随着上海市经济的迅速发展,人口飞速增长,对水资源的需求日益增加.淀山湖作为上海的饮用水源保护地之一,近年来蓝藻水华频发,富营养化程度不断加剧,水环境安全受到严重威胁.上海青草沙水源地的开发为上海提供了优质的新水源,但其也存在潜在藻类暴发的风险.因此如何保证饮用水源的水质安全和防治富营养化,成为上海供水安全的当务之急.本研究以上海两大水源地:淀山湖和青草沙水库水体中的蓝藻群落为研究对象,通过采样分析
非点源污染是发生在大地理空间尺度内的环境问题,因其影响范围广、交换过程复杂、难于控制,一直是环境治理领域的难题.菌根(Mycorrhiza)作为真菌与植物根系形成的复合吸收器官,因其在植物-土壤系统内元素循环过程中扮演的重要角色,有望成为应对当前广泛存在的非点源污染问题的有效手段.针对农业非点源污染发生历经的"产、流、汇"三个关键控治单元,施以菌根为核心的生物技术,形成以基于源头减量的农业清洁生产
Apple breeding and cultivation including new cultivars is among the most attractive and important issues for apple researchers.As almost all apple cultivars shows gametophytic self-incompatibility (GS
To cope with iron (Fe) deficiency, plants have evolved a wide range of adaptive responses from changes in morphology to altered physiological responses.Recent studies have demonstrated that nitric oxi
Apple canker caused by Valsa mali is a destructive disease that causes seriouseconomic losses in China.In this study, the dynamics of release of conidial masses (cirri) in appleorchards were studied i
A majority of works developed in apple tree architecture and physiology in past decades are based on trees grown in monocultivar high density orchards.Here we propose to connect knowledge on the tree
Predicting harvest fruit size influences agronomic management such as pruning, thinning and irrigation.Post-harvest management options used to manage variability in fruit size and blemishes (e.g.sunbu
Contemporary apple orchard planting systems become yield-limited (max.100-120t ha-1) at mature canopy size because light interception by the planting system typically peaks at a maximum of 55-65％ of t
In general, cool climate region is defined as the transitional region between mid-temperate zone and warm temperate zone, with about-10℃ ～-14℃ of the average temperature in January, and covers vast ar
Pruning of fruit trees is usually conducted manually and is the second most labor intensive practice in orchards, after harvesting.Interest in more labor-efficient methods of dormant pruning has incre