Results 61 to 70 of about 485 (146)
Effect of arbuscular mycorrhizal fungi on the relationship between root respiration and ultraweak luminescence under salt stress in strawberry [PDF]
[Objective] Soil salinity poses a significant challenge to global agriculture. Salt stress inhibits root respiration and disrupts physiological and metabolic activities, impairing essential functions such as absorption and transport.
FAN Li +3 more
core +1 more source
Shuitu Baochi Xuebao, 2019 以吉林西部盐碱地区（前郭灌区）土壤为研究对象，选取不同盐碱程度的4块水田（P1、P2、P3和P4），采用野外实地调研采样与室内模拟试验相结合的方法，分别在培养期的第1，4，7，10，14，21，28，35，70天测定土壤CO2气体的排放通量，结合土壤基本理化性质，分析盐碱稻田矿化模拟培养过程中CO2通量的动态变化，研究土壤盐碱化程度对有机碳矿化过程的影响。结果表明：P1、P2、P3为弱碱化土，P4为强碱化土；各样地土壤有机碳（SOC）含量差异显著，并存在表层富集现象，与碱化度（ESP）呈显著负相关关系 ...
汤洁 +4 more
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Shuitu Baochi Xuebao, 2008 对松嫩平原西部退化盐碱草地土壤过氧化氢酶、过氧化物酶、多酚氧化酶、蛋白酶、转化酶及碱性磷酸酶活性的季节动态进行研究,结果表明:土壤过氧化物酶、蛋白酶和转化酶活性在碱斑及不同退化程度盐碱草地中的季节变化趋势不同,而过氧化氢酶、多酚氧化酶和碱性磷酸酶活性的季节变化趋势基本一致,其峰值出现在8月或9月;在不同退化程度的盐碱草地中,各种酶活性的季节变化幅度不同,过氧化氢酶、多酚氧化酶和碱性磷酸酶活性在中度、重度盐碱化草地中的变化幅度大于轻度盐碱化草地,而过氧化物酶、蛋白酶和转化酶活性在中度 ...
YUE, WANG, WANG, YAN
doaj
Salt tolerance analysis of CaNAC36 in peppers [PDF]
[Objective] Pepper is the largest vegetable crop planted in China. With the land salinization becoming more and more serious, it is urgent to accelerate the functional study of key genes related to pepper salt tolerance.
DIAO Weiping +4 more
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Shuitu Baochi Xuebao, 2019 通过室内土柱模拟试验，研究不同灌水量对盐渍土的改良效果。试验共设计3个不同灌水量，分别为S1（200 mm）、S2（300 mm）、S3（400 mm）。结果表明：（1）灌溉淋洗对0-40 cm土壤盐分淋失影响较大，其中0-20 cm脱盐率最高，表现为S3 > S2 > S1，不同处理在剖面上均出现积盐，S1、S2在40-60 cm出现积盐，说明低灌水量对土壤表层盐分具有淋洗作用，但会造成底层土壤盐分累积；（2）K+、Na+、Ca2+、Mg2+、Cl-、SO42-、HCO3-含量在灌水后有较大幅度的下降，
胡琴 +4 more
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Effects of PBAT on Soil Water and Salt in Maize Root Zone and Maize Yield in Saline-alkali Land [PDF]
[Objective] In order to reduce soil pollution caused by plastic film, the application effect of using PBAT fully biodegradable plastic film instead of ordinary PE plastic film combined with drip irrigation to grow maize in mild secondary salinized soil ...
HOU Jiana +6 more
core +1 more source
Hydroecological effects of mining and its restoration ways in coal mining areas of Western China [PDF]
The mining areas in arid and semi-arid region have become important coal production bases to ensure China’s energy strategic security, however, coal development by large-scale and high-intensity mining has triggered a series of water resources and ...
Guangrong GE +7 more
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Shuitu Baochi Xuebao, 2005 通过室内培养及玉米盆栽土培模拟试验,采用完全随机区组设计,研究了在山西省大同市山阴县西盐池的苏打碱土上,施用DS-1997、脱硫石膏、风化煤对土壤速效磷含量的影响。研究结果表明:(1)3种改良剂均可降低苏打碱土的pH值;(2)脱硫石膏改良苏打碱土的作用最明显地反映于土壤水溶性盐分的急剧上升,同时伴随着土壤中速效磷含量的急剧下降,因此,脱硫石膏抑制土壤中磷的有效化作用;(3)DS-1997与其他两种改良剂相比,可以更好地增强土壤解磷细菌和碱性磷酸酶活性,增强土壤中磷的释放作用。
李晓娜 张强 陈明昌 章衡
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Shuitu Baochi Xuebao, 2019 通过田间调查取样和室内分析，研究了水稻种植（5~30年）对吉林省西部苏打盐碱土的改良和培肥效果。结果表明：与种稻前的荒地土壤相比，种稻后土壤的pH、全盐量、交换性钠、碱化度、CO32-、HCO3-、Cl-、Ca2+、Na ...
苑佰飞 +5 more
doaj
Driving factors analysis of surface soil moisture variation in Zhangjiakou-Chengde district based on geodetector [PDF]
As an important water conservation and sand-windy barrier, Zhangjiakou and Chengde (Zhang-Cheng) district of Hebei Province is very important for ecological protection in the Beijing-Tianjin-Hebei region.
Aifang JIN +4 more
core +1 more source