不同农作方式对阿克苏地区土壤物理特性的影响.

[Objective] The present paper aimed to explore the impact of different farming methods on soil physical properties in Aksu area.[Method] The soil under five typical farming methods including wheat field, single-cropping jujube orchard, jujube-wheat intercropping garden, wasteland single-cropping jujube orchard, and abandoned land were collected in Aksu area, and the main physical characteristics were studied through field investigation and indoor analysis.[Result] Compared with farmland wheat fields and abandoned land, the soil bulk density of jujube orchard and jujube-wheat intercropping orchard is reduced, and soil porosity, aggregate stability, and soil moisture content are correspondingly improved; soil wet sieve aggregate composition under different farming methods. They are mainly 2-0.25 mm intermediate aggregates, with a content of 38.95%-53.74%.After the farmland was converted into a jujube orchard or a jujube-wheat intercropping orchard, the content of soil aggregates over 0.25 mm increased significantly (P<0.05), and both soil MWD and GMD showed an increase. After the abandoned land was converted into a jujube orchard, the content of soil powder + clay aggregates dropped by 5.25%-43.86%.The content of soil macroaggregates, intermediate aggregates and microaggregates showed an increase, with the increasing range of 9.07%-64.92%, 0.49%-4.19% and 0.72%-20.11%, respectively. [Conclusion] Compared with farmland wheat fields and abandoned land, jujube orchards and jujube-wheat intercropping gardens are beneficial to the stability of soil aggregates and can promote the formation of good soil structure. [ABSTRACT FROM AUTHOR]