Results 71 to 80 of about 2,821 (179)
Shuitu Baochi Xuebao, 2017 分析生物质炭施用对潮土理化性状、酶活性及黄瓜产量的影响，为生物质炭在农业中的推广应用提供一些科学依据，以如皋市农业科学研究所大棚示范区为试验基地，通过田间小区试验，研究了不同生物质炭施用量（0，5，10，20，30，40 t/hm2）条件下土壤理化性状、酶活性及黄瓜产量变化。结果表明：生物质炭施用对土壤理化性状及土壤酶活性有显著的影响。高施用量（40 t/hm2）处理对土壤物理性状的改良效果最好，当生物质炭施用量为30 t/hm2时对土壤养分含量提升效果最好。与对照相比 ...
韩召强 +6 more
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Progress Analysis and Development Prospects of Soil Ecological and Environmental Effects of Interlayer Construction [PDF]
[Objective] This study systematically summarized and analyzed the current application status, technical characteristics, and environmental benefits of interlayer construction in soil improvement, nutrient cycling, ecological restoration, and crop ...
CHEN Jihong +7 more
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铜和镉复合污染对红树林区微生物群落结构和沉积物酶活性的影响 [PDF]
, 2018 采用野外样地研究与室内根箱栽培相结合的方法,对漳江口红树林保护区铜、镉污染生境沉积物微生物结构与土壤酶活性进行研究,旨在探讨其对重金属的响应.微生物磷脂脂肪酸数据表明漳江口红树林湿地3种红树植物秋茄(Kandelia obovata)、白骨壤(Avicennia marina)、桐花树(Aegiceras corniculatum)根际土壤微生物群落的多样性与林外光滩区域比较差异有统计学意义 ...
严重玲 +6 more
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Shuitu Baochi Xuebao, 2007 在山西临汾、襄汾采用大区对比法研究了土壤质地、耕作方式及茬口对小麦播前土壤贮水量的影响。结果表明：夏闲制不同土壤质地的传统土壤耕作方式,小麦播前0-200cm的各主要土壤层面的贮水量为中粘土〉中壤土〉轻壤土;夏季复播制的土壤质地和复播作物对小麦播前贮水量的影响以土壤质地〉复播作物种类;夏闲制不同土壤耕作方式的小麦播前贮水量以浅旋灭茬〉免耕〉隔行深松〉传统耕作〉全耕层深松。不同春播作物茬口小麦播前的贮水量以地黄茬贮水量最高,其次为丹参茬,棉花茬较差 ...
崔欢虎 +5 more
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Shuitu Baochi Xuebao, 2006 以四川盆地西缘中低山坡地为研究样地，根据实际地貌特征分别选取3个典型山体、2个典型土壤类型。山体坡面不同坡位下土壤质量综合指数（PI）研究表明土壤质量指数随山体坡面位置相对海拔高度的降低而增高。不同利用方式下土壤质量综合指数（QI）研究表明，人工林的土壤质量指数值显著偏高，坡耕地的指数值最低。中低山坡地土壤质量的变化特征主要依赖于土地利用与覆盖之间的差异。故必须加强坡耕地规范治理，实施植被保护与重建等一系列土壤资源持续利用措施，实现土壤质量的持续健康发展。
高雪松, 邓良基, 张世熔, 曾敏
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Shuitu Baochi Xuebao, 2022 为探究红薯藤及其生物质炭还田对旱地红壤微生物活性及养分含量的影响, 通过田间定位试验, 设置5个处理: (1)常规处理(CK); (2)3 000 kg/hm2红薯藤还田(S1);(3)6 000 kg/hm2红薯藤还田(S2);(4)1 000 kg/hm2红薯藤生物质炭还田(BC1);(5)2 000 kg/hm2红薯藤生物质炭还田(BC2), 研究不同剂量红薯藤及其生物质炭还田对红壤微生物活性和养分含量的影响。结果表明: 与CK相比, 在0—10 cm土层中, BC1的土壤基础呼吸增加17.93%,
郜茹茹 +6 more
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Distribution Characteristics of Soil Organic Carbon and Its Composition in Suaeda salsa Wetland in the Yellow River Delta [PDF]
, 2013 应用物理分组方法研究了黄河三角洲典型碱蓬湿地土壤有机碳及其组分分布特征.结果表明,研究区土壤重组有机碳是土壤有机碳的主要组成部分,土壤重组有机碳含量、土壤颗粒有机碳含量与土壤总有机碳含量都显著正相关.研究区土壤轻组组分比例和含量范围分别在0.008%～0.15%和0.10～0.40 g·kg-1,颗粒有机碳分配比例范围为8.83%～30.58%,说明黄河三角洲碱蓬湿地土壤有机碳中非保护性组分较低 ...
于君宝, 管博, 董洪芳
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Study on the effect of layered structure of overlying strata on soil damage in mining areas in the loess covered region of northern Shaanxi [PDF]
Ecological protection in coal mining areas is a major problem that needs to be solved urgently for high-quality development in the Yellow River Basin. Scientific understanding of the response law of the overlying strata of the coal seam to the surface ...
Jiangbo WEI +7 more
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Exploration on the Stratification of the Ground Substrate Survey and the Design and Construction of Its Testing Indicator System [PDF]
The ground substrate layer is the main carrier of the material and energy cycle of the earth’s surface. At present, it is essential to have a suitable ground substrate stratification and testing index system for conducting an effective ground substrate ...
Aibing HAO +13 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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