Suitable amount of N topdressing based on leaf age index of maize using mulched drip irrigation technology in Western Songnen Plain Spatial characteristics of soil organic carbon and nitrogen storages in Songnen Plain maize belt. Carbon storage of poplar-crop ecosystem in Eastern Henan Plain. Physiological response to salt-alkali stress in experimental populations in two ecotypes of Leymus chinensis in the Songnen Plains of China Vertical distribution character of nutrient elements in peat of Sanjiang Plain Effects of elevated atmospheric CO2 concentration and nitrogen addition on the growth of Calamagrostis angustifolia in Sanjiang Plain freshwater marsh. A Study on Floristic Geographic of Seed Plant in the Flood Plain of Mid-Yellow River The Changing Pattern of Fuel Moisture Content of Four Herbaceous Plants while Drying Wetland landscape ecological security patterns analysis and plan in Northeast of Sanjiang Plain Nitrogen flow in food chain among regions based on MFA and model: a case of Huang-Huai-Hai Plain Use of integrated climatic index to determine high temperature damage to summer maize at florescence in the Huaibei Plain Using remote sensing to analyze spatiotemporal variations in crop planting in the North China Plain Characteristics of soil organic carbon at 38°N ecological transect of Hebei Province Agricultural landscape and its elements assessment in plain areas of Beijing City Effect of arable land fragmentation on farmland-forest network at village level in typical agricultural regions of North China Plain-A case of Quzhou County, Hebei Province Sensitivity of response of winter wheat to climate change in the North China Plain in the last three decades Remote sensing inversion of soil moisture in Hebei Plain based on ATI and TVDI models Comparison of different straw cycling modes in farmland ecosystems in Chengdu Plain based on emergy theory Evaluation of ecological footprint of straw resources utilization based on emergy theory: A case study of typical rice-wheat rotation region in Chengdu Plain Estimation of regional evapotranspiration over the Hufu Plain using STME and MODIS data Modeling crop evapotranspiration using remotely sensed vegetation data: A case study of winter wheat in the North China Plain Comprehensive analysis of emissions and global warming effects of greenhouse gases in winter-wheat fields in the high-yield agro-region of North China Plain Cause and mechanism of winter wheat yield reduction under straw mulch in the North China Plain Evaluation of rural residential land consolidation potential using entropy weight extension model-A case study of Taihang Mountain piedmont plain in Hebei Province Effects of straw incorporation and N fertilization on soil respiration during maize (Zea mays L.) growth in Huanghuaihai Plain Energy flow analysis of straw-return agricultural modes in theCentral Shaanxi Plain Impact of climate change in 1981-2009 on winter wheatphenology in the North China Plain Assessment on heavy metal pollution status in paddy soils in the northern Chengdu Plain and their potential ecological risk An investigation of the safety threshold of a floodplain wetland:a case study of the Er-Ka Nature Reserve, China Ecological health assessment of groundwater in the lower Liaohe River Plain using an ArcView-WOE technique Spatial and temporal variations of total nitrogen density in agricultural soils of the Songnen Plain Maize Belt Characteristics of Growth and Development of Winter Wheat under Zero-tillage in North China Plain Analysis of environmental endurance of winter wheat/summer maize rotation system to nitrogen in North China Plain The relationship between grain output and fertilizer input in wheat-corn cropping area of the Huang-Huai-Hai plain Preliminary Report on Cultivation Technique of Ural Licorice (Glycyrrhiza uralensis) in Plain Huanghuaihai Semiarid Zone Much Improved Irrigation Use Efficiency in an Intensive Wheat-Maize Double Cropping System in the North China Plain CO2-release rate of soil respiration and litter decomposition of meadow marshes in Sanjiang Plain Impact of climate change on winter wheat production in the Hebei Plain Changes in per-hectare yield of wheat and related factors in Shajiang black soil region of the Huaibei Plain Research on strategic agricultural