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Effect of Variation in Row Spacing on Soil Wind Erosion, Soil Properties, and Cyperus esculentus Yield in Sandy Land

文献类型： 外文期刊

作者： Liu, Yalan 1 ; Ren, Wei 5 ; Zhao, Yue 1 ; Li, Xiangyi 1 ; Li, Lei 1 ;

作者机构： 1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Key Lab Desert Plant Roots Ecol & Vegeta, Urumqi 830011, Peoples R China

2.Cele Natl Stn Observat & Res Desert Grassland Eco, Cele 848300, Peoples R China

3.Chinese Acad Sci, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China

4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

5.Jilin Acad Agr Sci, Changchun 130124, Peoples R China

关键词： Cyperus esculentus; soil erosion; soil property; plant growth; extreme arid region

期刊名称：SUSTAINABILITY （ 影响因子：3.889； 五年影响因子：4.089 ）

ISSN：

年卷期： 2022 年 14 卷 21 期

页码：

收录情况： SCI

摘要： Cyperus esculentus is highly adaptable to extremely arid conditions and functions of oil extraction and sand fixation. Numerous studies have investigated the influence of row spacing on traditional crop growth and soil physicochemical traits but have not determined how cultivation affects C. esculentus growth and soil properties. Therefore, we conducted a field experiment in a sandy land to explore the responses of the organ yields of C. esculentus, soil wind erosion, and soil properties to row spacing (30, 60, or 90 cm), and bare land was used as the control. The highest plant height, plant density, number of tillers, and organ yields were observed at 30 cm row spacing. However, the lowest degree of soil erosion was also observed at 30 cm row spacing, and the coverage of C. esculentus facilitated soil fixation and conservation. The levels of soil wind erosion in the control plot were 11.7, 3.1, and 4.9 times those at 30, 60, and 90 cm row spacing, respectively. The percentages of clay and silt increased, whereas sand particles decreased with decreasing levels of soil wind erosion. Soil texture improved, and soil nutrients and plant growth were altered. Soil nutrient concentrations, yields, and root nutrient concentrations were positively related to clay percentage and negatively related to sand particles. In addition, the microbial biomass carbon and nitrogen significantly increased in the C. esculentus treatment groups, suggesting that planting C. esculentus promotes the survival and development of microorganisms. Overall, this study indicated that planting C. esculentus can decrease the level of soil wind erosion and improve soil quality. Narrow row spacing (30 cm) has the highest crop yield and soil amelioration and produces optimal ecological and economic benefits.

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