Soil Salinization Characteristics of Different Land Use Types in a Typical Oasis Irrigation Area of Lower Tarim River [PDF]
, 2023 [Objective] The soil salinization characteristics under different land use types in extremely arid regions were analyzed in order to provide support for the sustainable efficient utilization of regional land resources.
Baiyun Gang +6 more
core +1 more source
Characteristics and Response of Soil-leaf Ecological Stoichiometry of Suaeda Microphylla and Apocynum Pictum Under Different Salt Habitats [PDF]
, 2023 [Objective] The change trend and main limiting factors of the ecological stoichiometric characteristics of soil and leaves in different saline habitats were analyzed in order to provide basic research data for the study of nutrient limiting factors and ...
Bahebe Lede +5 more
core +1 more source
Effects of Desert Land Cultivation on Soil Aggregate Stability and Carbon Fixation [PDF]
, 2023 [Objective] The response of soil aggregate stability and organic carbon before and after land reclamation using different land use types were analyzed in order to provide a scientific theoretical basis for wasteland reclamation, vegetation restoration ...
Chen Xue +4 more
core +1 more source
Effects of Winter Irrigation on Soil Water-heat-salt Migration and Crop Growth During Freezing-Thawing Period in Qingtongxia Irrigation District of Ningxia [PDF]
, 2023 [Objective] The effects of winter irrigation on soil water-heat-salt migration and crop growth during the freezing-thawing period were analyzed in order to provide a scientific basis for controlling soil salinization, and to ensure food security ...
Han Yuping +4 more
core +1 more source
Comparison of fertilizer-effect models on winter wheat response to nitrogen and phosphorus fertilizers in saline soils in the Yellow River Delta [PDF]
, 2017 通过大田试验, 研究了黄河三角洲盐碱土地区冬小麦合适的肥料效应模型。在冬小麦生长季设置4种不同的氮磷肥用量, 根据“3414”试验设计8 种不同的肥效试验处理, 以探讨线性加平台、一元二次、平方根和二元二次4 种不同模型的拟合效果。结果显示, 4 种肥料效应模型的拟合结果经检验都达到极显著水平 (P<0.01)。在一元肥料效应模型中, 氮磷一元二次模型拟合效果最好, 最高收益分别为7 448.3 元·hm-2 和7 357.7 元·hm-2 ...
付希强 +8 more
core +1 more source
Shuitu Baochi Xuebao, 2022 为分析不同梯度盐渍土土壤的物理性质与水动力学性质变异状况,在江苏沿海连云港市徐圩新区开展了试验研究。对5种不同盐渍化级别土壤进行取样,测定其pH、ECe、容重、总孔隙度、含水率和饱和导水率等,分析不同级别滨海盐渍土壤物化特性参数和水动力学性质变化规律。结果表明:(1)不同级别盐渍土0—50 cm剖面土壤ECe先变小后增大,但40—50 cm剖面ECe明显大于0—10 cm剖面。非盐渍土和极重度盐渍土0—50 cm剖面土壤ECe变化较小,轻度盐渍土、中度盐渍土、重度盐渍土的0—50 ...
祝瑜 +6 more
doaj
Mobilization Mechanisms of High Fluorine and Iodine Groundwater in the Northwest Shandong Plain [PDF]
, 2023 BACKGROUNDGroundwater is the main water source in the Northwest Shandong Plain Province. It is necessary to find out the causes and connections of high fluorine and high iodine groundwater, which can provide reference for local drinking water safety and ...
Guangwei WU +5 more
core +1 more source
Shuitu Baochi Xuebao, 2023 为明晰土壤盐渍化多维空间分布特征、水盐耦合关系,以环渤海平原的山东部分为研究区,通过野外实测和室内分析获取数据,基于经典统计方法对土壤水盐特征进行描述性统计分析;利用GIS软件分析土壤含盐量、含水量的二维空间分布,GMS软件可视化分析土壤盐渍化三维空间分异特征;构建土壤水盐耦合协调模型,定量分析不同因素对水盐耦合协调度的影响程度。结果表明:(1)研究区土壤含盐量中位数为2.08 g/kg,以中度盐渍土为主,土壤含盐量整体呈自上而下逐渐增大趋势,表层土壤含水量均值为15.38%,全区域较缺水;(2 ...
宋颖, 高明秀, 徐帻欣, 赵景辉
doaj
黄河三角洲盐渍化荒地种植植物对土壤改良、磷形态转化及有效性的影响
Shuitu Baochi Xuebao, 2021 为了明确种植不同植物对黄河三角洲盐渍化荒地改良效果、土壤磷形态转化及增效调控机制，研究了在生长芦苇的盐渍化荒地改变种植植物（柽柳、白蜡、苜蓿）的改良措施对土壤磷形态转化及有效含量的影响。结果表明：与荒地芦苇相比，3种植物种植均能显著提高0—20 cm土壤磷酸酶活性，柽柳种植显著降低0—20 cm土壤pH，促进0—20 cm土壤大颗粒团聚体形成，提高0—40 cm土壤有机碳含量，显著增加0—100 cm土壤盐渍化程度，促使土壤速效磷（Ca2—P）和缓效磷（Ca8—P和Al—P）向难溶性磷（Ca10—P ...
刘盛林 +5 more
doaj
Shuitu Baochi Xuebao, 2000 土壤盐渍化是一个世界性的环境问题，它的发生与发展与许多因素有关。以松嫩平原西部为例，应用灰色关联分析及径向基函数网络等方法，分析了各影响因子对土壤盐渍化的敏感程度，并通过土壤积盐动态预报模型的建立，为土壤盐渍化预测及防治工作提供了依据。
罗先香 邓伟
doaj +2 more sources