division and layout of the Huang-huai-hai Plain Spatial variability of soil organic carbon sequestration rate and its influencing factors in Fengqiu County, Henan, China. Variation in species composition and diversity of wetland communities under different disturbance intensity in the Sanjiang Plain Effects of ecological factors on plant communities of Ziwuling Mountain, Shaanxi Province Effects of ditch network structure on landscape pattern in the Sanjiang Plain, Northeast China Influence of litter importation on basal respiration and labile carbon in restored farmland in Sanjiang Plain Application of coated urea in summer maize in North China Plain Species Diversity and Spatial Heterogeneity of Plant Communities in Piedmont Plain of South Slope of Tianshan Mountains Influence of Plants on CO2 and CH4 Emission in Wetland Ecosystem Estimation and Analysis of Ecological Efficiency in the Plain Area Study on NPK Fertilizer and Nutrients Utilizing Efficiency under Sudangrass and Ryegrass Rotation Regime in Jianghan Plains Analysis of the Plasticity of Growth and Density-Dependent Regulation of Hordeum Brevisubulatum Population of the Songnen Plan The biodiversity conservation value of wetland ecosystem in the Sanjiang Plain Plant species diversity of non-agricultural habitats in the lower reaches of the Yellow River plain ANALYSIS ON THE FLUX OF SOIL SEED BANK AND THE SEEDLING MORTALITY IN THE COMMUNITIES OF TWO SPECIES OF SU AEDA IN THE SONGNEN PLAIN IN CHINA Estimation of ecological water demands based on ecological water table limitations in the lower reaches of the Liaohe River Plain, China Effects of human disturbance on species diversity and niche of herbaceous plants along Qiyijiang riparian zone in Ya‘an City, Sichuan Province A Study of Hierarchical Classification for the Steppe Vegetation on the Song-Nen Plain The Models on Density Dependence to Natural Suaeda heteroptera Population of Alkalization Meadow in the Songnen Plain of China Comparative Analysis of Seed Banks in saline-alkali Communities in the Song-Nen Plain of China On the Relation between Vegetation and Environment in Southern Song Nen Plain Climatic potential productivity of winter wheat and summer maize in Huanghuaihai Plain in 2011-2050. Salinization-alkalization of Leymus chinensis grassland in Songnen Plain of Northeast China. The Biogeochemical cycle of sulfur in Calamagrostis angustifolia wetland ecosystem in the sanjiang Plain

Seasonal changes of soil phosphorus fractions under Calamagrostis angustifolia wetlands in Sanjiang Plain, China Characters of forage resources and the development of pastoral industry in the farming-pastoral zone of the Songnen Plain Interaction of UV-B and NaCl on DNA damage of mung bean DIVERSITY OF SEED PLANT AND THE CONSERVATION STRATEGIES IN FLOOD PLAIN GRASSLAND OF FEN RIVER STUDIES ON THE FLORA OF THE SEED PLANTS FROM THE FLORA SUBREGION OF NE. CHINA PLAIN A preliminary study on the distribution characters of plant community in Bohai seashore plain Technological principles and strategies for development of resourcesaving eco-agriculture in the transitional zone of mountain and plain--A case study from Xilingdi Experimental Area in the hilly districts of Mt. Taihang Problems in agricultural developmeat in the plain located in front of Mt. Taihang and ways for dealing with--A case study from Luancheng County,Hebei Province Study on the indicators for assessment of agro-ecoenvironmental quality in saline region of Lower Haihe Plain PLANT SPECIES DIVERSITY OF THE ISLAND FOREST IN A MARSH IN THE SANJIANG PLAIN, CHINA Impacts of climate change on summer maize production and adaptive selection of varieties in Xingtai County, Hebei, China. Effects of Festuca arundinacea on the microbial community in crude oil-contaminated saline-alkaline soil. Ecological effect of different types land consolidation in Hubei Province of China. Effect of nitrogen amendment and straw-stubble input on accumulation of soil organic matter in typical farmlands of Huang-Huai-Hai Plain Characteristics of climate resources under global climate change in the North China Plain0 Dew condensation rules in farmland ecosystem in Sanjiang Plain Characteristics of microbial activities in soil profiles of Calamagrostis angustifolia wetlands in Sanjiang Plain