查询词典 loess plateau

On the basis of long-term experiment, changes in soil organic C, N and dynamics of soil NO〓-N of cropping systems were investigated in gully area of the Loess Plateau by means of analysis of the 15-year soil samples, crop yield in following crop systems: 1 continuous winter wheat with unmanured , nitrogen, organic manure , phosphorus and organic manure , nitrogen and phosphorus , nitrogen, phosphorus and organic manure , 2 continuous alfalfa, 3 pea-winter wheat rotation, winter wheat-sainfoin rotation, and 4 bare fallow. A model was developed according to the organic C dynamics, and was tested by the long-term experiment.

本文以中国科学院长武试验站的长期试验（始于1985年）为依托，通过对典型处理8-15年的土壤养分、作物产量以及同期降水量等的系统分析，揭示了黄土旱塬区不同种植体系中土壤有机碳、氮的演变规律；阐明了长期施肥条件下土壤硝态氮的迁移积累机理；提出了目前水肥条件下黄土旱塬区冬小麦生产潜力及其提高途径。

Taihang Range and the eastern part of Loess Plateau are possibly important corridors for connecting the floras of northeast and southwest China.

太行山区和黄土高原东部地区是联系我国东北和西南植物区系的重要通道，植物在经过这个地区时可能有三条不同的具体迁移路线。

Mulched non-textile can preserve soil heat, save water and benefit the plant growth, and it has a better spread prospect in foresting the sloping field and greening the wild region in the Loess Plateau.

无纺布覆盖进行水平沟造林能达到保温和节水作用，促进植被生长，对黄土高原地区坡地造林和荒山绿化具有较好的推广应用价值和实际意义。

In the topographically-broken gullied and hilly region of the loess plateau, we analyse the relationship among the density of gully, the developmental stage of gully, geomorphic form and soil erosion intensity with aerial photograph, and get some better results.

中文摘要：在地形破碎的黄土丘陵地区，利用航空遥感图像分析沟谷密度、沟谷发育阶段、地貌形态及其与土壤侵蚀强度之间的相关性，收到了良好的效果。

The ravines and gullies of the loess plateau have brought much inconvenience to the agricultural production, transportation and people's daily life.

黄土高原的沟壑化，给农业生产、交通运输以及人民的日常生活带来了诸多不便。

The problem of grain safety becomes the flex point whether ecological economic growth of Loess Plateau could produce the straight effect as the basic background of implementing the reforesting formerly cultivated land.

粮食安全问题作为实施退耕还林的基础背景，成为黄土高原生态经济增长能否产生正效应的拐点。

It is shown that the Loess Plateau might be regionalized into different vegetation zones of forest and steppe.

在阐述植被建造依据之后，本文讨论了植被建造的技术与模式，表明典型水土保持植物是建造水土保持植被的首选植物。

The creative results in the study are as follows. The theory of landscape ecology about drastic disturbance of landforms has been richened. A practical way could be found to identify the final direction of artificial ecosystem succession. Moreover, the results can be applied into study the land reclamation and ecological rehabilitation of the developed opencast mines and developing ones in loess plateau.

本研究结果的学科价值：丰富了极端生境下剧烈扰动地貌的景观生态学理论，为确定人工正确诱导下的矿区生态演替方向提供了可借鉴的方法和途径；应用价值主要体现：研究结果适宜于我国黄土高原正在开采和将要开采的大型露天煤矿的土地复垦与生态重建。

On an arid expanse of the Loess Plateau, farmer Ren Guibao trudges uphill with cornstalks he'll burn as fuel.

在黄土高原的干旱地区，农民任贵宝背着他用作燃料的秸杆爬上高坡。

According to the characteristics of the high altitude, the long period of low temperature in winter and the poor economic base in the Loess Plateau mountainous areas, the hen house of the brick arch structure with small windows was designed and built.

针对我国黄土高原山区海拔高、冬季低温持续时间长、经济基础薄弱的特点，为了满足蛋鸡生产的要求，设计建造了小窗砖拱鸡舍，分析并测试了鸡舍的主要环境因子参数。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了