Sustainable Agriculture and Food: Four volume set (Earthscan Reference Collections)

466 Modern Agricultural Reforms

Table 18.19 Planting density of main tree species of protective forest in the Yangtze

River Basin

Species Single-storied forest Multi-storied forest

D (m) Stems/ha D (m) Stems/ha

Cupressus

funebris

1.2 × 1.2–1 × 1 6945–10,005 1.8 × 1.8–1 × 1.5 3090–6660

Pinus massoniana 1.5 × 1.5 × 1.5 4400–6660 1.5 × 3–1.5 × 2 2220–3330

Pinus armandii 1.5 × 1.5–1 × 1.5 4440–6660 1.5 × 3–1.5 × 2 2220–3330

Pinus elliottii 2 × 3–2 × 2 1665–2505

Cunningham

lanceolata

2 × 2–1.5 × 2 2505–4440

Cryptomeria

fortunei

2 × 2–1.5 × 2 2505–4440

Metasequoia

glyptostroboides

2 × 3–1.5 × 1.5

1.5 × 2–1 × 1.5

16,665–4440

Larix kaempferi 1.5 × 2–1.5 × 1.5 3330–6660

Quercus

acutissima

2 × 3–2 × 2 3330–4440

Q. variabilis 4 × 2–1.5 × 2 1665–2505 3 × 4–2 × 3

Cinnamomun sp. 2 × 2–1.5 × 1.5 1245–3330 840–1665

Eucalyptus robusta2.5 × 2.5–2 × 2 2505–4440

Camptotheca

acuminata

1.5 × 2–1.5 × 1.5 3 × 3–1.5 × 2

Sassafras tsumu 2 × 2–1.5 × 1.5 1605–2505 3 × 4–1.5 × 3 1110–3330

Alnus

cretnastogyne

4 × 4–3 × 3 3330–4440 5 × 5–3 × 5 825–6720

Melia toosendan 2 × 2–1.5 × 1.5 2505–4440 405–660

Populus sp. 1.5 × 1.5–1 × 1.5 630–1110 3 × 3–1.5 × 2.5

Pterocarya

stenoptera

1.5 × 2–1 × 1.5 3330–4440 2 × 3–1.5 × 2 1110–2685

Robinia

pseudoacacia

2 × 2–1.5 × 1.5 3330–6660 3 × 3–1.5 × 2 1665–3330

Cladrastis wilsonii 3 × 4–2 × 3 4440–6660 1110–3330

Salix babylonica 2 × 2–1.5 × 1.5 2505–4440

Paulownia fortunei 1.5 × 1–1.5 × 1.5 825–1665

Gordonia

acuminata

1.5 × 2–1.5 × 1.5 2490–4440 2 × 2–1.5 × 1.5

Betula luminifera 2 × 3–1.5 × 2 4440–6660 2 × 3–1.5 × 2 2490–4440

Ailanthus altissima 2 × 2–1.5 × 1.5 3330–4440 1665–3330

Albizzia julibrissin 4 × 4–3 × 3 1665–3330 3 × 4–2 × 3

Bischoaia javanica2 × 3–1.5 × 1.5 2025–4400 6 × 6–4 × 5

Ficus lacor 4 × 5–3 × 4 615–1110 270–495