1) abandonment of the arable land
弃耕撂荒
1.
Based on the cost-income datum(1980～2002) of farm product and the China Agricultural Yearbook,taking these main crops in the progress of the arable land use as a study case,this paper studied the characters and its driving force for the annual changes of the degree of intensity,the sowing area and the abandonment of the arable land.
结果表明:近20多年来,中国农地利用的集约度与总播种面积均有不断提高与扩大的总体趋势,但在扩大过程中却有三次显著下降变化,在集约度下降时期(1984~1986年、1992~1993年、1997~1999年),农作物播种面积明显缩小,农地弃耕撂荒现象开始显著增加;导致这些变化的根本原因同农地利用过程中成本要求与土地要素纯收益的变化密切相关,但在时间响应上,由于农户要经过一个“观望-权衡-行动”的响应过程,从而往往滞后1~3年。
2) 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。
3) 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。
4) abandoning farmland
弃耕抛荒
1.
This text found several characters of abandoning farmland.
本文针对近年来农地弃耕抛荒的现象和现状,总结了农地弃耕抛荒的几个特点,分析了产生弃耕抛荒的主要原因和生态经济代价,并对遏制农地弃耕抛荒,进一步促进农业及农村经济发展,提出了相应的对策。
5) 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。
6) Fallow
[英]['fæləʊ] [美]['fælo]
撂荒
1.
Effects of Long-Term Fertilization and Fallow on the Retention of Different Forms of Nitrogen in Different Soils;
长期施肥及撂荒土壤对不同外源氮素固持及转化的影响
2.
Compared with the treatment without addition of fertilizers,the fallow treatment increased the contents of SMBC,SMBN,SOC and SON in the 0-10 cm soil layer,but not in the 10-20 cm soil layer.
与不施肥处理相比,土地经长期撂荒后0-10 cm土层SMBC,SMBN,SOC和SON含量显著提高;氮磷钾配施有机肥显著提高小麦各生育期0-10,10-20 cm土层SMBC,SMBN,SOC和SON的含量;单施氮磷钾肥对土壤SMBC,SMBN含量无明显影响,提高土壤SOC,SON的平均含量。
3.
Ecological Functions and Processes in Successive Replanting Stand and Natural Regrowth Following Fallow on Clear-cutting Forestland of Chinese Fir Plantations Ecosystem;
以系统养分管理为手段，研究不同木材采伐利用方式的养分修复周期，分析撂荒后自然植被的生长过程、养分积累及其对土壤养分产生的影响，探索杉木人工林持续经营的措施。
补充资料：撂荒
〈方〉不继续耕种土地，任它荒芜：减少～面积。
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