【Key words】 red soil region； agroforestry system； succession； synthetic evaluation； model；
基于6个网页-相关网页
Hilly Red Soil Region 红壤丘陵区
degraded red soil region 红壤退化区
limestone red-soil region 石灰岩红壤区
low hill red soil region 低丘红壤区
low hilly red soil region 低丘红壤
subtropical hilly red soil region 亚热带红壤丘陵区
red soil hilly region 红壤丘岗区
There existed a great change in quantity and species composition of understory plants after ten years of forest restoration in seriously degraded red soil region. The biodiversity and understory biomass of different rehabilitated models had some differences .
研究结果表明: (1) 在严重退化红壤区采取人工重建森林10 年后,林下植物数量和种类组成发生了较大变化,不同重建森林模式的林下植物多样性和生物量存在一定差异。
参考来源 - 退化红壤区重建森林的生态可持续性研究In the red soil region in the south of China, serious seasonal drought exists. It is important to quantify the soil drought degree and soil-crop drought threshold for drought evaluation and soil water management.
我国南方红壤地区存在严重的季节性干旱，定量研究土壤干旱程度并确定土壤—作物系统干旱阈值对干旱评价和土壤水分管理具有很重要的意义。
参考来源 - 连续干旱下作物阈值反应与红壤干旱程度表达·2,447,543篇论文数据，部分数据来源于NoteExpress
Soils on red soil region are strongly acid and this is suspected of limiting pasture production in south China.
南方红壤呈酸性，固磷能力强，磷和矿质元素普遍缺乏，因而牧草高产优质栽培中常需要重施磷肥。
In the red soil region, irrational land use has resulted in serious water and soil erosion and a decrease in soil productivity.
红壤地区长期以来，由于不合理的土地利用，导致了严重的水土流失，土壤生产力下降。
Red soil region in southern China is an important agricultural production base, with land area only of 1/5, but raising 40% of the population.
南方红壤区是我国最重要的农业生产地区之一，土地面积仅占全国的1/5，却养育了全国40%的人口。
应用推荐