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- Topography and land use types are key factors which affect soil properties variability on catchment scale in the loess hilly area. 摘要在黄土高原小流域尺度上，地形和土地利用是影响土壤变异的重要因素。
- Based on the experimental results, this paper analyzed the water equilibrium features and ecological adaptability of the dry-land crops in the loess hilly areas of south Ningxia. 摘要依据田间试验结果，对宁南黄土丘陵区主要作物水分平衡特徵与水分生态适应性进行定量评价。
- The Impacts of Conversion of Cropland to Forest and Grassland on Land Use in the Loess Hilly Area 退耕还林草对黄土丘陵区土地利用的影响
- Some suggestions are proposed for loess hilly area of south Ningxia. 为宁夏南部黄土丘陵区生态恢复提出了几点建议。
- the loess hilly area 黄土丘陵区
- The funnel shaped catchment afforestation is a new forestry technique in semiarid loess hilly area. 漏斗式集流造林技术是黄土丘陵半干旱区旱作林业的一个创新。
- Water Equilibrium Features and Ecological Adaptability of Dry - land Crops in the Loess Hilly Areas of Southern Ningxia 宁南黄土丘陵区旱地作物水分平衡特征与水分生态适应性研究
- Resource conditions and countermeasures implementing the strategy of returning the grain plots to forestry and grass on Loess Hilly Area. 黄土丘陵沟壑区实施退耕还林还草战略资源条件与对策。
- The cultivation technique of major fine pasture in the semiarid and loess hilly area wasstudied and reviewed in details. 比较详细地研究总结了半干旱黄土丘陵区主要优良牧草的栽培技术。
- In order to improve the accuracy of landuse classification in loess hilly area, a large scale relief map was used to create the digital geomorphic model (DGM). 本文拟探讨在黄土丘陵区运用大比例尺地形图数据，建立区域数字地貌模型；
- This experiment is a part of orientate experiment of optimum farming, forestry and animal-husbandry structure on both ecology and economy at loess hilly area. 本试验系上黄试验区农林牧优化生态经济结构试验的一个组成部分。
- In this paper, based on the analysis of the ecosystem health situation and its diagnoses, a set of indictors of eco-economic system in mesoscale was established in loess hilly area. 本文在分析流域生态系统健康特征和诊断指标筛选原则的基础上，构建了一套适合于该区中尺度生态经济系统健康诊断指标体系。
- Located at the northwest edge of the Loess Plateau and Qinling offshoot hilly areas between the beams for a typical loess hill and valley terrain. 位处西北黄土高原边缘与秦岭支脉丘陵地带之间，为典型的黄土梁峁与河谷地形。
- There is a large hilly area in the northwest. 西北部有一大片丘陵地带。
- loess hilly area of northern Shaanxi 陕北黄土丘陵区
- the loess hilly and gully region 黄土丘陵沟壑区
- the loess hilly of Southern Ningxia 宁夏南部
- Railroad Line Selection in Loess Hilly Areas 黄土丘陵区的铁路选线
- Study on dynamic laws of soil moisture in hilly area of the Loess Plateau 黄土高原丘陵沟壑区土壤水分变化规律的研究
- Huaxia Culture takes root in the loess plateau. 华夏文化深深地扎根于黄土高原。
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海词词典，十七年品牌
