secondary succession

Study on insect community dynamics of secondary succession in Xishuangbanna

西双版纳热带雨林次生演替中昆虫群落的动态研究

The results show that the differences and site conditions different harvesting methods to tree secondary succession of plant communities on the process and direction have varying degrees of impact .

结果表明：立地条件的差异和疫木不同采伐方式对植物群落次生演替的进程和方向都有不同程度的影响。

Secondary succession of earthworm population in high production agro-ecosystem in North China

华北高产农田生态系统中蚯蚓种群次生演替规律

The Comparative Study on Leaf Anatomic Characteristics of Dominant Species Seedlings in Different Stages of Forest Secondary Succession

不同演替阶段森林群落优势种苗木叶形态解剖结构比较研究

Study on species diversity under secondary succession of semi-natural protected forest in center of Sichuan

川中半自然型防护林演替过程中的物种多样性

In the secondary succession of vegetation , the direction , speed and characteristics were mainly determined by human activities .

在次生演替过程中，决定次生演替性质、方向和速度仍然是人为活动。

Soil Nutrients Characteristics in Shrub Appearance Stage of Vegetation Secondary Succession in the Hilly-gullied Loess Region

黄土丘陵区植被次生演替灌木初期的土壤养分特征

The Effect of Vegetation at Different Secondary Succession Stages of Semi-Humid Evergreen Broadleaved on Interception in Central Yunnan , China

滇中不同次生演替阶段植被类型对林冠截留的影响

Secondary Succession Model of Forest Vegetation and Strategies of Restoration and Rehabilitation of Low Mountains and Hills in Xu-Lian Ecotone

徐连过渡带低山丘陵森林植被次生演替模式与生态恢复重建策略

In the process of secondary succession from conifer-broadleaf forest to broadleaf forest , species richness fluctuated remarkably .

在针阔混交林向阔叶林演替过程中，物种丰富度指数表现为较大的波动性。

Study on man-made regeneration technique of ALM from secondary succession of dragon spruce and Faber fir forest in frigid and temperate zone

寒温带云冷杉林次生演替成亚高山草甸人工更新技术的研究

The Dalbergia hupeana natural forest being in the maturation phase of secondary succession belonged to the Deciduous Broadleaved Forest .

黄檀群落已进入次生演替的成熟阶段，属于典型的落叶阔叶林。

In this paper , principal components analysis in two groups , group E and group S. is applied to the study of secondary succession of vegetation in Tongchuan . area . Shaanxi province .

本文用E、S两组主分量分析，对陕西省铜川地区植被次生演替进行分析。

In this format is to adjust the strategy to expand product range to meet the low-end market price , is still focused on primary and secondary succession of high-end market , Dig ?

在这种格式下，是要调整战略、扩大产品价格范围以适应低端市场，仍是继承专注于一二级高端市场的深掘？

Soil microbial community occurred obvious secondary succession in 15 months after fire . Recovery of microorganism was more significant at 1 year after fire ( summer of the second year ) than other time .

火烧后15月内，土壤细菌群落发生了较明显的次生演替过程：火烧后1年即次年夏季，某些细菌群落恢复较为明显。

Herb is the most dominant proportion in the composition of soil seed banks of these four forest types , which , however , is decreased as forest becomes older in the secondary succession .

草本植物无论是在种类还是个体数量上都是这几类森林土壤种子库的优势成分，但随着森林演替年龄的增加，其所占比例有所减少。

According to the effects of light intensity on forest edificators , the successional relationships among the 12 formations are analyzed , and the secondary succession model of the forest vegetation on hills in Xuzhou is built .

根据建群种与光照强度的关系研究了各群系的演替次序，构建了徐州低山丘陵森林植被次生演替模式。

Only primary effects of cutting disturbance on soil fauna community were studied in this paper , the further researches on the effects of secondary succession of eucalypt ( Eucalyptus grandis ) plantation on soil fauna need further study .

本研究仅开展了采伐干扰后巨桉人工林生态系统土壤动物群落的初期调查，采伐干扰对巨桉人工林土壤动物群落演替发展的持续性影响，有待进一步研究。

The relationship between the vertical structure in the secondary succession community of the evergreen broad leaved forests on the Jinyun mountains in Chongqing and species diversity in them was estimated and analyzed based on their vertical structure and species diversity index .

从垂直结构和物种多样性指数，测度分析了重庆市缙云山常绿阔叶林群落次生演替序列垂直结构与物种多样性的关系。

The recovery of anthropogenic vegetation is obviously faster than that of natural vegetation . It took 8-9 years up to the climax stage in the anthropogenic vegetation , but in the natural vegetation only up to the secondary succession stage .

植被恢复进程，人工植被8～9年后就达到演替的顶极阶段，自然植被8～9年仍处于次级阶段。人工植被显著比自然植被恢复快。

Environment and fire have some effects on secondary forest succession .

环境和火对次生林演替有一定影响；

The quantitative study on the secondary forest succession in Chun'an county , Zhejiang Province

浙江淳安天然次生林演替的定量研究

The comparative study on photo plasticity of the dominant species seedlings of secondary forest succession

森林次生演替优势种苗木的光可塑性比较研究

Microbial Biomass and Nutrients in Soil at the Different Stages of Secondary Forest Succession in Southeast of Hubei Province

鄂东南低山丘陵区不同植被演替阶段土壤微生物与土壤养分研究

Spatial Variability of Soil Nutrition during the Process of Secondary Forest Succession in Low Mountainous and Hilly Area of Northern Jiangsu

苏北低山丘陵区森林次生演替过程中土壤养分的空间变异低山丘陵区红壤酸雨中典型阴离子垂直迁移状况及模拟

After that , spoken language teaching activities have been operated in every technical secondary school in succession . But there are always some problems in process of practical teaching and study : emphasizing theories , undervaluing practical operating , being absent of traits of science and system .

各中职学校陆续开展口语交际教学，但在实际的教学与研究中存在重理论，轻实操，教学缺乏科学性及系统性等问题。