期刊文献+
共找到5篇文章
< 1 >
每页显示 20 50 100
广东省水稻生物质能的估算 被引量:22
1
作者 张晓浩 黎夏 +1 位作者 施迅 刘凯 《遥感信息》 CSCD 2007年第1期26-29,21,I0003,共6页
利用MODIS传感器的MOD17A3数据,通过处理获取了广东省的NPP(植被净初级生产力)分布图;同时,根据Landsat获取的广东省土地利用类型图,提取出广东省水稻的空间分布图。将两者叠加并进行相关运算和分析,得到全省水稻生物量的分布图及其统... 利用MODIS传感器的MOD17A3数据,通过处理获取了广东省的NPP(植被净初级生产力)分布图;同时,根据Landsat获取的广东省土地利用类型图,提取出广东省水稻的空间分布图。将两者叠加并进行相关运算和分析,得到全省水稻生物量的分布图及其统计数据。同时,进行野外测量并参考已有的研究成果,取稻草和稻秆产量与水稻产量的重量比为0.623,获得水稻总的农作物残余。除去还田、造纸及用做牲畜饲料的那部分,仍有三成左右的可用生物量。研究表明:珠江三角洲经济发展迅猛的城市,水稻生物质能的占有量较少;而在一些边远山区,水稻生物质能占的比重明显偏大。本文通过定量化的研究,为以后广东省水稻生物质能的开发提供了有价值的参考信息。 展开更多
关键词 MOD17A3 可用生物量 水稻 生物质能
在线阅读 下载PDF
A Childhood lost? A case of Gulu Support Children Organization in Northern Uganda
2
作者 Eria Serwajja 《地学前缘》 EI CAS CSCD 北大核心 2009年第S1期60-60,共1页
The number of children affected in conflicts is on the rise in Africa.All childhood experiences of such children are nightmares by war.The conflict in Northern Uganda continues to attract local,national and internatio... The number of children affected in conflicts is on the rise in Africa.All childhood experiences of such children are nightmares by war.The conflict in Northern Uganda continues to attract local,national and international attention.Once a vibrant area,Gulu has been shuttered by the Lord Resistance Army (LRA)atrocities,a region where several vehicles were burnt and people were butchered.The purpose of 展开更多
关键词 GUSCO-Gulu SUPPORT CHILDREN ORGANIZATION Night COMMUTING LRA-Lords resistance army
在线阅读 下载PDF
The Influence of Sea Surface Temperatures on Uganda's Rainfall
3
作者 Saul Daniel Ddumba 《地学前缘》 EI CAS CSCD 北大核心 2009年第S1期95-95,共1页
Uganda’s rainfall is controlled by large scale patterns and synoptic-scale weather features such as the Inter Tropical Convergence Zone(ITCZ), monsoons,meso-scale circulations,subtropical anticyclones and teleconnect... Uganda’s rainfall is controlled by large scale patterns and synoptic-scale weather features such as the Inter Tropical Convergence Zone(ITCZ), monsoons,meso-scale circulations,subtropical anticyclones and teleconnections.This study focused on the influence of sea surface temperatures(SSTs)on Uganda’s March-May(MAM)and September-November (SON)rains.The data used included 展开更多
关键词 SEA SURFACE TEMPERATURES RAINFALL CLIMATE
在线阅读 下载PDF
Climate Change and Pastoral Economy in Kenya:A Blinking Future
4
作者 Julius M.Huho Josephine K.W.Ngaira Harun O.Ogindo 《地学前缘》 EI CAS CSCD 北大核心 2009年第S1期107-107,共1页
This paper examines the changing climatic scenarios and the associated effects on livestock farming in the arid lands(ASALs)of Kenya which covers over 80%of the country.This study was carried out in the semi-arid Muko... This paper examines the changing climatic scenarios and the associated effects on livestock farming in the arid lands(ASALs)of Kenya which covers over 80%of the country.This study was carried out in the semi-arid Mukogodo Division of Laikipia District.This division received a mean annual rainfall of about 507.8 mm and the main source of livelihood was livestock farming.Questionnaire, structured interview,observation and literature 展开更多
关键词 Kenya ASAL pastoralism CLIMATE change DROUGHT
在线阅读 下载PDF
乌干达Kigezi高地土壤侵蚀问题的研究
5
作者 AbesigaN.K.C MusaliK.P 《中国水土保持》 北大核心 2002年第7期11-11,共1页
关键词 kigezi地区 水土保持 乌干达 土壤侵蚀
在线阅读 下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部