演替系列的

The forest was characterized with phanerophyte evergreen plants with single-mesophyll-leathery leaves, which reflected the nature of tropical Karst mountainous seasonal rain forest.(2). Community succession was divided into five stages by using Cluster method, PCA method; the succesion stages include herbaceous stage, scrub-shrub stage, small tree stage, arbor stage and climax seasonal rain forest stage.(3). Based on similarity theory, succession sere was constructed with the community similarity equation formed.

结果表明：(1)森林群落在外貌上，以常绿高位芽、单叶、革质、中型叶植物为主，反映了热带岩溶山地季雨林的特点；(2)运用聚类分析、PCA排序等方法将群落演替阶段划分为草本群落阶段、灌丛阶段、小乔木阶段、乔林阶段、顶极季雨林阶段；(3)运用相似学原理，组建群落间相似度方程并以此方程构建了群落演替系列；(4)研究表明桂西南岩溶区生态系统健康受到严重胁迫。

Also, during this process, the water content in vegetation increases and keeps stable gradually, and the water environment in ecosystem will become suavely.

摘 要：本文以南亚热带常绿阔叶林为基本，同时探讨了热带南亚热带森林演替系列中8种生态系统类型的水分结构，发现植被水分结构的恢复与土壤水分结构的恢复是不同步的，50a以上没有受扰动的土壤，其土壤水分结构在时空上才趋于稳定；植被水分结构的时空稳定性基本上与生态系统的演替状况一致；为满足植被蒸腾的需要，植被中水分的月更新次数随着群落向顶极系统的演替而逐渐减少。

Clisere A succession of climax communities in given area, each giving way to the next as a result of climatic changes.

气候演替系列：在一定区域内的顶级群落的演替。作为气候变化的结果，每个演替为下一个演替作好准备。

New collapses are ceaselessly induced by the special geology geomorphological process, and then a new primary succession starts from bare rocks.

特殊的地质地貌过程使之不断有新的崩塌，从裸露的岩石开始的新的原生演替，如此形成不同时间系列的原生演替阶段。

By using the space series to replace time courses, the succession mechanism of plant community was studied by niche of population and dynamic change about importance value of plant functional types, setting in the plant communities with different succession series on zokor mounds in a subalpine meadow of Gannan.

采用：&空间代替时间&方法，以甘南亚高山草甸不同演替系列的鼢鼠土丘植物群落为对象，通过种群生态位和功能群重要值变化研究了鼢鼠土丘植物群落的演替机制。

Levins's and Shannon-Wiener niche breadth formula and Pianka's niche overlapping formulae are adopted to quantitatively study the niche breadths and overlapping feathers of major plant species in Malan forest standing in the Loess Plateau as well as analyze the niche patterns of these major plant species following their successions.

应用Levins、Shannon-Wiener生态位宽度公式和Pianka生态位重叠公式，定量研究了黄土高原马栏林区主要植物种的生态位宽度和生态位重叠特征，同时对主要种在演替系列上的生态位变化规律进行了分析。

Every community was stable relatively. Interspecific association was the loosest and stability was the highest in Q. wutaiensis community. But the insignificant positive association among species showed that Q. wutaiensis community has not reached the stable state, so we still should protect the local natural vegetation reasonably for a long time.

演替系列各群落都具有相对的稳定性，演替顶极辽东栎群落的种间联结性最弱，稳定性最高，但多物种间不显著的正相关说明该地区分布最广、面积最大的辽东栎群落可能尚未达到稳定状态，仍需要对该地区天然植被进行长期保护。

Stages in a secondary succession, which appear when the biotic components of a primary sere are destroyed, e.g. by fire, are called subseres; seres in microhabitats are called microseres.

次级演替群体出现于初级演替群体的生物组分发生一定程度的破坏后，例如：火灾造成次生演替系列；微生态改变造成微演替系列。

As a result, getting the following results:1Soil of Horqin sandy land mostly belongs to the eclipsed soil,there are the remarkable difference and regulational change about its machine constitutions, the physics and chemistry characteristics in different geography types.2A different geography of plant evolution is divided into follows:①livings of the sand②the wet living③the wasteland④livings of the salt⑤pasturing⑥natural wood.

据此，分析出以下结果：1）科尔沁沙地土壤大多属于高危风蚀土壤，其机械组成、物理化学性质在不同地貌类型中存在着显著差异并具有规律性的变化特征。2）沙地不同地貌类型区植被演替系列共分为：①沙生、②湿生、③撂荒地、④盐生、⑤放牧、⑥天然林这6个演替系列。

A sere on uncovered rock is a litho sere .

在光秃岩石上的演替系列是岩生演替系列。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。