[1]CHENG Jie,MA Zenghui,ZHANG Lu,et al.Evaluation of Soil Fertility in Different Years After Reclamation of Hollow Village in Loess Highland Area[J].Research of Soil and Water Conservation,2021,28(02):49-53.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 02
Page number:
49-53
Column:
Public date:
2021-02-06
- Title:
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Evaluation of Soil Fertility in Different Years After Reclamation of Hollow Village in Loess Highland Area
- Author(s):
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CHENG Jie1,2,3,4, MA Zenghui2, ZHANG Lu2,3, WEI Jing2,3, SHI Chendi
2,3
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(1.Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi'an 710075, China; 2.Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi'an 710075, China; 3.Key Laboratory of Degraded and Unutilized Land Remediation Engineering, Ministry of Nature Resources, Xi'an 710000, China; 4.Institute of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an 710048, China)
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- Keywords:
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hollow village; analytic hierarchy process; soil fertility
- CLC:
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S28; S158
- DOI:
-
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- Abstract:
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In order to improve the quality of land consolidation in hollow villages and scientifically guide the cultivation and management of reclaimed cultivated land, we took Chengcheng County, Weinan City, Shaanxi Province as the research site, collected soil samples of different reclaimed villages before and after reclamation, selected eight evaluation indicators such as physics and chemistry, uses analytic hierarchy process to determine the weights of factors, and constructed an evaluation model for soil fertilizer. The results showed that:(1)the weight of soil fertility indexes before and after reclamation were that bulk density was 0.028, texture was 0.75, pH value was 0.016, electrical conductivity was 0.041, organic matter was 0.303, total nitrogen was 0.159, available phosphorus was 0.159, available potassium was 0.159 and CR was less than 0.1, which accorded with the consistency test;(2)the average fertility index of villages before reclamation was 57.67, and the highest fertility index after reclamation was 72.91, the average reached 68.59, with different benefits; the soil comprehensive fertility index decreased in the order: hollow village after reclamation>barren grassland>hollow village before reclamation;(3)soil comprehensive fertility index of hollow village after reclamation was positively correlated with reclamation years, the average fertility improvement index after reclamation was 20.08%;(4)the effect of organic matter on fertility had highest, determination coefficient of correlation between organic matter and soil fertility index was 0.524 6; the effect of inter-factor decreased in the order: organic matter>quick-acting potassium>effective phosphorus>total nitrogen>conductivity>pH value. In summary, reclamation can enhance the soil fertility of hollow villages, and regulate soil organic matter content in the process of reclamation, which can rapidly enhance soil fertility.