Nutrient retranslocation in fine roots of Cunninghamia lanceolata,Alnus cremastogyne and Kalopanax septemlobum in the mixed plantations-a pilot study Preliminary study on purification function of reed wetland for nutrients from land sources Mixing of Cunninghamia lanceolata with Michelia macclurei and restoration of self sustaining mechanism in G. lanceolata plantation Nutrient balance in rice field ecosystem of northern China Role of root exuded organic acids in mobilization of soil phosphorus and micronutrients Utilization of carbon and nitrogen nutrients by mycorrhizal fungi in oak forest Above-ground biomass and nutrient accumulation and distribution in different type Sonneratia carseolaris-Kandelia candel mangrove plantations Effect of organic materials on the composition characteristics of micro-aggregates in albic soils and their nutrient contents Effect of plant community succession on soil chemical properties in Tiantong, Zhejiang Province Larch litter and soil fertility Geographic differentiation of yield increase efficiency caused by recycled nutrients in agro ecosystems Impact or Cd on growth and nutrient accumulation or different plant species Optimized Pattern of agriculture-animal husbandry combination in Songnen Plain of Northeast China Nutrient return and productivity of mixed Cunninghamia lanceolata and Michelia macclurei plantations Role of nitrogen-fixing trees in mixed forest Ⅱ. Seasonal variation patterns of N and P contents in leaves of nitrogen-fixing trees Internal and external nutrient transfers in foliage of some north deciduous trees Ⅰ Changes of nutrient concentrations and contents Distribution and accumulation pattern of nutrient element in Pinus sylvestriformis plantation ecosystem COMPARATIVE STUDY ON RESPONSES TO NITROGEN NUTRIENT OF DIFFERENT DROUGHT RESISTANCE TYPES OF WHEAT UNDER WATER STRESSES Estimation of nutrient level and fishery yield of Patinopecten yessoensis in mariculture area near the Zhangzidao Island of the north Yellow Sea Water holding capacity and potential nutrient return capacity of main herb species litter in the Hill-Gully Loess Plateau The Plant Vascular System: Evolution, Development and Functions Characteristics of nutrient dynamic in hydrological processes of first and second rotations of prematured Chinese fir plantations Effects of nutrient on polyamines variation in the mesocosm in the East China Sea The effect of bryophytes on nutrient accumulation in surface soil in the Wudalianchi volcanic area Seasonal and spatial variations of nutrient and the response of phytoplankton in PRE and Adjacent Sea Areas A preliminary study of effects of warming on the nutrients dynamic in sediment of hypereutrophic shallow lake Dynamics of soil nutrients and their response to seasonal freeze-thaw in the subalpine-alpine forests of western Sichuan Effects of straw incorporation modes on microbial activity and functional diversity in sandy soil Effects of faba bean (Vicia faba L.) root exudate on soil available nutrients and microbial population in different purple soils Nutrient restrictive factors, nutrient absorption and accumulation of red kidney bean Nutrient cycling and balance in farmland ecosystem in Bohai Lowland Plain Effect of rice husk biochar on lettuce Cd uptake and soil fertility Distribution characteristics of organic carbon and total nitrogen in dry farmland soil aggregates under different tillage methods in the Loess Plateau of central Gansu Province Effect of planting patterns on crop yield, nutrients uptake and interspecific competition in maize-soybean relay strip intercropping system Phytoplankton population dynamics and Coscinodiscus concinnus blooms in the west-coast water of Schleswig-Holstein,Germany in 1996 Effects of salinity, light and nutrients on photosynthesis of sterile Ulva pertusa Land use changes and soil nutrient changes:a case study in Zunhua County,Hebei Province The effect of land use changes on soil conditions in Korla City, Xinjiang Nutrientcycle in Eucalyptus grandis×urophglla plantation Effects of plastic film mulching periods on the soil nitrogen availability in semiarid areas Soil nutrient field analysis for plant species in Songnen