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Journal of Drainage and Irrigation Machinery Engin  2019, Vol. 37 Issue (2): 160-165    DOI: 10.3969/j.issn.1674-8530.17.0270
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Response of artificial forests soil moisture on climate characteristics in loess region
FU Na, SONG Xiaoyu, XIA Lu, LI Lanjun, LI Huaiyou, LI Yaolin
1. State Key Laboratory of Ecohydraulics in Northwest Arid Region of China, Xi’an University of Technology, Xi’an, Shaanxi 710048, China; 2. Xifeng Experiment Station of Soil and Water Conservation, Yellow River Conservancy Committee, Xifeng, Gansu 745000, China
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Abstract The research was based on the Chinese pine, locust and arborvitae in Nanxiaohegou watershed, which was located in Qingyang city, Gansu province. The soil moisture of crop growing season from 2003 to 2012 was continuously observed. The difference of soil moisture content in different years, months and depths was analyzed by Duncan method.The response of soil moisture was researched in different soil depths to precipitation, temperature, SPEI in different artificial forests in Nanxiaohegou watershed. The results show that soil moisture content is decreased with the increase of soil depth, and held relatively stable ranges for a long time. The difference of Chinese pine woodland reflected at soil depths of 20 cm and 60 cm, showing three levels of variation, that of locust woodland showed at 20 cm and 40 cm depths, and that of arborvitae soil water content appeared at 40 cm depth of the difference. Moreover the correlation of soil water content and precipitation, temperature and SPEI was decreased with the increase of soil depth in the same type of plantation in Nanxiaohegou watershed. SPEI index was influenced by temperature and precipitation, therefore soil moisture content decreased with the increase of the temperature, and increased with the increase of the precipitation and SPEI index. The temperature, the precipitation and SPEI had the greatest effect on the soil water content of locust in Nanxiaohegou watershed.
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FU Na
SONG Xiao-Yu
XIA Lu
LI 蓝Jun
LI Huai-You
LI Yao-Lin
Key wordsNanxiaohegou watershed   artificial forests   soil moisture   Duncan multiple comparisons   standardized precipitation evapotranspiration index     
Received: 2017-12-14;
Cite this article:   
FU Na,SONG Xiao-Yu,XIA Lu et al. Response of artificial forests soil moisture on climate characteristics in loess region[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(2): 160-165.
 
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