找回密碼
 To register

QQ登錄

只需一步,快速開始

掃一掃,訪問微社區(qū)

打印 上一主題 下一主題

Titlebook: Directions in Tropical Agroforestry Research; Adapted from selecte P. K. R. Nair,C. R. Latt Book 1998 Springer Science+Business Media Dordr

[復(fù)制鏈接]
查看: 42418|回復(fù): 46
樓主
發(fā)表于 2025-3-21 16:37:38 | 只看該作者 |倒序?yàn)g覽 |閱讀模式
書目名稱Directions in Tropical Agroforestry Research
副標(biāo)題Adapted from selecte
編輯P. K. R. Nair,C. R. Latt
視頻videohttp://file.papertrans.cn/281/280694/280694.mp4
叢書名稱Forestry Sciences
圖書封面Titlebook: Directions in Tropical Agroforestry Research; Adapted from selecte P. K. R. Nair,C. R. Latt Book 1998 Springer Science+Business Media Dordr
描述Large areas of the warm, humid tropics in Southeast Asia, the Pacific, Latin America, the Caribbean, and Africa are hilly or mountainous. Jackson and Scherr (1995) estimate that these tropical hillside areas are inhabited by 500 million people, or one-tenth of the current world population, many of whom practice subsistence agriculture. The region most affected is Asia which has the lowest area of arable land per capita. Aside from limited areas of irrigated terraces, most of the sloping land, which constitutes 60% to 90% of the land resources in many Southeast Asian countries, has been by-passed in the economic development of the region (Maglinao and Hashim, 1993). Poverty in these areas is often high, in contrast to the relative wealth of irri- gated rice farms in lowland areas that benefited from the green revolution. Rapid population growth in some countries is also exacerbating the problems of hillside areas. Increasingly, people are migrating from high-potential lowland areas where land is scarce to more remote hillside areas. Such migra- tion, together with inherent high population growth, is forcing a transforma- tion in land use from subsistence to permanent agriculture on
出版日期Book 1998
關(guān)鍵詞Forestry; Plantation; agronomy; forest; paper; policy; soil; soil science; tree
版次1
doihttps://doi.org/10.1007/978-94-015-9008-2
isbn_softcover978-90-481-5025-0
isbn_ebook978-94-015-9008-2Series ISSN 0924-5480 Series E-ISSN 1875-1334
issn_series 0924-5480
copyrightSpringer Science+Business Media Dordrecht 1998
The information of publication is updating

書目名稱Directions in Tropical Agroforestry Research影響因子(影響力)




書目名稱Directions in Tropical Agroforestry Research影響因子(影響力)學(xué)科排名




書目名稱Directions in Tropical Agroforestry Research網(wǎng)絡(luò)公開度




書目名稱Directions in Tropical Agroforestry Research網(wǎng)絡(luò)公開度學(xué)科排名




書目名稱Directions in Tropical Agroforestry Research被引頻次




書目名稱Directions in Tropical Agroforestry Research被引頻次學(xué)科排名




書目名稱Directions in Tropical Agroforestry Research年度引用




書目名稱Directions in Tropical Agroforestry Research年度引用學(xué)科排名




書目名稱Directions in Tropical Agroforestry Research讀者反饋




書目名稱Directions in Tropical Agroforestry Research讀者反饋學(xué)科排名




單選投票, 共有 0 人參與投票
 

0票 0%

Perfect with Aesthetics

 

0票 0%

Better Implies Difficulty

 

0票 0%

Good and Satisfactory

 

0票 0%

Adverse Performance

 

0票 0%

Disdainful Garbage

您所在的用戶組沒有投票權(quán)限
沙發(fā)
發(fā)表于 2025-3-21 23:22:25 | 只看該作者
Soil improvement by trees in sub-Saharan Africa, through (1) input of N by biological N. fixation, (2) retrieval of nutrients from below the rooting zone of crops and (3) reduction in nutrient losses from processes such as leaching and erosion. Trees can increase the availability of nutrients through increased release of nutrients from soil organ
板凳
發(fā)表于 2025-3-22 00:39:45 | 只看該作者
地板
發(fā)表于 2025-3-22 05:25:55 | 只看該作者
5#
發(fā)表于 2025-3-22 11:14:13 | 只看該作者
6#
發(fā)表于 2025-3-22 13:44:37 | 只看該作者
Shade management in coffee and cacao plantations,so compete for growth resources. For example, shade trees buffer high and low temperature extremes by as much as 5 °C and can produce up to 14 Mg ha. yr. of litterfall and pruning residues, containing up to 340 kg N ha. yr.. However, N. fixation by leguminous shade trees grown at a density of 100 to
7#
發(fā)表于 2025-3-22 18:20:50 | 只看該作者
8#
發(fā)表于 2025-3-22 21:23:19 | 只看該作者
9#
發(fā)表于 2025-3-23 01:49:23 | 只看該作者
10#
發(fā)表于 2025-3-23 06:35:36 | 只看該作者
Directions in tropical agroforestry research: past, present, and future,d experiential approach but have subsequently followed a deductive and experimental approach that includes hypothesis testing and the development of predictive capability; agroforestry research is thus being transformed into a rigorous scientific activity. The research agenda, so far, has given high
 關(guān)于派博傳思  派博傳思旗下網(wǎng)站  友情鏈接
派博傳思介紹 公司地理位置 論文服務(wù)流程 影響因子官網(wǎng) 吾愛論文網(wǎng) 大講堂 北京大學(xué) Oxford Uni. Harvard Uni.
發(fā)展歷史沿革 期刊點(diǎn)評(píng) 投稿經(jīng)驗(yàn)總結(jié) SCIENCEGARD IMPACTFACTOR 派博系數(shù) 清華大學(xué) Yale Uni. Stanford Uni.
QQ|Archiver|手機(jī)版|小黑屋| 派博傳思國際 ( 京公網(wǎng)安備110108008328) GMT+8, 2025-10-11 14:07
Copyright © 2001-2015 派博傳思   京公網(wǎng)安備110108008328 版權(quán)所有 All rights reserved
快速回復(fù) 返回頂部 返回列表
嘉黎县| 常宁市| 宁远县| 万盛区| 绥中县| 垫江县| 吉安县| 孝昌县| 纳雍县| 门头沟区| 柘荣县| 周宁县| 壤塘县| 恩平市| 金华市| 松潘县| 福贡县| 清水县| 江川县| 汕尾市| 长乐市| 古交市| 江油市| 枣阳市| 绿春县| 安顺市| 黔江区| 巴马| 嘉鱼县| 滨州市| 碌曲县| 淮南市| 遂溪县| 甘泉县| 黄平县| 天水市| 特克斯县| 进贤县| 永福县| 广丰县| 铅山县|