桉树科技
桉樹科技
안수과기
Eucalypt Science & Technology
2015年
3期
1-7
,共7页
吕成群%黄宝灵%叶燕萍%农绍岳%吕世凡
呂成群%黃寶靈%葉燕萍%農紹嶽%呂世凡
려성군%황보령%협연평%농소악%려세범
桉树%草珊瑚%复合经营%经济效益
桉樹%草珊瑚%複閤經營%經濟效益
안수%초산호%복합경영%경제효익
Eucalyptus%Sarcandra glabra%intercropping pattern%economy benefits
为提高桉树人工林地的土地利用率，有效改善生态环境，项目在桂中平原低丘和高丘陵区两种立地条件下，采用随机区组试验设计方法，研究了桉树+草珊瑚两种复合经营模式、3种栽培模式下产量及其经济效益。结果表明：(1)桉树林下培育草珊瑚苗木复合经营比对照桉树纯林增值456623.73元·hm-2，增值率422.67%。(2)桉树人工林下套种草珊瑚的桉1+草1、桉1+草2、桉1+草3等复合经营模式分别比对照桉树纯林增值?1041.89元·hm-2、18934.23元·hm-2、20212.27元·hm-2，增值率分别是?3.95%、71.88%和76.73%，以桉1+草3复合经营模式经济效益最好。(3)桉树林下套种的草珊瑚生长5个月、16个月和25个月比对照桉树纯林分别增值2264.14元·hm-2、15823.69元·hm-2和42334.03元·hm-2，增值率分别是8.73%、49.64%和115.45%。研究结果表明，对于萌芽力强的多年生植物草珊瑚而言，随着生长时间延长，草珊瑚的分蘖数量和生物量增加，经济效益更好。
為提高桉樹人工林地的土地利用率，有效改善生態環境，項目在桂中平原低丘和高丘陵區兩種立地條件下，採用隨機區組試驗設計方法，研究瞭桉樹+草珊瑚兩種複閤經營模式、3種栽培模式下產量及其經濟效益。結果錶明：(1)桉樹林下培育草珊瑚苗木複閤經營比對照桉樹純林增值456623.73元·hm-2，增值率422.67%。(2)桉樹人工林下套種草珊瑚的桉1+草1、桉1+草2、桉1+草3等複閤經營模式分彆比對照桉樹純林增值?1041.89元·hm-2、18934.23元·hm-2、20212.27元·hm-2，增值率分彆是?3.95%、71.88%和76.73%，以桉1+草3複閤經營模式經濟效益最好。(3)桉樹林下套種的草珊瑚生長5箇月、16箇月和25箇月比對照桉樹純林分彆增值2264.14元·hm-2、15823.69元·hm-2和42334.03元·hm-2，增值率分彆是8.73%、49.64%和115.45%。研究結果錶明，對于萌芽力彊的多年生植物草珊瑚而言，隨著生長時間延長，草珊瑚的分蘗數量和生物量增加，經濟效益更好。
위제고안수인공임지적토지이용솔，유효개선생태배경，항목재계중평원저구화고구릉구량충입지조건하，채용수궤구조시험설계방법，연구료안수+초산호량충복합경영모식、3충재배모식하산량급기경제효익。결과표명：(1)안수림하배육초산호묘목복합경영비대조안수순림증치456623.73원·hm-2，증치솔422.67%。(2)안수인공림하투충초산호적안1+초1、안1+초2、안1+초3등복합경영모식분별비대조안수순림증치?1041.89원·hm-2、18934.23원·hm-2、20212.27원·hm-2，증치솔분별시?3.95%、71.88%화76.73%，이안1+초3복합경영모식경제효익최호。(3)안수림하투충적초산호생장5개월、16개월화25개월비대조안수순림분별증치2264.14원·hm-2、15823.69원·hm-2화42334.03원·hm-2，증치솔분별시8.73%、49.64%화115.45%。연구결과표명，대우맹아력강적다년생식물초산호이언，수착생장시간연장，초산호적분얼수량화생물량증가，경제효익경호。
For increasing the global utility of eucalypt plantations and improving the environment, this study was initiated to examine the potential for intercropping of Sarcandra glabra within Eucalyptus plantations. Two eucalypt-S. glabra intercropping patterns and three planting patterns were studied in randomized complete block experiments on a lower hillside site and an upper hillside site in central Guangxi; data collected was used to analyze economic benefits of such intercropping systems. Intercropping systems of eucalypt-S. glabra increased the economic returned by up to 456 624 RMB·hm-2, compared to pure Eucalyptus plantations, providing a 423% higher return. For an intercropping patterns of 1-line eucalypt +1-row S. glabra, 1-line eucalypt + 2-rows S. glabra, 1-line eucalypt + 3-rows S. glabra compared to pure eucalypt plantation the output value increase by ?1 042 RMB·hm-2, 18 934 RMB·hm-2 and 20 212 RMB·hm-2, providing increases of ?3.9%, 71.9% and 76.7% respectively. This showed that the cultivation mode involving 1-line eucalypt + 3-rows S. glabra provided the highest economic benefit. The average returns from the three cultivation modes increased with time, and at 5 months, 16 months, 25 months average output values increase by 2 264 RMB·hm-2, 15 824 RMB·hm-2, 42 334 RMB·hm-2 respectively compared to pure eucalypt plantation, providing increases of 8.7%, 49.6%, and 115.5% respectively. This showed that the highest economic benefit was by continuing the intercropping for 25 months.
