Results 21 to 30 of about 288 (95)
The Terraced Walls Significantly Influence the Spatial Distribution of Soil Water in Terraced Areas on the Loess Plateau [PDF]
[Objective] Converting slopes into terraces is a crucial soil and water conservation and agricultural measure on the Loess Plateau. Understanding the impact of terraced walls on soil water is conducive to preserving soil water and enhancing terrace ...
BAI Chenyun +5 more
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Review of techniques and case studies for saline-alkali land amelioration in the coastal regions of China [PDF]
Soil salinization is one of the major challenges in agricultural production and ecological development. With the rapid development of China’s coastal areas, land resources are becoming increasingly scarce, creating an urgent need for the improvement and ...
Hang LYU +5 more
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Soil Preferential Flow Characteristics in Coal Mine Subsidence Area under Different Rainfall Duration [PDF]
[Objective] Research on the preferential flow characteristics triggered by cracks in coal mining subsidence areas can provide support for scientific and rational development of water resource management and ecological management practice in the mining ...
DAI Bin +4 more
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Analysis of differences in physicochemical properties and bacterial community characteristics of rhizosphere soil in apple orchards under different cover treatments [PDF]
[Objective] Cover cropping is a widely adopted soil management technique used in fruit tree cultivation. By planting specific vegetation to cover the ground, this practice significantly influences nutrient cycling, microbial activity, and biodiversity ...
CAI Rongjing +10 more
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Shuitu Baochi Xuebao, 2011 土壤侵蚀过程中,土壤团聚体的迁移反映了团聚体的破碎程度及径流的搬运能力,直接影响着侵蚀强度。以东北典型薄层黑土区耕层土壤为研究对象,采用模拟降雨试验方法,研究裸露休闲、纱网覆盖与秸秆覆盖3种地表条件下不同粒级(>5mm,2～5mm,1～2mm,0.5～1mm,0.25～0.5mm和秸秆覆盖;(3)纱网覆盖和秸秆覆盖下的团聚体粒级分布与裸露休闲的相比,差异较为明显的均是秸秆覆盖。
安娟, 卢嘉, 郑粉莉, 李桂芳
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Shuitu Baochi Xuebao, 2016 为探索秸秆覆盖与滴灌施肥结合栽培模式下夏玉米水肥利用效率和增产效果，于2014—2015年在北京市大兴区进行无施肥覆盖(T1)、无施肥不覆盖(T2)、中肥覆盖(T3)、中肥不覆盖(T4)、高肥覆盖(T5)和高肥不覆盖(T6) 6种试验。结果表明：表层土壤温度和气温具有高度线性相关关系，秸秆覆盖可降低夏玉米生长季土壤温度的增温速率，T1、T3和T5较T2、T4和T6处理的土壤增温速率分别降低23.62%，13.65%和11.47%，全生育期秸秆覆盖较不覆盖日均土壤温度平均降低1.75 ...
张婉晴, 王秀茹, 周 杨
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Shuitu Baochi Xuebao, 2017 为了探讨在寒旱盐灌区覆盖秋浇后冻融土壤的冻融特性及水热盐协同调控机制，在盐渍土壤进行覆盖后秋浇田间冻融试验，设5个处理，秸秆覆盖量1.2 kg/m2（F1.2）、秸秆覆盖量0.9 kg/m2（F0.9）、秸秆覆盖量0.6 kg/m2（F0.6）、秸秆覆盖量0.3 kg/m2（F0.3）、未覆盖（CK）。结果表明：秸秆覆盖影响了土壤冻结融化推进过程，改变了土壤温度对气温变化的响应关系，影响了水分、盐分在土壤剖面（特别是土壤表层和耕作层）的重新分配，提高了翌年春季水分可利用量，抑制了表层及耕作层春季返盐 ...
梁建财 +5 more
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Shuitu Baochi Xuebao, 2006 试验于2002-2003年在中国科学院地理所禹城综合试验站进行，研究了秸秆覆盖和灌溉相结合条件下冬小麦-夏玉米一年两熟农田耕层土壤有机质及速效养分含量的动态变化．结果表明：秸秆覆盖对提高土壤有机质含量有重要作用。不覆盖农田中，灌溉可降低有机质含量。而覆盖农田中，这种降低作用不显著。在冬小麦生育期间，灌溉可使碱解氮的含量下降．覆盖处理下降的程度更大。秸秆覆蓝可明显提高速效磷的含量，灌溉可使其含量进一步增加。秸秆覆盖可明显提高耕层内速效钾的含量，夏玉米生育期间．灌溉处理速效钾含量升高。
李全起 +6 more
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Shuitu Baochi Xuebao, 2018 旨在明确深松和秸秆覆盖2种措施在紫色土坡耕地中的水分养分流失特征规律，利用径流小区，结合平作、垄作、深松、完整秸秆覆盖和粉碎秸秆覆盖措施共设置9个试验处理，开展了2年的田间试验，对产量、地表径流、壤中流以及径流中的养分流失进行了测定。结果表明：（1）与平作相比，深松可显著增加壤中流量和壤中流中的总氮浓度，增加39.6%的总径流，以及85%的总氮量流失，同时还会降低玉米产量。（2）秸秆覆盖降低地表径流，增加壤中流量和壤中流中的总氮浓度，总径流增加6.4%，总氮量流失增加9.4%，秸秆覆盖对产量无显著影响。（
刘海涛 +6 more
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Shuitu Baochi Xuebao, 2005 试验于2 0 0 2 2 0 0 3年在中科院禹城综合试验站完成,研究了秸秆覆盖和灌溉对冬小麦农田耗水特性的影响,结果表明:秸秆覆盖能够增强灌溉水的入渗能力。随着灌溉量的增加,秸秆覆盖减少深层底墒水(SMBS)的消耗。灌溉显著增加冬小麦的耗水强度,返青后,覆盖处理冬小麦的耗水强度大于不覆盖处理。在播种到返青期间,覆盖比不覆盖处理平均少蒸散5 2 2 5mm。返青后,覆盖处理的阶段耗水量大于不覆盖处理 ...
李全起 陈雨海 于舜章 吴巍 周勋波 董庆裕 余松烈
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