This is a video about (170705) 주간 아이돌 310회 블랙핑크 (BLACKPINK) - Weekly idol ep 310 BLACKPINK
主要支援:已於2009年4月8日到期 延伸支援:已於2014年4月8日到期(仅限Service Pack 3 x86(SP3 x86)及Service Pack 2 x64(SP2 x64)) 新增的功能 移除的功能 版本 开发历史 批評 主题 Windows XP(开发代号:)是微软公司推出供个人电脑使用的操作系统,包括商用及家用的桌上型电脑、笔记本电脑、媒体中心(英语:)和平板电脑等。其RTM版于2001年8月24日发布;零售版于2001年10月25日上市。其名字「」的意思是英文中的「体验」()。Windows ..
Nov 13, 2019- Explore dobdan222's board "교복", followed by 405 people on Pinterest. See more ideas about Asian girl, Korean student and Fashion.
Nov 10, 2019- Explore cutebear36088's board "여고딩", followed by 557 people on Pinterest. See more ideas about School looks, Fashion and School uniform.
Republika obeh narodov Habsburška monarhija Bavarska Saška Franconia Švabska Zaporoški kozaki Velika vojvodina Toskana Drugo obleganje Dunaja je potekalo leta 1683; pričelo se je 14. julija 1683, ko je Osmanski imperij obkolil Dunaj in končalo 11. septembra ..
Robert Henry Goldsborough (January 4, 1779 – October 5, 1836) was an American politician from Talbot County, Maryland. Goldsborough was born at "Myrtle Grove" near Easton, Maryland. He was educated by private tutors and graduated from St. John's College in ..
Anabolic steroids, also known more properly as anabolic–androgenic steroids (AAS), are steroidal androgens that include natural androgens like testosterone as well as synthetic androgens that are structurally related and have similar effects to testosterone. ..
This article needs additional citations for verification. (April 2008) (Learn how and when to remove this template message) |
The sustainable yield of natural capital is the ecological yield that can be extracted without reducing the base of capital itself, i.e. the surplus required to maintain ecosystem services at the same or increasing level over time. The term only refers to resources that are renewable in nature as extracting non-renewable resources will always diminish the natural capital. The sustainable yield of a given resource will generally vary over time with the needs of the ecosystem to maintain itself, e.g. a forest that has recently suffered a blight or flooding or fire will require more of its own ecological yield to sustain and re-establish a mature forest. While doing so, the sustainable yield may be much less. The term sustainable yield is most commonly used in forestry, fisheries, and groundwater applications.
Sustainable yield is an important component of sustainable forest management. In the forestry context it is the largest amount of harvest activity that can occur without degrading the productivity of the stock.
This concept is important in fishery management, in which sustainable yield is defined as the number of fish that can be extracted without reducing the base of fish stock, and the maximum sustainable yield is defined as the amount of fish that can be extracted under given environmental conditions.[1] In fisheries, the basic natural capital or virgin population, must decrease with extraction. At the same time productivity increases. Hence, sustainable yield would be within the range in which the natural capital together with its production are able to provide satisfactory yield.[2] It may be very difficult to quantify sustainable yield, because every dynamic ecological conditions and other factors not related to harvesting induce changes and fluctuations in both, the natural capital and its productivity.[1]
In the case of groundwater there is a safe yield of water extraction per unit time, beyond which the aquifer risks the state of overdrafting or even depletion.
![]() | This sustainability-related article is a stub. You can help Wikipedia by expanding it. |