草本植被

不同区域的草本植被恢复到特定盖度有明显的时间分异，所需时间与区域NPP（植被净第一性生产力）值呈负相关。

The grassland vegetation restoration to the specific degree of coverage has the obvious time differentiation in the different regions .

X2检验结果显示榆树、沙丘、风蚀坑三者在分布上相互之间存在极显著的正关联关系，草本植被的分布分别与榆树、沙丘、风蚀坑的分布之间存在极其显著的负关联关系。

The results showed that the distribution of herbaceous vegetation was observably negatively correlated with the distribution of sand dunes , elm trees and aeolian pits , respectively .

0～30cm、0～60cm土层内，有机质含量与地上草本植被生物量之间存在着显著的线性相关关系。

There are remarkable linear relationships between the soil organic matter contents in 0 ~ 30 cm and in 0 ~ 60 cm soil layers and ground biomasses of plant community .

结果表明，草本植被恢复演替过程可明显分为以下几个阶段：荠菜（Capsellabursa-pastoris）+铁苋菜（Acalyphaaustralis）+小白酒草（Conyzacanadensis）群落（退耕1年）；

The results show that the process of herbaceous vegetation restoration can be divide into the following stages obviously : Capsella bursa-pastoris + Acalypha australis + Conyza canadensis community ( 1 year abandoned );

土壤-草本植被根系复合体抗水蚀强度与抗剪强度的试验研究

Experimental Study on Anti-Water Erosion and Shear Strength of Soil-Root Composite

草本植被覆盖结构对径流侵蚀动力的作用机制

Effects of vegetative cover on runoff hydraulic characteristics and erosion

黄土高原草本植被水土保持作用研究进展

Progress of the effect of grassland vegetation for conserving soil and water on Loess Plateau

因而草本植被对降水的敏感性大于灌木。

Therefore , the herbage vegetation is more sensitive to precipitation than the shrub in desert-oasis .

草本植被的恢复是以田间杂草为主到多年生根茎植物为主的演替方向，弃耕时间超过3年时草本群落结构已经趋于稳定，多样性，均匀度均有大幅度上升，草本植被基本上得到恢复。

Herbaceous community structure became more stable after 3 years abandoned and its herbaceous vegetation restored elementarily .

但不同年龄马尾松人工林林下草本植被的物种组成变化不大。

However , species composition of herbage under P. massoniana plantation in different age was almost stable .

草本植被具有积极的保持水土的作用，在黄土高原生态环境建设中具有不可替代的作用。

Grassland vegetation plays active and important role in conserving soil and water , particularly in the eco-environment construction on Loess Plateau .

南水北调中线水源区弃耕地草本植被演替初步研究

A Preliminary Study of Herbaceous Vegetation Succession on the Abandoned Farmland at Water Catchment Region of Central Route for South-to-North Water Diversion Project

可见，退耕年限较久的刺槐林耗水性强，而灌木和草本植被的恢复更有利于提高土壤保水能力。

Therefore , Robinia pseudoacacia consumed too much soil water , but shrubs and herbaceous vegetation recovery is more conducive to increase soil water holding capacity .

输沙量与下垫面特性密切相关，植被盖度越大，输沙量越小；草本植被覆盖结构对径流侵蚀动力的作用机制

The total sediment correlated nearly with character of surface conditions and decreased with increased vegetative cover ; Effects of vegetative cover on runoff hydraulic characteristics and erosion

在辽西北部地区土地沙化调查中，进行的植被调查结果表明，草本植被平均盖度为71.9%。

Investigation on status of land desertification in northwestern Liaoning was conducted . The results regarding vegetation indicated that the average coverage for grass vegetation was 71.9 % .

结果表明：除降低雨滴动能外，坡面草本植被层具有明显的分流作用，降低了到达坡面的有效降雨量；

Results showed that the herbaceous vegetation could weaken kinetic energy of raindrops , and had a significant diffluent function during rainfall events to reduce effective precipitation on the slope .

乔木、灌木、草本植被类型对水土流失的影响不同：草本的年均径流量为1248m3/km2，灌木为843m3/km2，乔木为2079m3/km2；

The runoff amount of herbage vegetation was 1248m3 / km2 per year , while shrub and arbor vegetation were 843 m3 / km2 and 2079 m3 / km2 , respectively .

整个研究剖面段样品以nC31为主峰的高碳数优势，分子化石表明末次冰期间冰段洛川地区（黄土高原）发育草本植被而没有出现以森林为主的植被。

Biomarkers of all samples analyzed are characterized by a high carbon number majority of C_ ( 31 ), indicating that grass predominated the vegetation during the interstade of the Last Glaciation in Luochuan area and there was no forest developed during that period .

根据该地区草本植被类型及其生态条件，将草场资源划分为4大类（草旬草场、沼泽草甸草场、沼泽草场和疏林灌丛草场）14个组。

According to the herbaceous vegetation types and their ecological conditions , the grassland resources in San-jiang plain can be divided into four main groups : meadow grassland , marsh meadow grassland , marsh grassland and thin forest and bush-wood grassland of the fourteen types of grassland .

结果表明：（1）影响乔木、灌木和草本层植被格局变化的首要因子都是地形特征；

The results are as following : ( 1 ) The topographic characteristics are critical for the spatial variations of vegetation .