Results 111 to 120 of about 884,884 (147)

中国农田生产系统土壤保持功能及其经济价值

Shuitu Baochi Xuebao, 2005
农田生产系统不仅为人类提供了多种多样的农产品,同时,农作物对地表的覆盖以及各种水土保持措施的采用,使农田生产系统也发挥着重要的土壤保持功能。根据计算,我国农田生产系统每年保持土壤的数量为101.9×108t,其中,西南地区、黄土高原区和东北地区的农田土壤保持功能最为突出。采用市场价格法、机会成本法和影子工程法对农田保持土壤的价值进行评估,结果表明:我国农田每年保持土壤养分的价值为4408.50×108元/a,减少耕地废弃价值为164.09×108元/a,减轻淤积的价值为53.74×108元/a ...
doaj  

[Analysis of a study for the global trend burden of MAFLD-associated cirrhosis based on the 2024 update of the Global Burden of Disease Database]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
He N, Zhang FN, Li RX, Wang ZY, Hao S, Zhang XZ, Yang YQ.   +6 more
europepmc   +1 more source

[Paeoniflorin alleviates cancer-related fatigue during chemotherapy for breast cancer by targeting EZH2/CCNE1 to regulate cell cycle and inflammatory microenvironment]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Li Z, Shi H, Chen J, Liang Y, Wu Y, Zuo Q, Chen Q.   +6 more
europepmc   +1 more source

[Development and validation of a risk assessment model for interstitial lung disease in patients with rheumatoid arthritis]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Xu X, Liang D, Ye W, Guo M, Xiao J, Wang R, He D.   +6 more
europepmc   +1 more source

[Effectiveness and cost-effectiveness of risk-based topical fluoride intervention on early childhood caries in Jiangnan District, Nanning City]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Jiang Y, Li Y, Zhang Y, Liu F, Li L, Deng S, Qin Y, Yu J, Qiu R.   +8 more
europepmc   +1 more source

[Myricetin inhibits proliferation and migration of bladder cancer cells by inhibiting HSP90AA1-mediated AKT phosphorylation]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Sun R, Li Y, Zuo L, Tao J, Dong X, Liu H.   +5 more
europepmc   +1 more source

[Application of hybrid attention guided dual-path residual learning in magnetic resonance imaging diagnosis]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhu W, Cai X, Liu Y.
europepmc   +1 more source

[Guangdong consensus on integrated Chinese and Western medicine management of prolonged disorders of consciousness]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Neurocritical Care Committee of Guangdong Provincial Association of Chinese Medicine.
europepmc   +1 more source

[A Review of Archaeological Studies on Dento-maxillofacial Deformities]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Luo G, Deng D, Zhou J, Zhou C.
europepmc   +1 more source

[Key epidemiological data and recommended prevention and control measures for primary liver cancer]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Cao GW.
europepmc   +1 more source