[1]程 杰,马增辉,张 露,等.黄土丘陵区空心村土地复垦后不同年限土壤肥力评价[J].水土保持研究,2021,28(02):49-53.
　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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黄土丘陵区空心村土地复垦后不同年限土壤肥力评价

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 28 期数: 2021年02期 页码: 49-53 栏目: 出版日期: 2021-02-06
Title:
Evaluation of Soil Fertility in Different Years After Reclamation of Hollow Village in Loess Highland Area
文章编号:
1005-3409(2021)02-0049-05
作者:
程 杰1,2,3,4, 马增辉2, 张 露2,3, 魏 静2,3, 师晨迪 2,3
(1.陕西地建土地工程技术研究院有限责任公司, 西安 710075; 2.陕西省土地工程建设集团有限责任公司, 西安 710075; 3.自然资源部 退化及未利用土地整治工程重点实验室, 西安 710000; 4. 西安理工大学 水利水电学院, 西安 710048)
Author(s):
CHENG Jie1,2,3,4, MA Zenghui2, ZHANG Lu2,3, WEI Jing2,3, SHI Chendi 2,3
(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)
关键词:
空心村;  层次分析法;  土壤肥力
Keywords:
hollow village;  analytic hierarchy process;  soil fertility
分类号:
S28; S158
文献标志码:
A
摘要:
为提升空心村土地整治质量,科学指导复垦耕地培肥及管理,以陕西省渭南市澄城县空心村为研究对象,采集了不同复垦年限村庄复垦前后土壤及周边荒草地土壤样品,选取物理、化学等8个评价指标,采用层次分析法确定因子权重,构建评价模型并进行了土壤肥力评价。结果表明:(1)复垦前后及周边荒草地土壤肥力指标的权重分别为容重0.028,质地0.75,pH值0.016,电导率0.041,有机质0.303,全氮0.159,速效磷0.159,有效钾0.159,CR<0.1,符合一致性检验;(2)村庄复垦前平均肥力指数为57.67,复垦后最高肥力指数为72.91,平均值达到68.59,不同利用的土壤综合肥力指数表现为:空心村复垦后>荒草地>空心村复垦前;(3)空心村复垦后土壤综合肥力指数与复垦年限正相关,复垦后肥力改良指数平均值为20.08%;(4)有机质对土壤肥力影响最大,与土壤综合肥力的指数相关系数R2为0.524 6,因子间影响大小表现为:有机质>速效钾>有效磷>全氮>电导率>pH值。综上,复垦可提升空心村土壤肥力,在复垦过程中调控有机质含量可较快提升土壤肥力。
Abstract:
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.

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备注/Memo

收稿日期:2019-12-10 修回日期:2020-05-12
资助项目:国家科技支撑计划(2014BAL01B03),陕西省重点科技创新团队计划项目(2016KCT-23),陕西省自然科学基础研究计划面上项目(2018JM4023)
第一作者:程杰(1986—),女,重庆人,博士,高级工程师,主要从事水文学及水资源、土地工程等相关研究工作。E-mail:568761241@qq.com

更新日期/Last Update: 2021-02-10