About 24% of 11.5 billion hectares of vegetated land has already undergone human-induced soil degradation, in particular through erosion, the study says.
报告指出,全球115亿公顷植被生长区中,约有24%已然经历了由人类活动引发的土壤退化,尤其因土壤流失造成退化。
Research about soil erosion and its models are the emphases of study in our country and overseas.
土壤侵蚀及其模型的研究,长期以来一直是国内外学者研究的重点。
Rainfall-runoff simulation is the very important technique for soil erosion, non-point source pollution, surface water balance calculation and some other study fields.
降雨径流模拟是土壤侵蚀、非点源污染、地表水量平衡计算等众多研究领域的非常重要的技术手段。
Land use change is a core field of the global environmental change study. Soil erosion is accelerated by irrational land use.
土地利用变化是全球环境变化研究的核心领域,不合理的土地利用加速了土壤侵蚀。
Using alternant dem the study raised a new method based on the relation of sedimentation and precipitation to acquire the amount of soil erosion on hillslopes.
笔者提出一种基于不同时相实测数据建立交互数字高程模型研究坡面土壤沉积与搬运间的量化关系的方法,进而获得小流域坡面不同时相间的土壤侵蚀量。
It points out movable wind erosion tunnel will be the important instrument and will have a high economic value in the study of soil wind erosion.
指出移动式风蚀风洞将成为土壤风蚀研究的重要工具,在风蚀研究中具有极大的重要性和经济价值。
The soil erosion in study area is evaluated using GIS and RS.
结合GIS与RS对研究区进行土壤侵蚀状况评估。
Gully erosion holds an important position in soil erosion, and monitoring the gully erosion is the majorpart of the study of gully erosion.
切沟侵蚀在土壤侵蚀中占据重要位置,切沟侵蚀监测研究是切沟侵蚀研究的重要方面。
The results of this study can be used to control soil loss, manage water and soil resources and evaluate soil erosion in Yangbi.
本研究成果对于漾濞县的土壤侵蚀防治,水土资源管理和土壤侵蚀定量评价具有重要意义。
This article introduces the main achievements about affecting factors of soil erosion, and points out that the study about affecting (factors) of soil erosion is an important task in the future.
本文对国内外主要土壤侵蚀因子研究的成果进行了概述,并指出在今后相当一段时期内,土壤侵蚀因子的研究仍是土壤侵蚀模型研究的重要工作。
Based on the GIS technology and landscape Ecology theory, we study the soil erosion landscape heterogeneity in different soil types of Three Gorges Reservoir (Chongqing).
以三峡库区(重庆)为研究区域,以景观生态学原理为基础,借助GIS技术,重点探讨了研究区不同土壤类型的土壤侵蚀景观异质性。
Study on soil wind erosion and vegetation efficiency of wind and prevention sand resistance artificial vegetation at sand-land in yongding river in beijing.
北京市永定河沙地土壤风蚀与人工植被防风阻沙效益研究。
Its criterion is one of the basic contents concerned with study on predicting soil erosion.
确定侵蚀性降雨的标准,是土壤侵蚀预报研究的一项基本内容。
The study on gravity erosion has become one of difficulties in the domain of soil erosion because of its complexity and randomicity.
重力侵蚀因其机理的复杂性及较强的随机性而成为土壤侵蚀研究领域的难点之一。
At last, in view of the problems about China soil erosion and the present study situation Suggestions for speeding up China soil erosion research have been put forward.
针对我国土壤风蚀问题与研究现状,提出加快我国土壤风蚀研究的几点建议。
This method is highly efficient and can improve the speed and efficiency of regional soil erosion monitoring. It is an effective way to study regional soil erosion.
该监测方法省时省力,极大地提高了土壤侵蚀动态监测的速度和效率,为大范围的土壤侵蚀动态监测研究提供了有效途径。
Based on the analysis and study on the physical properties of karst soil in Guizhou Wujiang river basin in different type of vegetation and different degree of erosion.
本文分析研究了贵州乌江流域喀斯特土壤在不同植被类型和不同侵蚀程度条件下的土壤主要物理性质。
A new method with nuclear technology to study soil erosion amount monitoring on different topography part in Loess Plateau is reported in this paper.
本文介绍一种利用核素示踪技术研究黄土高原不同地形部位土壤侵蚀量的监测新方法。
To study mass transport from slope land, the process and mechanism of soil erosion and nutrient loss on the slope land under different drainage conditions were investigated by simulating rainfall.
为研究坡地物质迁移的重要过程,通过室内人工降雨模拟试验,研究不同透水状况坡地土壤侵蚀和养分流失的过程与机制。
High accuracy DEMs is an important data in study of soil erosion and terrain feature space analysis.
高精度数字高程模型(DEM)是水土流失规律研究与流域地形空间分析中重要的空间数据。
The result of study provided a new way for the resource of DEM data in the model of hydrology and soil erosion.
该数据可为水土流失地形因子的尺度效应研究提供数据支持。
The study shows that the identified sign of soil erosion of Bailu tableland are not erosive surface, but is the change of soil's thickness.
研究表明,白鹿塬塬区确定土壤侵蚀的主要依据是土层厚度的变化,并非侵蚀面。
Experimental study of effects of surge irrigation, PAM, and irrigation with saline ground water on soil water erosion was carried out in Hetao irrigation District, Inner Mongolia.
在内蒙古河套灌区采用波涌灌溉,施用PAM(土壤结构稳定剂)和利用地下咸水灌溉等不同处理进行了玉米地水蚀作用的试验研究。
The GIS-based soil erosion and sediment yield models, which can reflect the process of spatial distribution of soil erosion and sediment, will be the study focus in the future.
能反映侵蚀产沙时空过程的、基于GIS的分布式侵蚀产沙模型成为研究的重点。
The soil erosion classified data is the modeling result of these factors. The study expla…
研究结果反映了研究区土壤侵蚀现状及其动态变化情况。
The results of this study could be applied in soil erosion prediction by using soil erosion model.
研究成果可为应用土壤侵蚀模型进行土壤流失预报服务。
Through rainfall simulating in laboratory, and observation on soil sample slices, this study intended to disclose crust development, and reveal the relationship between crust and splash erosion.
通过人工模拟降雨溅蚀实验,测定土壤溅蚀速率,同时采样制作土壤切片,观察分析结皮的发育特征以及与土壤溅蚀的关系。
Based on analysing in depth to the wind erosion model and field foundation of testing, set up tentatively the soil wind erosion models which is suitable for the study the area.
在对风蚀模型深入分析和田间试验基础上初步建立了适合研究地区的土壤风蚀模型。
Based on analysing in depth to the wind erosion model and field foundation of testing, set up tentatively the soil wind erosion models which is suitable for the study the area.
在对风蚀模型深入分析和田间试验基础上初步建立了适合研究地区的土壤风蚀模型。
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