Effects of Native Forest Conversion on Soil Labile Organic Carbon and Enzyme Activity in Northwestern Hunan Province [PDF]
, 2023 [Objective] The response of soil labile organic carbon components and enzyme activities to natural forest conversion was analyzed in order to provide a scientific basis for predicting regional soil health evolution and environmental change.
Li Xue +5 more
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Effects of Elevated Temperature and CO2 Enrichment on Stability of Soil Organic Carbon Storage in Mollisols [PDF]
, 2023 [Objective] The effects of climate change on the stability of organic carbon were revealed from the perspective of the molecular structure of organic carbon in order to provide a theoretical basis for clarifying the impact of future climate change on ...
Feng Qian +6 more
core +1 more source
Nutrient Characteristics and Factors Influencing Surface Soil with Gully Erosion on Sloping Farmland for Low Hilly Terrain in Black Soil Area [PDF]
, 2023 [Objective] The soil nutrient characteristics and influencing factors of surface soil gully erosion for low hilly terrain in the black soil area were studied in order to provide data and theoretical support for the rational use of land resources ...
He Xuyang +7 more
core +1 more source
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
core +1 more source
Shuitu Baochi Xuebao, 2017 为了更好地理解黄土高原植被恢复与生态重建过程对土壤碳循环过程的影响，研究选取位于黄土高原六道沟小流域的典型土壤地形序列（东北坡NE序列，西坡W序列），分析了不同坡向间及同一坡向内随植被类型变化土壤有机碳和无机碳的剖面分布特征及其影响因素。结果表明:六道沟小流域地形序列土壤有机碳含量在0—50 cm土层内随土层深度增加而显著降低，50 cm土层以下基本趋于稳定，且剖面上层（0—50 cm）有机碳含量显著高于剖面下层（50—200 cm，p0.05）。与有机碳相比，无机碳含量相对较高并且主要在剖面下部（50
毛, 邵明安, 黄来明
doaj +1 more source
Long-term straw incorporation significantly reduced subsoil organic carbon stock in cinnamon soil [PDF]
, 2020 peer ...
Xu, Hu +5 more
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Shuitu Baochi Xuebao, 2023 以探讨荒漠草原表层土壤粒径分布分形、不同粒径有机碳含量、碳库管理指数特征及其关系为目的,通过野外调查选取宁夏回族自治区盐池县花马池镇荒漠草原柠条锦鸡儿(Caragana korshinskii)、黑沙蒿(Artemisia ordosica)、短花针茅(Stipa breviflora)、蒙古冰草(Agropyron mongolicum)4种典型植被作为研究对象,采集典型植被冠下和丛间2种生境下表层(0-5 cm)土壤,分析不同植被表层土壤不同粒径有机碳含量、土壤碳库动态变化特征及其相关性。结果表明:(
张义凡, 陈林, 张蚌蚌, 李学斌
doaj
Shuitu Baochi Xuebao, 2020 采用田间定位试验研究了秸秆颗粒（JG）和菌渣颗粒（JZ）改良剂（施用量分别为6，12，18，24 t/hm2）对川西北高寒沙地土壤碳库的影响。结果表明：施用JG和JZ改良剂可显著提高沙化土壤有机碳含量、有机碳储量、活性碳、土壤微生物量碳、微生物熵和碳库管理指数，其中对土壤微生物量碳和微生物熵的提升效果最为显著。与CK相比，施用第2年JG处理土壤有机碳含量、有机碳储量、活性有机碳、碳库管理指数平均增加96.2%，100.0%，157.1%，169.4%，JZ处理平均增加69.2%，66.3%，85.7 ...
孔凡磊 +6 more
doaj
Characteristics of Soil Active Carbon Fractions and Carbon Pool Stability in Major Forest Types in Northern Daxing’an Mountains [PDF]
[Objective] Soil organic carbon is an important component of the carbon cycle in forest ecosystems, and active organic carbon can indicate changes in soil carbon pools.
CAI Tijiu, LIU Beibei
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Shuitu Baochi Xuebao, 2005 采用第二次土壤普查资料,研究了安徽省不同土地类型表层土壤的有机碳密度和碳库的特点。结果表明,安徽省平均有机碳密度为(31.64±16.39)tC/hm2,林地土壤表层有机碳密度高于全省表层土壤平均有机碳密度,旱作土壤表层有机碳密度则低于全省平均值。有机碳密度的大小顺序为:林地>水稻土耕层>旱地。安徽省表层土壤有机碳储量分布也表现为:林地>水稻土>旱地。表层土壤有机碳总量达0.28 Pg,其中林地占50%,水稻土占23%,而旱地只占18%。因此,人为利用特点是区域土壤碳库和碳密度的主要影响因素。分析表明 ...
许信旺 潘根兴 侯鹏程
doaj +2 more sources