نوع مقاله : مروری
نویسندگان
1 استادیار پژوهش، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان خوزستان، سازمان تحقیقات، آموزش و ترویج کشاورزی، اهواز، ایران؛
2 دانشیار پژوهش، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان خوزستان، سازمان تحقیقات، آموزش و ترویج کشاورزی، اهواز، ایران؛
3 بخش تحقیقات خاک و آب، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی خوزستان، سازمان تحقیقات، آموزش و ترویج کشاورزی، اهواز، ایران
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
Study of soil conditions in agricultural lands and natural resources is essential for optimal resource management and achieving maximum economic productivity. Therefore, in this article, in addition to examining the current status of soils in Khuzestan Province, the most important existing challenges and limitations of soil resources in Khuzestan Province are also stated. The results of the studies conducted on the status of the province's soils over a ten-year period (1390-1400) with the collection of approximately 1100 surface samples have shown that soil salinity in agricultural lands in Khuzestan Province is increasing and the concentration of absorbable nutrients and organic carbon have mainly decreased in the province's soils. This indicates that despite all the management measures taken in this province, the soil conditions are not very suitable for production and exploitation, which is mainly due to mismanagement and lack of proper soil planning. Also, the results of the distribution status and percentage of land classes determined each year, which were extracted after reviewing about 200 study pedons from 140 land visits, show that the most land use requests each year are related to the construction of industries, workshops and factories, tourism projects, fish and shrimp farming, national housing boom, and finally the construction of greenhouses. The range of changes in the land classification classes studied varies from classes I (Arable) to VI (non- Arable) with different subclasses, but the highest distribution of classes each year is related to classes V (undretemind Arable and with sever limitation) and III (Arable with moderate limitation). The majority of the V classes are separated, especially in the southern and western regions of the province (such as the cities of Abadan, Mahshahr, etc.) and are related to the limitation of soil salinity and alkalinity. Therefore, in order to prevent the change of use and to better preserve and manage lands with salinity and alkalinity problems, it is necessary to localize and revise the methodology used to determine the cultivability of agricultural lands and apply methods based on scientific findings and accurate expert experiences. Therefore, salinity, lack of organic matter, reduced fertility, erosion, etc. are among the major problems of the province's soils, and as a result, the development of soil governance and related policies, the development of investment in sustainable soil management, research with an emphasis on soil and effective education, and the expansion of soil programs should be a priority.
کلیدواژه‌ها [English]
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