Number and height of unbrowsed saplings are more appropriate than the proportion of browsed saplings for predicting silvicultural regeneration success

نویسندگان

چکیده

Abstract • Key message The browsing level of oak (Quercus petraea and Quercus robur) fir (Abies alba) provided only a rough estimate the expected regeneration success. Thus, it cannot be recommended as standard measurement to predict forest development, unless number saplings height those are considered. Context Browsing by large herbivores may affect success with an impact that lasts for decades. Aims Whether tree species can used in forestry measure assess whether target values (for instance success) highly selected species, such ( (Mattuschka) Liebl., robur L. )) Abies alba (Mill. )), will reached is unclear need specification. Methods In this study, 985 sampling plots (10 m 2 ) Southern Germany (Baden-Württemberg) containing browsed unbrowsed fir-saplings were analysed. Both considered not sapling density but also different classes (≤ 20 cm; 21–50 51–130 cm) calculated. Results use proxy was statistically partly justified. For relationship between became even weaker new indicator variable which considers two rather than one class exceeding 50 cm (51–80 81–130 cm). Conclusion According these results, and/or predictor damage, efforts mitigate conflicts foresters hunters, needed addresses successful establishment sufficient trees despite browsing, alone.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

the use of appropriate madm model for ranking the vendors of mci equipments using fuzzy approach

abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...

15 صفحه اول

Saplings into oaks.

We decided to work on this idea that GP registrars are competent but not confident. How can we help registrars to leave us not as saplings but as young oaks? In Bristol we now have speciality doctors for 18 months in general practice and if recommendation 45 of Sir John Tookes’ Report on Modernising Medical Careers is carried out then we will come into line with Europe. The length of training i...

متن کامل

Relative shoot height and irradiance and the shoot and leaf properties of Quercus serrata saplings.

Effects of relative shoot height and irradiance on shoot and leaf properties of Quercus serrata Thunb. saplings growing in the understory and in gaps were investigated. Photosynthetic photon flux (PPF) at the location of the shoot relative to that in the open (relative PPF; rPPF) and the height of the shoot base relative to tree height (relative height; rHeight) were measured for all current-ye...

متن کامل

بررسی رابطه کمی و کیفی تجدید حیات با اندازه روشنه در تیپ های مختلف راش (مطالعه موردی: طرح جنگل‌داری سوردار انارستان مازندران)

In the high forests which managing with close-to-nature silvicultural method, the future of forests depends on the stable establishment of saplings planted in the gaps; hence, the current study was done by selection sampling method with the aim of qualitative and quantitative investigation of natural regeneration based on the gap area in two different beech (Fagus orientalis Lipsky) forests: pu...

متن کامل

the innovation of a statistical model to estimate dependable rainfall (dr) and develop it for determination and classification of drought and wet years of iran

آب حاصل از بارش منبع تأمین نیازهای بی شمار جانداران به ویژه انسان است و هرگونه کاهش در کم و کیف آن مستقیماً حیات موجودات زنده را تحت تأثیر منفی قرار می دهد. نوسان سال به سال بارش از ویژگی های اساسی و بسیار مهم بارش های سالانه ایران محسوب می شود که آثار زیان بار آن در تمام عرصه های اقتصادی، اجتماعی و حتی سیاسی- امنیتی به نحوی منعکس می شود. چون میزان آب ناشی از بارش یکی از مولفه های اصلی برنامه ...

15 صفحه اول

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Annals of forest science

سال: 2021

ISSN: ['1286-4560', '1297-966X']

DOI: https://doi.org/10.1007/s13595-021-01034-7