1) purple hilly region
四川紫色丘陵区
1.
Effects of different farming systems on nitrogen and phosphorus loss from surface runoff in purple hilly region in Sichuan
不同农作制对四川紫色丘陵区地表径流氮、磷流失的影响
3) Sichuan hilly area
四川丘陵区
1.
The influence of different farming patterns on soil moisture and wheat yield in rotation paddy-upland crop field of Sichuan hilly area was investigated by comparing conservational farming method of straw covering with traditional farming method of non-straw covering.
在四川丘陵区水旱轮作田进行了保护性耕作与传统耕作栽培模式的对比研究,对秸秆还田条件下的不同耕作模式对土壤水分及小麦产量的影响进行了探讨。
4) Purple hilly region
紫色丘陵区
1.
Soil basic feature of erosive chain in purple hilly region and its relation to soil erosion;
紫色丘陵区侵蚀链的土壤基本性状及与侵蚀的关系
2.
This paper was funded by the project“973”, the process of soil erosion and regulation in main China water erosion region, as Yan Ting as study area which is purple hilly region.
本文在“973”项目——中国主要水蚀区土壤侵蚀过程与调控研究的支持下,以典型紫色丘陵区盐亭县为研究区,基于1:50000地形图、ALOS遥感数据等,利用遥感与地理信息系统技术,以水利部《土壤侵蚀分类分级标准》(SL190-2007)为标准,建立了土壤侵蚀强度分级图,运用地学信息图谱思想,结合景观格局指数分析的方法,分析探讨了土壤侵蚀景观的格局特征,同时分析了土壤强度景观的垂直分布规律和水平分布规律。
5) purple hilly area
紫色丘陵区
1.
Preliminary study on spatial distribution of soil erosion in a small watershed in purple hilly area using ~(137)Cs tracer;
紫色丘陵区小流域土壤侵蚀产沙空间分布的~(137)Cs法初步研究
2.
Impacts of Eulaliopsis Binata Hedgerow System on Soil and Water Losses in Purple Hilly Area, SW-China;
紫色丘陵区蓑草植物篱防治水土流失的效应及机理
3.
In a small watershed of purple hilly area, Sichuan province, the erosion-sediment sections were marked out basing on differences of topographic and soil features, and the characteristics of soils particle component as well as its fractal dimensions were also studied on the routine analyzing results.
以四川紫色丘陵区小流域为例,根据地形部位及土壤性状划分出侵蚀沉积纵横断面,分析其侵蚀沉积特征,并采集土壤样品研究其颗粒组成和分形维数特征。
补充资料：川中丘陵
| 川中丘陵 位于中国四川省中部。华蓥山以西，龙泉山以东，北至米仓山、大巴山，南抵长宁山。又称盆中丘陵。面积约8.4万平方千米。丘陵广布，溪沟纵横为主要地理特征。海拔多在700米以下。中生代红层泥岩和砂岩广布，二者常成互层，厚薄不一。丘陵间多大河，形态有异，曲流发达，西岸有多级阶地，发育紫色土，肥力高，适合多种作物生长，是四川盆地重要农业区和经济林区。地面破碎，平地少，坡度大，水土流失严重，需综合改造利用。 |
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