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[1]ZHANG Qingyun,WANG Ninggeng,YANG Zhaoxia,et al.Analysis of Yield and Soil Water Spatiotemporal Variation in Different Densities of Artificial Planting Glycyrrhiza uralensis in Sandy Land of Arid Region of Ningxia[J].Research of Soil and Water Conservation,2017,24(01):31-35.

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Analysis of Yield and Soil Water Spatiotemporal Variation in Different Densities of Artificial Planting Glycyrrhiza uralensis in Sandy Land of Arid Region of Ningxia

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 01 Page number: 31-35 Column: Public date: 2017-02-28

Title:: Analysis of Yield and Soil Water Spatiotemporal Variation in Different Densities of Artificial Planting Glycyrrhiza uralensis in Sandy Land of Arid Region of Ningxia

Author(s):: ZHANG Qingyun¹, WANG Ninggeng², YANG Zhaoxia³, ZUO Zhong¹, LI Ming¹; 1. Desertification Control Research Institute, Ningxia Academy of Agriculture and Forestry, Yinchuan 750002, China;
2. Ningxia Yanchi County Forestry Bureau, Yanchi, Ningxia 751500, China;
3. Ningxia Yanchi County Technology Bureau, Yanchi, Ningxia 751500, China

Keywords:: Clycyrrhiza uralensis; planting density; soil water

CLC:: S152.7

DOI:: -

Abstract:: Water is one of the most important limiting ecological factors of impact cultivated Clycyrrhiza uralensis in sandy land of central arid region of Ningxia. The soil moisture characteristic variation and yield under different densities of cultivated Clycyrrhiza uralensis were analyzed to determine the best planting density of the cultivated Clycyrrhiza uralensis. The results showed that: (1) the soil moisture variation coefficient and standard deviation in different planting density of Glycyrrhiza uralensis showed increased first and then gradually decreased with the increase of soil depth; (2) the variation of soil moisture magnitude of vertical section under Glycyrrhiza uralensis in different planting densities is divided into 0—20 cm active layer, 20—80 cm sub-active layer and 80—100 cm relatively stable layer, the soil moisture followed the order: 180 000 individual/hm² > 150 000 individual/hm² > 120 000 individual/hm² > 210 000 individual/hm² > 90 000 individual/hm²; (3) the seasonal dynamics of soil moisture can be divided into three periods: the soil moisture accumulation period (May—June), soil moisture depletion period (July—September), soil moisture stabilization period (October—next April); (4) from the overall analysis of different planting density, yield and characteristics of water changes, the best planting density of cultivated Clycynhiza uralensis is about 180 000 individual/hm².

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