Results 41 to 50 of about 1,269 (156)
Read the free Plain Language Summary for this article on the Journal blog. Abstract Forests store substantial amounts of soil organic carbon (SOC), but SOC stocks differ strongly between forest ecosystems dominated by arbuscular mycorrhizal (AM) or ectomycorrhizal (EcM) fungi.
Mengxu Zhang +10 more
wiley +1 more source
Read the free Plain Language Summary for this article on the Journal blog. Abstract Interactions between plants and soil microorganisms in the rhizosphere are vital for maintaining the nutrient cycle and stability of terrestrial ecosystems. Nitrogen, closely related to carbon (C) cycling and ecosystem productivity, undergoes transformation by soil ...
Ru Wang +9 more
wiley +1 more source
利用开始于1979年的黑土长期定位试验,研究长期不同施肥措施下土壤有机碳含量演变特征、固碳效应及外源碳输入对土壤固碳的贡献。结果表明:长期单施化肥土壤有机碳含量较试验前下降了11.6%~16.1%,有机肥与化肥配施土壤有机碳含量呈上升趋势,常量有机肥化肥配施(MNP、MNPK)土壤有机碳含量分别上升了6.5%和8.4%,二倍量有机肥化肥配施(M2N2、M2N2P2)土壤有机碳含量分别上升了7.7%和11.6%。不施肥和施化肥土壤有机碳储量呈现亏缺,亏缺量在3.5~6.1 t/hm2 ...
郝小雨 +3 more
doaj
为了探明西南地区长期不同施肥处理对稻麦轮作紫色土有机碳组分和碳循环相关水解酶活性的影响,依托重庆北碚29年稻麦轮作紫色土长期定位试验,选取不施肥(CK)、单施氮磷钾肥(NPK)、有机无机配施(NPKM)、秸秆还田配施含氯化肥[(NPK)ClS]和秸秆还田配施无机肥(NPKS)5个处理,测定土壤各组分有机碳含量及与土壤碳循环相关的水解酶活性并分析两者间的相关性。结果表明:长期施肥(NPK、NPKM和NPKS)显著提高土壤总有机碳和不同组分有机碳含量,各施肥处理土壤总有机碳含量较CK提升11.6%~40.2%
徐文静 +7 more
doaj
A Study on Carbon Fixation Capacity and Its Influencing Factors Based on InVEST Model at Wuhu City [PDF]
[Objective] The spatial and temporal distribution pattern of carbon storage at Wuhu City, Anhui Province from 2011 to 2021 were analyzed, and the influence of ecological environmental factors, topographic factors, meteorological factors, and land use ...
Chu Yunzhi +9 more
core +1 more source
Plant nutrient‐acquisition strategies contribute to species replacement during primary succession
Pioneer species Hippophae acquires phosphorus and nitrogen mainly by ‘mining’ and N2‐fixing strategies and thus dominates in the beginning of primary succession. As soil nutrient availability increases with the mobilization of apatite‐P and input of N‐rich plant residues, Hippophae' strategies become less efficient than Populus's scavenging strategies.
Xiao‐Long Li +12 more
wiley +1 more source
为探明坡耕地土壤有机碳空间分布特征,对紫色土丘陵区坡耕地不同部位土壤有机碳及活性有机碳顺坡和深度分布进行分析。结果表明,坡耕地上坡土层深度仅为22.3 cm,中坡和下坡土层深度约为上坡的2.01倍和3.30倍;与上坡比较,中坡和下坡土壤容重下降了0.2和0.04,土壤孔隙度增加了19.82%与3.83%。沿坡从上向下土壤有机碳及活性有机碳储量显著增加,下坡土壤有机碳及活性有机碳储量比上坡和中坡分别增加了674.74%,104.09%和958.51%,267.75 ...
樊红柱, 张泽洪, 郭, 蒋
doaj
植被恢复是影响土壤有机碳库动态变化的关键过程之一,阐明植被恢复过程中土壤有机碳的固持动态及其驱动机制,是全球变化下碳循环研究的热点和前沿问题。本文综述了近年来国内外关于植被恢复过程中土壤有机碳固定动态及其驱动机制方面的研究,剖析植被恢复中土壤有机碳固持动态及其影响因素,探讨植物碳输入对土壤有机碳动态变化的影响机制,揭示植被恢复中土壤有机碳固定的物理、化学和微生物驱动机制,并对目前研究中存在的问题进行总结,进而提出关于植被恢复的土壤固碳效应研究,亟需在土壤有机碳组分的动态、微生物结构和功能,以及植物—土壤—
邓蕾 +3 more
doaj
Distribution Characteristics of Soil Organic Carbon and Its Composition in Suaeda salsa Wetland in the Yellow River Delta [PDF]
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
core
Optimization of Extraction Method for Easily Extractable Glomalin-Related Soil Protein from Calcareous Soil [PDF]
Glomalin-related soil protein (GRSP) secreted by arbuscular mycorrhizal fungi is widely distributed worldwide, has stable properties and is not easily decomposed, which is an important component of soil organic matter.
Chun TU +5 more
core +1 more source

