干旱区生态环境知识资源中心(Arid): Effects of irrigation and cultivation on the chemical indices of saline-sodic soils in a calcareous environment

Arid

DOI	10.1007/s13762-017-1606-6
	Effects of irrigation and cultivation on the chemical indices of saline-sodic soils in a calcareous environment
	Rezapour, S.; Kalashypour, E.
通讯作者	Rezapour, S.
来源期刊	INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
ISSN	1735-1472
EISSN	1735-2630
出版年	2019
卷号	16 期号:3 页码:1501-1514
英文摘要	Studies on saline-sodic soils have a growing concern during time in many arid and semiarid nations due to human population pressures and need to produce more food and fiber. Nevertheless, little data are available about the quality attributes of the soils when affected by irrigation and cultivation. This study highlights the response of selected chemical indicators of four soil types (Aquic Natrargids, Sodic Aquicambids, Typic Aquisalids, and Typic Halaquepts) associated with calcareous salt-affected soils when changing to cropland. The results revealed a considerable drop in the amounts of soil pH (0.2-0.8 unit), electrical conductivity (69-82%), sodium absorption ratio (62-73%), exchangeable Na (65-90%), and exchangeable sodium percentage (52-69%) following the conversion of saline-sodic soils to cropland, indicating that the processes of desalinization and desodification were promoted by cultivation practices. For the majority of the study soils, an increasing pattern was recorded in the values of organic carbon (15-130%), total N (37-157%), available P (1-7%), exchangeable Ca (20-96%) and Mg (83-94%), and DTPA-extractable Mn (8-85%), Zn (48-85%), Cu (7-75%) with cultivation, whereas the amounts of cation exchange capacity, exchangeable K, available K, and DTPA-extractable Fe were decreased by 1-29, 8-54, 10-60, and 2-54%, respectively. Based on the land productivity index (LPI), 75% of the soils had an increasing trend (a rise of 10-31%) in the LPI [with the improvement of the productive class from average (LPI=20-34) to good class (LPI=35-64)] and 25% had a decreasing pattern (a drop of 10%) after cultivation.
英文关键词	Saline-sodic soil Cropland Soil chemical indicators Soil type Land productivity
类型	Article
语种	英语
国家	Iran
收录类别	SCI-E
WOS记录号	WOS:000460696700024
WOS关键词	CARBON DYNAMICS ; STRATEGIES ; AMELIORATION ; REGION ; ZINC ; CROP
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216436
作者单位	Urmia Univ, Dept Soil Sci, POB 165, Orumiyeh 57134, Iran
推荐引用方式 GB/T 7714	Rezapour, S.,Kalashypour, E.. Effects of irrigation and cultivation on the chemical indices of saline-sodic soils in a calcareous environment[J],2019,16(3):1501-1514.
APA	Rezapour, S.,&Kalashypour, E..(2019).Effects of irrigation and cultivation on the chemical indices of saline-sodic soils in a calcareous environment.INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY,16(3),1501-1514.
MLA	Rezapour, S.,et al."Effects of irrigation and cultivation on the chemical indices of saline-sodic soils in a calcareous environment".INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY 16.3(2019):1501-1514.