Progressive and active adaptations of cropping system to climate change in Northeast China

Chen, Chang; Qian, Chunrong; Deng, Aixing; Zhang, Weijian

doi:10.1016/j.eja.2011.07.003

Cited by 111 publications

(73 citation statements)

References 29 publications

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“…3B). The principle crops in the region uncovered include cereals such as corn, rice, and spring wheat in a region known to be the main grain area of China (26) [Fig. 1, with brown dots in denoting at least 50% total coverage by crops according to the land cover type yearly climate modeling grid (CMG) datasets with 0.05°resolution from the NASA Land Processes Distributed Active Archive Center (LP DAAC).].…”

Section: Discussionmentioning

confidence: 99%

Tropospheric winds from northeastern China carry the etiologic agent of Kawasaki disease from its source to Japan

Rodó

Curcoll

Robinson

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

183

155

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Evidence indicates that the densely cultivated region of northeastern China acts as a source for the wind-borne agent of Kawasaki disease (KD). KD is an acute, coronary artery vasculitis of young children, and still a medical mystery after more than 40 y. We used residence times from simulations with the flexible particle dispersion model to pinpoint the source region for KD. Simulations were generated from locations spanning Japan from days with either high or low KD incidence. The postepidemic interval and the extreme epidemics (1979, 1982, and 1986) pointed to the same source region. Results suggest a very short incubation period (<24 h) from exposure, thus making an infectious agent unlikely. Sampling campaigns over Japan during the KD season detected major differences in the microbiota of the tropospheric aerosols compared with ground aerosols, with the unexpected finding of the Candida species as the dominant fungus from aloft samples (54% of all fungal strains). These results, consistent with the Candida animal model for KD, provide support for the concept and feasibility of a windborne pathogen. A fungal toxin could be pursued as a possible etiologic agent of KD, consistent with an agricultural source, a short incubation time and synchronized outbreaks. Our study suggests that the causative agent of KD is a preformed toxin or environmental agent rather than an organism requiring replication. We propose a new paradigm whereby an idiosyncratic immune response, influenced by host genetics triggered by an environmental exposure carried on winds, results in the clinical syndrome known as acute KD.northeastern China source | agriculture | heart disease | FLEXPART | cereal croplands

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Section: Discussionmentioning

confidence: 99%

Tropospheric winds from northeastern China carry the etiologic agent of Kawasaki disease from its source to Japan

Rodó

Curcoll

Robinson

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

183

155

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“…Climate change can substantially induce the variation of regional hydrological cycle and environment, affect cropping systems, crop productivity and land use, subsequently causing considerable variability of cropland pattern (Newman et al, 2014;Chen et al, 2012;Piao et al, 2010;Dong et al, 2009). The cropland in Northern China, which is limited by heat, had benefited from the climate warming.…”

Section: Climate Changementioning

confidence: 99%

Progress on quantitative assessment of the impacts of climate change and human activities on cropland change

2016

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Abstract:It is important to study the contributions of climate change and human activities to cropland changes in the fields of both climate change and land use change. Relationships between cropland changes and driving forces were qualitatively studied in most of the previous researches. However, the quantitative assessments of the contributions of climate change and human activities to cropland changes are needed to be explored for a better understanding of the dynamics of land use changes. We systematically reviewed the methods of identifying the contributions of climate change and human activities to cropland changes at quantitative aspects, including model analysis, mathematical statistical method, framework analysis, index assessment and difference comparison. Progress of the previous researches on quantitative evaluation of the contributions was introduced. Then we discussed four defects in the assessment of the contributions of climate change and human activities. For example, the methods were lack of comprehensiveness, and the data need to be more accurate and abundant. In addition, the scale was single and the explanations were biased. Moreover, we concluded a clue about quantitative approach to assess the contributions from synthetically aspect to specific driving forces. Finally, the solutions of the future researches on data, scale and explanation were proposed.

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“…Because of the rapid expansion in rice area, the rice yield also benefited from this process [17]. In NEC, climate warming has been found as a contributor to the rapid expansion in rice area [41,42].…”

Section: Discussionmentioning

confidence: 99%

“…This climate, combined with good soil quality, makes NEC the main single rice-producing area in the country. The rice-growing season in the area begins in mid-April and ends in early October [17]. …”

Section: Site Descriptionmentioning

confidence: 99%

“…The region has also experienced the world's most significant climate warming, and rice planting in the area has expanded very rapidly over the past three decades [16] with an increase from 8.49ˆ10 5 ha in 1980 to 4.51ˆ10 6 ha in 2014. NEC has undoubtedly played a vital role in securing food production in China, and it is a region very suitable to investigate the climate-rice yield relationship [17]. Despite the preponderance of studies concerning climate trends and rice yield at multiple scales, research is still needed to assess the geographical effects on the climate-rice yield relationship and the impacts of climate at high latitudes.…”

Section: Introductionmentioning

confidence: 99%

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Geographical Variation of Climate Change Impact on Rice Yield in the Rice-Cropping Areas of Northeast China during 1980–2008

Liu

Yang

2016

Sustainability

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Northeast China (NEC) is one of China's major rice production areas and has experienced obvious climate warming over the past three decades, similar to other mid-to high-latitude regions in the Northern Hemisphere. The present study investigates the temporal and spatial impacts of climate warming on rice yield in mid-high latitude regions. In this study, two time series datasets of rice yield and climate records in the NEC, including 178 county sites and 105 climate stations and covering the period from 1980 to 2008, were compiled. From these data, the responses of rice yield to the rice-growing season temperature (GST), growing degree days (GDD), and precipitation (GSP) were estimated using a regression model. The results indicate that rice yield benefits from climate warming in the NEC. GST positively impacted rice yield in 64.6% of the counties, with an increase of approximately 3.65%; GDD positively impacted yield in 64% of the counties, an increase of approximately 3.2%; and GSP negatively impacted rice yield in 68% of the counties, with a decrease of approximately´2.3%. Spatial variation was observed in the climate-rice yield relationships. The statistical relationships of GST and GDD with rice yield were significantly and positively correlated with latitude, longitude, and altitude, while that of GSP and rice yield was significantly and negatively correlated with latitude and longitude and showed a nonsignificant positive correlation with altitude. In summary, climate warming has significantly increased rice yield over the last three decades in the region north of 42˝N, east of 122.4˝E, and at an elevation of 134-473 m, which covers the majority of the rice-growing areas in the NEC.

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Progressive and active adaptations of cropping system to climate change in Northeast China

Cited by 111 publications

References 29 publications

Tropospheric winds from northeastern China carry the etiologic agent of Kawasaki disease from its source to Japan

Tropospheric winds from northeastern China carry the etiologic agent of Kawasaki disease from its source to Japan

Progress on quantitative assessment of the impacts of climate change and human activities on cropland change

Geographical Variation of Climate Change Impact on Rice Yield in the Rice-Cropping Areas of Northeast China during 1980–2008

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