基于主导因素法的省级农业类限制开发区划分——以内蒙古自治区为例

在遵循国家主体功能区划结果的基础上,采用主导因素法对国内重要的农牧业生产基地——内蒙古自治区进行省级农业类限制开发区的划分.将全区的15个旗、县、市(区)划为省级农业类限制开发区,作为自治区主要的农畜产品供给区域,保障全区的食物安全.     

Carpospore release in a species of Polysiphonia

Intertidal algae from rockpools at different tidal heights, along with Laminaria holdfasts and samples of sublittoral algae were collected from both the sheltered and exposed side of Filey Brigg, North Yorkshire. Samples of sediments were also collected from MLWS on the sheltered shore. A total of 1091 individual ostracods, consisting of 32 species, from 20 genera and 12 families, were identified from 15 sites along the Brigg in July 1996. The current study lists the occurrence of thirteen species previously unrecorded for the Yorkshire coast, and confirms presence of three species that were thought to have a general distribution around the British Isles. The seven Paradoxostoma species showed distinct zonation patterns on both the sheltered and exposed shore. Paradoxostoma ensiforme and P. variabile were only found intertidally, P. hibernicum decreased numerically down shore, and P. bradyi and P. abbreviatum were only found in low shore, Laminaria holdfast or sublittoral samples. This pattern was also seen in many other species, e.g. Xestoleberis aurantia, which only occurred in the intertidal phytal samples, whereas others were only found sublittorally, e.g. Sclerochilus truncatus. Cytherois fischeri, Paradoxostoma robinhoodi, Hemicytherura cellulosa, Leptocythere psammophila, Semicytherura sella and Sclerochilus gewermuelleri were found on the exposed shore only and Cuneocythere semipunctata only occurred on the sheltered shore. Apart from these differences in distribution, the other species occurred on both sides of the Brigg, with only minor differences in density. Some species were more numerous on the sheltered shore (e.g. Heterocythereis albomaculata), whereas others occurred in higher frequencies on the exposed shore (e.g. P. hibernicum). However, there was no marked difference in assemblage structure between the sheltered and exposed side of Filey Brigg. The intertidal phytal assemblages then showed a high degree of similarity. However the sublittoral assemblages were markedly dissimilar from the high-shore assemblages and there was little similarity between the intertidal phytal and sediment assemblages. Although some species occurred in both habitats, e.g. Cythere lutea, others were only found in either one or the other. The phytal assemblages had a higher species richness of ostracods and were more diverse than the sediment assemblages. However, there was no correlation between phytal ostracod species diversity and tidal height, or between diversity and sediment content of the algae. The Yorkshire coast ostracod fauna is compared and contrasted with that previously described by other workers from southern and western Britain.     

Ventilated Double Skin Facades in Hot-Summer and Cold-Winter Zones in China

Double-skin facades (DSF) are a technique developed for colder climates, so few people think about whether or not it can also be used for hot-summer and cold-winter zones in China.After analyzing the problems of using DSF for hot-summer zones,this paper explored on the possibility of applying DSF in hot-sum-met and cold-winter zones in China.The main existing research methods for DSF were also collected and com-mented.If properly managed.the ventilated DSF with controlled shading devices can be used even in hot sum-met in China.     

国家高新区高质量发展评价体系构建研究基于政策文本的分析

国家高新区建设已进入国家政策的普惠阶段，正在步入高质量发展的轨道。如何进一步认识国家高新区创新发展相关政策的引导作用，构建符合国家高新区高质量发展内涵的评价体系则具有现实的必要性和重要性。本研究以国家政策导向为基础，以基于质量视角的相对指标为核心，力求指标与时俱进，进而提出由创新环境、创新动力、创新支撑、创新路径、创新可持续性等5个一级指标和20个二级指标构成的高新区高质量发展评价体系框架，以期为高新区高质量发展评价体系构建提供参考。