alkaline grassland Plasticity of clonal architecture in response to soil nutrients in the stoloniferous herb Duchesnea indica Focke The nutrient use efficiency ( NUE ) of plants and it′s implications on the strategy of plant adapta tion to nutrient Stressed environments Changes of some major and micro nutrients during the decomposition process of oak twigs Factors influencing the availability of nutrients in the soil of Duolun County in mixed area of agriculture and pasturing Nutrient losses in different land use types in the Three Gorge Reservior Area (TGRA) THE STORAGE AND CYCLING NUTRIENT OF Ixonanthes chinensis IN SOUTH SUBTROPIC BROAD LEAF EVERGREEN FORESTS,HEISHIDING NATURAL RESERVE,GUANGDONG PROVINCE NUTRIENT CYCLING AND BALANCE OF SLOPING UPLAND ECOSYSTEMS ON RED SOIL Effects of seabuckthorn( Hippophae rhamnoides L.)on nutrient distribution and biological cycling of poplar plantations in dry subhumid area of China Nutrient distribution and cycling of a Masson‘s pine planted forest in Dinghushan Nutrient cycling and balance analysis of blacklocust forest ecosystem in gullied loess plateau area Study on Changes of Soil Fertility as Affected by the Replacement of Broadleafed Stand by Chinese Fir Stand in Nanping Biocycling of Nine Nutrient Elements in Winter Wheat on a Calcareous Alluvial Soil From Beijing The Effect of Nitrogen Addition on Soil Nutrient Leaching and the Decomposition of Chinese Fir Leaf Litter Decomposition of Leaf Litter of Chinese Fir and in Mixture with Major Associated Broad-leaved Plantation Species Coarse Woody Debris in an Abies fargesii Forest in the Qinling Mountains Changes of Nutrient Concentration During the Decomposition Process of Oak Twigs Scaling relationships and stoichiometry of plant leaf biogenic elements from the arid-hot valley of Jinsha River, China Effect of combined nitrogen and phosphorus fertilizer application of wheat-maize intercropping system Spatial distribution regularities of farmland soil quality in subsidence areas of coal filling mining and non-filling mining Regional differences in soil nutrient content along the forest edge in the northern slope of Tianshan Mountains Effect of net terrace biological bank on soil nutrients distributions along slope Effect of bast-fiber film mulching and fertilization interaction on soil nutrient, soil enzyme activity and pepper growth Effect of fertilizer amount on yield and nutrient accumulation of green manures Effect of fertilization regime on tea yield, nutrient accumulation and soil fertility Decomposition characteristics of returned rapeseed straw in soil and effects on soil fertility A summer maize dressing decision-making model based on effective accumulated temperature Studies on recommended fertilization methods of summer maize in different fluvo-aquic soil texture Uptake and conversion efficiencies of NPK and corresponding contribution toyield advantage in cotton-based intercropping systems Effects of long-term fertilization on weed community characteristics andcarbon, nitrogen and phosphorus stoichiometry during winter-springseason in yellow-clay paddy fields of South China Influence of grazing disturbance on stoichiometric characteristics of alpine Rhododendron shrublands underground soil nutrient pool Effects of combined application of different nitrogen sources and magnesium fertilizers on cabbage yield, quality and nutrient uptake Effects of heavy metal compound contamination of Cd, Zn, Cu andPb on soil biological activity Spatial heterogeneity of soil organic carbon and total nitrogen concentrations in a Lithocarpus glaber-Cyclobalanopsis glauca evergreen broadleaved forest A comparative study on the decomposition processes among some aquatic plants Apparent settling velocity of nutrients in Banchengzi Reservoir, Beijing Effects of sod-cultural practices on soil nutrients and microbial diversity in the Carya cathayensis forest Decomposition of above and belowground organ litters of mid-subtropical woody plants The discussion of affecting factors on soil microbial community structure in a sugarcane land under different fertilization treatments Spatial heterogeneity of the main nutrients in Guangxi forest soils