Results 91 to 100 of about 738,780 (172)

臭氧胁迫下叶片与细根凋落物分解的生态化学计量特征差异

Chinese Journal of Plant Ecology
Xiaofan Hou, Chenhan Ma, Yuqian Sun, Yu-Han Gao, Pin Li   +4 more
semanticscholar   +1 more source

陕北黄土丘陵区沙棘林凋落及其动态研究初报

, 1994
对沙棘林凋落过程研究结果表明,5年生沙棘林枯枝落叶现存蓄积量为3.18t/hm~2,年凋落量2.61t/hm~2,凋落主要发生在10～11月,以叶为主,年分解量1.43t/hm~2。在目前的年龄和结构状态卞,沙棘林枯枝落叶蓄积量年增约1.18t/hm ...
汪有科, 赵鸿雁, 吴钦孝, 韩冰, 刘向东   +4 more
core  

[Cephaeline attenuates malignant biological behaviors of colorectal cancer by regulating the Ras signaling pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Han L, Li B, Wang B, Zhang Z, Zhang J.
europepmc   +1 more source

[<i>Xiaohe</i> Granule improves breast hyperplasia in rats by promoting mammary epithelial cell apoptosis <i>via</i> activating the ASK1/MKK4/JNK signaling pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhang Y, Sun K, Liu J, Wang S, Pei J.
europepmc   +1 more source

[Mesothelial impairment induced by peritoneal dialysis and its potential protective strategies]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Ban Y, Mei Y, Chen B, Tang W, Kang H.
europepmc   +1 more source

[Quercetin inhibits proliferation and migration and promotes apoptosis of gastric cancer cells by promoting phosphorylation-mediated YAP inactivation]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Wang Y, Wang W, Cheng S, Feng Y, Zhang Z, Shi Q, Li Y, Hu Q, Wu M.   +8 more
europepmc   +1 more source

[Protective effects and underlying mechanisms of bone marrow mesenchymal stem cells-derived apoptotic extracellular vesicles in acute kidney injury]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Lin Z, Chen J, Lin T, Liu S, Liu J.
europepmc   +1 more source

中国天然林凋落物量的空间分布及其影响因子分析

, 2016
森林凋落物是森林生态系统物质循环和能量流动中的重要结构和功能单元,具有不可替代的生态学作用,我国在森林凋落物方面已经开展了大量研究工作,但全国大尺度范围内森林凋落物的综合性研究还很少见报道.本研究收集整理了1970~2014年发表的308组中国天然林年凋落物量数据,观测地点分布范围为北纬18°15′~51°30′,东经82°53′~129°06′,海拔0~3828 m,涵盖了中国主要森林类型.研究表明,从寒温带、温带、亚热带到热带,中国天然林年凋落物量呈逐渐增加趋势,平均值分别为2.45,3.56,6 ...
刘永志, 蒋延玲, 周广胜, 贾丙瑞   +3 more
core  

[Isovanillic acid alleviates dextran sulfate sodium-induced ulcerative colitis in mice by improving mitochondrial function <i>via</i> activating the PPARγ pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Qiao T, Zhang L, Zhang Y, Huang J, Li Q, Geng Z, Hu J, Li J.   +7 more
europepmc   +1 more source

北京东灵山地区常见灌丛生长及凋落物生产对氮添加的响应

, 2017
我国北方灌丛土壤瘠薄,近几十年来的氮沉降显著提高了北方灌丛土壤的可利用氮水平。灌木生长是灌丛碳吸存的重要组成部分,凋落物在土壤和植物间充当着至关重要的纽带作用,是陆地生态系统养分与能量循环的关键,灌丛生长和凋落物生产受氮添加的影响很大。然而,大气氮沉降对灌丛碳吸存和凋落物生产的影响人们知之甚少。该研究以荆条(Vitex negundo var.heterophylla)和绣线菊(Spiraea salicifolia)灌丛为例,通过0(N0)、20(N1)、50(N2)、100(N3)kg N·hm~(–
方精云, 张建华, 沈海花, 唐志尧   +3 more
core