Results 1 to 10 of about 1,739 (198)
Shuitu Baochi Xuebao[目的] 为了阐明不同植被类型的土壤养分状况与固碳能力差异。[方法] [HTSS] 以宁夏南部山区具有代表性的乔木纯林(山杏林和刺槐林)、乔木混交林(刺槐+山杏)、乔灌混交林(山桃+柠条)、灌木林(沙棘)、草地共6种植被类型为研究对象,通过野外调查和室内分析相结合的方式,研究各植被类型0—100 cm土层的生态化学计量特征与碳储量。[结果] 研究区土壤C、N、P变化分别为19.74~35.11,1.74~3.19,1.60~1.69 g/kg,C、N均表现为随土层深度的增加而递减,其中刺槐+山杏林地的C、
丁鑫丽 +4 more
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Shuitu Baochi Xuebao, 2023 为揭示造林20年后不同石漠化恢复模式对土壤结构和理化性质的影响,以滇中地区7种恢复模式下样地土壤为研究对象,研究不同石漠化恢复模式下土壤理化性质分布特征并进行多指标聚类分析。结果表明:除油杉林外,其他样地土壤养分等级均为中高级;土壤颗粒组成较为合理,分形程度较好,抵抗侵蚀的能力较强;不同恢复类型对石漠化土壤的改良存在明显不同,混交林明显优于纯林;由于受土壤母质、地形以及水文等因素的影响,相同恢复类型间存在差异,华山松林和油杉林总体较差;研究区土壤可蚀性因子K值与粉粒含量呈正向变化特征 ...
张叶飞 +3 more
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Shuitu Baochi Xuebao目的为深入了解土壤电阻率与土壤水分的关系，以实现土壤水分非侵入、高分辨率、连续监测的需求。方法以黄土丘陵区典型小流域的草地、玉米地和山地苹果园为研究对象，采用电阻层析成像技术（ERT），结合烘干法实测数据，构建不同土地利用类型下的电阻率-含水率反演模型，并评估其在不同土层和季节下的稳定性与适用性。结果各类型样地土壤电阻率与含水量之间呈幂函数关系，模型均方根误差（RMSE）均低于5%，其中天然草地模型精度最高（R²=0.735，RMSE=1.70%）。2024年7—9月3期ERT数据表明，发生有效降雨后 ...
周书仪 +4 more
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黄土丘陵区典型土地利用类型土壤-微生物量及其生态化学计量特征
Shuitu Baochi Xuebao[目的] 为探讨黄土丘陵区“上退下推”典型生态治理模式对土壤-微生物量C、N、P及其生态化学计量比的影响。[方法] 以宁夏黄土丘陵区典型土地利用类型(人工林地、梯田和川道地)为研究对象,研究土壤-微生物量C、N、P含量对土地利用变化的响应,并分析其生态化学计量比、微生物熵(qMBC、qMBN、qMBP)及化学计量不平衡性(C∶Nimb、C∶Pimb、N∶Pimb)之间的关系。[结果] (1)3种典型土地利用类型下,人工林地土壤SOC、C∶P、N∶P高于梯田和川道地,而农耕用地(梯田和川道地 ...
胡斯乐 +10 more
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Shuitu Baochi Xuebao目的探究河西走廊荒漠盐碱地4种植被类型土壤理化性质和酶活性变化及其影响因素，为荒漠盐碱地土壤养分循环和调控机制提供理论依据。方法以河西走廊荒漠盐碱地土壤为研究对象，选取黑果枸杞（Lycium ruthenicum Murr.）单一群落（HH）、黑果枸杞和芦苇（Phragmites australis）群落（HL）、黑果枸杞和骆驼刺（Alhagi camelorum Fisch.）群落（HT）、黑果枸杞和柽柳（Tamarix chinensis Lour.）群落（HC）4种典型植被类型 ...
马大卫 +5 more
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Regional Runoff Characteristics in Zhengzhou City Based on SCS-CN Model [PDF]
, 2022 [Objective] The causes of waterlogging in Zhengzhou City were studied in order to provide a reference for risk prevention and operation management of rainstorm waterlogging disasters in important parts of the urban infrastructure.
Huang Haiping +5 more
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Comparative Study on Soil Infiltration Characteristics of Different Land Use Types in Horqin Sandy Land [PDF]
, 2022 [Objective] The differences in water infiltration characteristics between different land use types in Horqin sandy land were determined in order to provide a scientific reference for the study of water and material transport in the vadose zone in arid ...
Ala Musa +3 more
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Optimization of SCS-CN Model in a Mountainous Area on West Bank of Dianchi Lake [PDF]
, 2023 [Objective] The mountain flood runoff on the west bank of Dianchi Lake was simulated and calculated in order to provide a scientific basis for constructing flood interception facilities, reducing mountain flood disasters, and protecting the water ...
Li Jinmei, Wang Jinliang, Zhou Jingchun
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Spatial-temporal Variation of Water Yield in Nanbei Panjiang River Basin Based on InVEST Model [PDF]
, 2023 [Objective] The temporal and spatial variation characteristics of water yield and differences in the water yield function for different land use types, soil types, and topography in the Nanbei Panjiang River basin were analyzed in order to provide a ...
Chen Quan +5 more
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Spatial-temporal Variation of Vegetation Coverage and Its Influencing Factors in Binchang Mining Area from 1986 to 2021 [PDF]
, 2023 [Objective] The change characteristics and influencing factors of vegetation coverage and its spatial distribution in the Binchang mining area were analyzed, and the ecological status of the mining area was evaluated in order to provide a scientific ...
Chen Qiuji +3 more
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