数字农科院2.0

引黄灌区次生盐渍化对土壤质量与耕地产能的影响

文献类型： 中文期刊

关键词： 土壤次生盐渍化;;土壤质量指数（SQI）;;耕地产能指数（CPI）;;随机森林模型;;引黄灌区;;内蒙古

期刊名称：中国农业科学

ISSN： 0578-1752

年卷期： 2025 年

页码：

收录情况： 北大核心（2023版） ; ; CSCD（2025-2026年度） ; ; 科技核心（2024版） ; ; 农林核心（2024版）

摘要： Abstract:【Objective】This study aimed to explore the impact mechanism of soil secondary salinization on soil quality and cropland productivity, thereby providing a theoretical basis for improving saline-alkali soil and enhancing productivity in the Yellow River Irrigation District【. Method】In this study, typical saline-alkali cropland in Dalate Banner, Inner Mongolia was selected as the research area. Soil samples from the 0–20 cm soil layer were collected in May, July, and October 2023 using the systematic grid sampling method. A total of 17 soil indicators (encompassing physical, chemical, and microbial properties) were determined to analyze the spatiotemporal variation characteristics of soil salinization. The soil quality index (SQI) was evaluated by combining principal component analysis (PCA) with the weighting method. Additionally, linear regression, random forest model, and partial least squares path model (PLS-PM) were used to reveal the impact mechanism of soil salinization on the cropland productivity index (CPI). 【Result】Soil secondary salinization indicators showed obvious spatial and temporal variability. Among them, soil electrical conductivity (EC) increased with the decrease of terrain, with the coefficient of spatial variation ranging from 29.2% to 61.2%. Moreover, the EC values in July and October increased by 82.6% and 161.6% respectively compared with those in May. The minimum data set for SQI constructed by PCA included mean weight diameter (MWD) of aggregates, available potassium (AK), and available phosphorus (AP). The average SQI in the study area was 0.50, and SQI＜0.60 accounted for 77.1%, while the average CPI was 0.62, and CPI＞0.80 accounted for 47.9%. Linear regression analysis showed that soil salinity indicators (especially EC) were negatively correlated with SQI and CPI, while SQI was significantly positively correlated with CPI (P＜0.05). Random forest model results showed that EC in May had the greatest effect on SQI, and EC in July and October had the greatest effect on CPI. PLS-PM analysis revealed that soil secondary salinization indicators had a direct negative effect on CPI (standard path coefficient=-0.610, P＜ 0.001) and an indirect effect through their negative impact on SQI (standard path coefficient=-0.694, P＜0.001), with a total effect of -0.789.【Conclusion】Soil secondary salinization impaired cropland productivity through the dual pathways of direct salt toxicity and indirect reduction of soil quality. Therefore, a synergistic strategy of “salt control and quality enhancement” should be adopted to improve the productivity of salinized cropland in the Yellow River Irrigation District.

分类号：

  • 相关文献

[1]The Nicotiana benthamiana microtubule-associated E3 ubiquitin ligase degrades a host immune regulator and a viral effector to enhance antiviral defense. 王坤,,,,傅帅,,,,谭羽翀,,,,吴良,,,,王亚琴,,,,周雪平. 2025

[2]Fine-tuning of the CRWN2-NTL9 module to repress PR1 expression by a viral effector during geminivirus infection. 苏晨露,,,,王亚琴,,,,李方方,,,,梅玉振,,,,周雪平. 2025

[3]A key heavy metal-binding protein orchestrates plant resistance against a geminivirus. 刘慧,,,,胡涛,,,,李方方,,,,王亚琴,,,,梅玉振,,,,周雪平. 2025

[4]Divergence in global plant carbon use efficiency across data-driven estimates, satellite product, and process-oriented models. Lei He,,,,Josep Peñuelas,,,,Jingfeng Xiao,,,,Xiaolu Tang,,,,Yue He,,,,Menglin Si,,,,Zhao-Liang Li. 2025

[5]Reconstruction of cloudy land surface temperature by combining surface energy balance theory and solar-cloud-satellite geometry. Wenhui Du,,,,Zhao-Liang Li,,,,Zhihao Qin,,,,Jinlong Fan,,,,Xiangyang Liu,,,,Chunliang Zhao,,,,Kun Cao. 2025

