海岛棉产量性状杂种优势空间分布

以海岛棉亲本及杂交后代为试验材料，研究海岛棉杂种优势空间分布，结果表明：海岛棉籽棉重量、皮棉重量、单铃重、铃数均具有中部优势，7～10节位表现突出；海岛棉各节位的籽棉重、皮棉重的杂种优势呈负向优势，杂种后代在各节位铃数少是杂种优势负向的主要原因。     

西北干旱区湖泊岛屿的旅游开发战略——新疆博湖天格尔岛旅游开发为例

旅游被誉为朝阳产业 ,在西部大开发中起着重要作用。在竞争日益激烈的旅游市场中如何使新生景区保持强大的生命力 ,并使其成为当地的支柱产业 ,值得深入探讨 ,本文以博湖天格尔岛旅游区的开发为例 ,就干旱区湖泊中景观组合较好的岛屿的旅游开发提出了一些看法。     

A landscape-geochemical approach in insular studies as exemplified by islets of the eastern Baltic Sea

The main objective of our investigations is to find out the primary geochemical properties of insular landscapes in order to ascertain the landscape stability on an area of land uplifting in the conditions of a regressive sea. Therefore we focus our study on the landscapes of Kolga Bay islets, which are located near the Estonian coast in the Gulf of Finland. A landscape-geochemical approach of landscape study improves the mapping of insular landscapes and understanding of processes of landscape development. Besides land use changes, land uplift and marine influence shape the landscape patterns of island through topography and subsurface water. We propose geochemical typology of landscapes based on substance movement (eluvial, superwatery, subwatery), field studies on islands, and chemical analysis of soil and water samples. From a landscape geochemical perspective, types of matter fluxes mainly control stability of an insular landscape. Interactions between geochemical, ecosystem and geomorphic processes reveal that islands behave as systems, rather than merely a sequence of interdependent soil-vegetation complexes along topographic gradients. This revised version was published online in August 2006 with corrections to the Cover Date.     

台湾岛咖啡早期引种扩种史考

通过查阅大量的历史资料，并两度造访台湾，纵深考察台湾咖啡的过去和现在。得出台湾早期引种咖啡的准确年代为1884年的结论，认为台湾咖啡早期引种扩种和后来形成特有的咖啡文化，与国外通商和日本占领统治台湾有关，也与台湾本土自身的特色和天时地利有关。     

Preferred foraging areas of Heard Island albatrosses during chick raising and implications for the management of incidental mortality in fisheries

• 1. Incidental mortality in fisheries is causing declines in many albatross populations around the world. To assess potential interactions with regional fisheries satellite tags were used to track black-browed albatrosses (Thalassarche melanophrys) and light-mantled sooty albatrosses (Phoebetria palpebrata) breeding on Heard Island during the chick-rearing periods of 2003/04. This was the first time individuals from either population had been tracked.
• 2. Black-browed albatrosses foraged largely within the Heard and McDonald Islands Economic Exclusion Zone (EEZ) north-east of the island, although 20% of foraging trips were to areas north of the EEZ into Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) areas 58.5.1 and 58.5.2 and into the Îles Kerguelen EEZ.
• 3. In contrast, the light-mantled sooty albatrosses foraged well south of Heard Island along the southern boundary of the Antarctic Circumpolar Current. Both species appear to face minimal risk of incidental mortality during the chick-rearing period in the regulated, legal fisheries, but are threatened by illegal, unreported and unregulated (IUU) fishing vessels operating in the southern Indian Ocean.

Copyright © 2007 John Wiley & Sons, Ltd.     

海南紫金牛属植物资源及其在园林中应用的前景

综述了海南野生紫金牛属植物资源及其分布,并根据该属植物的生物学特性和园林的适用性进行了分类,阐述了紫金牛属植物在园林中的应用前景。     

海南岛典型水稻土硅形态空间分布特征及其有效性的影响因素

【目的】深入研究海南岛典型水稻土硅形态的分布状况及其有效性的影响因素,为海南岛典型水稻土硅养分的高效施肥管理和硅肥产业的发展提供科学依据。【方法】运用逐级提取法、GIS分析及逐步回归分析相结合的方法,分析海南岛5种典型成土母质(海相沉积物、河流冲积物、玄武岩、花岗岩、砂页岩)发育的水稻土硅形态的空间分布特征和影响有效硅的主控因子。【结果】海南岛典型水稻土有效硅平均含量为44.79 mg/kg,且所有样点有效硅含量低于100 mg/kg,属于缺乏水平。土壤有效硅、有机硅与铁锰氧化结合态硅的高含量主要分布在琼北和东南部,土壤全硅和无定形空间分布呈互补趋势。花岗岩发育水稻土有效态硅占比最低,无定形硅占比最高,玄武岩发育的水稻土有效态硅、有机态硅和铁锰氧化物结合态硅占比最高。除成土母质外,海南岛典型水稻土植物有效态硅主要受土壤pH和速效氮的调控。【结论】海南岛典型水稻土缺乏硅素现象严重,针对不同母质发育的水稻土实施合理施肥和田间管理模式已是当务之急。     

四个籼型水稻雄性不育系春季在海南岛开花动态的研究

１９９６年３月在海南研究了４个籼型水稻雄性不育系各５个生茎穗和其５个单株全部穗子逐日开花动态及１天中各时段开花动态，研究表明，四个籼型不育系主茎穗始花１－２天后进入盛花，盛花持续２－３天，单株全部穗子开花２－３天后进行当日开花率达１０％以上时期，该时期持续４－５天；在每天开花中，无论主茎穗还是单株全穗子，四个籼型不育系午后花率占多数，始花到终花历时６－８小时，每日盛花高峰在１２：００－１４：０００