Long-Term Assessment of an Innovative Mangrove Rehabilitation Project: Case Study on Carey Island, Malaysia

Table 1

The range of nutrient concentration at reforestation site.

Nutrient concentration (ppm)	Reforestation site (ppm)	Natural habitat (ppm)	Concentration considered toxic (ppm)
Macronutrient
Nitrogen (N)	22.69–57.39	0	10–60^a
Calcium (Ca)	260.28–314.81	151.60–311.47	<500^b
Magnesium (Mg)	265.47–325.71	209.00–255.77	<300^b
Sulphur (S)	1.56–4.01	1.78–4.39	>2^c
Micronutrients
Manganese (Mn)	0.09–0.78	0.01–0.38	0.01–0.8^c
Chlorine (Cl)	15.46–32.84	12.08–27.91	120–300^d
Copper (Cu)	0.01-0.02	0.02–0.04	0.02–0.05^d

Note: ^aGong and Ong [55], ^bClemens [66], ^cReddy and DeLaune [69] and ^dHopkins and Hüner [62].