Competition is common in nature . Generally competition between tree species is divided into two groups : aboveground competition for light and belowground competition for soil and water resources .

竞争是自然界中普遍存在的现象，林木之间的竞争包括地上部分对光照的竞争和 地下 部分对水分和养分的竞争。

Total belowground carbon allocation in Castanopsis kawakamii and Chinese fir plantations in subtropical area of China UNDERGROUND

格氏栲和杉木人工林 地下碳分配

Belowground biomass in light degraded grassland is higher than in severely degraded grassland .

轻度退化草地 地下生物量明显高于退化草地。

The Variation of All Types of Buds of Belowground Bud Bank and Their Relationship with Aboveground Shoots in Leymus Chinensis Population

羊草种群 地下芽库各类型芽变化及与地上植株形成关系的研究

Recent Advances in the Interaction between Invasive Plants and Belowground Ecosystem

外来入侵植物与 地下生态系统相互影响的研究进展

Soil Respiration and Total Belowground Carbon Allocation Along a Chinese Fir Chronosequence

杉木林年龄序列土壤呼吸与 地下碳分配

Further more the research of root biomass and its distribution in succession can provide the new theoretic bases for forest dynamics also maybe the one focus of the belowground ecology .

在演替过程中，根系生物量及其分布动态的研究，可以为森林群落动态学提供新的理论基础，是 未来 地下生态学研究的焦点之一。

Both aboveground biomass and belowground biomass decreased with species richness increase and inclined to negative relationships .

植物的地上和 地下生物量都随着丰富度的增加而减少，倾向于负相关关系。

Survival rate belowground biomass and aboveground biomass of the seedlings were affected by salinity pH and their interactions .

盐浓度和pH值 梯度以及二者 间的交互作用对苜蓿幼苗地上、 地下生物量和存活率均有 极 显著影响。

Belowground Carbon Dynamics of Secondary Forest Ecosystems in Northeastern China

东北天然次生林生态系统 地下碳动态研究

Occurrence and output of all types of belowground buds of Leymus chinensis and the dynamics of formation and maintenance of aboveground shoots Specific Composition of Wetland Community in Yellow River Delta under Different Human-induced Disturbances and Its Causes

羊草种群各类 地下芽的发生、输出与地上植株的形成、维持动态黄河三角洲不同人工干扰下的湿地群落种类组成及其成因

The reason of soil respiration rate increasing in the fenced plots might be the increases of biomass in the belowground and soil water content .

（m2.h ） -1，围栏样地土壤呼吸作用的升高可能与 地下生物量增加和土壤水分 改善 有关；

There was positive correlation between aboveground biomass and heating field while there was not significant relationship between belowground biomass and heating field .

地上生物量 季节 变化与热源 强度具有显著的正相关关系，而 地下生物量 季节 变化与热源强度关系不明显。

In the past decades the aboveground and belowground components of ecosystem have traditionally been considered in isolation from one another and few studies have experimentally investigated the influence of plant diversity on soil microorganisms .

以往对生态系统的地上与 地下部分研究常常孤立进行，并且很少探寻植物多样性对土壤微生物的影响。

The concentrations of nitrogen and phosphorus between above and belowground biomass differed significantly ( p < 0.05 ) .

大部分植物地上部N和P的浓度 大于 地下 部（p<0.05）。

The perennial rhizomes formed closely crowed belowground networks .

多年生 根茎在 沙 基质中形成 多层密集网络结构；

Timing-and concentration effect of belowground treatment with jasmonic acid on maize seedlings chemical defense response

外源茉莉酸处理 地下部对玉米化学防御反应影响的时间和浓度效应

On land ecological system ( In Terrestrial ecosystem ) the aboveground plant community and the belowground soil microbes are connected with each other and the aboveground-belowground linkages is an important band for the combination of aboveground and underground ecosystem .

在陆地生态系统中，地上植物群落与 地下土壤微生物是相互联系的，它们之间的相互作用是生态系统地上、地下结合的重要纽带。

We suggest that both the vertical distribution characteristics of belowground biomass and its effects on soil quality reflect the long-term adaptation of plants to the alpine environment .

各群落的 地下生物量的垂直分布特征及与土壤环境的关系是植物长期适宜高寒生境 条件 的 结果和反映。

Grasslands play a significant role in terrestrial ecosystem carbon cycle due to large biomass stored belowground .

温带草地大部分生物量分布在 地下，地下生物量在草地生态系统碳循环中起着重要作用。

The results showed that the belowground modules of C.lasiocarpa had significantly different responses to water regimes .

结果表明：毛 苔草 地下构件生长对不同水文情势的响应具有显著差异；

The ratio of belowground to aboveground biomass increased with the aboveground biomass .

地下 /地上生物量的比值越大，地上生物量就越高。

But belowground the environment may have been very different & warm watery and possibly even hospitable to life .

但 地下环境可能或许截然不同&温暖，潮湿，甚至可能有生命。

The biomass of rhizome adventitious root and belowground part were maximal under dry-wet alternate condition at both growth stages .

在生长 旺盛期和末期，干湿交替处理下 毛苔草根茎、不定根及 地下总生物量均最高；

The effects of fire on ecosystems are complex ranging from the reduction or elimination of aboveground biomass to impacts on belowground physical chemical and microbial mediated processes and fine root .

火对生态系统的影响是复杂的，范围也很广，从减少地上部分生物量到对 地下 部分物理性质、化学性质、微生物降解过程和细根系的生长。

During The two years experiment we found that there was no significant correlation between aboveground biomass belowground biomass and plant diversity .

连续两年调查发现植物地上生物量和 地下生物量在围栏 内外均未 表现出与物种多样性的显著相关。

The biomass allocated to aboveground and belowground was changed by AMF wherever under salt or non salt environments .

无论有无盐胁迫，AM真菌极大改变了植物生物量的地上 地下分配 比例。

Changes in plant diversity are known to affect ecosystem functioning including aboveground arid belowground .

植物多样性的变化会影响生态系统的功能，包括地上和 地下 两 部分。