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arable land相关的网络例句

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Second,the swollen population had stimulated the progress of agriculture through building irrigation works,cultivatmg more arable land,improving tods and further utilizing the technology.

第二,东汉江南人口的增加促进了农业的开发。具体体现在水利的兴修、新的耕地面积的进一步开辟、生产工具的改进及生产技术的进一步利用。

In about a century' s time, their livelihood of swidden agriculture has been changing greatly along with the natural and social environment change. Before 1950s, as a minor group frequently move in the subtropical mountainous area characterized by scarce arable land, high forest coverage rate and sparse population, Kemu people has long been engaged in swidden agriculture which was simple, called for no sophisticated production tools and was suitable for frequent movement. At that time, they adapted to the environment change mainly by moving frequently from one place to another, and their livelihood was featured by complete dependence on environment, frequent movement and swiddening without continuous cultivation. From 1950s to early 1970s, their way of adaptation changed into migration within defined territory and shortterm fallow featured by complete dependence on environment, migration within limited area and short fallow. In early 1970s, they leaned from outside to cultivate irrigated fields and plant cash forest and their livelihood was featured by complete dependence on environment and agro-forestry.

近一个世纪以来,随着其所处自然环境和社会环境的变迁,其刀耕火种的生计方式在不断地变化:20世纪50年代以前,作为频繁迁徙于山多地少、森林覆盖率高、人烟稀少的热带、亚热带山区的弱小族群,以开发容易,便于流动作业不需要复杂生产设施的刀耕火种为其传统的生计方式,主要以迁徙的方式对环境变迁进行调适,其刀耕火种生计方式的特征表现为完全依赖型、随意迁徙型、无轮作型;20世纪50年代至70年代,其主要以固定区域内迁徙和短期轮作的方式对环境变迁进行调适,其刀耕火种生计方式的特征表现为完全依赖型、在固定区域迁徙型、短期轮作型刀耕火种;20世纪70年代初,其主要以外文化——开拓水田及人工造林的方式对环境变迁进行调适,其刀耕火种生计方式的特征表现为部分依赖型、粮林轮作型刀耕火种;20世纪80年代以后,其主要以发展橡胶种植业对环境变迁进行调适,其刀耕火种生计方式的特征表现为暂时依赖型刀耕火种。

The results showed that 1518kg farmyard manure and 59.9kg chemical fertilizer, equal to 38kg N, P and K pure nutrient, were applied per unit area (667m2) of arable land,and that the nutrient ratio of farmyard manure and chemical fertilizer was 4.9∶5.1 (N∶P2O5∶K2O=1∶0.4∶0.62), and that the total complex grain output per year and the complex output value were 479.6kg and 804.47yuan per 667m2 respectively, and that the manure cost and the pure income from manuring were 148.25 yuan and 716.22 yuan per 667m2 respsctively, and that 12.6kg grain output could be gotten averagely from 1kg nutrient input The main factors affected the manuring effect were topography, cropping systems and crops kinds and manuring quantity from a peasant household as well effected the soil fertility significantly.

结果:平均每667m2耕地投入农家肥1 518 kg,化肥59.9 kg,折氮磷钾纯养分38 kg,农家肥与化肥养分比为4.9∶5.1,N∶P2O5∶K2O=1∶0.4∶0.62,全年粮食复合单产479.6 kg/667m2,复合产值864.47元,肥料成本148.25元/667m2,肥料纯收入716.22元,肥料产投比值5.9,投入1 kg养分产粮12.6 kg。影响投肥效应的主要因素为地势、耕制和作物。农户投肥数量对土壤肥力影响较大。

In recent decades, due to the development of urban and rural construction, road construction, mining, expansion of arable land, artificial cultivation of rubber plantation, etc., taking up large areas of forests, grasslands, wetlands, resulting in a large number of biological species threatened with extinction.

近几十年来,由于城乡建筑的发展,修筑公路、开矿、扩大耕地、人工种植橡胶园等,侵占了大面积的森林、草原、湿地,致使大量生物物种濒临灭绝。

Arable land has declined steadily since 1960 and will decrease by half over the next 50 years, according to the International Service for the Acquisition of Agri-Biotech A plications.

国际农业生物工程应用技术采购管理局称,自1960年以来,耕地面积一直持续下降,并将在今后50年减少一半。

At present, the town of grape planting area of 14,132 acres, accounting for 100% of the arable land has become the province's largest table grape base.

目前,全镇葡萄定植面积达到14132亩,占耕地面积的100%,成为省内最大的鲜食葡萄基地。

The water, soil, light, thermal resources are abundant in Shihezi and the surrounding areas, possessing over 10 million mu of arable land, annual sauce-use tomato plantation is 200 thousand mu, meanwhile large amount of red pepper, safflower, marigold and other economic crops planted here, so plantation area can be extended in accordance with the demand.

石河子及周边县市水、土、光、热资源丰富,拥有1000多万亩耕地,每年种植酱用番茄20万亩,大量种植辣椒、红花、万寿菊等经济作物,并可根据需要扩大种植面积。

Natural resources in the form or arable land.

耕地形式存在的自然资源。

But the most important are the issues like the weakening function on the arable land, the effect of the family planning policy, the floating of the labor force, traditional feudal concepts, as well as issues like extension of the life-span on one hand, and the incapability of self-help on the other, and the construction of Chinese legal institution.

尤其是,重点对农村养老涉及到的土地养老功能弱化、计划生育政策对农村家庭养老的影响、劳动力转移对农村家庭养老的影响、传统家庭伦理观念的转变对农村家庭养老的影响、老年人平均寿命延长和自理能力下降、法制建设等问题进行了深入分析。

Shun Li Shan in the cultivation of arable land him an elephant bird weeding on his behalf.

舜在厉山耕种,大象替他耕地,鸟代他锄草。

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