目的研究黑土区农地土壤胞外酶季节变化对土壤侵蚀强度的响应,可加深理解农地土壤侵蚀对土壤生态功能的影响机制,也为土壤资源可持续利用提供科学依据。方法选取位于黑龙江省克山县典型黑土区的坡耕地,基于137Cs示踪土壤侵蚀速率,同时测定自然条件下夏季(2023年6月)及秋季(2023年9月)不同侵蚀强度等级下土壤的养分、土壤微生物量和土壤酶活性,解析东北典型黑土区农地土壤胞外酶季节变化对土壤侵蚀强度的响应。结果1)基于137Cs示踪的农地坡面土壤侵蚀速率变化为479.3~8 041.2 t/(km2·a ...
杨新月 +8 more
doaj
[Developments in Immunotherapy for Advanced Non-small Cell Lung Cancer]. [PDF]
Li H, Wang J.
europepmc +1 more source
目的为探究不同覆盖作物种植下土壤酶活性变化规律及种植体系中生物与非生物因素对土壤酶活性的调控机制。方法以常规玉米耕作为对照(CT),设置单种苜蓿(A)、单种黑麦草(R)及二者混播(AR)3个处理,采集0~10、10~20 cm土样,测定土壤理化性质、微生物磷脂脂肪酸(PLFA)含量及酶活性并进行综合分析。结果与常规玉米耕作相比,单种苜蓿显著降低0~10、10~20 cm可溶性有机碳氮(DOC、DON)、硝态氮(NO3--N)、全磷(TP)和速效磷(AP)含量和0~10 cm AP、10~20 cm ...
吴春育 +8 more
doaj
[Research Progress of Anti-angiogenic Agents Combined with Immunotherapy in Patients with Advanced Non-small Cell Lung Cancer]. [PDF]
Wang J, Peng W, Jiang M, Wu L.
europepmc +1 more source
[Determination of atmospheric intermediate volatility organic compounds with thermal desorption-flow modulator comprehensive two-dimensional gas chromatography- time-of-flight mass spectrometry]. [PDF]
Wang R, Li YJ, Wang JH, Ma CW, Jiang JK.
europepmc +1 more source
Research progress on bioactive peptides in the treatment of oral diseases. [PDF]
Huang W, Wang Y, Wang X, Li K.
europepmc +1 more source
[Serum levels of polycyclic aromatic hydrocarbons and health risk assessment among children and adolescents]. [PDF]
Wang LP +7 more
europepmc +1 more source
[Chinese Experts Consensus on Immune Checkpoint Inhibitors for Non-small Cell Lung Cancer (2019 version)]. [PDF]
Zhou C +15 more
europepmc +1 more source
Efficacy, safety, and treatment burden of treat-and-extend versus alternative anti-VEGF regimens for nAMD: a systematic review and meta-analysis. [PDF]
Rosenberg D +11 more
europepmc +1 more source
Summary of evidence to facilitate the implementation of advance care planning among advanced cancer patients. [PDF]
Tan M, Tang S, Huang C, Xiao J, Ding J.
europepmc +1 more source

