGRICULTURE ; PRODUCTION SYSTEMS ; CULTIVATED AREA ; INDEXES ; DEGRADATION ; LAND ; VARIOGRAMS ; FERTILITY ; PROVINCE ; FIELD
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374534
作者单位	[Zeraatpisheh, Mojtaba; Xu, Ming] Henan Univ, Henan Key Lab Earth Syst Observat & Modeling, Kaifeng 475004, Peoples R China; [Zeraatpisheh, Mojtaba; Xu, Ming] Henan Univ, Coll Geog & Environm Sci, Kaifeng 475004, Peoples R China; [Bottega, Eduardo Leonel] Univ Fed Santa Maria, Cachoeira Sul Campus, BR-96506322 Cachoeira Do Sul, RS, Brazil; [Bakhshandeh, Esmaeil] Genet & Agr Biotechnol Inst Tabarestan, Sari, Iran; [Bakhshandeh, Esmaeil] Sari Agr Sci & Nat Resources Univ, Sari, Iran; [Owliaie, Hamid Reza] Univ Yasuj, Coll Agr, Yasuj, Iran; [Taghizadeh-Mehrjardi, Ruhollah; Scholten, Thomas] Univ Tubingen, Dept Geosci Soil Sci & Geomorphol, D-72070 Tubingen, Germany; [Taghizadeh-Mehrjardi, Ruhollah; Scholten, Thomas] Univ Tubingen, SFB 1070 Resource Cultures,Gartenstr 29, D-72074 Tubingen, Germany; [Taghizadeh-Mehrjardi, Ruhollah; Scholten, Thomas] Univ Tubingen, DFG Cluster Excellence Machine Learning, Tubingen, Germany; [Kerry, Ruth] Brigham Young Univ, Dept Geog, Provo, UT USA
推荐引用方式 GB/T 7714	Zeraatpisheh, Mojtaba,Bottega, Eduardo Leonel,Bakhshandeh, Esmaeil,et al. Spatial variability of soil quality within management zones: Homogeneity and purity of delineated zones[J],2022,209.
APA	Zeraatpisheh, Mojtaba.,Bottega, Eduardo Leonel.,Bakhshandeh, Esmaeil.,Owliaie, Hamid Reza.,Taghizadeh-Mehrjardi, Ruhollah.,...&Xu, Ming.(2022).Spatial variability of soil quality within management zones: Homogeneity and purity of delineated zones.CATENA,209.
MLA	Zeraatpisheh, Mojtaba,et al."Spatial variability of soil quality within management zones: Homogeneity and purity of delineated zones".CATENA 209(2022).