ZHANG Binbin, WU Shufang, FENG Hao, et al. Effects of Organic Materials Combined with Rainwater Collection Measures on Soil Physicochemical Properties of Mountain Apple Orchards[J]. 2019, 33(4): 241-247.
DOI:
ZHANG Binbin, WU Shufang, FENG Hao, et al. Effects of Organic Materials Combined with Rainwater Collection Measures on Soil Physicochemical Properties of Mountain Apple Orchards[J]. 2019, 33(4): 241-247. DOI: 10.13870/j.cnki.stbcxb.2019.04.034.
Effects of Organic Materials Combined with Rainwater Collection Measures on Soil Physicochemical Properties of Mountain Apple Orchards
In order to explore the effects of organic materials combined with rainwater collection measures (OMR) on soil physicochemical properties of apple orchard under rain-fed conditions on the Loess Plateau
apple orchards in Yan'an of Shaanxi Province were selected to conduct the experiments in April 2016. Fish scale pit and rain-collecting pit were conducted on the reverse slope of crown projection surface of apple trees
and the effects of different dosages of organic materials (5 250 kg/hm2 (OMR1)
4 500 kg/hm2 (OMR2)
3 750 kg/hm2 (OMR3) and 0 kg/hm2 (CK)) and traditional treatment (T) on soil physicochemical properties were studied. Soil water content and electrical conductivity in 0-300 cm soil layer
nitrate nitrogen content in 0-200 cm soil layer and soil bulk density and saturated hydraulic conductivity in 0-100 cm soil layer were determined. The results showed that OMR could significantly increase the soil moisture content in 0-300 cm soil layer
and the average soil moisture content increased most significantly in OMR2 treatment. The soil root wetting areas in OMR1
OMR2 and OMR3 treatment were mainly concentrated in 0-100 cm soil layer. In the 0-300 cm soil layer
the multiple average moisture content of OMR2 treatment was the highest (14.87%)
while that of OMR1
OMR3
CK and T treatment was 14.74%
14.80%
12.79% and 8.66%
respectively. The OMR could significantly increase the content of nitrate nitrogen in 0-200 cm soil layer
especially in 40-100 cm soil layer. The OMR could significantly reduce soil bulk density
especially the bulk density of 20-60 cm soil layer. The OMR could increase soil saturated hydraulic conductivity
especially in 0-40 cm soil layer. The OMR could increase soil electrical conductivity
and the peak value appeared in 60-100 cm soil layer
and the electrical conductivity of 0-300 cm soil layer followed the order of OMR2 > OMR1 > OMR3 > CK > T. Overall
the OMR in Yan'an
Shaanxi could significantly improve soil moisture content
and nitrate nitrogen content
soil saturated hydraulic conductivity and electrical conductivity
reduce soil bulk density
with make fruit trees grow in suitable environment and promote sustainable development of local fruit industry.
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Related Author
XU Yin
YUAN Jiang
FU Suhua
LI Shuyi
YUAN Yaoyao
ZHANG Chenchen
QIAO Jiangbo
ZHU Yuanjun
Related Institution
Faculty of Geographical Science, Beijing Normal University
State Key Laboratory of Earth Surface Processes and Hazards Risk Governance, Beijing Normal University
Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences
State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xian