Results 1 to 10 of about 96 (74)
Effects of Artificial Cyanobacterial Crust on Soil Wind Erosion Control in Arid Regions [PDF]
, 2023 [Objective] The influence factors of artificial cyanobacterial crust on soil threshold wind velocity and wind erosion rate, and the effects of wind erosion prevention and control were analyzed, and the feasibility of using artificial cyanobacterial crust
Gao Liqian, Huang Minghui, Zhao Yunge
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Analysis on Stoichiometric Characteristics of a Populus Alba L. var Pyramidalis Protective Forest in Alar Reclamation Area [PDF]
, 2022 [Objective] The contents of C, N, P, and their ecological stoichiometry characteristic contained in foliage, branches, litter, and soil of different age grades of Populus alba L.
Ge Tingjin +5 more
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Effects of Different Mulching Measures on Distribution of Organic Carbon and Inorganic Carbon in Soil Aggregates Under Spring Maize Cultivation [PDF]
, 2023 [Objective] The effects of different mulching methods on the distribution of organic and inorganic carbon in soil aggregates on the Loess Plateau, and the mechanism under which soil aggregates sequester carbon under mulched conditions were determined in ...
Li Meng +8 more
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Effects of drying-wetting cycle caused by rainfall on soil respiration: Progress and prospect [PDF]
, 2018 Soil respiration is an important part of the carbon cycle in terrestrial ecosystems. The changes of soil respiration caused by rainfall directly affect global carbon balance.
朱连奇 +3 more
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Shuitu Baochi Xuebao, 2023 提高土壤水分利用是黄土旱塬区农业可持续发展的重要目标。通过4年春玉米田间试验,研究秸秆深埋配合减氮对土壤剖面耗水和水分利用分布的影响,旨在为黄土高原旱作农业区水肥科学管理提供科学依据。试验于2017年4月至2020年9月在陕西长武中科院黄土高原农业生态试验站进行。试验设置4个处理:常量施氮(CON1,N250 kg/hm2),秸秆深埋配合常量施氮(CON2,N250 kg/hm2+秸秆),减量施氮(CR1,N200 kg/hm2)和秸秆深埋配合减量施氮(CR2,N200 kg/hm2+秸秆)。结果表明:(
张嫒嫒, 杨忠浩, 党廷辉
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Shuitu Baochi Xuebao, 2022 为研究不同秸秆还田量替代部分化肥后对黄土高原冬小麦产量、水肥利用效率和硝态氮积累特征的影响。于2018—2021年在晋南黄土旱塬冬小麦种植区,设置秸秆不还田(S0)、秸秆半量还田(S1/2)、秸秆全量还田(S1)、秸秆2倍量还田(S2)4个还田量处理,研究不同秸秆还田量替代化肥对冬小麦产量形成、水肥利用效率及土壤硝态氮残留的影响。结果表明:在黄土旱塬麦区,秸秆还田替代8.3%~31.9% N和15.7%~63.2% P2O5的基础上,冬小麦产量总体随秸秆还田量增加而增加,且在降水丰沛年份 ...
王嘉豪, 李廷亮, 黄璐, 宋红梅
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长期覆膜旱地苹果园表层土壤“隐性”退化下活性有机碳与酶活性差异
Shuitu Baochi Xuebao, 2021 为探明陇东旱塬雨养农业区旱作节水措施下黄绵土物理稳定性机制和化学活性机制，揭示表层土壤有机碳贮存对土壤物理"隐性"退化的响应机制。以陇东旱塬区不同覆膜年限（2，4，6年）的苹果园表层土壤（0—20 cm）为对象，对土壤物理性状、质地分级进行判断，监测微生物量碳（MBC）、易氧化有机碳（EOC）、颗粒有机碳（POC）、可溶性有机碳（DOC）等指标的动态变化，表征土壤有机碳变化趋势，借助β-1，4-木糖苷酶（βX）、β-1，4-葡萄糖苷酶（βG）、纤维二糖水解酶（CBH）活性表征土壤碳代谢循环特性 ...
孙文泰 +5 more
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Shuitu Baochi Xuebao, 2022 探讨黄土旱塬冬小麦区不同有机肥替代化肥氮对小麦产量及土壤碳氮组分的影响,为该区减施化学氮肥、促进小麦提质增效和农业绿色可持续发展提供理论依据。于2019年在山西黄土旱塬冬小麦种植区设置100%化肥N处理(HF)、10%腐殖酸N+90%化肥N (F1)、30%腐殖酸N+70%化肥N (F3)、50%腐殖酸N+50%化肥N (F5)、10%有机肥N+90%化肥N (Y1)、30%有机肥N+70%化肥N (Y3)、50%有机肥N+50%化肥N (Y5)7个试验处理,系统研究了不同比例腐殖酸 ...
姜丽伟 +6 more
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Synergistic Effects of No-tillage Combined with Mulching on Improving Soil Moisture Use and Potato Yield [PDF]
[Objective] Considering the severity of both spring drought and spring cold, and shallow effective topsoil in the southern mountainous areas of Ningxia Province, synergistic effects of no tillage combined with mulching on improving soil moisture use and ...
DUAN Ruibing +5 more
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Shuitu Baochi Xuebao, 2022 通过3年田间试验，研究减氮和秸秆还田对黄土高原南部旱地春玉米产量、硝态氮残留量及微生物学特性等指标的影响。研究共设置不施肥（CK）、传统施氮（N250）、传统施氮配合秸秆还田（N250+S）、减氮20%（N200）、减氮20%配合秸秆还田（N200+S）5个处理。结果表明：（1）连续3年减氮20%和秸秆还田可以提高玉米产量，阻控土壤硝态氮淋溶，N200较N250处理玉米增产5.9%，N200+S较N200处理玉米增产7.4%，N250+S较N250处理玉米增产9.1%；0－300 cm土层 ...
刘晶, 郑利芳, 王颖, 党廷辉
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