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| 1 | Modeling net primary productivity of the terrestrial ecosystem in China from 1961 to 2005显示文摘网络主要生产率(NPP ) 是代表生态系统的结构和函数的最重要的索引。NPP 能被动态全球植被模型(DGVM ) 模仿,它被设计相对环境变化代表植被动力学。这研究在气候,土壤,和地形学上与数据基于 DGVM 综合生物圈模拟器(朱鹭) 模仿了瓷器生态系统的 NPP。在瓷器陆上的生态系统的 NPP 模拟的朱鹭的适用性首先被验证。有另外的相关研究的比较显示范围和模拟的吝啬的价值通常在观察的限制以内;全面模式和全部的年度 NPP 接近与另外的模型一起进行的模拟。模拟基于遥感离 NPP 评价也靠近。确认证明那朱鹭能在瓷器自然生态系统在 NPP 的大规模模拟被利用。我们然后从 1961 ~ 2005 与气候变化数据模仿了 NPP,当温暖是特别地惹人注目的时。下列是模拟的结果。(1 ) 全部的 NPP 在过去的 45 年里从 3.61 GtC/yr 变化了到 4.24 GtC/yr 并且展出了最小的重要线性增加或减少。(2 ) 在增加的地区性的差别或在 NPP 的减少大,但是展出了一个不足道的全面线性趋势。NPP 在大多数部分衰退了东方并且华中,特别在黄土高原。(3 ) 类似于年度 NPP 的变化法律,季节的 NPP 也显示了不足道的增加或减少;趋势线在一般水平以内。(4 ) 在季节的 NPP 变化的地区性的差别大。NPP 在黄土高原在春天,夏天,和秋天衰退了,但是在西藏的高原的大多数部分增加了。 | YUAN Quanzhi WU Shaohong ZHAO Dongsheng DAI Erfu CHEN Li ZHANG Lei | 2014 | Journal of Geographical Sciences2014，24，1： | 27 |
| 2 | NPP vulnerability of the potential vegetation of China to climate change in the past and future显示文摘用综合生物圈模拟器,一个动态植被模型,这研究开始模仿了网过去的 55 年(1961-2015 ) 里并且在未来的瓷器潜在的植被的主要生产率(NPP ) 动力学 35 年(2016-2050 ) 。然后,在平均气候拿潜在的植被的 NPP 作为评估的基础在 1986-2005 期间调节,这研究检验了潜在的植被是否适应气候变化。同时,无适应性的度被评估。最后,潜在的植被的 NPP 危险被综合评估到气候的无适应性的频率和度变化。在过去的 55 年里,在 Tianshan 山的南方的荒芜的生态系统和在中国的北方并且在西方的西藏的高原的草地生态系统的 NPP 对气候变化的效果敏感。大多数森林生态系统的 NPP 不对气候变化的影响敏感。对气候变化的低 NPP 弱点常绿树阔叶、具球果的森林被观察。而且,在在中央、东方的西藏的高原的 Tianshan 山脉和草地生态系统的北方的荒芜的生态系统的 NPP 也有低危险到气候变化。在下一 35 年里,对气候变化的 NPP 弱点将在中央、西方的西藏的高原在 Songliao 平原,在温暖的适度的地区的脱落阔叶的森林,和高山的大草原减少森林大草原。NPP 危险将显著地在 Kunlun 山在 Junggar 盆和高山的沙漠适度的沙漠增加。NPP 危险副热带常绿树阔叶的森林将也增加。有增加的危险的区域的区域将说明 27.5% 中国。 | YUAN Quanzhi WU Shaohong DAI Erfu ZHAO Dongsheng REN Ping ZHANG Xueru | 2017 | Journal of Geographical Sciences2017，27，2： | 21 |
| 3 | Spatio-temporal variation of the wet-dry conditions from 1961 to 2015 in China显示文摘As an important part of the regional environment, the wet-dry climate condition is determined by precipitation and potential evapotranspiration(expressed as ETo). Based on weather station data, this study first calculated ETo by using the FAO56Penman-Monteith model. Then, the dryness index K(ratio of ETo to precipitation) was used to study the spatio-temporal variation of the wet-dry condition in China from 1961 to 2015; moreover, dominant climatic factors of the wet-dry condition change were discussed. The annual precipitation and ETo of the Qinling-Huaihe line were close to a balance(K≈1.0). The annual precipitation in most areas exceeded the ETo in the south of this line and the east of Hengduan Mountains(K<1.0), where the climate is wet.Furthermore, the precipitation in the northwest inland areas of China, where the climate is dry, was markedly lower than ETo(K≥4.0). The overall annual K of China fluctuated around the 55-year mean and its linear trend was not significant. However, a relatively wet period of about 10 yr(1987–1996) was recorded. The overall annual K of China showed strong cyclicality on the time scale of 3, 7–8, 11 and 26–28 yr, and regional differences of the annual K trends and cyclicality were large. The degrees of wetness in the Northwest China and western Qinghai-Tibet Plateau were substantially increased, whereas the degrees of dryness in the Yunnan-Guizhou Plateau, Sichuan Basin, and Loess Plateau were markedly increased. The linear trend of the annual K in most regions of China was not significant, and the annual K of most areas in China showed strong cyclicality on the 8–14 yr time scale.Precipitation was the dominant factor of wet-dry condition change in most areas, especially in North China, where the annual K change was highly correlated with precipitation. | YUAN QuanZhi WU ShaoHong DAI ErFu ZHAO DongSheng ZHANG XueRu REN Ping | 2017 | Science China Earth Sciences2017，60，11： | 6 |
