1) wasteland cropping system
荒地耕作制
2) waste-land farming system
荒地农作制
3) Cultivated land abandoning
耕地撂荒
1.
A research on the sustainable or unsustainable judgment system of cultivated land abandoning;
耕地撂荒可否持续的评判指标体系研究
2.
Cultivated land abandoning was an important problem in the developed non-agricultural economy areas of china since the late 1980 s.
耕地撂荒是20世纪80年代后期以来我国非农经济发达地区面临的重要问题,浙江沿海更为突出,是建设社会主义新农村必须面对的现实问题。
3.
This paper aimed to decide the characteristics which can describe the extent of cultivated land abandoning, select items which apply to judge the sustainability of cultivated land abandoning and divide the sustainability patterns of cultivated land abandoning.
研究目的:确定用于描述耕地撂荒程度的指标,筛选能评判耕地撂荒可持续性的指标项目,划分耕地撂荒现象的可持续模式。
4) idling arable land
耕地抛荒
1.
The substance of idling arable land is that arable land isn’t combined with other production factors in agricultural production,or isn’t combined fully.
通过对湖南省会同县农村的调查研究,发现劳动力数量、质量、结构和价格,对显性抛荒和隐性抛荒有不同的影响;发现农村劳动力剩余和耕地抛荒并存。
5) Abandoned arable land
退耕撂荒地
1.
In order to understand dynamics of soil water-stable aggregates along chronosequences and relationship with soil physico-chemical properties on abandoned arable land in eroded hilly loess plateau,11 arable old land with different ages after being abandoned in Zhifanggou catchment were studied systematically through the approach of substituting the temporal serial with spatial serial.
研究了侵蚀环境退耕撂荒地生态恢复过程中水稳性团聚体的变化规律及其与土壤养分状况及土壤微生物量的关系,结果表明,侵蚀环境退耕撂荒地土壤水稳性团聚体含量迅速提高,在退耕撂荒的第一个10年,水稳性团聚体增大约253。
2.
In order to understand dynamics of soil water-stable aggregates along chronosequences and relationship with soil physico-chemical properties on abandoned arable land in Eroded Hilly Loess Plateau,11 arable old land with different ages after being abandoned in Zhifanggou Catchment were studied systematically through the approach of substituting the temporal serial with spatial seri- al.
本文研究了侵蚀环境退耕撂荒地生态恢复过程中水稳性团聚体的变化规律及其与土壤养分状况及土壤微生物量的关系,结果表明,侵蚀环境退耕撂荒地土壤水稳性团聚体含量迅速提高,在退耕撂荒的第一个10年,水稳性团聚体增大约253。
6) de-farming and wasteland
退耕弃荒地
1.
According to similar natural condition and different years of de-farming, this research studied nitrogen variation features of the desertification soils of different de-farming and wasteland in the western Karst region, Guizhou province.
研究以贵州西部喀斯特石漠化地区退耕弃荒地土壤为研究对象,在保证自然因素相对一致的条件下,根据退耕年限的不同和有无梯化过程,采集土壤样品进行全氮及氮素形态的化学分析。
补充资料：《中国宜农荒地资源》
《中国宜农荒地资源》
Uncropped Land Resources of China
zhongguo yinong huangdi ziyuan《中国宜农荒地资源》(肠记邢例卿J玩ndR比0~ofChina)1 985年由北京科技出版社出版。石玉林、康庆禹、赵存兴、钟烈元、石竹绮编著。全书62.4万字，共10章。该书系统地叙述了中国农垦事业的产生和发展;阐述了中国宜农荒地资源类型、特点、数量、质量、地理分布、评价与分类;对中国东北、内蒙、西北、青藏高原和中、南部地区23片宜农荒地集中分布地区的自然条件及其开展利用方向与措施，进行了详细的介绍;对中国宜农荒地开发潜力、途径、程序及措施进行了总结性的论述。 本书所指的宜农荒地，是以发展农业为目的，适宜于开垦种植农作物、人工牧草和经济林果的天然草场、疏林地、灌木林地和尚待开发利用的土地。指出，全国宜农荒地资源5.3亿亩，划为16个荒地类、42个荒地组、研个荒地型。质量好的一等地占8.9%，质量中等的二等地占22.5%，质量差的三等地占68.6%。5.3亿亩内陆宜农荒地中有2亿多亩分布在牧区，均为天然草地，开垦方向应以建立人工饲草饲料基地为主。约有1亿多亩宜农荒地分布于南方山丘地区，开垦方向应以发展木本油料、茶、果等经济林为主。其余2亿多亩主要用于发展粮食作物。可垦利用系数按印%计，得净耕地约1亿多亩。 (张巧玲)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条