2) hilly red soils
丘陵红壤
1.
Two experiments in newly-culltivated slope land and upland with three treatments,Nil(CK),NPK(NPK),Straw+NP(SNP),were selected to analyze the effects of ex situ rice straw incorporation on the distribution of organic carbon and nitrogen in water-stable macro-aggregates of hilly red soils.
利用新垦坡地、熟化旱地两个定位试验的典型处理(不施肥、化肥、稻草+NP),研究稻草易地还土对丘陵红壤水稳定性大团聚体(>0。
2.
Above results indicated that,the local drought stress in the hilly red soils was closely related to their water properties,reclamation of soil water properties may be one of important key part in water regulation of hilly red soils in Guangdong.
对不同植被、不同利用方式下广东丘陵红壤水分性能进行了比较研究。
3) Red soil hill region
丘陵红壤
1.
A case study area around the Jiangxi Copper Smeltery in red soil hill region with an area about 7.
7km~2)为例，基于GIS的地统计学方法研究了丘陵红壤区土壤重金属复合污染的空间变异规律。
4) hilly region of red soil
红壤丘陵
1.
Effects of rotation cropping system on soil nutrients in hilly region of red soil in south Hubei;
鄂南红壤丘陵区种植结构调整对土壤养分的影响
5) Hilly Red Soil Region
红壤丘陵区
1.
Temporal and Spatial Characteristics of Surface Water Quality of Typical Basin in Hilly Red Soil Region—A Case Study in Liuyanghe Watershed;
红壤丘陵区典型流域地表水水环境特征研究——以浏阳河流域为例
2.
Dynamics of soil water under Eucommia ulmodes plantation in hilly red soil region of southern China;
南方红壤丘陵区杜仲人工林土壤水分动态
3.
Dynamics of soil water under Vernicia fordii plantation in hilly red soil region of Southern China;
南方红壤丘陵区油桐人工林土壤水分动态
6) hilly region of red soil
红壤丘陵区
1.
Integrated assessment of ecology and environment of hilly region of red soil based on GIS: a case study in Changsha;
GIS支持下的红壤丘陵区脆弱生态环境综合评价——以长沙市为例
2.
The Eco-environmental Efficiencies and Its Control in Agricultural Development in Hilly Region of Red Soil;
红壤丘陵区农业开发中的生态环境效应及其调控
3.
Aiming at the hilly region of red soil with vulnerable ecosystems and supported by the RS and GIS,this study establishes a soil erosion sensitivity evaluation information system database for hilly region of red soil.
针对红壤丘陵区这一典型的脆弱生态系统,在遥感和地理信息系统的支持下,建立了红壤丘陵区土壤侵蚀敏感性评价信息系统。
补充资料：红壤
| 红壤 red earth 发育于热带和亚热带雨林、季雨林或常绿阔叶林植被下的土壤。主要特征是缺乏碱金属和碱土金属而富含铁、铝氧化物，呈酸性红色。主要分布于非洲、亚洲、大洋洲及南北美洲的低纬度地区。大致以南北纬30°为限。在中国，北起长江沿岸，南抵南海诸岛，东自台湾省，西至云贵高原及横断山脉为主要分布区域。红壤的形成是在高温多雨、植被茂密的生物、气候条件下，土壤中富铝化和生物富集相互作用的结果。根据成土条件的变化和富铝化作用的强度，中国境内红壤可分为砖红壤、砖红壤性红壤、红壤、黄壤4个亚类。前2类多见于热带和南亚热带，土体中碱金属及碱土金属含量均低，pH4.5～5.0，适宜种植热带和亚热带作物及水稻。第3类多见于亚热带低山丘陵地带，土壤pH5.0左右，富铝化程度较前2类弱，适宜种植亚热带经济作物和水稻、玉米等。为更好地利用红壤，须对其淋溶作用强、矿质养分少、酸性大、易产生铝锰毒害、保肥性能差和质地粘重或砂粒过多等不良性状进行改良。具体措施是：增施氮、磷、钾等矿质肥料，氮肥宜用粒状或球状深施，磷肥宜与有机肥混合制成颗粒肥施用；施用石灰降低土壤酸性；合理耕作；选种适当的作物、林木，种植绿肥是改良红壤的关键措施；旱地改水田，减少水土流失并有利于有机质积累，提高土壤生产力；保护植被，防治侵蚀，凡坡度大于25°的陡坡应以种树种草为主，小于25°的坡地根据陡缓状况修建宽窄不等的等高梯地或梯田种植。
|
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