| 4 | Coupled effect of climate change and human activities on the restoration/degradation of the Qinghai-Tibet Plateau grassland显示文摘Climate change(CC)and human activities(HA)are the main reasons for the restoration/degradation of the Qinghai-Tibet Plateau(QTP)grassland.Many related studies have been conducted thus far,but the impact mechanism of CC coupled with HA on QTP remains unclear.We summarized the two main coupling factors in recent years(specifically,in the past five years)and obtained the following conclusions.(1)CC and HA have positive and negative effects on the QTP grassland ecosystem.CC primarily affects grassland ecology through temperature,humidification,and extreme climate,and HA mainly affects ecosystems through primary,secondary,and tertiary industries and restoration measures.(2)CC coupled with HA affects soil,plants,animals,and fungi/microbes.CC makes the snow line rise by increasing the temperature,which expands the zone for HA.CC also restricts HA through hydrological changes,extreme climate,and outbreak of pikas and pests.Simultaneously,measures are implemented through HA to control and adapt to CC.Hence,the grassland ecosystem is comprehensively influenced by CC and HA.(3)The grassland ecosystem dynamically adapts to the disturbance caused by CC and HA by changing its physiological characteristics,distribution range,diet structure,community structure,and physical state.Simultaneously,it responds to environmental changes through desertification,poisonous weeds,rodent outbreak,release of harmful gases,and other means.This work can be used as a reference for the sustainable development of the QTP grassland. | YUAN Qin YUAN Quanzhi REN Ping | 2021 | Journal of Geographical Sciences2021，31，9： | 6 |
| 5 | Multi - scale segmentation approach for object - based land - cover classification using high - resolution imagery显示文摘 | Lei Zhang Kun Jia Xiaosong Li Quanzhi Yuan Xifeng Zhao | 2014 | Remote Sensing Letters2014，5，1： | 1 |
| 6 | The miR167-OsARF12 module regulates rice grain filling and grain size downstream of miR159显示文摘Grain weight and quality are always determined by grain filling.Plant microRNAs have drawn attention as key targets for regulation of grain size and yield.However,the mechanisms that underlie grain size regulation remain largely unclear because of the complex networks that control this trait.Our earlier studies demonstrated that suppressed expression of miR167(STTM/MIM167)substantially increased grain weight.In a field test,the yield increased up to 12.90%-21.94% because of a significantly enhanced grain filling rate.Here,biochemical and genetic analyses revealed the regulatory effects of miR159 on miR167 expression.Further analysis indicated that OsARF12 is the major mediator by which miR167 regulates rice grain filling.Overexpression of OsARF12 produced grain weight and grain filling phenotypes resembling those of STTM/MIM167 plants.Upon in-depth analysis,we found that OsARF12 activates OsCDKF;2 expression by directly binding to the TGTCGG motif in its promoter region.Flow cytometry analysis of young panicles from OsARF12-overexpressing plants and examination of cell number in cdkf;2 mutants verified that OsARF12 positively regulates grain filling and grain size by targeting OsCDKF;2.Moreover,RNA sequencing results suggested that the miR167-OsARF12 module is involved in the cell development process and hormone pathways.OsARF12-overexpressing plants and cdkf;2 mutants exhibited enhanced and reduced sensitivity to exogenous auxin and brassinosteroid(BR)treatment,confirming that targeting of OsCDKF;2 by OsARF12 mediates auxin and BR signaling.Our results reveal that the miR167-OsARF12 module works downstream of miR159 to regulate rice grain filling and grain size via OsCDKF;2 by controlling cell division and mediating auxin and BR signals. | Yafan Zhao Xiaofan Zhang Yuan Cheng Xiangxiang Du Sachin Teotia Chunbo Miao Huwei Sun Guoqiang Fan Guiliang Tang Hongwei Xue Quanzhi Zhao Ting Peng | 2023 | Plant Communications2023，4，5： | 1 |
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