1) farmland slope
耕地坡度
1.
This paper analyzed the shortcomings of traditional classification for farmland slope,proposed the new method for farmland slop classification by use of GIS technology.
分析传统耕地坡度分级方法的缺陷,提出利用GIS技术的耕地坡度分级新方法。
2) slope grade for cultivated land
耕地坡度图
3) slope cropland
坡耕地
1.
Soil moisture character of agro-forestry and contour ridge tillage technique of slope cropland in Three Gorges Reservoir Area;
三峡库区坡耕地粮经果复合垄作对土壤水分特征的影响
2.
A field experiment was conducted in hilly area of central Sichuan Basin to study the characteristics of leaching and soil P loss in the leachate from slope cropland of purple soil under natural rainfall during maize growth period.
通过对川中丘陵区冬小麦-夏玉米轮作条件下,玉米季不同施肥试验田渗漏水的观测与分析,研究了紫色土坡耕地在天然降雨时渗漏水的产流规律及土壤磷素的淋溶迁移特征。
3.
The results showed that the erosion in the front and middle parts of the slope cropland were the most fierce belt,which was less in the top of slope and soil deposit in the bottom.
运用137Cs示踪了陕北安塞试区坡耕地土壤侵蚀量,并以室内分析的方法研究了黄土高原北部坡耕地土壤侵蚀与土壤性状的关系。
4) slope farmland
坡耕地
1.
Test of runoff and sediment yield regularity on slope farmland;
坡耕地径流小区产流产沙规律
2.
Discussion of exploitation of the slope farmland;
关于坡耕地开发利用的探讨
3.
Comprehensive regulation on soil and water conservation of slope farmland is strategic measure for new countryside construction in hilly areas;
坡耕地水土综合整治是山丘区新农村建设的战略性措施
5) slope land
坡耕地
1.
Accelerating soil and water losses control in slope land of south China by developing Boehmeria nivea enterprise;
振兴苎麻产业 加快南方坡耕地水土流失治理步伐
2.
Soil-water Physical Properties of Slope Land under Different Harness Modes;
竹林等不同治理模式下坡耕地的土壤水分物理性质特征研究
3.
In order to effectively control soil and water loss of slope land smaller than 25° while not effect the grain production of local area, the function on soil and water conservation of mountain rice has been tested.
为有效地根治 2 5°以下缓坡耕地的水土流失又不影响当地的粮食生产 ,对旱稻的水土保持作用进行了试验研究。
6) sloping farmland
坡耕地
1.
Experimental study on rainfall infiltration in sloping farmland of purple soil;
紫色土坡耕地降雨入渗试验研究
2.
Suitability of soil and water conservation measures on sloping farmland in typical black soil regions of Northeast China;
典型黑土区坡耕地水土保持措施适宜性分析
3.
Characteristics of soil loss under different land use combination of sloping farmland and grassland in the Hilly-gully region of Loess Plateau
黄土丘陵沟壑区坡耕地与草地不同配置方式的侵蚀产沙特征
补充资料：耕地坡度分级
耕地坡度分级
slope grade of cultivated land
gengdi podu fenji耕地坡度分级(s lope脚deofcultivatedland)据1984年中国全国农业区划委员会制定的《土地利用现状调查技术规程》，耕地坡度分级如附表。 中国耕地坡度分级表茸韦每 中国是个多山地丘陵的国家，山地丘陵面积占国土总面积的56.8%;坡耕地多，据全国第二次土壤普查，坡度>8o的坡耕地占全国耕地总面积的35.11%，其中8o~250的缓坡耕地占29.麟%，>25“的陡坡耕地占5.47%。 耕地坡度分级，其目的在于揭示坡耕地坡度特征，了解坡耕地水土流失规律，对合理开发利用坡耕地和保护坡耕地、搞好水土保持工作提供科学依据。 坡耕地土壤侵蚀与自然因素和人为因素有关，耕地坡度、坡长、降雨强度、坡地土壤、植被等自然因素中，在同样降雨强度条件下，坡度是引起坡耕地水土流失的最主要因素。据黄土高原水土保持试验资料，在7o以下的缓平耕地，每年每亩流失表土1吨左右;>25。的陡坡耕地，每年每亩流失土壤8~10吨。 据全国第二次土壤普查资料，中国坡耕地最多的是西南区，坡耕地占该区耕地面积71.44%;其次是青藏区，坡耕地占该区耕地的61.75%;再次是黄土高原区，坡耕地占该区耕地的54.98%;最少的是华北区，坡耕地占该区耕地面积21 .33%。 整治坡耕地、控制水土流失的有效办法是采取工程、生物、农业耕作相结合的综合措施，包括:种树种草，修筑梯田，改顺坡种植为横向等高种植，增施有机肥，实行粮草轮作，增加地面覆盖等。对于>25“的陡坡耕地必须退耕还林还牧。 (梁佩谦)
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