Dynamics of nutrient and energy for fine roots of Casuarina equisetifolia plantations on coastal sandy soil [PDF]
, 2007 2005年1月到2005年11月对福建省惠安县赤湖林场不同林龄木麻黄人工林细根养分和能量的季节动态进行了观测,结果表明:(1)6种元素的含量在不同林龄木麻黄细根中都具有明显的季节变化。各林龄细根的N含量一般在冬夏季节较高,且死细根的N浓度高于相同林龄的活细根,除12林龄活细根P浓度在7月份有最大值外,其他各林龄活、死细根在一年中呈波动性下降,K含量在冬季较高,而在其他季节变化幅度不大,除5林龄活细根和18林龄死细根在3月份和7月份有两个峰值外,其他林龄细根Ca含量随季节变化较小 ...
侯杰 +5 more
core
Distribution Characteristics and Coupling Relationship Between Soil Erosion and Hydrologic and Sediment Connectivity in Changchong River Basin [PDF]
[Objective] To clarify the distribution characteristics and coupling relationship between soil erosion and hydrologic and sediment connectivity in Changchong River Basin, and to provide basis for soil erosion control and soil erosion prevention in this ...
LI Jianing +4 more
core +1 more source
[National expert consensus on clinical diagnosis and treatment of hot crush injury wound (2023 version)]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2023 Burns and Trauma Branch of Chinese Geriatrics Society +2 more
europepmc +1 more source
[Curcumin alleviates the manganese-induced neurotoxicity by promoting autophagy in rat models of manganism]. [PDF]
Beijing Da Xue Xue Bao Yi Xue Ban, 2022 Lai LY +6 more
europepmc +1 more source
Shuitu Baochi Xuebao, 2019 为了解黄浦江流域中游典型人工纯林枯落物和土壤的水源涵养能力，提高流域内水源涵养林建设保护与经营管理水平，选择黄浦江中游东岸的浦江郊野公园内的5种典型人工纯林（香樟林、桂花林、栾树林、无患子林和池杉林）作为研究对象，采用环刀法、烘干法与室内浸泡法对林分地表枯落物和土壤的水源涵养能力进行研究，并结合枯落物有效拦蓄量和土壤有效蓄水量来定量比较5种林分枯落物层和土壤层的水源涵养能力。结果表明：（1）5种林分枯落物有效拦蓄量为7.74~27.90 t/hm2，表现为池杉林 > 无患子林 > 桂花林 > 栾树林 >
李阳, 万福绪
doaj
Shuitu Baochi Xuebao, 2020 选择山杨栎类次生林（以下简称次生林）、刺槐林、侧柏林、油松林为研究对象，通过样地调查，结合室内浸泡方法，对比分析枯落物（未分解层、半分解层）的水文特征指标，研究典型林分枯落物层水文生态特性。结果表明：（1）枯落物厚度为3.93~4.95 cm，刺槐林最大，油松林最小；蓄积量为次生林最大（19.28 t/hm2），侧柏林（18.03 t/hm2）和刺槐林（17.57 t/hm2）次之，油松林最小（14.73 t/hm2），未分解层蓄积量小于半分解层。（2）枯落物最大持水量（率）为30.92~61.31 t/
马晓至 +6 more
doaj
[Progress in preparation of plant biomass-derived biochar and application in pesticide residues field]. [PDF]
Se Pu, 2022 Zhang X, Zhen D, Liu F, Peng Q, Wang Z.
europepmc +1 more source
ENERGY FOR MIXED FOREST OF CUNNINGHAMIA LANCEOLATA AND TSOONGIODENDRON ODORUM [PDF]
, 2001 对杉木观光木混交林群落能量的研究结果表明 :混交林中观光木地上部分灰分含量以皮最高 ,而杉木则以叶最高 ,两者GCV(干重热值 )和AFCV(去灰分热值 )均以叶为最高 ;观光木、杉木地下各部分的灰分含量均随径级的减小而增加 ,GCV均以粗根最高 ,细根最低 ;观光木的平均灰分含量高于杉木 ,但GCV和AFCV均低于杉木 ;从乔木层、灌木层到草本层 ,灰分含量依次增加 ,GCV和AFCV则依次降低 .混交林群落的能量现存量、年净增量、归还量和净固定量分别是纯林的 1.2 6倍、1.15倍、1.0 2倍和
杨玉盛 +4 more
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Screening, Expression and Analysis of Enzymatic Properties of a Cold-active Lipase-producing Strain [PDF]
High-yield strains of cold-active lipase are screened to provide production information for the industrial development of lipase. A cold-active lipase-producing strain was isolated from Xing'an larch forest soil in Mohe County using the Rhodamine B plate
Chenchen QI +6 more
core +1 more source
[Antibacterial mechanism of Brevinin-2GHk, an antimicrobial peptide from Fejervarya limnocharis skin]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2021 Xiong W +5 more
europepmc +1 more source