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: ;

[復制鏈接]
樓主: concession
41#
發(fā)表于 2025-3-28 17:06:13 | 只看該作者
https://doi.org/10.1007/978-3-030-28741-2lities are that one species may have a nitrogen-fixing capability, may promote mycorrhizal fungi development on the roots of another, may produce root exudates that advantage another, may protect another from pests or disease or may shade a smaller species reducing its branchiness or stem form. It w
42#
發(fā)表于 2025-3-28 18:52:58 | 只看該作者
,Visual Law – The Law as Drama?,increase in production with time, probably reflecting improved silvicultural practice that may in fact hide some site degradation. Considerable effort is being made to develop criteria by which long-term sustainability of forestry practices might be judged, together with indicators (that is, specifi
43#
發(fā)表于 2025-3-29 02:17:09 | 只看該作者
44#
發(fā)表于 2025-3-29 05:20:57 | 只看該作者
Biology of Plantation Growth,g the early years of growth after seedlings are planted, the trees grow and expand the amounts of their leaves and fine roots until they reach a more or less constant total amount, determined by the amount of the resources required for growth available from the site, especially water and nutrients.
45#
發(fā)表于 2025-3-29 07:50:24 | 只看該作者
Growth Rates and Wood Quality,aracteristics that determine its quality are discussed. The silvicultural practices used in plantations may affect that quality. In particular, practices that increase tree growth rates, like weed control, thinning or fertilisation, may affect wood quality, particularly wood strength.
46#
發(fā)表于 2025-3-29 15:16:29 | 只看該作者
Choosing the Species and Site,ies might do well in the environmental circumstances of that region. Further choices must then be made of exactly what pieces of land should be purchased. This will often be determined by the growth rates that can be expected on a site. These will be determined by the rainfall, soil fertility and cl
47#
發(fā)表于 2025-3-29 16:02:46 | 只看該作者
48#
發(fā)表于 2025-3-29 20:11:13 | 只看該作者
49#
發(fā)表于 2025-3-30 03:00:06 | 只看該作者
50#
發(fā)表于 2025-3-30 05:22:25 | 只看該作者
Thinning,d be chosen to achieve the best possible financial outcome for the plantation enterprise. Modern thinning regimes commonly involve two or three thinnings before 15–20?years of age, with 100–300 trees per hectare left after the final thinning. The final harvest then occurs at 25–30?years of age.
 關于派博傳思  派博傳思旗下網站  友情鏈接
派博傳思介紹 公司地理位置 論文服務流程 影響因子官網 吾愛論文網 大講堂 北京大學 Oxford Uni. Harvard Uni.
發(fā)展歷史沿革 期刊點評 投稿經驗總結 SCIENCEGARD IMPACTFACTOR 派博系數(shù) 清華大學 Yale Uni. Stanford Uni.
QQ|Archiver|手機版|小黑屋| 派博傳思國際 ( 京公網安備110108008328) GMT+8, 2025-10-8 16:36
Copyright © 2001-2015 派博傳思   京公網安備110108008328 版權所有 All rights reserved
快速回復 返回頂部 返回列表
综艺| 九龙坡区| 曲靖市| 四平市| 福海县| 宜宾市| 大城县| 栖霞市| 平塘县| 峨眉山市| 丁青县| 咸阳市| 星座| 波密县| 定陶县| 马鞍山市| 和龙市| 宁乡县| 射阳县| 泽库县| 浠水县| 望都县| 革吉县| 买车| 宝丰县| 青海省| 邯郸市| 夏邑县| 神池县| 璧山县| 静宁县| 山西省| 灵丘县| 榆树市| 武穴市| 金阳县| 丰都县| 长垣县| 黄梅县| 连江县| 桦甸市|