| response of ch4 emission of paddy fields to land management practices at a microcosmic cultivation scale in china. | the terrestrial ecosystem may be either a source or a sink of ch4 in rice paddies, depending, to a great extent, on the change of ecosystem types and land use patterns. ch4 emission fluxes from paddy fields under 4 cultivation patterns (conventional plain culture of rice (t1), no-tillage and ridge culture of rice (t2), no-tillage and ridge culture of rice and wheat (t3), and rice-wheat rotation (t4)) were measured with the closed chamber technique in 1996 and 1998 in chongqing, china. the result ... | 2005 | 16158607 |
| [surveillance on contamination of total aflatoxins in corn, peanut, rice, walnut and pine nut in several areas in china]. | to realize the contamination of total aflatoxins in corn, peanut, rice, walnut and pine nut in china, and provide the base data for establishing a china tolerance limit standard and an international control practice for total aflatoxins. | 2006 | 16620597 |
| contamination of aflatoxins in different kinds of foods in china. | to study the contamination of total aflatoxins (afs) in different kinds of foods including corn, peanut, rice, walnut, and pine nut in six provinces and two municipalities in china. | 2007 | 18348407 |
| assessing current and future ozone-induced yield reductions for rice and winter wheat in chongqing and the yangtze river delta of china. | dose-response functions from china were employed to assess ozone (o3)-induced relative yield loss (ryl) for rice and winter wheat in chongqing and the yangtze river delta (yrd) in 1990-2020, based on monitored and simulated o3 exposures. it shows that ryl for rice in chongqing from 1990 to 1995 was 1.1-5.8% and would reach 10.8% in 2020, while for winter wheat it was estimated to be 0.2-9.8% in 1990 and would reach around 12.0% in 2020. in the yrd, ryl for rice was 2.5-6.6% from 1990 to 1999 and ... | 2009 | 18995940 |
| temporal changes in climatic variables and their impact on crop yields in southwestern china. | knowledge of variability in climatic variables changes and its impact on crop yields is important for farmers and policy makers, especially in southwestern china where rainfed agriculture is dominant. in the current study, six climatic parameters (mean temperature, rainfall, relative humidity, sunshine hours, temperature difference, and rainy days) and aggregated yields of three main crops (rice: oryza sativa l., oilseed rape: brassica napus l., and tobacco: nicotiana tabacum l.) during 1985-201 ... | 2014 | 23736776 |