Rehabilitation of the native tree species in the forest plantations and denuded hills of Namlau commune in Sonla province, Vietnam

SOIL PROPERTIES AND TREE COMPOSITION IN A 27-YEAR OLD Acacia mangium Willd. PLANTATION ON ABANDONED MINING AREA AT PHANGNGA FORESTRY RESEARCH STATION

“…In addition, the Shannon-Wiener index in S27 (1.43), C27 (2.51) and MP (2.77) was lower than that in a 34-year-old A..mangium plantation (3.22) (Marod et al 2013). A. mangium plantation can be highly effective to introduce native trees species (Van et al 2005). In this study, the native species were mostly shade intolerant trees.…”

“…The high tree diversity and number of trees in SF could be due to various factors such as proximity to the forest fragment, rich soil nutrient content and organic matter. The vegetation composition and richness decrease with the increasing distance from the primary forest (Van et al 2005;Ruiz-Jaen & Aide 2005).…”

Acacia Plantation Development and the Configuration of Tree Farmers’ Agricultural Assets and Land Management—A Survey in Central Vietnam

“…Other open thicket areas-often on steep slopes-may have formed as a consequence of war impacts. Some of these open areas have been planted with acacias (largely under Program 661 [49]) purportedly to be 'restored' as 'watershed protection forests'-i.e., 'planted forests' which successively became colonized by native tree species, which will likely eventually revert to some forms of rainforest [176,184]. Many of these old (>15 years) acacia-based 'protection forests' have however recently 22 been logged out (~harvested) for timber by SFCs and MBPFs [60], despite the antecedent green rhetoric [48] that was recurrently complemented by real issues of landslides and floods during storm events [185][186][187].…”

Identifying potential vegetation establishment areas on the dried Aral Sea floor using satellite images

“…It significantly contributes toward the ecological restoration by reducing soil erosion and replenishing soil nutrient stocks (Cacho, 2001; Danso, Bowen, & Sanginga, 1992; Guo & Gifford, 2002; Heuperman, Kapoor, & Denecke, 2002; Jiao, Zhang, Bai, Jia, & Wang, 2010; Katyal & Vlek, 2000; Schachtsiek, Lamers, & Khamzina, 2014; Toderich et al, 2008). Afforestation on the Aral Sea bed is an appropriate way to reduce the harmful effects of soil salinization by decreasing soil salinity and increasing soil water contents and soil enzyme activities (An, Chang, Han, Khamzina, & Son, 2019; An, Kim, Chang, Khamzina, & Son, 2018; Park, Qu, Wan, Ding, & Wu, 2013; Salt, Smith, & Raskin, 1998; Van, Lee, & Van, 2005). Although natural vegetation can be introduced by itself, the establishment of natural vegetation is a slower process that requires time for the vegetation to grow (An et al, 2018).…”