Rumex hypogaeus (synonym Emex australis), commonly known in English as southern threecornerjack, [2] devil's thorn, [citation needed] or double gee [3] (also doublegee, from the old Afrikaner name dubbeltge-doorn - 'double thorned'), is a herbaceous plant of the Polygonaceae.

本文将带领大家进入Google Earth Engine（GEE）的世界，学习如何利用双逻辑斯蒂函数（Double Logistic）拟合法重建NDVI时序数据。 由于GEE上尚未集成非线性优化算法，因此很难直接在GEE上实现双逻辑斯蒂函数拟合。

Doublegee, spiny emex, three corner jack (Emex australis) is a pest in Western Australia (WA). This fact sheet describes the nature of the plant, control methods and how to search, detect and record it. Form: herbaceous — annual. Status: present in …

Spiny emex (Rumex hypogaeus) is a common weed of agricultural areas, particularly crops, and disturbed habitats (e.g. roadsides, tracks, firebreaks, picnic sites, old homesteads and clearings). However, it is often present in highly disturbed sites in conservation reserves and also invades natural areas including creekbanks, river floodplains ...

Control methods for doublegee (Emex australis) a declared pest in Western Australia. Information about this pest can be found on the doublegee: declared pest page. Login or set up a new account on DAFWAs online training site to access: a training course on …

E. australis is a native of South Africa, possibly restricted to the south-west and south-east regions (Smith, 1966) though several authors (e.g. USDA-ARS, 2003) note the native range as including South Africa, Swaziland, Lesotho and Namibia.

GEE 的基本数据类型和语法介绍. 这里罗列一些和JavaScript对应的GEE常见的数据类型，不包括Image、 Feature 、 Geometry 等类型。GEE的这些基本数据类型可以理解为Google对于JavaScript数据类型的二次封装，加入了一些自定义的方法，方便各种调用。相关代码如下： 1.字 …

Doublegee or spiny emex is a significant weed in Western Australia. It is a vigorous annual herb with a strong tap root and a long, fleshy, hairless stem. Latin name - Emex australis. Common names - Doublegee, spiny emex, three-cornered jack, cat-head, prickly jack, giant bull head, Tanner’s curse, bindii, Cape spinach.

Doublegee is a very widespread weed that can grow on a range of soil types. In WA it is mainly found on red-brown soils with neutral to slightly alkaline pH. Just 8–9 doublegee plants/m2 can reduce wheat yield by up to 50%. Doublegee first emerges as …

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