土地利用程度变化最大的是渭城区,最小的是彬县。
On view of space, the biggest level of land use was Qindu area, the smallest Xunyi county;
不同地区地下水的微量元素浓度差异与气候状况、土地利用程度密切相关。
Differences in the concentration of trace elements are related to the climatic conditions and land use of the area.
研究区土地利用程度综合指数呈下降趋势,表明该区土地利用类型趋于多样化。
The comprehensive index of land use degree in the study area decreased, which indicated that the land use type tended to be diversification.
为了量化城市土地利用程度和开发密度,对研究区基于子像元的非渗透表面丰度进行了分类。
To quantitatively determine urban land use extents and development densities, sub-pixel impervious surface areas were mapped for this area.
人口密度与土地利用程度显著相关,居民工矿用地区位优势一定程度上体现了土地利用结构。
There was highly significant correlation between population density and land use degrees. Land use structure was embodied by location advantage of residents, industrial and mining land to some extent.
影响肥力变化的因子包括河流治理、施肥、高产品种使用后种植制度和土地利用程度的变化等等。
The factors affecting soil fertility are: river harnessing, fertilizer application, and the changes in cropping system and land utilization after the adoption of high yield hybrid verities.
研究结论:(1)土地利用评价已不能仅从土地利用程度或效益单方面入手,而应当从土地利用系统角度去考虑。
Conclusions include that (1) land use assessment should not on focus on the perspective of land use degree or effect unilaterally, but from the perspective of land use system.
通过以重庆市万州区、北碚区、酉阳县为研究样点,剖析了其土地利用动态度、土地利用程度和景观结构的变化情况。
Taking Wanzhou, Beibei and Youyang of Chongqing as the example, this paper analyzes the changes in land use dynamic degree, land use degree index and landscape structure.
研究目的:通过对区域土地利用程度与效益关系研究,发现之间规律并揭示土地利用问题,以指导今后区域土地科学利用。
The purposes of this paper are to find the relationship between land use degree and the benefit, and further reveal the land use problems to guide regional land use more scientific in the future.
目前针对武汉市城市土地的研究仅限于土地质量评价、土地分等定级、土地利用程度、土地利用结构演变及其动态监测层面。
At present, many studies aimed at Wuhan urban land only settled in land quality appraise, land classify, land use degree, land use structure evolvement and dynamic inspection, and so on.
采用土地经济学研究方法,从土地利用结构、土地利用程度和土地利用效益3个方面,对阜平县2003年土地资源利用状况进行了对比分析。
Analysis of land utility efficiency in Fuping County was made by economical ways from three aspects including land utility structure, utility degree and efficiency in 2003.
论文第四章分别从土地利用变化幅度、土地利用变化速度、土地利用结构变化、土地利用程度变化和土地利用变化的区域差异等不同角度分析了1994~2002年期间昆山市土地利用变化的过程,并总结了其变化规律。
Secondly, as a case study of Kunshan City, the paper analyzes the progress of land use change during the time from 1994 to 2002 and summarizes the rules of land use change in several ways.
根据评价结果结合武汉市土地利用的实际情况提出了提高城市土地集约利用程度的途径措施。
According to the practical land use of Wuhan City as well the result of appraisal, the paper offers measures for the improvement of intensified use of urban land.
土壤养分的流失程度与土壤质地、雨前含水量和施肥量以及土地利用方式有关。
The soil nutrient losses were connected with soil texture, water content and fertilizer quantity, and lands utilize way.
土地利用类型不同对产流产沙的影响程度不同。
Runoff and sediment yields are greatly affected by the type of land use.
春小麦群落的Q_(10)值高于草原群落,说明不同的土地利用方式会影响到土壤呼吸对温度变化的敏感程度。
The spring wheat community had higher Q10 value than other communities, which implied that land use could affect the sensitivity of soil respiration to temperature.
随着土壤流失程度的增大,流域不同土地利用状况下的A层土壤颗粒粒径分选系数降低。
With the increasing of soil loss, the sorting coefficient for soil particle diameter of a layer decrease in different types of land utilization.
依据原始矢量数据计算的土地利用景观格局指数,可以在一定程度上揭示精度损失变化特征的规律和成因。
The landscape indices, calculated from the original vector data, can indicate the law of the change of the area accuracy loss.
接着运用数学统计方法分析了三个时相土地利用变化的过程,发现各种土地利用类型都发生了一定程度的变化,但不同土地利用类型变化的总量和变化幅度却存在明显差异;
Then used mathematic method to analyze the change of land use, and it was found that all the land use types changed to some degree, but the amount and degree of change was different obviously.
目前水质处于中等富营养化程度,非点源是主要污染来源,土地利用则是影响非点源的主要因素。
The water quality of Miyun reservoir is at medium-eutrophication situation, which is mainly caused by the non-point source pollution (NPS) in the watershed.
图斑的平均坡度是新一轮土地利用更新调查中确定土地利用是否合理的重要参数,但常用的图斑平均坡度获取方法均存在不同程度的不足。
The parcels average slope is a vital parameter, which determines whether land use is rational in the current round of land use updated survey.
东、中、西部地区城市土地利用集约程度存在明显的递减趋势,其中上海市、北京市最高,甘肃省最低;
Urban land use intensity was descending sharply from the east, the middle to the west part of China, in which Beijing and Shanghai were the tiptop and Gansu was the lowest;
研究结果显示:(1)土地利用与景观格局变化特征:各类型变化程度不一,耕地草地呈减少趋势,林地、建设用地、未利用地呈增加趋势;
The results showed:(1) land use and landscape pattern characteristics: the type of change varies, Tended to decrease grass land, forest land, construction land and unused land tended to increase;
在土地利用中,用地结构不合理、集约利用程度低、土地资源退化、耕地流失严重等一系列问题时有发生。
During the land usage, a series of problems occur time to time, such as irrational land use structure, low degree of intensive usage, land resource degradation, serious loss of arable land.
分维值越接近该临界值,该土地利用类型的稳定性越差,复杂程度越高;
The more the value of D is closer to the critical value, the more the stability of land use type is worse, and the complexity of land use type is higher;
分维值越接近该临界值,该土地利用类型的稳定性越差,复杂程度越高;
The more the value of D is closer to the critical value, the more the stability of land use type is worse, and the complexity of land use type is higher;
应用推荐