Results 61 to 70 of about 93 (87)

典型厚层黑土区农地土壤胞外酶季节变化对土壤侵蚀强度的响应

open access: yesShuitu Baochi Xuebao
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  

[Chinese Experts Consensus on Immune Checkpoint Inhibitors 
for Non-small Cell Lung Cancer (2020 Version)]. [PDF]

open access: yesZhongguo Fei Ai Za Zhi, 2021
Zhou C   +24 more
europepmc   +1 more source

东北黑土区不同覆盖作物对土壤酶活性的影响及调控机制探究

open access: yesShuitu Baochi Xuebao
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  

[Expert consensus on the "Four-Level and Dual-Axis" comprehensive diagnostic and therapeutic system for prosthetic rehabilitation of oral diseases]. [PDF]

open access: yesHua Xi Kou Qiang Yi Xue Za Zhi
Expert Group of “Expert Consensus on the ‘Four-Level and Dual-Axis’ Comprehensive Diagnostic and Therapeutic System for Prosthetic Rehabilitation of Oral Diseases”.
europepmc   +1 more source

Research progress on bioactive peptides in the treatment of oral diseases. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban
Huang W, Wang Y, Wang X, Li K.
europepmc   +1 more source

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