[6]Contrasting temporal dynamics of land surface temperature response to different types of forest loss. Jing Li,,,,Zhao-Liang Li,,,,Xiangyang Liu,,,,Yitao Li,,,,Meng Liu,,,,Nanshan You,,,,Hua Wu,,,,Lei He,,,,Menglin Si,,,,Ronglin Tang,,,,Chenghu Zhou,,,,Wei Zhao,,,,Si-Bo Duan,,,,Pei Leng,,,,Wenqi Liu,,,,Enyu Zhao,,,,Bo-Hui Tang,,,,Zhenong Jin. 2025

[7]Key genes and mechanisms underlying natural variation of silique length in oilseed rape (Brassica napus L.) germplasm. Quaid Hussain, Jiepeng Zhan, Huabing Liang, Xinfa Wang, Guihua Liu, Jiaqin Shi, Hanzhong Wang. 2021

[8]Engineering plants using diverse CRISPR-associated proteins and deregulation of genome-edited crops. Zaman, Qamar U.,Raza, Ali,Lozano-Juste, Jorge,Chao, Li,Jones, Michael G. K.,Wang, Hua-Feng,Varshney, Rajeev K.. 2024

[9]上部烟叶灰分及其钙、镁、硫、磷含量与烟叶品质的关系及近红外模型研究. 付秋娟,,郝贤伟,,杜咏梅,,毕一鸣,,孙婷婷. 2025

[10]Evaluation of different clean heat supply modes based on crop straws in the rural areas of Northern China. 霍丽丽,,姚宗路,,贾吉秀,,赵立欣,,丛宏斌,,孟海波,,袁艳文. 2020

[11]Development and characterization of chromosome segment substitution lines derived from Oryza rufipogon in the genetic background of O. sativa spp. indica cultivar 9311. 乔卫华,,齐兰,,程志军,,苏龙,,李静,,孙妍,,任军芳,,郑晓明,,杨庆文. 2016

[12]OsCOL16, encoding a CONSTANS-like protein, represses flowering by up-regulating Ghd7, expression in rice. 吴玮勋,,郑晓明,,陈代波,,张迎新,,马薇薇,,张欢,,孙连平,,杨峥赋,,赵春德,,詹晓德,,沈喜红,,于萍,,付亚平,,朱珊珊,,曹立永,,程式花. 2017

[13]An egg parasitoid assesses host egg quality from afar using oviposition-induced plant volatiles. Tian, Zhiqiang,Wang, Yuanyuan,Sun, Tao,Hu, Xiaoyun,Hao, Wanting,Zhao, Te,Wang, Yanan,Zhang, Lei,Jiang, Xingfu,Turlings, Ted C. J.,Li, Yunhe. 2025

[14]Regulation of plant immunity through histone H3 β-hydroxybutyrylation-mediated transcriptional control. 徐秋涛,,陈正庭,,王瑞,,,,马瑄,,,,段宇航,,,,海杜,,,,陈静,,,,程仲毅,,,,郑路,,,,黄俊斌,,,,张积森,,,,赵毓,,,,陈晓洋. 2025

[15]A glutamyl–tRNA reductase and its binding protein promote transitory starch biosynthesis and enhance grain quality and yield in rice. 段影青,李晓雪,马刘洋,焦桂爱,操瑞节,董楠楠,李欣伟,王梓航,王平,唐绍清,魏祥进,胡培松. 2025

[16]Epi-transcriptome analysis reveals the lack of N6-methyladenosine modification in two RNA viruses infecting watermelon. 潘福安,,,,荆嘉贤,,,, Yanhong Qiu,,,,Maoying Li,,,,周雪平,,,,李少芳. 2025

[17]黄曲霉毒素阻控与花生超级结瘤耦合效应研究初报. 周扬,,岳晓凤,,唐晓倩,,闫洪林,,张奇,,李培武. 2021

[18]盐碱地麦后复种绿肥与氮肥减施对小麦产量、环境 足迹及经济效益的协同效应. 张梦璇,,常芳弟,,魏禾雅,,李晓红,,伍林美,,张宏媛. 2025

[19]Mobile genetic elements affect the dissemination of antibiotic resistance genes (ARGs) of clinical importance in the environment. Ye Li ,,,,Ruilin Li ,,,,Jie Hou ,,,, Xuan Sun ,,,, Yajun Wang,,,, Linyun Li ,,,,Fengxia Yang ,,,,Yanpo Yao ,,,, Yi An. 2023

[20]Process simulation and economic and environmental evaluation of a corncob-based biorefinery system. Fang Liu, Xiang Guo, Yuan Wang, Guanyi Chen, Li'an Hou. 2021

作者其他论文 更多>>